sony hifi mini HCD GN1200D/-SM service manul

1. SERVICE MANUAL
Sony Corporation
Audio Business Group
Published by Sony Techno Create Corporation
SPECIFICATIONS
DVD PLAYER DECK RECEIVER
9-889-084-01
2008D04-1
© 2008.04
E Model
Ver. 1.0 2008.04
DVD
Section
Model Name Using Similar Mechanism HCD-GN1100D
DVD Mechanism Type CDM74HF-DVBU101
Optical Pick-up Name KHM-313CAB/C2NP
TAPE
Section
Model Name Using Similar Mechanism HCD-GN1100D
Tape Transport Mechanism Type CWN42RR603
• HCD-GN1200D is the Amplifier,
DVD player, tape deck and tuner
section in MHC-GN1200D.
Amplifier section
The following are measured at AC 120, 127, 220,
240V 50/60 Hz
Power output (rated): 130 W + 130 W
(6 Ω , 1 kHz, 1% THD)
RMS output power (reference)
Front speaker: 215 W + 215 W
(per channel at 6 Ω , 1 kHz, 10% THD)
Center speaker: 85 W
(per channel at 6 Ω , 1 kHz, 10%THD)
Surround speaker: 90 W + 90 W
(per channel at 6 Ω , 1 kHz, 10% THD)
Subwoofer: 210 W (per channel at 8 Ω , at 100 Hz, 10% THD)
Inputs
VIDEO INPUT:
VIDEO: 1 Vp-p, 75 ohms
AUDIO L/R: Voltage 250 mV, impedance 47 kilohms
TV/SAT AUDIO IN L/R:
Voltage 250 mV/450 mV, impedance 47 kilohms
MIC 1 or 2:
Sensitivity 1 mV, impedance 10 kilohms
Outputs
AUDIO OUT:
Voltage 250 mV, impedance 1 kilohm
VIDEO OUT:
Max. output level 1 Vp-p, unbalanced, Sync. negative
load impedance 75 ohms
COMPONENT VIDEO OUT:
Y: 1 Vp-p, 75 ohms
PB/CB: 0.7 Vp-p, 75 ohms
PR/CR: 0.7 Vp-p, 75 ohms
S VIDEO OUT:
Y: 1 Vp-p, unbalanced, Sync. negative C: 0.286 Vp-p,
load impedance 75 ohms
PHONES:
accepts headphones of 8 ohms or more
Disc player section
System
Compact disc and digital audio and video system
Laser
Semiconductor laser (DVD: λ =650 nm,
CD: λ = 790 nm)
Emission duration: continuous
Frequency response
DVD (PCM 48 kHz): 2 Hz – 22 kHz (±1 dB)
CD: 2 Hz – 20 kHz (±0.5 dB)
Video color system format
Latin American models: NTSC
Russian models: PAL
Other models: NTSC and PAL
Tape deck section
Recording system
4-track 2-channel stereo
Frequency response
50 – 13,000 Hz (±3 dB), using Sony TYPE I tape
HCD-GN1200D
– Continued on next page –

2. HCD-GN1200D
2
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz (50 kHz step)
Antenna
FM lead antenna
Antenna terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Saudi Arabian:
531 – 1,602 kHz (with the interval set at 9 kHz)
Other models:
531 – 1,602 kHz (with the interval set at 9 kHz)
530 – 1,610 kHz (with the interval set at 10 kHz)
Antenna
AM loop antenna
Antenna terminals
External antenna terminal
Intermediate frequency
450 kHz
General
Power requirements
Saudi Arabian model: 120 – 127 V, 220 V or 230 – 240 V
AC, 50/60 Hz, adjustable with voltage selector
Other models: 120 V, 220 V or 230 – 240 V AC, 50/60
Hz, adjustable with voltage selector
Power consumption
350 W
Dimensions (w/h/d) (Approx.)
281 × 361 × 417 mm
Mass (Approx.)
16.0 kg
Design and specifications are subject to change without notice.
(When letters/numbers appear in the
display)
When the self-diagnosis function is activated to
prevent the system from malfunctioning, a
5-character service number (e.g. C 13 50) with a
combination of a letter and 4 digits appears on
the TV screen and the front panel display. In this
case, check the following table.
When displaying the version number on the
TV screen
When you turn on the system, the version
number [VER.X.XX] (X is a number) may
appear on the TV screen. Although this is not a
malfunction and for Sony service use only,
normal system operation will not be possible.
Turn off the system, and then turn on the system
again to operate.
Self-diagnosis Function
First 3
characters of
the service
number
Cause and corrective action
C 13 This disc is dirty.
Clean the disc with a soft cloth
C 31 The disc is not inserted correctly.
Restart the system, then re-insert
the disc correctly.
E XX
(XX is a
number)
To prevent a malfunction, the system
has performed the self-diagnosis
function.
Contact your nearest Sony dealer or
local authorized Sony service
facility and give the 5-character
service number.
Example: E 61 10
VER.X.XX

3. HCD-GN1200D
3
1. SERVICING NOTES ............................................. 4
2. GENERAL .................................................................. 8
3. DISASSEMBLY
3-1. Case................................................................................. 8
3-2. Loading Panel ................................................................. 8
3-3. Tuner Pack ...................................................................... 9
3-4. DVD Mechanism Deck................................................... 9
3-5. Front Panel Assy............................................................. 10
3-6. Tape Mechanism Deck, MIC Board ............................... 10
3-7. CD-SW Board................................................................. 11
3-8. PANEL Board, FUNCTION Board, JOG Board ............ 11
3-9. KARAOKE Board, VIDEO Board, DMB16 Board....... 12
3-10. Back Panel ...................................................................... 12
3-11. PRIMARY Board, EFFECTOR Board........................... 13
3-12. Power AMP PC Board Assy, MAIN Board .................... 13
3-13. SURROUND Board, PA Board ...................................... 14
3-14. Power Transformer (T1200) .......................................... 14
3-15. DRIVER Board, SW Board............................................ 15
3-16. DVD Assy....................................................................... 15
3-17. Optical Pick-up ............................................................... 16
3-18. SENSOR Board .............................................................. 16
3-19. MOTOR (TB) Board....................................................... 17
3-20. MOTOR (LD) Board ...................................................... 17
4. TEST MODE ............................................................ 18
5. MECHANICAL ADJUSTMENTS ...................... 23
6. ELECTRICAL ADJUSTMENTS ........................ 24
TABLE OF CONTENTS
7. DIAGRAMS
7-1. Block Diagram – RF Section –...................................... 27
7-2. Block Diagram – Video Section – .................................. 28
7-3. Block Diagram – Tape/Tuner Section –.......................... 29
7-4. Block Diagram – Main Section – ................................... 30
7-5. Block Diagram – AMP Section –.................................... 31
7-6. Block Diagram – Display/Power Section –.................... 32
7-7. Printed Wiring Board – DMB16 Section (1/2) – ............ 36
7-8. Printed Wiring Board – DMB16 Section (2/2) – ........... 37
7-9. Schematic Diagram – DMB16 Section (1/4) –............. 38
7-10. Schematic Diagram – DMB16 Section (2/4) –............. 39
7-11. Schematic Diagram – DMB16 Section (3/4) –............. 40
7-12. Schematic Diagram – DMB16 Section (4/4) –............. 41
7-13. Printed Wiring Boards – CD Mechanism Section – ...... 42
7-14. Schematic Diagram – CD Mechanism Section –.......... 43
7-15. Printed Wiring Board – MAIN Section – ....................... 44
7-16. Schematic Diagram – MAIN Section (1/5) – ................ 45
7-17. Schematic Diagram – MAIN Section (2/5) – ................ 46
7-18. Schematic Diagram – MAIN Section (3/5) – ................ 47
7-19. Schematic Diagram – MAIN Section (4/5) – ................ 48
7-20. Schematic Diagram – MAIN Section (5/5) – ................ 49
7-21. Printed Wiring Board – PANEL Section –...................... 50
7-22. Schematic Diagram – PANEL Section – ....................... 51
7-23. Printed Wiring Boards – CD-SW, JOG, FUNCTION
And MIC Section –......................................................... 52
7-24. Schematic Diagram – CD-SW, JOG, FUNCTION
And MIC Section –......................................................... 53
7-25. Printed Wiring Board – PA Section –.............................. 54
7-26. Schematic Diagram – PA Section – ............................... 55
7-27. Printed Wiring Board – EFFECTOR Section –.............. 56
7-28. Schematic Diagram – EFFECTOR Section –................ 57
7-29. Printed Wiring Board – VIDEO Section –...................... 58
7-30. Schematic Diagram – VIDEO Section – ....................... 59
7-31. Printed Wiring Board – KARAOKE Section – .............. 60
7-32. Schematic Diagram – KARAOKE Section – ................ 61
7-33. Printed Wiring Board – SURROUND Section –............ 62
7-34. Schematic Diagram – SURROUND Section (1/2) –..... 63
7-35. Schematic Diagram – SURROUND Section (2/2) –.... 64
7-36. Printed Wiring Boards – Power Section – ...................... 65
7-37. Schematic Diagram – Power Section –.......................... 66
8. EXPLODED VIEWS
8-1. Case, Back Panel Section................................................ 80
8-2. Front Panel Section-1...................................................... 81
8-3. Front Panel Section-2...................................................... 82
8-4. Chassis Section ............................................................... 83
8-5. DVD Mechanism Section-1 (CDM74HF-DVBU101) ... 84
8-6. DVD Mechanism Section-2 (CDM74HF-DVBU101) ... 85
9. ELECTRICAL PARTS LIST .............................. 86

4. HCD-GN1200D
4
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostat-
ic break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveform is output several times.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
CAUTION
Use of controls or adjustments or performance of procedures other than
those specified herein may result in hazardous radiation exposure.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270 °C during
repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
SAFETY-RELATED COMPONET WARNING!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
This appliance is classified as a
CLASS 1 LASER product.
This marking is located on the
rear or bottom exterior.
PART No.
Model Part No.
Iran model 3-197-993-4[]
Saudi Arabia model 3-197-994-1[]
Malaysia and Singapore models 3-197-996-1[]
Philippines model 3-197-999-1[]
MODEL IDENTIFICATION
-Back Panel-

5. HCD-GN1200D
5
SECTION 2
GENERAL This section is extracted
from instruction manual.
1 EQ BAND/MEMORY
Press to select a frequency band
when adjusting the graphic
equalizer.
B FLANGER
DELAY
CHORUS
SOUND FLASH
Press to create a party atmosphere.
C SOUND FIELD
Press to select a sound field.
D Display
E AMP MENU
Press to change the spectrum
analyser display or to adjust the
brightness of the display.
F PROGRESSIVE
Press to select the format of the video
signals output from the
COMPONENT VIDEO OUT jacks.
G Disc tray
H PRESET +/–
Press to select a preset station.
>/. (go forward/go
backward)
Press to go forward or go backward.
I TUNING +/–
Press to tune in a radio station.
M / m (fast forward/
rewind)
Press to fast forward or rewind.
J nN (play)
x (stop)
X (pause)
Press to start, stop or pause playback.
K REC PAUSE/START
Press to start recording.
L CD SYNC
Press to select CD Synchro
Recording.
M B PUSH OPEN/CLOSE Z
(Eject B)
Press to insert or eject tape B.
Deck B
N ENTER
Press to select or enter the selection.
O DIRECTION
Press to select the tape playback
option.
P MASTER VOLUME
Turn to adjust the volume.
Q ECHO LEVEL
Turn to adjust the microphone echo
effect.
R MIC 1/2 (jack)
Connect the microphones.
MIC 1/2 LEVEL
Turn to adjust the microphone
volume.
S VIDEO INPUT (jacks)
Connect an audio or video
component.
T PHONES (jack)
Connect the headphones.
U Power illuminator
V PRESET EQ
Press to select a preset effect.
W GROOVE
Press to reinforce the bass.
X A Z PUSH OPEN/CLOSE
(Eject A)
Press to insert or eject tape A.
Deck A
Y DVD
TUNER/BAND
TAPE A/B
TV/SAT
VIDEO
Press to select a function.
Z "/1 (on/standby)
Press to turn the unit on or off.
wj IR Receptor
wk ILLUMINATION
Press to change the power
illuminator.
wl OPERATION DIAL
Turn to select a setting.
e; DISPLAY
Press to display disc information in
the front panel display or to change
the front panel display during Power
Saving Mode.
ea DISC SKIP/EX-CHANGE
Press to exchange other discs during
playback.
Z OPEN/CLOSE
Press to load or eject a disc.
DISC 1 ~ 3
Press to select a disc.
Front panel
Top panel
2 41 3 6
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• LOCATING THE CONTROLS

6. HCD-GN1200D
6
F REPEAT/FM MODE
Press to change the Repeat Play
setting.
Press to select the FM monaural or
stereo reception.
G AUDIO
Press to select the audio format.
H SUBTITLE/D.TUNING
Press to turn off or change the
language of the subtitle.
Press to enter direct tuning mode.
I ANGLE
Press to change the angle.
J
Press to select an album.
K DVD/TUNER MENU
Press to display the menu of the
DVD player.
Press to preset a radio station.
L SOUND FIELD
Press to select a sound field.
M TV VOL +/–*
Press to adjust the TV volume.
VOLUME +/–*
Press to adjust the volume.
N DISPLAY
Press to turn on or off or change the
Control Menu display on the TV
screen.
O TV CH +/–
Press to select a TV channel.
PRESET +/–
Press to select a preset station.
./> (go backward/go
forward)
Press to go backward or go forward.
c STEP C
Press to watch one frame at a time.
REPLAY /ADVANCE
Press to replay the previous scene or
fast forward the current scene.
TUNING +/–
Press to tune in a radio station.
SLOW /SLOW
Press to watch frame by frame.
m/M (rewind/fast forward)
Press to rewind or fast forward.
H* (play)
X (pause)
x (stop)
Press to start, pause or stop playback.
P TV
Hold down TV and press the button
you want to operate the TV.
Q O RETURN
Press to return to the previous
display.
1 THEATRE SYNC
Press to operate the THEATRE
SYNC function.
B TV "/1 (on/standby)
Press to turn the TV on or off.
"/1 (on/standby)
Press to turn the unit on or off.
C DISC SKIP
Press to skip a disc.
D FUNCTION +/–
Press to select a function.
E PICTURE NAVI
Press to search for a scene or a file.
R V/v/B/b
Press to select the settings.
ENTER
Press to enter the selection.
S DVD TOP MENU
Press to display the DVD title.
T -/--
Press to enter a double digit channel
number for TV.
CLEAR
Press to cancel the play mode or clear
a mistake when you press the
incorrect numeric button.
U Numeric buttons*
Press to tune or preset a radio station,
enter a track or file number, etc.
V KEY CONTROL 2/#
SCORE
KARAOKE MODE
KARAOKE PON
Press to enjoy the karaoke function.
W DISPLAY
Press to display disc information in
the front panel display or to change
the front panel display during Power
Saving Mode.
wf TIME/TEXT
Press to check the elapsed playing
time, remaining time, etc.
wg TV INPUT
Press to switch the TV’s input
source.
SLEEP
Press to activate the sleep timer.
wh TIMER MENU
Press to set the time and timer.
* The numeric button 5, TV VOL +, VOLUME
+ and H buttons have a tactile dot. Use the
tactile dot as a reference when operating the
system.
Setting the clock
1 Press "/1 to turn on the system.
2 Press TIMER MENU.
The hour indication flashes in the
display.
If “PLAY SET?” flashes in the
display, press V or v repeatedly to
select “CLOCK SET?”, then press
ENTER.
3 Press V or v repeatedly to set
the hour.
4 Press ENTER.
The minute indication flashes in the
display.
5 Press V or v repeatedly to set
the minute.
6 Press ENTER.
The clock starts functioning.
Note
The clock settings are canceled when you
disconnect the power cord or if a power failure
occurs.
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• REMOTE CONTROL

7. HCD-GN1200D
7
SECTION 3
DISASSEMBLY
• This set can be disassembled in the order shown below.
3-1. CASE
(Page 8)
3-2. LOADING PANEL
(Page 8)
3-3. TUNER PACK
(Page 9)
3-14. POWER TRANSFORMER
(T1200)
(Page 14)
3-12. POWER AMP PC BOARD ASSY,
MAIN BOARD
(Page 13)
3-4. DVD MECHANISM DECK
(Page 9)
3-15. DRIVER BOARD,
SW BOARD
(Page 15)
3-11. PRIMARY BOARD
EFFECTOR BOARD
(Page 13)
3-19. MOTOR (TB) BOARD
(Page 17)
3-20. MOTOR (LD) BOARD
(Page 17)
3-18. SENSOR BOARD
(Page 16)
3-13. SURROUND BOARD,
PA BOARD
(Page 14)
3-8. PANEL BOARD,
FUNCTION BOARD,
JOG BOARD
(Page 11)
3-5. FRONT PANEL ASSY
(Page 10)
3-7. CD-SW BOARD
(Page 11)
3-6. TAPE MECHANISM DECK,
MIC BOARD
(Page 10)
3-10. BACK PANEL
(Page 12)
3-9. KARAOKE BOARD,
VIDEO BOARD,
DMB16 BOARD,
(Page 12)
3-16. DVD ASSY
(Page 15)
3-17. OPTICAL PICK-UP
(Page 16)
SET

8. HCD-GN1200D
8
Note: Follow the disassembly procedure in the numerical order shown below.
3-1. CASE
3-2. LOADING PANEL
DVD mechanism deck (CDM74HF-DVBU101)
Turn the pulley to the arrow direction.
Front side
Pulley
Pull out disc tray.
loading panel
case
three screws
(+BVTP 3 × 10)
two screws
(+BVTP 3 × 10)
two screws
(+BVTP 3 × 10)
two screws
(case 3 TP2)
two screws
(case 3 TP2)
screw
(case 3 TP2)
screw
(case 3 TP2)

9. HCD-GN1200D
9
3-3. TUNER PACK
3-4. DVD MECHANISM DECK
wire (flat type) (9core)
(CN1)
tuner pack
cover (tuner)
two screws
(+BVTP 3 × 8)
DVD mechanism deck
wire (flat type) (13core)
(CN701)
wire (flat type) (21core)
(CN521)
wire (flat type) (13core)
(CN520)
CN401 (5P)
CN505 (6P)
CN800 (5P)
CN802 (2P)
tapping screw
tapping screw
three screws
(+BVTP 3 × 10)
screw
(+BVTP 3 × 10)
three screws
(+BVTP 3 × 10)

10. HCD-GN1200D
10
3-5. FRONT PANEL ASSY
front panel assy
CN100 (9P)
wire (flat type) (17core)
(CN508)
wire (flat type) (11core)
(CN509)
CN504 (3P)
CN907 (3P)
CN503 (8P)
three screws
(+BVTP 3 × 8)
three screws
(+BVTP 3 × 8)
three screws
(+BVTP2.6 (3CR))
screw
(+BVTP2.6 (3CR))
two screws
(+BVTP2.6 (3CR))
tape mechanism deck
two screws
(+BVTP2.6 (3CR))
bracket (MIC shield)
two screws
(+BVTP2.6 (3CR))
knob (MIC)
MIC board
3-6. TAPE MECHANISM DECK, MIC BOARD

11. HCD-GN1200D
11
3-7. CS-SW BOARD
3-8. PANEL BOARD, FUNCTION BOARD, JOG BOARD
two screws
(+BVTP2.6 (3CR))
escutcheon (CD)
three screws
(+BTTP (M2.6))
two screws
(+BTTP (M2.6))
CD-SW board
knob (volume)
nut
holder (jog)
knob jog assy
gear (encoder)
four screws
(+BVTP2.6 (3CR))
four screws
(+BVTP2.6 (3CR))
two screws
(+BVTP2.6 (3CR))
two screws
(+BVTP2.6 (3CR))
three screws
(+BVTP2.6 (3CR))
four screws
(+BVTP2.6 (3CR))
two screws
(+BVTP2.6 (3CR))
two screws
(+BVTP2.6 (3CR))
PANEL board
FUNCTION board
CN904 (3P)
wire (flat type) (25core)
(CN900)
CN905 (2P)
three screws
(+BVTP2.6 (3CR))
JOG board

12. HCD-GN1200D
12
3-10. BACK PANEL
3-9. KARAOKE BOARD, VIDEO BOARD, DMB16 BOARD
wire (flat type) (13core)
(CN801)
VIDEO board
KARAOKE board
CDM cover
CN201 (6P)
wire (flat type) (24core)
(CN101)
DMB16 board
bracket (mediatec)
two screws
(+BVTP 3 × 10)
two screws
(+BVTP 3 × 10)
two screws
(+BVTP 3 × 10)
two screws
(+BVTP 3 × 10)
two screws
(+BVTP 3 × 10)
screw
(+BVTP 3 × 10)
CN1200 (3P)
CN1204 (4P)
CN1202 (2P)
wire (flat type) (17core)
(CN1502)
CN580 (3P)
back panel
two screws
(+BVTP 3 × 10)
two screws
(+BVTP 3 × 10)
screw
(+BVTP 3 × 10)
seven screws
(+BVTP 3 × 10)

13. HCD-GN1200D
13
3-11. PRIMARY BOARD, EFFECTOR BOARD
CN101 (2P)
CN201 (2P)
PRIMARY board
EFFECTOR board
two screws
(+BVTP 3 × 10)
screw
(+BVTP 3 × 8)
CN1213 (8P)
CN1216 (5P)
CN1215 (2P)
CN582 (3P)
CN105 (3P)
screw
(+BV3 (3-CR))
two screws
(+BV3 (3-CR))
two screws
(+BV3 (3-CR))
screw
(+BV3 (3-CR))
POWER AMP PC board assy
MAIN board
DC fan
screw
(+BVTP 3 × 10)
screw
(+BVTP 3 × 8)
two screws
(+BVTP 3 × 8)
3-12. POWER AMP PC BOARD ASSY, MAIN BOARD

14. HCD-GN1200D
14
3-13. SURROUND BOARD, PA BOARD
CN607 (5P)
CN602 (9P)
four screws
(transistor)
SURROUND board
holder
two screws
(transistor)
screw (+BV3 (3-CR))
heat sink
bracket (PC)
PA board
two screws
(+BVTP 3 × 10)
two screws
(+BVTP 3 × 10)
two screws
(+BVTP 3 × 10)
two screws
(+BVTP 3 × 10)
screw
(+BVTP 3 × 10)
CN1213 (8P)
CN1216 (5P)
three screws
DC fan
(M892)
two screws
(+BV3 (3-CR))
three screws
power transfomer (T1200)
TRANS board
CN582 (3P)
CN1215 (2P)
3-14. POWER TRANSFORMER (T1200)

15. HCD-GN1200D
15
CN703 (4P)
DRIVER board
SW board
wire (flat type) (5core)
(CN702)
two screws
(+BTTP (M2.6))
screw
(+BTTP (M2.6))
floating screw
(+PTPWH M2.6)
DVD assy
3-15. DRIVER BOARD, SW BOARD
3-16. DVD ASSY

16. HCD-GN1200D
16
insulator screw
insulator
insulator screw
insulator screw
insulator screw
insulator
optical pick-up
(KHM-313CAB/C2RP)
insulator
insulator
tray
belt (table)
pulley (table)
screw
(+BTTP (M2.6))
SENSOR board
gear (geneva)
CN731
(3P)
floating screw
(+PTPWH M2.6)
floating screw
(+PTPWH M2.6)
floating screw
(+PTPWH M2.6)
3-17. OPTICAL PICK-UP
3-18. SENSOR BOARD

17. HCD-GN1200D
17
Remove the two solderings of motor.
MOTOR (TB) board
table motor assy (M741)
two screws
(+BTTP (M2.6))
wire (flat type) (5core)
(CN742)
stopper
stopper
table
Remove the two solderings of motor.
MOTOR (LD) board
belt (loading)
loading motor assy (M751)
two screws
(+BTTP (M2.6))
3-19. MOTOR (TB) BOARD
3-20. MOTOR (LD) BOARD

18. HCD-GN1200D
18
SECTION 4
TEST MODE
[PANEL TEST MODE]
• This mode is used to check the fluorescent indicator tube,
LEDs, buttons, MASTER VOLUME knob, OPERATION
DIAL knob, model, destination, software version.
Procedure:
1. Press button, [ENTER] button and [DISC 2] button
simultaneously.
2. All LEDs and segments in fluorescent indicator tube are light-
ed up. All LEDs are lighted up in red color except for
LED where the LED is lighted up in green color.
3. When you want to enter to the software version display mode,
press [DISC 1] button. The model information appears on the
fluorescent indicator tube.
4. Each time [DISC 1] button is pressed, the display changes
from MC version, GC version, SYS version, DVD version, ST
version, TC version, TA version, TM version in this order, and
returns to the model information display.
5. Press [DISC 2] button, the key check mode is activated.
6. In the key check mode, the fluorescent indicator tube displays
“K 0 J0 V0”.
Turn the [OPERATIONAL DIAL] clockwise; “J” value in-
creases by one. Turn the [OPERATIONAL DIAL] counter-
clockwise; “J” value decreases by one. Each time a button is
pressed, “K” value increases. Press other keys on main unit to
check whether the key is detected. However, once a button has
been pressed, it is no longer taken into account.
“V” value increases in the manner of 0,1, 2, 3 ... if [MASTER
VOLUME] knob is turned clockwise, or it decreases in the
manner of 0, 9, 8,7 ... if [MASTER VOLUME] knob is turned
counterclockwise.
7. When [EX-CHANGE/DISC SKIP] button is pressed after all
LEDs and segments in fluorescent indicator tube light up, al-
ternate segments in fluorescent indicator tube and LED would
light up. If you press [EX-CHANGE/DISC SKIP] button
again, another half of alternate segments in fluorescent indica-
tor tube and LEDs would light up. Pressing [EX-CHANGE/
DISC SKIP] button again would cause all LED and segments
lights up.
8. To release from this mode, press three buttons in the same
manner as step 1, or disconnect the power cord.
[COMMON TEST MODE]
• This mode is used to check operations of the respective sec-
tions of Amplifier and Tape.
Procedure:
• To enter Common Test Mode
1. Press button, [ENTER] button and [DISC 3] button si-
multaneously.
2. The DVD ring indicators, the line below DVD ring indicators
and TAPE A and B indicators flash synchronously on the fluo-
rescent indicator tube. The function is changed to TV.
* Check of Amplifier
1. Press [EQ BAND] button repeatedly until a message “GEQ
MAX” appears on the fluorescent indicator tube. GEQ increas-
es to its maximum.
2. Press [EQ BAND] button repeatedly until a message “GEQ
MIN” appears on the fluorescent indicator tube. GEQ decreas-
es to its minimum.
3. Press [EQ BAND] button repeatedly until a message “GEQ
FLAT” appears on the fluorescent indicator tube. GEQ set to
flat.
4. When the [MASTER VOLUME] knob is turned clockwise
even slightly, the sound volume increases to its maximum and
a message “VOLUME MAX” appears on the fluorescent indi-
cator tube.
5. When the [MASTER VOLUME] knob is turned counter-clock-
wise even slightly, the sound volume decreases to its minimum
and a message “VOLUME MIN” appears on the fluorescent
indicator tube.
* Tape function
1. When a tape is inserted in Deck B and recording is started, the
function is changed to TV automatically. When [CD SYNC]
button is pressed during recording in function, ALC (Auto-
matic Logic Control) is turned on.
2. During recording, press button will stop the recording
and the function is changed to TAPE B and rewind the tape in
Deck B until the recording start position and playback of the
tape in Deck B is started. If [REC PAUSE/ START] button is
pressed for a pause and pressed again to resume recording dur-
ing recording time, when the tape is rewind, the tape will be
rewind until the position where the pause is applied.
* To release from Common Test mode
1. To release from this mode, press button.
2. The cold reset is enforced at the same time.
[COLD RESET]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. Press button to turn on the system.
2. Press button, [ENTER] button and button simulta-
neously.
3. The message “COLD RESET” appears on the fluorescent indi-
cator tube. Then, the fluorescent indicator tube becomes blank
for while, and the set is reset.
[VACS ON/OFF]
• This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:
1. Press button to turn on the system.
2. Press button and [ILLUMINATION] button simultane-
ously. The message “VACS OFF” or “VACS ON” appears on
the fluorescent indicator tube.
[TUNER STEP CHANGE]
• The step interval of AM channels can be toggled between 9
kHz and 10 kHz.
This mode is not available for Saudi Arabia model.
Procedure:
1. Press button to turn on the system.
2. Press [TUNER/BAND] button repeatedly to select the “AM”.
3. Press button to turn off the system.
4. Press [ENTER] button and button simultaneously. The
system will turn on automatically. The message “AM 9K
STEP” or “AM 10K STEP” appears on the fluorescent indica-
tor tube and thus the channel step is changed.
[DVD SHIP MODE (WITH MEMORY CLEAR)]
• This mode moves the optical pick-up to the position durable to
vibration and clears all data including preset data stored in the
RAM to initial conditions. Use this mode when returning the
set to the customer after repair.

19. HCD-GN1200D
19
Procedure:
1. Press button to turn on the system.
2. Select DVD function.
3. Press button, [SOUND FLASH] button and but-
ton simultaneously during “DVD NO DISC” condition. The
system will turn off automatically.
4. After the “STANDBY” blinking display finishes, a message
“MECHA LOCK” appears on the fluorescent indicator tube
and the DVD ship mode is set.
5. The Memory is clear after AC Power OFF.
[DVD SHIP MODE (WITHOUT MEMORY CLEAR)]
• This mode moves the optical pick-up to the position durable
to vibration. Use this mode when returning the set to the cus-
tomer after repair.
Procedure:
1. Press button to turn on the system.
2. Select DVD function.
3. Press [DVD] button and button simultaneously during
“DVD NO DISC” condition. The system will turn off auto-
matically.
4. After the “STANDBY” blinking display finishes, a message
“MECHA LOCK” appears on the fluorescent indicator tube
and the DVD ship mode is set.
[DVD TRAY LOCK MODE]
• This mode is used to lock the disc tray. When this mode is acti-
vated, the disc tray will not open when [OPEN/CLOSE] button
or [EX-CHANGE/DISC SKIP] button is pressed. The message
“LOCKED” appears on the fluorescent indicator tube.
Procedure:
1. Press button to turn on the system.
2. Select DVD function.
3. Press button and [OPEN/CLOSE] button simultaneously
and hold down until “LOCKED” or “UNLOCKED” appears
on the fluorescent indicator tube (around 5 seconds).
[TV/SAT SWITCHING]
• This mode let you switch from TV to SAT and vice-versa.
Procedure:
1. Press button to turn on the system.
2. Select TV function.
3. Press [TV/SAT] button and button simultaneously. The
function will change to SAT. Press the same buttons again to
change from SAT to TV.
[DVD COLOR SYSTEM]
• This mode let you change the color system of the video output
from PAL to NTSC or vice-versa.
Procedure:
1. Press button to turn on the system.
2. Select DVD function.
3. Press button again to turn off the system.
4. Press button and button simultaneously. The sys-
tem will turn on automatically.
5. The message “COLOR PAL” or “COLOR NTSC” appears on
the fluorescent indicator tube.
[REMOTE COMMANDER DISABLE MODE]
• This mode let you disable the remote commander reception.
When this mode is activated, the system will not response if
the button on the remote commander is pressed. The message
“Remote Disable” appears on the fluorescent indicator tube.
This mode is essential for conducting test and repairing when
no interruption from the other remote commander is expected.
This mode is cancelled automatically when the AC power sup-
ply is turned off.
Procedure:
1. Press button to turn on the system.
2. Press button, [FLANGER] button and [DISC 2] button
simultaneousl untill“RemoteDisable” or “RemoteEnable” ap-
pears on the fluorescent indicator tube.
[TCM OFFLINE MODE]
• This mode is used to prevent the system from turning off au-
tomatically when TCM is not connected. Therefore, measure-
ments can be done even when TCM is not connected during
production.
• Procedure:
1. When the system is turned off, press [EQ BAND] button,
[TAPE A/B] button and button simultaneously. The sys-
tem will turn on automatically.
2. The message “TCM OFFLINE” will appears on the fluores-
cent indicator tube.
• To release from TCM Offline Mode, perform “COLD RESET”
or turn off the power supply.
[DVD FIRMWARE DISPLAY]
• This mode is used to display the DVD firmware version.
• Procedure:
1. Press button to turn on the system.
2. Press [DVD] button to switch to DVD function.
3. Press button again to turn off the system.
4. Press button and button.
The system turns on automatically.
5. The version of DVD firmware appears on the TV screen.
[DVD OFFLINE]
• This mode is used to enable audio output from the function
other than DVD function in order to check the audio output
from the system without connecting DVD.
This model is also used to prevent system enter protector mode
when DVD is not connected.
• Procedure:
1. When the system is turnd off, press button, [FLANGER]
button and [DISC 1] button simultaneously and the message
“DVD OFFLINE” appears on the fluorescent indicator tube.
• To release from DVD Offline Mode
To release from this mode, perform “COLD RESET” or turn
off the power supply.
[VACS DISPLAY]
• This mode is used to check the VACS level.
• Procedure:
1. Press button to turn on the system.
2. Press button, [SOUND FIELD] button and [DISC 2] but-
ton simultaneously.
3. The VACS Level Display, the fluorescent indicator tube dis-
plays “VATB F APC”. “V” represent VACS , A represent
VACS level which is triggered by signal level, “T” represent
Thermal VACS NEO, B represent VACS level which is trig-
gered by temperature, “F” represent FAN is triggered by soft-
ware to turn in to high speed, “AP” represent APVACS (Abuse

20. HCD-GN1200D
20
Protection VACS) and “C” represent APVACS level which is
triggered.
[DVD SERVICE MODE]
• This mode let you make diagnosis and adjustment easily by
using the remote commander and TV. The instructions, diag-
nostic results, etc. are given on the on-screen display (OSD).
Procedure:
1. Press button to turn on the system.
2. Select DVD function.
3. Press button and [OPEN/CLOSE] button simultaneously
and then turn [MASTER VOLUME] knob clockwise.
4. The message “SERVICE IN” appears on the fluorescent indi-
cator tube and the Top Menu of Remocon Diagnosis Menu ap-
pears on the on-screen display on the TV. The model name and
revision number is displayed at the bottom of the on-screen
display.
Remocon Diagnosis Menu
0. External Chip Check
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History Check
4. Version information
Model name : XXXXX-XX
IF-con : Ver.XX.XX(XXXX)
Syscon : Ver.X.XXX
5. To execute each function, press its number by using numeric
button on the remote commander.
6. To release from this mode, press button to turn off the sys-
tem.
[EXECUTE IOP MEASUREMENT]
In order to execute IOP measurement, the following standard
procedures must be followed.
Remocon Diagnosis Menu
0. External Chip Check
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History Check
4. Version information
Model name : XXXXX-XX
IF-con : Ver.XX.XX(XXXX)
Syscon : Ver.X.XXX
2. Select “2. Drive Manual Operation” by pressing [2] button on
the remote commander. The screen will appear as follows.
Drive Manual Operation
1. Servo Control
2. Track/Layer Jump
3. Manual Adjustment
4. Mech test mode
5. MIRR time adjust
0. Return to top Menu
3. Select “3. Manual Adjustment” by pressing [3] button on the
remote commander. The screen will appear as follows.
Manual Adjust
1. Track Balance Adjust :
2. Track Gain Adjust :
3. Focus Balance Adjust :
4. Focus Gain Adjust :
5. Eq boost Adjust :
6. Iop :
7. TRV. Level :
8. S curve (FE) Level :
9. RFL(PI) Level :
0. MIRR Time :
Change value
RETURN Return to previous menu
4. Select “6.Iop” by pressing [6] button on the remote
commander.
5. Wait until a hexadecimal number appear as follows.
Manual Adjust
1. Track Balance Adjust :
2. Track Gain Adjust :
3. Focus Balance Adjust :
4. Focus Gain Adjust :
5. Eq Boost Adjust :
6. Iop : ED :
7. TRV. Level :
8. S curve (FE) Level :
9. RFL(PI) Level :
0. MIRR Time :
Change value
RETURN Return to previous menu
6. Convert data from hexadecimal to decimal using conversion
table.
7. Please find the label on the rear of the BU (Base Unit).
The default IOP value is written in the label.
8. Subtract between these two values.
9. If the remainder is smaller than 93 (decimal), then it is OK.
However if the value is higher than 93, then the BU is defec-
tiveand need to be change.
10. Press RETURN button on the remote commander to return
to previous menu.
11. Press [0] button on the remote commander to return to the Top
Menu of Remocon Diagnosis Menu.
12. Press button to turn off the set.

21. HCD-GN1200D
21
[EMERGENCY HISTORY CHECK]
Information of Emergency History.
1. Enter DVD Service Mode.
2. Select “3. Emergency History” by pressing [3] button on the
remote commander. The screen will appear as follows.
Emg.History Check
Laser Hours CD 999h 59min
1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45
2. 02 02 01 01 00 A9 4B 00
00 00 00 00 00 00 23 45
DVD 999h 59min
Next Next Page Prev Prev Page
0 Return to top Menu
3. You can check the total time when the laser is turned on during
playback of DVD and CD from the above menu. The maxi-
mum time, which can be displayed are 999h 59min.
4. You can check the error code of latest 10 emergency history
from the above menu. To view the previous or next page of
emergency history, press or on the remote com-
mander. “Error code” consists of the following (a), (b) and
(c).
(a) Error code
Example of Error code
1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45
The meaning off error code is as follows.
01: Communication error (No reply from syscon)
02: Syscon hung up
03: Power OFF request when syscon hung up
19: Thermal shutdown
24: MoveSledHome error
25: Mechanical move error (5 Changer)
26: Mechanical move stack error
30: DC motor adjustment error
31: DPD offset adjustment error
32: TE balance adjustment error
33. TE sensor adjustment error
34. TE loop gain adjustment error
35. FE loop gain adjustment error
36. Bad jitter after adjustment
40. Focus NG
42. Focus layer Jump NG
52. Open kick spindle error
51: Spindle stop error
60: Focus on error
61: Seek fail error
62: Read Qdata/ID error
70: Lead in data read fail
71: TOC read time out (CD)
80: Can’t buffering
81: Unknown media type
(b) Parameter of error code
Example of Error code
1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45
This is the detail of error code.
(c) Time of error code
Example of Error code
1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45
This is the laser time when an error occured.
5. How to clean laser hours
Press DISPLAY button and then press [CLEAR] button.
Both CD and DVD data are cleared.
Emg.History Check
Laser Hours CD 0h 0min
1. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45
2. 02 02 01 01 00 A9 4B 00
00 00 00 00 00 00 23 45
DVD 0h 0min
Next Next Page Prev Prev Page
0 Return to top Menu
6. How to clean Emergency History
Press [DVD TOP MENU] button and then press [CLEAR]
button.
The error code for all emergency history would be reset.
Emg.History Check
Laser Hours CD 999h 59min
1. 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
2. 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
DVD 999h 59min
Next Next Page Prev Prev Page
0 Return to top Menu
7. To return to the Top Menu of Remocon Diagnosis Menu, press
[0] button on the remote commander.

22. HCD-GN1200D
22
[CLEAR THE INITIALIZE SETUP DATA]
Press [DVD MENU] button and then press [CLEAR] button on the
remote commander.
Emg.History Check
Laser Hours CD 999h 59min
Initialize setup data...
DVD 999h 59min
Next Next Page Prev Prev Page
0 Return to top Menu
[VERSION INFORMATION CHECK]
Information of firmware version.
1. Enter DVD service Mode.
2. Select “4. Version Information” by pressing [4] button on the
remote commander. The screen will appears follows.
Version information
Firm (Main) : Ver. xxxxx
Firm (Sub) : xxxxx
RISC : xxxxx
8032 : xxxxx
Audio DSP : xxxxx
Servo DSP : xxxxx
0 Return to top Menu
3. To return to the Top Menu of Remocon Diagnosis Menu, press
[0] button on the remote commander.
[ERROR MESSAGE]
1. GC error message
• Display
Display on fluorescent indicator tube,
[GC ERR01]
When “GC ERR01” message appears, all LEDs lights up and
set becomes hang.
Set does not respond to any main unit keys or remote controller
keys.
• What to do
1. Please check the model resistor value and replace with correct
parts.
2. Plug in the set. The error message shall not be appear.

23. HCD-GN1200D
23
SECTION 5
MECHANICAL ADJUSTMENTS
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads pinch rollers
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head demagne-
tizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
Mode Torque meter Meter reading
FWD CQ-102C
2.9m N • m to 6.9m N • m
30 to 70 g • cm
(0.42 – 0.97 oz • inch)
FWD
back tension
CQ-102C
0.15m N • m to 0.59m N • m
2 to 6 g • cm
(0.03 – 0.08 oz • inch)
REV CQ-102RC
2.9m N • m to 6.9m N • m
30 to 70 g • cm
(0.42 – 0.97 oz • inch)
REV
back tension
CQ-102RC
0.15m N • m to 0.59m N • m
2 to 6 g • cm
(0.03 – 0.08 oz • inch)
FF/REW CQ-201B
4.8m N • m to 16.7m N • m
49 to 170 g • cm
(0.68 – 2.36 oz • inch)

24. HCD-GN1200D
24
SECTION 6
ELECTRICAL ADJUSTMENTS
[FM Tune Level Check]
Procedure:
1. Turn the power on.
2. Input the following signal from Signal Generator to FM
antenna input directly.
* Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation : 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)
Note: Please use 75 ohm “coaxial cable” to connect SG and the set. You
cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
3. Set to FM tuner function and tune A, B and C signals.
4. Confirm “TUNED” is lit on the display for A, B and C
signals.
The mark of “TUNED” means “The selected station signal is
received in good condition.”
TUNER SECTION
FM signal generator
OUT (75 )
SET
DECK SECTION
Tape Signal Used for
P-4-A100 10 kHz, –10 dB Azimuth Adjustment
0 dB=0.775V
1. Demagnetize the record/playback head with a head demagne-
tizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjusted.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in this
service manual. (As a general rule, playback circuit adjustment
should be completed before performing recording circuit ad-
justment.)
6. The adjustments should be performed for both L-CH and
RCH.
7. Switches and controls should be set as follows unless other-
wise specified.
• Test Tape
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
Note: Perform this adjustments for both decks
Procedure:
1. Mode: Playback
set
MAIN board
CN510
Pin (L-CH)
Pin (R-CH)
MAIN board
CN510
Pin (GND)
+
–
level meter
test tape
P-4-A100
(10 kHz, –10 dB)
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
Screw
position
L-CH
peak
within
1dB
Output
level
L-CH
peak
R-CH
peak
within
1dB
Screw
position
R-CH
peak
DECK A DECK B

25. HCD-GN1200D
25
DVD SECTION3. Mode: Playback
set
MAIN
board
CN510
test tape
P-4-A100
(10 kHz, –10 dB)
pin
oscilloscope
L-CH
R-CH
V H
waveform of oscilloscope
in phase 45 90 135 180
good wrong
pin
pin
L
R
4. After the adjustments, apply suitable locking compound to the
pats adjusted.
Adjustment Location: Playback Head (Deck A).
Record/Playback/Erase Head (Deck B).
forward reverse
[TEST DISC LIST]
Use the following test disc on test mode.
• CD: YEDS-18 (PART No. 3-702-101-01)
or
PATD-012 (PART No. 4-225-203-01)
• DVD (SL)
NTSC HLX-503 (PART No. J-6090-069-A)
or
HLX-504 (PART No. J-6090-088-A)
PAL HLX-506 (PART No. J-6090-077-A)
• DVD (DL)
NTSC HLX-501 (PART No. J-6090-071-A)
or
HLX-505 (PART No. J-6090-089-A)
PAL HLX-507 (PART No. J-6090-078-A)
Note: When the BASE UNIT is replaced, perform the IOP mea-
surement
(Refer to page 18 of the TEST MODE).
[RFMON Level Check]
Connection:
+
–
CN105 pin (RFMON)
CN105 pin (GND)
oscilloscope
DMB16 board
Procedure:
1. Connect an oscilloscope to CN105 pin 6 (RFMON) and CN105
pin 3 (GND) on the DMB16 board.
2. Turn the power on.
3. Set the test disc (DVD: HLX-503 (NTSC) or HLX-504 (PAL),
CD: YEDS-18) on the tray and press button to play-
back.
4. Confirm that oscilloscope waveform is clear and check RF-
MON signal level is correct or not.
Note: A clear RFMON signal waveform means that the shape “◊”
can be clearly distinguished at the center of the waveform.
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
RFMON signal waveform
level: 0.58 to 1.23 Vp-p (DVDSL)
0.57 to 1.1 Vp-p (CD)

26. HCD-GN1200D
26
Checking Location: DMB16 board (Side A)
IC102
IC101
IC104
IC201
CN105CN109
DMB16 BOARD (SIDE A)
CN105 pin (GND)CN105 pin (RFMON)
16

27. HCD-GN1200D
HCD-GN1200D
2727
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAM – RF Section –
DETECTOR
6
2
3
4
5
10
19
18
252 253DVDRFIP
DVDA
DVDB
DVDC
DVDD
TPI
TNI
MD
MC
LD01
MDI2
LD02
MSW
MDI1
OSP OSN
CD/DVD RF AMP,
FOCUS/TRACKING ERROR AMP
DVD SYSTEM PROCESSOR
DIGITAL SERVO PROCESSOR
IC102 (1/2)
OPTICAL PICK-UP
BLOCK
(KHM-313CAB)
2AXIS
DEVICE
FOCUS/
TRACKING
COIL
23
20
22
21
36 48
43
12
9
37 1
Q102 (2/2)
AUTOMATIC POWER
CONTROL (FOR DVD)
Q102 (1/2)
AUTOMATIC POWER
CONTROL (FOR CD)
LASER
DIODE
(FOR CD)
LASER
DIODE
(FOR DVD)
FOCUS COIL
DRIVE
42
41
BUFFER
35 3
34 4
TRACKING COIL
DRIVE
32
31
38
42
37
41
30
SLED MOTOR
DRIVE
FOCUS/TRACKING COIL DRIVER,
SPINDLE, SLED MOTOR DRIVER
IC201
27
28
SPINDLE MOTOR
DRIVEMMM1
(SPINDLE)
S1
(LIMIT)
46
47
FMO
FOO
DND
TRO
VREFO
40 IOPMON
FOO
RF
A
B
C
D
F
E
CD LD
VC
PD
WR650
VR780
DVD LD
FCS+
MSW
FCS–
TRK+
REG02 REG01
TRK–
SP+
SP–
SL+
SL–
NC
NC
VREFOVREFO
9 NB
8 NA
V2O29
30
29 SLED MOTOR
DRIVE
MMM2
(SLED)
50
BUFFER
19
20
22
45
21
42
40
SYSTEM
CONTROLLER
IC401 (1/6)
99IFCK
107TXD
28V2 REF0
MTK-SCO33
100XIFCS MTK-XIFCS24
110PRST
TXD
CN105
RXD
V2REF0
TXD1
RXD1
CLK1
RFMON
106RXD
MTK-RESET25
98IFSDO MTK-SOD32
101IFSDI
205MIC/VSYNC MIC STATUS21
105IFBSY MTK-BUSY23
207KRMOD/HSYNC MTK-KRMOD22
MTK-SIO31
TRO
FMO
FOO
DMO
TRO
10
13
FMO
IOP
IOPMON
DMO
D/A
CONVERTER
IC301
D/A
CONVERTER
IC3601
IC3771 AMP
IC3711 AMP
IC3751 AMP
IC3731 AMP
219ASDATA2 SDTI316
222ASDATQ3 SDTI413
218ASDATA1 SDTI215
32ROUT4- 6
1
7
38LOUT4+ 3217ASDATA0 SDTI114
37LOUT4- 2
33ROUT4+
103SDA
MCLK
PDN
AINR
AINL
11
13
102SCL
SCLK12
LRCK10
209SPDATA/SMSDI SDTO9
206VOICE/YUV7
208SMSCK
5
47ROUT1- 6
2LOUT1+ 3
1LOUT1- 2
48
DM_L
DM_R
MB_FL
MB_FR
FC
SW(LEE)
MB_SL
MB_SR
Q3801
BIAS
BIAS
(IC3711,3731,3751,3771)
AU+5V
ROUT1+ 5
39ROUT3- 6
42LOUT3+ 3
41LOUT3- 2
40ROUT3+ 5
43ROUT2- 6
46LOUT2+ 3
45LOUT2- 2
44ROUT2+ 5
213ALRCK LRCK17
220XRST PDN8
214ABCK BICK9
215ACLK MCLK10
CSL19
SDA20
211 MUTE123
246 RFRPAC
245 RFRPDC
210 MUTE
170 TSD M
47 SPFG
176 LIMSW
EEPROM
IC103SCL
SDA
Q101
Q103
1
7
1
7
1
7
RIN
XVOICE
SCORE
LIN
1
2
5
6
CN402
(1/3)
(FOR CHECK)
(FOR CHECK)
1
2
5
6
11
MAIN
SECTIONA
MAIN
SECTIONF
MAIN
SECTIONB
• Signal Path
: CD PLAY
: DVD PLAY
(Page 30)
(Page 30)
(Page 30)

28. HCD-GN1200D
HCD-GN1200D
2828
7-2. BLOCK DIAGRAM – VIDEO Section –
• Signal Path
: VIDEO
: Y
: CHROMA
: COMPONENT VIDEO
: R, G, B
IC102(2/2)
DVD SYSTEM PROCESSOR
YUV1
YUV6
YUV2
DISC/X
YUY3
YUY4
YUY5
WODE
IC801
VIDEO AMP, 75 OHM DRIVER
IC401(2/6)
SYSTEM CONTROL
J801
J802
J800
12 CBIN
10 CYIN
4
9
CVBSIN
I/P
18
3 13
CBOUT
MUTE1
14
25
CRIN
SI
20CYOUT
23VOUT
2 CIN
6194
196
168
198
200
202
203
YIN
26COUT
21YOUT
16CROUT
CBOUT
CYOUT
Q800
VOUT
CROUT
AV SEL1
88
87
MUTE2
43
21
IC101
FLASH ROM
125-123, 121, 120, 118,
117, 115, 135, 133-128, 126
146, 147, 149-151,
158-160, 162, 164-166
22-26,
29-35
HIGHA0-7
IOA0-7, IOA18-IOA20
A16, A17
AD0 – AD7
A1-A21
81-84,86-88,91 53-61, 67-72, 74-76,
78, 89, 92, 93
HD0–HD7
A0–A21
A0
2645
CE
WE
28
OE
11
A0 – A21DQ15/A-1
77
IOCS
IOWA
79
IOOE
66
DQ0 – DQ7
RCLK
IC104
SDRAM
38
DRCLK
RD0 – RD15 RA0 – RA11
RA0 – RA11RD0 – RD15
142
RCS
19
RCS
138
RWE
16
RWE
140
RAS
18
RAS
139
CAS
17
CAS
DQM0
15
DQM0
DQM139DQM1
CLE
37
CKE
143
BA0
20
BS0
BA1
21
BS1
COMPONENT
VIDEO OUT
S VIDEO
OUT
VIDEO OUT
Y
YC
PB/CB
PR/CR
VIDEO MUTE
VIDEO-OUT-SW
V MUTE
VIDEO OUT SW
29,31,33,35,38,40,42,44 25-16, 10-1, 40,12,48
145 156 113 137 157
2,4,5,7,8,10,11,13,42,44,45,47,48,50,51,53
TBL SENS 27
OPENSW
Q731
S751
(OPEN)
D+3.3V
RTS1
26
3
4
1
2
IC731
TABLE SENSOR
LM-F 38
LM-R 39
36
TM-R
E-1
E-2
E-3
37
35
34
28
TM-F
RIN
FIN
9
7
MOTOR
DRIVE 4
2
9
7
4
2MOTOR
DRIVE
OUT1
OUT2
OUT1
OUT2
RIN
FIN
IC712
TBL MOTOR DRIVER
S711
ROTARY
ENCODER
IC701
LD MOTOR DRIVER
M751
(TABLE LOADING)
M
M M741
(TABLE)
EVER 4V
M+9V
Q523,524
+3.3V
REG.
IC800
VIDEO SELECT
7
3
1
2
VIDEO
INPUT
VIDEO
J1102(1/2)
RF+3.3VSW+5V 5 4
IC107
+3.3V
REG.
+3.3V
VDD
5 4
IC105
+3.3V
REG. SW+3.3V
RF1.8V
DVDD18
1 3
IC106
+1.8V
REG.
D505
49
CN402
(2/3)
(FOR CHECK)

29. HCD-GN1200D
HCD-GN1200D
2929
7-3. BLOCK DIAGRAM – TAPE/TUNER Section –
ST-L
E
MAIN
SECTION
REC-OUT-L
D
MAIN
SECTION
TAPE
MECHANISM
BLOCK
32
A TRIG
DRIVE
R-CH
TU901
FM/AM TUNER UNITCN509
ANTENNA
ST-L
FM ANT
AM ANT
AM ANT
ST-R
TUNED
ST-DIN/MC-DOUT
ST-DOUT
ST-CLK
ST-CE
FM 75
COAXIAL
CAP M+
BTRGM+
ATRGM+
AHALF
BHALF
B PULSE
A PULSE
REC(FWD)
REC(REV)
CAPM-CONT
B-TRIG
A-TRIG
TC-RELAY
A-HALF
B-HALF
B-SHUT
A-SHUT
REC BIAS
PB-A/B
ALC
REC-MUTE
TC-MUTE
AM
EQ OUT1A
B
TUNED
ST-DOUT
MC-DIN (ST)
ST-CLK
ST-CE
34
28 27 26
2421
52
55
56
54
71
90
89
91
47
53
48
B TRIG
DRIVE
49
CAP MOTOR
DRIVE
50
1
3
6
2
5
13 11 15 14
PB OUT1TAI1
REC IN1
AIN1
BIN1
A/B
ALCON/OFF
RECMUTEON/OFF
MUTEON/OFF
DECK A/B SELECT
PB/REC EQUALIZER AMP
IC301
Q340, 343
Q342, 345
Q341,344
SYSTEM CONTROL
(DVD/TAPE MECHANISM CONTROL)
IC401(3/6)
REC-OUT1
EQ
TC-PB-L
TEST
CONNECTOR
CN510
R-CH
R-CH
R
L
C
MAIN
SECTION
MUTE
Q106
MUTE DRIVE
Q509, 510
PB
HEAD
DECK-A
DECK-B
BIAS OSC
Q370
BIAS
TRAP
SWITCH
DRIVE
Q377, 379
SWITCH
DRIVE
Q382, 383
R-CH
R-CH
Q325, Q375
Q321, 322
Q381
L – CH
R – CH
R-CH
BIAS+9V
REC/PB
HEAD
ERASE
HEAD Q378,380
T301
L – CH
R – CH
• R-CH is omitted due to same as L-CH.
: TAPE PLAY (DECK B)
: TAPE PLAY (DECK A)
: TUNER
: RECORD (DECK B)
• Signal Path
(Page 30)
(Page 30)
(Page 30)

30. HCD-GN1200D
HCD-GN1200D
3030
7-4. BLOCK DIAGRAM – MAIN Section –
J201
J1102(2/2)
C
D
E
R-CH
VOLUME
CONTROL
CPU
INTERFACEINPUT
SELECT
SWITCH
SURROUND OR
DPL BUFFER
MID/
BASS &
TREBLE
R-CH
R-CH
COMMAND
TOUT1
LINK-L
OUT1
VOLIN1
+
Q101
R-CH
R-CH
SPEANA
D +4V
L+R
(SPEANA)
A +9V
LIN
RIN
DBFB F/B
F-R
F-L
CENTER
SL
SR
SW OUT
+
+
+
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC101
SYSTEM CONTROL
IC401(4/6)
TC-L
VIDEO-L
ST-L
SAOUT
DATA
CLK
BB-A1
BB-B1
SWOUT
REC-OUT-L
R-CH
TC-PB-LTAPE/TUNER
SECTION
TAPE/TUNER
SECTION
ST-L
VOLICDATA
VOLICCLK
LINEMUTE
AUDIOICDATA
AUDIOICCLK
R-CH
LINE-MUTE
L
R
VIDEO
INPUT
AUDIO
L
R
TV/SAT
AUDIO
IN
2
14 15
24
18
22 1621
4
3
6
DVD1
SAT-L
5
19 17
8
MIC
RECB1
7
SUR-L
C
A
B
C
A
B
A+9V
81 82
DVDAMUTE
MICDETECT
77 85 79 80
ANALOGINMUTE
46
AUDIO-OUT-MUTE
8376
AMP
SECTION
H
I
F
AMP
SECTION
RF
SECTION
TAPE/TUNER
SECTION
G
DISPLAY/POWER
SECTION
RF
SECTION
MUTE
Q514, 564
MUTE
Q117
MUTE DRIVE
Q516, 517
MUTE
Q206
4V REG.
Q323
MUTE DRIVE
Q521, 522
MUTE DRIVE
Q505,506
MUTE
Q200,202-204,
250,252-254
MUTE DRIVE
Q507,508
R-CH
R-CH
J202
AUDIO OUT
L
R
J103
D-LIGHT
SYNC
OUT
R-CH
6 7
42 SPEANA IN
AMP
IC304 (2/2)
SURROUND
VOL CONTROL
IC201
DM_L
DM_R
MB_FL
MB_FR
FC
MB_SL
MB_SR
SW (LFE)
DATA CLOCK
R-CH
R-CH
R-CH
R-CH
LPF
I/F
41
40
37
39
38
RF
SECTION A
34
2 32
13 12
6 5
10 9
15 24
14
+
11
4
31
25
30
29
8
7
23
28
27
26
22
3
17 18
MB_FL
MB_FR
FC
MB_SL
MB_SR
SW (LFE)
+ 2 1
MUSIC L+R
AMP
IC304 (1/2)
3 1
5 7
MIC/MUSIC AMP
IC2000
3 1
6 7
COMPARATOR
IC2002
3
2
6
1
5
7
COMPARATOR
IC2001
D2004
-2008
SCORE
XVOICE
SELECTOR CCT
IC1506
DM-L
EFFECTORSELECT
18
EFFECTOR-CTR1
EFFECTOR-CTR3
57 70
Y COM3Y
0Y
34
1
X COM
3X
OX
B A
13
11
12
9 10
EFFECTORS1
43
EFFECTORS2
44
EFFECTORS0
19
A
MIXER L/R
IC1505
7
13
5
3
MIXER
IC1500
13
DM-R
DIGITAL DELAY
IC1501
MULTIPLEXER
IC1503
9
12
11
10
2
3
Q1508
Q1506
Q1500
LPF2OUTLPF1IN
LPF1OUT
LPF2IN
OP2OUT
OP2IN
CLOCK
A B
COM
C
Q1502
++
14
3
10 911
BUFFER
Q1509
BUFFER
Q1513
RV1501
DIGITAL ECHO
IC1101
J1150(1/3)
J1150(2/3)
MIC 1 ECHO
LEVEL
RV1150
MIC 2
LEVEL
RV1100
MIC 1
LEVEL
MIC OUT
MIC AMP
IC1100
J1100(1/3)
J1100(2/3)
J1150(3/3)
J1100(3/3)
MIC 2 3
5
1
7
MIC AMP
IC1102
3
5
1
7
MIC IN
MIC VOL IN
MIC OUTSCL/ECHO VOL5
8
28
16
B
: AUDIO
: DVD PLAY
: TAPE PLAY
: REC (DECK B)
: MIC
: TUNER
• Signal Path
• R-CH is omitted due to same as L-CH.
(Page 27)
(Page 29)
(Page 29)
(Page 27)
(Page 29)
(Page 27)
(Page 32)
(Page 31)
(Page 31)

31. HCD-GN1200D
HCD-GN1200D
3131
7-5. BLOCK DIAGRAM – AMP Section –
HMAIN
SECTION
MAIN
SECTION I
DISPLAY/POWER
SECTION
K
MUTING
Q604, 606, 610
F-R
DBFB F/B
F-L
SW OUT
60 67
STK-MUTE
PROTECTOR
STKMUTE
14
13
11
4
3
12
STK MUTE
FAN DET
FAN CONTROL
HI SPEED
OVER LOAD
DETECT
Q668, 618
+ +
+
+
MUTING
Q640, 641
MUTING
CONTROL
Q634,682
F-RELAY
HP-DET
HP-MUTE
HP-DETECT
72
HP-MUTE
58
FANHISPEED
66 84
FRONT-RELAY
42
FAN-CONTROL
OVER LOAD
DETECT
Q730, 770. 780, 800, 850
RELAY DRIVE
Q644, 647
H/PDET
F-RELAY
HP-MUTE
+
-
-
+
FRONT SPEAKER
SUB WOOFER
OUT
L
R
PHONES
J1103
RY646
SYSTEM CONTROLLER
IC401 (5/6)
TM600
M
FAN MOTOR
DRIVE
Q579, 585
DC FAN
M891
M
FAN MOTOR
DRIVE
Q587 - 589
DC FAN
M892
VL(AC)
TH629
THERMAL
DETECT
Q628, 630
SW MUTE
Q812
MUTE
Q810
+
51
SW-SPKRELAY
RY862
TM101
RELAY DRIVE
Q814, 815
6
4
OVER
LOAD
DC DET
VP
OCP
CT
OUT
D624
D812
D550
2
1
Q648
18 11
10
9
14 8
-
HI SPEED
SWITCH
Q581, 582
7
5
POWER AMP
IC600
OVER CURRENT
PROTECTOR
IC550
POWER AMP
IC800
FAN CONTROL
SWITCH
Q578
SR
CENTER
SL
14
19
18
+ REAR
SPEAKER
CENTER
SPEAKER
+
+
+
65
CENTER-RELAY
61
SURR-RELAY
RY760
RY761
L
R
LINEMUTE RELAY DRIVE
Q762
RELAY DRIVE
Q763
8
21
11
MUTE
Q750
MUTE
Q700
MUTE
Q740
-
-
-
TM701
TM700
10
9
22
D780
D765
POWER AMP
IC801
: AUDIO
• SIGNAL PATH
(Page 30)
(Page 30)
(Page 32)

32. HCD-GN1200D
HCD-GN1200D
3232
7-6. BLOCK DIAGRAM – DISPLAY/POWER Section –
NO.402
(FOR CHECK)
CN402
(3/3)
(FOR CHECK)
78MTK-POWER
68OVER VOLTAGE DET
REG. SWITCH
Q518, 503
REG. SWITCH
Q104
+5V REG.
Q103
RECT
D560
M +9V
SW +9V
+9V REG
LED +9V
A +9V
ST +9V
MB +9V
+9V REG
+9V REG
VOLTAGE
CHECK
Q504, 550
AU +5V
V +5V
AC3
AC4
AC4
AC3F1281
AUDIO +9V
BIAS +9V
RECT
D561
+SW3.3V
+3.3V REG +B SWITCH
Q513,520
AU+5V
+SW5V
(ZIVA)
+5V REG
F1291
UNREG
S1200
S1200
230 – 240V
|
220V
|
120V
VOLTAGE
SELECTOR
IC558
IC559
IC561
IC560
IC507
MAIN
SECTION G
AMP
SECTION K
ND900
FLUORESCENT
INDICATOR TUBE
9,10,12–22,
24–41,43–47
1–6,87-100
P1–36G2–21
64–66
7,8,86
BF4
1
SPECTRUM
ANALYZER
IC902
67
6816
2
15 69
71
48
80
ALL BAND
BF3
BF1
IN2
IN1
VKK
LED SELECTOR
G1,22,23
G1,22,23
G2-21
13
17
74 VOLUMEROTARY
ENCODER
S935
MASTER
VOLUME
SPEANA
P1 – 36
VF1
VF2
D900
-VG
(-32V)
X900
4MHz
83 XIN
82 XOUT
52–59,
75,76,78,79
LED DRIVE
Q906-916, 921
D906, 908, 910, 913, 915, 917,
919, 921, 929, 923, 925, 927
D905, 907, 909, 912, 914,
916, 918, 922, 924, 926
LED+9V
Q903
Q902
Q901
Q900
D904
(R)
D930
(G)
KEY2
|
KEY0
S900 – 905, 907 - 914,
916 - 928, 934, 937
60I2C DATA
61I2C CLK
77RESET
30 IIC-DATA
29 IIC-CLK
IIC-DATA
IIC-CLK
40 GC-RESET
74 POWER-KEY
73 DISPLAY-KEY
S934
S900
DISPLAY
41 STBY-LED
4 SIRCS
RESET
X402
5MHz
15 X-IN
13 X-OUT
X401
32.768kHz
10 XC-IN
11 XC-OUT
SYSTEM CONTROL
IC401 (6/6)
7STBY-RELAY
12RESET
20AC-CUT
B+ SWITCH
Q523, 524
D672
D505
D501
POWER
SWITCHING
LED DRIVE
Q904,905
RECT
D658
RECT
D656
+VL
VL(AC)
F1261 VL
VL
VH
VH
VP
VF
VF
GNDF1271
F1241
F1251
R1292
–VL
+VH
–VH
– 33V
REGULATOR
Q1264
POWER ON/OFF
RELAY DRIVE
Q1200
– VG
(-32V) D1292
RECT
VF1
VF2
RY1200
AC IN
T1200
POWER
TRANSFORMER
RESET
SWITCH
Q501
REMOTE CONTROL
RECEIVER
IC901
TO FLUORESCENT
INDICATOR TUBE
FL901
EVER +4V
M+9V
D3.3V
DISPLAY CONTROL,
KEY CONTROL
IC900
BUFFER
Q917, 918, 919
70 BF214 R480
72 OPERATION DIALROTARY
ENCODER
S936
OPERATION
DIAL
1 2
LEVEL
DETECT
IC501
(Page 30)
(Page 31)

33. HCD-GN1200D
HCD-GN1200D
3333
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 V or less are not indicated except for electrolytics and
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specified.
• % : indicates torelance.
• f : internal component.
• 2: nonflammable resistor.
• 5: fusible resistor.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
DMB16 and VIDEO boards
no mark : DVD PLAY
Other board
no mark : TUNER (FM/AM)
( ) : DVD PLAY
< > : TAPE PLAY
[ ] : TAPE REC
* : Impossible to measure
• Voltages are taken with VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F : AUDIO
e : TUNER
k : TAPE PLAY (DECK A)
d : TAPE PLAY (DECK B)
G : REC (DECK B)
J : CD PLAY
N : MIC
c : DVD PLAY
L : VIDEO
E : Y
a : CHROMA
r : COMPONENT VIDEO
q : R, G, B
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
• Abbreviation
E15 : Iran model
EA : Saudi Arabia model
MY : Malaysia model
PH : Philippines model
SP : Singapore model
Caution:
Pattern face side:
(SIDE A)
Parts face side:
(SIDE B)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Note: The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
C
B
These are omitted.
E
Q
C EB
These are omitted.
These are omitted.
C BE

34. HCD-GN1200D
HCD-GN1200D
3434
• Waveforms
– DMB16 Board – – PANEL Board –
IC301 BICK
IC301 MCLK
IC102 DVDRFIP
IC102 FED
IC102 TEO
IC102 XTALO228
3.3 Vp-p
4.0 Vp-p
41 nsec
0.33 msec
2V/DIV, 0.1 sec/DIV
2V/DIV, 20 nsec/DIV
0.6 Vp-p
0.2V/DIV, 500 nsec/DIV
40 nsec
0.1V/DIV, 0.5 msec/DIV
0.1 V/DIV, 0.5 msec/DIV
1.1 Vp-p
0.5V/DIV, 20 nsec/DIV
0.1 Vp-p
0.1 Vp-p
3.1 Vp-p
250nsec
1V/DIV, 0.2 sec/DIV
IC900 XO
1.7 Vp-p
3.3 Vp-p
0.5 V/DIV, 10 sec/DIV
1V/DIV, 50 nsec/DIV
11 msec
200 nsec
20V/DIV, 5 sec/DIV
60 Vp-p
32 msec
IC401 XC OUT
IC401 X-OUT
CN503 E-HOT
– MAIN Board –
– VIDEO Board –
1.0 Vp-p
H
0.5 V/DIV, 20 sec/DIV
1.3 Vp-p
H
0.5 V/DIV, 20 sec/DIV
1.6 Vp-p
H
0.5 V/DIV, 20 sec/DIV
1.6 Vp-p
H
0.5 V/DIV, 20 sec/DIV
0.8 Vp-p
H
0.5 V/DIV, 20 sec/DIV
2.0 Vp-p
H
1 V/DIV, 20 sec/DIV
2.6 Vp-p
H
1 V/DIV, 20 sec/DIV
1 V/DIV, 20 sec/DIV
0.8 Vp-p
H
0.5 V/DIV, 20 sec/DIV
1.5 Vp-p
H
1 V/DIV, 20 sec/DIV
1 V/DIV, 20 sec/DIV
2.0 Vp-p
H
1 V/DIV, 20 sec/DIV
1 V/DIV, 20 sec/DIV
2.0 Vp-p
H
1.5 Vp-p
H
2.6 Vp-p
H
IC801 CIN
IC801 CVBSIN
IC801 YIN
IC801 CVBSOUT
IC801 C OUT
IC800 VOUT
IC801 CYIN
IC801 CBIN
IC801 CRIN
IC801 CROUT
IC801 CBOUT
IC801 CYOUT
IC801 YOUT

35. HCD-GN1200D
HCD-GN1200D
3535
• Circuit Boards Location
PA board
TRANS board
PRIMARY board
KARAOKE board
VIDEO board
DMB16 board
CD-SW board
TUNER PACK
EFFECTOR board
SWITCHING POWER
SURROUND board
MOTOR (LD) board
SENSOR board
SW board
MOTOR (TB) board
DRIVER board
MAIN board
MIC board
JOG board
FUNCTION board
PANEL board

36. HCD-GN1200D
HCD-GN1200D
3636
2 3 4 5 6 7 8
A
1
B
C
D
E
F
G
D1G2S2
G1
D2S1
C1
E1
B1
B2
E2
C2
E
1
12
13
48
24
25
36
37
224
123
1
2
5
6
1
4 5
8
1
4 5
8
1
4 5
8
1
4 5
8
24
1
25
48
154
27
193256
1
64
65 128
129
192
1
5
1
2425
363748
1213
E
18
9 16
R3801
R3802
R3803
R3610
R3804
R3805
R3611
R212
R219
R1101
R3621
R223
R225
R1109R1129
C212
C214
R1524
R1526
FB1501
FB1502
C221
R1530
R1531
R1540
R1542
R1543
R1544
R1547
R1161
R1168
R1553
R1557
Q101
Q102
Q103
R5001
R1139
R1138
RB103
RB104
RB105RB106
RB107
RB108
RB111
RB112
R5016E15, EA MODEL
SP, MY, PH MODEL R5017
RB113
FL101
FL104
FL105
FL106
FL107
FL108
C3702
C3704
C3706
C3708
C3712
C3714
R101
R3504 FB3504
R3505
EXCEPT
EA MODEL
EA MODEL
EA MODEL
FB3505
C3721
C3722
R107
R108
C3724
R109
R116
C3732
R117
R118
C3734
D1001
CN101
R120
R314
R121
R3716
CN107
R3717
R3718
R3719
R319
C3741
R126 R3507
R3508
C3742
R127
C3744
R3721
R3722 R3723R3724 R3726
R3727
R3728
R3729
R136
C3752
C3754
C101
C102
C106
R142
R3736
R1561
R3737
C108
R3738
C109
R3739
C3761
R146
C3762
C3764
C301
C302
C305
R3741
R3742 R3743
C114
R3744
R151
R152
R3746
R153
R3747
R3748
R155
R3749
C3772
C3774
C124
R160
R161
R3756
R3757
R3758
R3759
C3781
C3782
C3784
C130
R3761
C132
R3762
C133
R3763
R3764
C135
R3766
C137
R3767
C138
R3768
R3769
R3776
R3777
R3778
R3779
R187
R3781
R3782
C153
R3783R3784 R3786
R3787
R3788
R3789
C170
C188
C189
C192
C193
C195
FL401
FL402
FL403
C3605
C3802
Q3801
FB401
FB403
FB405
R3607
R3608
IC201
IC3711
IC3731
IC3751
IC3771
IC101
IC102 IC104
IC105
IC106
IC107
IC301
IC3601
R3609
L3602
C3603
R3606
D3601
R3631
C3607
R3605
R3602
OPTICAL
PICK-UP
BLOCK
(KHM–313CAB)
DMB16 BOARD (SIDE A)
1-871-691-
21
(21)
C309
EXCEPT EA
MODEL
EXCEPT EA
MODEL
EA
MODLE
EA
MODLEEA MODLE
EXCEPT
EA MODEL
7-7. PRINTED WIRING BOARD – DMB16 Section (1/2) – • : Uses unleaded solder.• See page 35 for Circuit Boards Location.
D1001 E-6
D3601 C-7
IC101 F-4
IC102 D-4
IC104 E-5
IC105 F-6
IC106 E-6
IC107 C-3
IC201 F-3
IC301 B-5
IC3601 C-7
IC3711 B-6
IC3731 C-6
IC3751 B-4
IC3771 B-4
Q101 D-2
Q102 C-2
Q103 D-2
Q3801 C-6
Ref. No. Location
• Semiconductor
Location

37. HCD-GN1200D
HCD-GN1200D
3737
7-8. PRINTED WIRING BOARD – DMB16 Section (2/2) – • : Uses unleaded solder.• See page 35 for Circuit Boards Location.
Ref. No. Location
• Semiconductor
Location
D3501 B-2
D3602 B-2
IC103 F-5
2 3 4 5 6 7 8
A
1
B
C
D
E
F
G
1
2
5
4
CN202
C402
C403
C217
C218
C220
ET001
ET002 ET003
CN302
1
2
5
4
CN103
13
122
1 CN109
CN315
C105
X101
C112
C306
C307
C117
C118
C119
C129
C150
C177
C178
C187
FB402
C190
C3801
C3803
C3805
C3602
D3602
R3601
R3633
C3601
R3604
C3604
1
5
16
1 6
CN401
CN105
C3804
CN201
20
21
1
2
D3501
C131
IC103
C3606
FB404
FB406
C203
C205
C206C208
C209
C210
C211
C213
C215
C219
C222
C224
C233
C3701C3703
C3705C3707
C3711
C3713C3723
C3731
C3733C3743
C3751
C3753C3763
C113
C115
C116
C3771
C3773
C120
C121
C122
C123
C125
C126
C127
C128
C3783
C136
C139
C140
C144
C146
C147
C148
C149
C151
C152
C154
C155
C156
C158
C159
C160
C161
C162
C163
C164
C167
C111 C110
C171
C172
C173
C174
C175
C176
C179C180C181
C182
C184
C191
C196
R210
R213
R214
R215R216
R1102
R1103
R1104
R220
R1105
R221
R224
R226
R1110
R230
R231
R232
R233
R234
R1502
R1120
R1121
R1122
R1123
R1124
R1125
R1126
R246
R247
R1133
R1134
R3651
R3652
R3653
R3636
R3635
R3634
R1527
R1150
R1151
R1152
R1546
R1548
R1549
R1550
R1551
R1554
R1559
R2504
R104
R105
R1171
R106
R110
R111
R112
R113
R114
R115
R3711
R3712
R3713
R3506
R3714R3715
R123
R124
R321
R3725
C308
EA
MODEL
R138
R3731
R3732
R3733
R3734R3735
R141
R3745
R3751
R3752
R3753
R3754R3755
R164
R169
R4701
R4702
R4703
R4704
R3765
R4705
R4706
R3771
R3772
R3773
R3774R3775
R189
R190
R3785
R191
R192
R193
R195
R196
R197
R204
R205
R206
R207
R208
R209
R1504
FB111
FB112
FB113
FB114
FB115
DMB16 BOARD (SIDE B)
(FOR TEST) (FOR TEST)
(FOR TEST)
A
MAIN
BOARD
CN520
OPTICAL
PICK-UP
BLOCK
(KHM–313CAB)
C
MAIN
BOARD
CN521
D
MAIN
BOARD
NO523
B
VIDEO
BOARD
CN801
13
12
1
2
1-871-691-
21
(21)
EA
MODEL
EA
MODEL
1 4
58
(Page 44)
(Page 44) (Page 58)
(Page 44)

38. HCD-GN1200D
HCD-GN1200D
3838
7-9. SCHEMATIC DIAGRAM – DMB16 Section (1/4) – • See page 34 for waveforms. • See page 67 for IC Block Diagrams. • See page 71 for IC Pin Function Description of IC301.
20
C
(2/4),(3/4),(4/4)
BOARD
DMB16
(2/4)
BOARD
DMB16
(2/4)
BOARD
DMB16
(2/4)
BOARD
DMB16
(3/4)
BOARD
DMB16
(2/4),(3/4),(4/4)
BOARD
DMB16
BOARD
MAIN
(3/5)
CN521
(2/4)
BOARD
DMB16
15
4
13
2
19
3
IC B/D
D3501
ET002
EA
MC2387
SCORE
XVOICE
R3505
0
R3504
0
FB3504
EA MODEL
EXCEPT
EA
MODEL
EA MODEL
FB3505
R3507
100
R3508
100
C301
R3653
R3652
R3651
IC301
C302
R319
C3801
C3805 C3804
47
16V
C3803
100
10V
C3802
C306
C305
R3802
R3801
C3781
IC3771
C3783
C3784
C3708
C3707
C3773
C3774
C3772C3771
C3761
IC3751
C3764C3763
R3782 R3784 R3785
R3789
R3779
R3778
R3776
R3777
R3767 R3768
R3766
R3775
R3771 R3773
R3762 R3764
R3765
R3611
R3803
R3804
R3805
R314
R3761 R3763
C3762
R3774R3772
R3769
R3759
C3753
R3756R3755
C3705
C3754
R3758
R3752 R3754
R3751 R3753
C3752C3751
R3741 R3743
R3742 R3744
C3741 C3742
R3745 C3743 R3746
R3747
R3748C3744
IC3731
C3733R3735
C3703
R3736
C3734
R3738
R3737
R3732 R3734
R3731 R3733
C3732C3731
R3721
R3722 R3724
R3723
C3721 C3722
C3723R3725
R3728C3724
R3727
R3726
IC3711
R3719
R3718
C3714
R3717
R3716C3713R3715
C3701
R3712 R3714
C3712C3711
R3711 R3713
R3739
C3782R3781 R3783 R3788
C307
R3757
C3706
R3749
C3704
R3729
C3702
R3621
Q3801
R3786
R3787
0.01
0
0
0
AK4358VQ-L
0.47
100
10V
47
16V
10
100
10V
0.47
0
0EXCEPT EA MODEL
EA MODEL
FERRITE
BEAD
0 EXCEPT EA MODEL
EA MODELFERRITE BEAD
0.0018
NJM3414AV
330p
330p
0.1
0.1
330p
330p
0.00220.0018
0.0018
NJM3414AV
330p330p
1.5k 3.9k 4.7k
1k
1k
4.7k
1k
1k
1k 4.7k
1k
4.7k
1.5k 3.9k
1.5k 3.9k
4.7k
0
10k
18k
1k
100
C309
EA MODEL
0.1
1.5k 3.9k
0.0022
3.9k1.5k
1k
1k
330p
1k4.7k
0.1
330p
4.7k
1.5k 3.9k
1.5k 3.9k
0.00220.0018
1.5k 3.9k
1.5k 3.9k
0.0018 0.0022
4.7k 330p 1k
1k
4.7k330p
NJM3414AV
330p4.7k
0.1
1k
330p
4.7k
1k
1.5k 3.9k
1.5k 3.9k
0.00220.0018
1.5k
1.5k 3.9k
3.9k
0.0018 0.0022
330p4.7k
4.7k330p
1k
1k
NJM3414AV
1k
4.7k
330p
1k
1k
330p
4.7k
0.1
1.5k 3.9k
0.00220.0018
1.5k 3.9k
1k
0.00221.5k 3.9k 4.7k
100
10V
1k
0.1
1k
0.1
1k
0.1
0
2SC2712-YG
BIAS
1k
1k
XRST
ASDATA4
ALRCK
ASDATA2
ASDATA1
ASDATA0
SDA
SCL
SW+5V
ABCK
ACLK
GND
SPDATA
LOUT1+
LOUT1-
ART+
ART-
ALT-
ALT+
ROUT3-
ROUT3+
LOUT3-
LOUT3+
ROUT2-
ROUT2+
LOUT2-
LOUT2+
ROUT1-
ROUT1+
ART-
ART+
ALT+
ALT-
ROUT3-
ROUT3+
LOUT3+
LOUT3-
LOUT2+
LOUT2-
ROUT1-
ROUT1+
LOUT1+
LOUT1-
RT
LT
SW
FR
FL
SR
SL
RT
LT
SW
FC
SR
SL
FR
FL
FC
ROUT2-
ROUT2+
DM L/R AMP
C/SB AMP
SURR L/R AMP
FRONT L/R AMP
CN315
21PR3506
C308
0
0.1
RT
LT
(LFE)
1
2 XVOICE
SCORE
161514131211109
87654321
100
R3610
0R3607
0R3608
0R3609
0
R3631
IC3601
AK5358AET-E2
AINR
AINL
CSK1
VCOM
AGND
VA
VD
DGNDSDTO
LRCK
MCLK
SCLK
PDN
DIF
CSK2
CSK0
L3602
10uH
C3602
10
50V
C3601
0.1
C3603
0.1
C3605
0.1
35V
C3606
10
50V
C3604
47
C3607
0.01 0R3601
10k
R3602
10k
R3604
10k
R3605
100R3606
D3601
MC2837
100
R3633
0R3634
0R3635
0
R3636
D3602
UDZW-TE17-3.3B
1.2
1.6
1.6
3.2
3.3
2.4
2.4
2.4
4.9
3.2
0
0
0
1.6
(Page 39)
(Page 40)
(Page 41)
(Page 39)
(Page 39)
(Page 40)
(Page 41)
(Page 39)
(Page 40)
(Page 39)
(Page 47)
(Page 39)

39. HCD-GN1200D
HCD-GN1200D
3939
7-10. SCHEMATIC DIAGRAM – DMB16 Section (2/4) – • See page 34 for waveforms. • See page 72 for IC Pin Function Description of IC102.
DMB16
BOARD
(3/4)
DMB16
BOARD
(3/4)
DMB16
BOARD
(4/4)
DMB16
BOARD
(4/4)
DMB16
BOARD
VIDEO
BOARD
CN801
(1/4),(3/4),(4/4)
DMB16
BOARD
DMB16
BOARD
DMB16 BOARD
(1/4),(3/4),(4/4)
(4/4)
DMB16
BOARD
(4/4)
DMB16
BOARD
(1/4)
DMB16
BOARD
(1/4)
DMB16
BOARD
(3/4)
DMB16
BOARD
(3/4)
DMB16 BOARD (1/4)
DMB16
BOARD
(4/4)
DMB16
BOARD
(4/4)
DMB16
BOARD
(4/4)
DMB16
BOARD
(4/4)
DMB16
BOARD
(3/4)
(1/4)
BOARD
DMB16
(3/4),(4/4)
14
13
21
5
2
10 43 2018
B
15
12
11
17
16
1
7
6
8
9
ASDATA4
XRST
KRMOD
MIC
SCORE
XVOICE
DMB16 BOARD
R109
R123
R126
R152
R196
R1530
R1531
C105
C112
C119
C129
C150
C177
IC102
R1542
R1553
R1120
R1121
R1122
R1123
R1124
R1125
FL101
FL105
FL106
R1527
R4701
R4702
R4703
R4704
R4705
R4706
CN302
C147 C148
R141
C151
R142
C154
C138
C133
R136
C132C130
C137
C135
R1168
X101
C159
R189
R190
R192
R195
R197
R1102
R160
R153
R151
C156
R1547
R1549
R1551
R1550
R155
R1548
C149
C152
C153
C139
C140
C146
R138
C127
C128
R1126
R1554
SPFG
DSEL
WIDE
MSW
C196
C126
C125
C120
C121
C122
C123
C124
C193 C195C192 IC107
C114
C117
C118
C163
C161
C101
Q101
Q103
R124R113R112
C113
C106
Q102
R117
R116
R121
R120
R111R108
R118
R115
R110
R1129R114
R101
R107
C131
C136 C144 C155
C162C164
RB113RB112
R1557
R161
R164
C160
C158
R1101
R1103
C170
R1104
C171
C172
R1109
C173
C174
C175
C176
RB108
RB107
RB103
RB104
RB111
R1540
C116
C115
CN101
R1504
0
0
0
0
0
47
47
47
16V
47
16V
10
50V
10
50V
1050V
47
16V
CXD9849R
0.047 0.047
750k
0.001
100k
470P
0.001
0.1
15k
0.10.1
0.1
0.033
330
27MHz
0.01
47
47
47
0.01
4.7k
R146
47
4.7k
4.7k
4.7k
47
4.7k
0.1
10p
15p
22p
0.1
0.1
100k
0.01
0.0015
10k
4.7k
NC
NC
R127 100
0.0047
0.1
0.1
1
1
1
1
1
0.22 0.22
0.01 TK11133CSCL-G
0.1
10 50V
10 50V
0.01
0.01
0.01
UM6K1N-TN
DTC124EKA-T146
47k2222
0.01
0.01
QST8TR
47k
1k
22
22
1001M
22
22
47k
100k100k
100
10k
2.2
0.01 0.01 0.01
0.010.01
22x422x4
100
100
100
0.01
0.01
10k
R1105
10k
0.01
R1161
0
R321ET003
0
10k
0.01
0.01
0
0.01
0.01
0.01
0.01
100x4
47x4
47x4
47x4
47x4
4.7kR1561
0
0.1
0.1
24P
10k
0
0
0
0
0
0
0
0 0
0
0
0
0
0
13P
150
150
150
150
150
150
2.2k
R1559
10k
R1543
10k
0.5%
0.5%
0.5%
0.5%
0.5%
0.5%
NC
NC
NC
NC
NC
NC
NC
NC
REW
NC
NC
NC
NC
NC
TSD M
FWD
NC
NC
NC
NC
NC
MUTE123
MUTE
0.5% 0.5% 0.5%
3.3 4.9
3.31.3
3.3
3.2 3.2
2.62.6
2.3
2.3
0.7
0.1
0
0.1 0.1
0
2.1
2.1
2.1
2.1
0.1
0.1
2.6
1.4
1.3 0 1.4 0.2 1.8
1.8
0.8
1
1.3
0.9
3.3
1.2
1.6
1.3
1.5
1.2
1.2
3.3
2.5
1.4
3.3
1.8
1.2
3.3
0
0
1.3
0
0
0
0
0
3.3
1.8
0.6
0.7
0.7
1.2
0.1
3.3
0
0
1.6
0
3.3
0
0
0
3.3
0
0
0
0
1.2
3.3
3.3
3.3
0
1.6
1.6
1.3
1.2
0.6
3.2
3.3
1.3
0
3.3
0.7
0
3.3
0.4
1.4
1.5
1.5
1.6
3.3
3.3
NC
NC
NC
NC
NC
NC
NC
NC
1.8
3.3
1.6
0
0.7
1.9
2
1.6
1.8
3.3
1.6
1.9
0
0
0
3.3
3.3
2.6
2.7
3.3
3.3
3.2
1.7
3.3
1 1.3
1.8
3.1
2.7
3.1
1.4
1.5
2.4
1.7
0.9
1
1.2
1.5
0
0
1.2
3.3
3.3
0.6
1
0.5
2.7
1.3 1.3
3.1
2.1
2
3.3
2.5
2
0
0 1.8
0
3.3
3.3
2.1
0
3.3
3.3
0
3.3
1.4
3.3
3.3
3.3
1.8
2
2
2
2
1.7
1.6
2.1
2.3
1.5
2.2
2.8
1.7
1.7
1.7
1.7
1.7
0.2
1.4
2.1
1.3
1.4
(Page 41)
(Page 38)(Page 40) (Page 41)
(Page 40) (Page 41)
(Page 41)
(Page 41)
(Page 40)
(Page 41)
(Page 41)
(Page 41)
(Page 40)
(Page 38)
(Page 38)
(Page 38) (Page 40) (Page 38)
(Page 59)
(Page 38)
(Page 41)
(Page 41)
(Page 40)
(Page 41)
(Page 40)
(Page 40)

40. HCD-GN1200D
HCD-GN1200D
4040
16
DMB16
BOARD
(2/4) 17
DMB16
BOARD
(2/4)
13
21
DMB16
BOARD
(1/4),(2/4),(4/4)
(1/4),(2/4),(4/4)
DMB16
BOARD
(2/4),(4/4)
10
DMB16
BOARD
(2/4)
7
DMB16
BOARD
(2/4)
15
DMB16
BOARD
18
A
DMB16
BOARD
(2/4)
MAIN
BOARD
CN520
(1/5)
19
DMB16
BOARD
(1/4)
MIC
DGND
NC
M-REQ
KRMOD
FOR TEST
MIC
SDA
SCL
KRMOD
DMB16 BOARD
EXCEPT EA
MODEL
EA MODEL
EA MODEL
R187
R1133
R1134
CN105
IC104
FL104
FL107
FL108
C190
C187
C178
R104
FB115
FB114
FB113
FB112
FB111
RB106
RB105
C180
C179
C181
C191
R169
C184
C182 C188
IC106
D1001
C189
R191R193
C167
IC103
R1150
R1546
R1151
R1152
C108
C109
R1110
C102
R106
R105
IC105
CN109
IC101
R1544
R1502 0
0
0
0
R1139
1k
R1138 470
6P
A2V64S40CTP-G75
47 16V
47
16V
47
16V
0
FB1502 FB1501
22x4
22x4
0.1
0.1
0.001
0.001
10k
0.01
0.22 0.22
NJM2387ADL3
RB501V-40TE-17
0.33
1k1k
0.01
S-24CS64A01-J8T1G
3.3k
3.3k
3.3k
3.3k
0.001
0.001
C110
100p
C111
100p
2.7k
1
10k
10k
TK11133CSCL-G
13P
MX29LV320CBTC70-CBA3-0701CE
MX29LV320CBTC70-CBA3-0701GA
0
R1171
100
R1526
100
R1524
100
0
1.8
2
1.6
2.9
0.6
0.5
0.9
0
2
1.3
1.2
1.6
1.2
3.3
1
0.9
1.6
0
0
0
0
2.8
3.3
1.6
2.4
2.5
0.6
0
1.6
1.3
2.5
3.1
2.7
0
0
3.3
1.8
0.9
1
3.3
1
1.5
1.3
1.5
3.3
1.2
3.3
4.9
0
3.3
3.3
3.3
3.3
0
0
1.3
2.3
2.1
1.6
1.6
0
1.7
1.4
0
0
0
1.9
1.6
1.2
0.9
3.3
0
0
0.9
1.4
3.3
0.9
1.3
1.5
1.7
2
2
(E15,EA MODEL)
(MY,PH,SP MODEL)
7-11. SCHEMATIC DIAGRAM – DMB16 Section (3/4) –
(Page 39) (Page 39)
(Page 45)
(Page 39)
(Page 38)
(Page 39)(Page 41)
(Page 39)(Page 38) (Page 41)
(Page 39)
(Page 39)
(Page 38)
(Page 39)
(Page 41)

41. HCD-GN1200D
HCD-GN1200D
4141
7-12. SCHEMATIC DIAGRAM – DMB16 Section (4/4) –
DMB16
BOARD
(2/4)
DMB16
BOARD
(2/4)
DMB16
BOARD
(1/4),(2/4),(3/4)
(1/4),(2/4),(3/4)
DMB16
BOARD
(2/4),(3/4)
DMB16
BOARD
DMB16 BOARD
DMB16
BOARD
(2/4)
DMB16
BOARD
(2/4)
DMB16 BOARD (2/4)
DMB16 BOARD (2/4)
DMB16 BOARD (2/4)
DMB16
BOARD
(2/4)
MAIN
BOARD
NO523
(5/5)
8
9
12
5
6
D
1
11
21
13
15
14
JL205
C217
C218 C220
CN201
R247
R246
R204
R207 C203
R205
R210 C208 R216
R213
R206
R209 C206 R215
R212
R208
C205 R214
R220
C233 C209
R221
R223 R225
C211
R226
C214
C212
R230
R231
R232
R234
C215R233
C219
C224
C221
C222
R219
R224
C210
R2504
C213
IC201
47
16V
10
50V
10
50V
6P
1k
4.7k
1.2k
2.7k 0.01
10k
47k 0.01 12k
6.8k
10k
33k 220p 12k
10k
33k
220p 15k
10k
0.0047 0.033
56k
100k 100k
0.5%
0.5%
0.5%
0.5%
0.5%
0.5%
0.5%
0.5% 0.033
56k
0.001
0.01
82k
15k
18k
10k
0.0133k
0.01
0.01
0.1
0.1
27k
10k
0.01
0.01
FAN8036L
4.7k
C402 C403
FL402
FB401
FB402 FL401
FB403
FB404
FB405
FB406
FL403
CN401
47
16V
47
16V
ET001
5P
4.3
1.4
2.1
2.1
0.3
4.9
1.4
2.9
2.9
1.7
9
9
4.3
1.4
1.1
0
3.3
3.3
3.3
3
9
4.3
4.3
4.8
3.5
1.4
1.4
1.4
1.4
3.3
3.3
2.2
1.4
1.4
1.4
1.4
4.4
4.2
3.3
5.3
(Page 39)
(Page 39)
(Page 39)
(Page 39)
(Page 39)
(Page 39)
(Page 49)
(Page 39)
(Page 39)
(Page 39)
(Page 40)
(Page 38)
(Page 39)
(Page 40)
(Page 38)
(Page 39)
(Page 40)

42. HCD-GN1200D
HCD-GN1200D
4242
7-13. PRINTED WIRING BOARD – CD MECHANISM Section – • : Uses unleaded solder.• See page 35 for Circuit Boards Location.
2 3 4 5 6 7
A
1
B
C
D
E
E
M741
(TABLE)
M751
(TABLE LOADING)
1 3
CN721
IC731
CN731
CN741
CN742
C715
C731
C735
C736
R701
R711
R731
R721
R722
R723
R732
R733
R734
D701
D711
Q731
C751
IC712
IC701
CN704
C737
R713
R712
C741
R702
JW702
JW703
JW704
JW705
JW706
JW707
JW708
JW711
CN703
S711
ROTARY
ENCODER
CN702
CN751
CN705
R751
C752
JW712
JW701
JW709
JW713
JW714
S751
(OPEN)
CN701
JW710
R736
MOTOR(LD) BOARD
12
(12)1-687-133-
MOTOR(TB) BOARD
12
(12)1-687-134-
SW BOARD
12
(12)1-687-669-
SENSOR BOARD
12
(12)1-687-132-
DRIVER BOARD
12
(12)1-866-201-
M
M
14
1
2
1
2
E
1
1
9
9
1 2
12
MAIN BOARD
CN511
(Page 44)
Ref. No. Location
• Semiconductor
Location
D701 C-5
D711 C-5
IC701 C-5
IC712 B-5
IC731 B-2
Q731 B-4

43. HCD-GN1200D
HCD-GN1200D
4343
7-14. SCHEMATIC DIAGRAM – CD MECHANISM Section – • See page 67 for IC Block Diagrams
(1/5)
CN511
BOARD
MAIN
E
IC B/D
IC B/D
CN721
CN711
E1
E2
E3
CN742
CN741CN731
C751
CN704
CN703
IC731
IC701
R702
R701
IC712
R713
R712
R711
C741
C715 CN701
C731 R751
R731
R732
R733
R734
R736
CN702
CN705
CN751
R723 R722 R721
C736C737 C735
D711
D701
C752
M741
M751
Q731
S751
2P
4P
5P
3P3P
0.01
2P
4P
RPI-576N1
BA6956AN
100
470
BA6956AN
22k
4.7k
1k
0.01
100
16V
13P
10
50V
4.7k
100
10k
1k
12k
390
5P
2P
2P
4.7k 4.7k 4.7k
0.10.1 0.1
MTZJ-T-72-3.6B
MTZJ-T-72-5.1A
0.1
(TABLE)
(TABLE LOADING)
DTC114ESA
INVERTER
(OPEN)
(Page 45)

44. HCD-GN1200D
HCD-GN1200D
4444
2 3 4 5 6 7 8 9 10 11 12 13 14
A
1
B
C
D
E
F
G
H
J
I
K
1
3031
50
80 81
11 1
210
E
E
E
E
E
E E
E
E
E
E
E
E
E
E
E
E
E E
E
E
E
E
E
E
1
3
E E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
EE
E
14
5
1
10
8
1
11
2021
30
31
40
8
51
100
E
E
1
E
2 12
13
E
E
E
E
E
E
E
E
E
E E
E E
E
121
4222
1
2 12
1 6
13 1
2
1
1 13
2
8
9
202
211
16
17
M891
DC FAN
H
PA
BOARD
CN601
D
DMB16
BOARD
CN401
G
PA
BOARD
CN600
N
TRANS
BOARD
CN1213
I
PANEL
BOARD
CN906
A E
DRIVER
BOARD
CN701
DMB16
BOARD
CN109
W
KARAOKE
BOARD
NO2000
K
SURROUND
BOARD
CN700
M
VIDEO
BOARD
CN800
F
MIC
BOARD
NO902
V
EFFECTOR
BOARD
CN1502
C
DMB16
BOARD
CN315
J
SURROUND
BOARD
CN701
O
SURROUND
BOARD
NO801
L
PRIMARY
BOARD
CN1200
C530
C235
D551
JR218
Q550
Q579
R551
R549
R520
JR509
JR502
R538
JR514
D325
C464
JR400
Q504
R300
R429
R430
R431
JR430
C360
JR500
JR505
C513
C515
C551
C564
C565
C568C569
3 1 3 1
E
1
5
C580
C581
R432
R433
R434
R435
D550
13
64
FB204
FB254
JR506
JR504
R441
JR503
JR501
R444R447
R451
Q206
Q256
Q514
Q564
R525
R527
R528
R575
R576
R577
Q503
Q505
Q506
Q507
Q508
Q513
Q516
Q517
Q518
Q521
Q522
Q578
Q581
Q582
R467R468
R378
C382
R337
Q321
R368
Q375
JR305
C335
R380
C364
R318
JR301
Q370
JR302
R392
R338
R238
R239
Q372
R243
R244
R245
R246
R247
Q382
JR359
R370 R394
C377
C376
JR304
R288
R289
R293
R294R295
R296
R297
R578
JR507
R316
D101
IC550
R348
R350
R369
R359
R360
R365
R554R553
R552
R539
R537
R381
R382
R524
R523
JR508
R574
R573
R506
R507
R508
R509
R510
R511
R513
Q373
Q325
R336
R373
R388
R385
C332
R375
R325
R371
R395
R396
Q380R386
R390
R372
Q378
C385
R399
C372
JR300
R376
C371
R364
R379
Q377
JR303
R377
C383
R114
Q254
Q253
Q252
Q250
Q204
Q203
Q202
Q200
D136
R207
R213
JR200
R586
R591
C279
C270
C260
C229
JR204
FB261
JR205
R292
R273
FB260
R582
R581
JR202
R291
R290
R230
R231
R232
R233
R234
R235
R282
R240
R241
R281
R280
R279R278
R277
R271
R270
R269
R268
R267
R266
R384
Q104
R135
Q103
D102
JR543
R481
R482
R329
JR542
R330
JR531
JR431
JR432
JR541
JR433
JR532
Q323
JR201
D580
R547
R437
R439
R436
R438
R440
R540
R443
R555
R530
R556
R529
R542
R544
R548
R460
R465
R474
R473
R568
R541
R466
R303
R352
R305
R353R308
R307
R310
R311
R312
R313
R314
R315
R317
R319
R354
R324R355
R326
R362
C344
R328
R363
C327
C334
R333
R332
R331
R223
R212
R214
R225
C217
R208
C236
C220
R220
C241
C222
R221
R216
R215
R228
R242
R249
C251
C243
R252
R251
C271
R275
R253
R276
R255
C255
R261
R259
C281
R256
R257
R264
R258
R260
C259
C263
R263
C272
R272
R254
R274
R262
R301
R299
R284
R298
R285
R457
R334
JR361
R422
R421
R283
R218
R224
R226
R211
R209
R227
R229
R217
R323
R461
JR306
R302
JR510
JR104
C410
C411
C412 D502
R494
R410
R411
R413
R417
R420
R419
D340
D342
D503
D505
Q340
Q342
Q341
Q343
Q345
Q344
Q501
R469
R590
R589
Q587
Q589
R418
R340
R342
R345
R343
R344
R341 R349
R346
R347
R356
R357
R358
R361
R366
R401
JR544
JR100
R593
E15, EA
MODEL
R502
R493
R490
R489
R472
R470
JR435
D584
R121
R130
R131
R132
R133
R155
R156
R166
Q151
Q101
JR407
R383
Q523
Q524
C584
R570
C583
JR545
JR340
JR406
JR222
JR310
C415
R321
R320
JR105
R566
R545
R403
R405R505
R404
R407
R428
R427
R426
R526
R425
R423
R424
R512
R567
R173
R546
R585
R522
R167
R111
R116
C120
R123
R124
R152
R180
R162
R165
R491
R102
R471
D501
R584
JR517
JR584
JR585
JR583
D597
R558
JR597
R594
R595
R402
R485
R484
JR401
D401
R503
R406R500
R495
R487
R488
R501
JR518
1
3
JR403
JR405
R497
JR409
R557
JR404
R559
R560
R104
R112
R113
R115
R117
R163
R164
Q167
Q117
R532
R531
JR102
R204
R203
R265
R286
R287
R170
R172
R160
R107
R304
21
22
1
42
R158
R159
JR101
R110
R108
JR208
R151
R150
JR513
Q381Q379
Q383
C373R374
R387
Q322
D581
D582
R588
JR520
NO401
NO603
NO503
JW502
JW503
JW504
JW505
JW506
JW508
JW509
JW510
JW511
JW512
JW513
JW514
JW515
JW517
JW518
JW519
JW521
JW522
JW523
JW524
JW532
JW535
JW537
JW543
JW544
JW545
JW546
JW547
JW548
JW549
JW551
JW554
JW555
JW556
JW558
JW560
JW562
JW579
JW580
JW581
JW302
JW304
JW306
JW310
JW311
JW312
JW313
JW314
JW315
JW316
JW317
JW320
JW322
JW323
JW325
JW326
JW335
JW336
1
1 8
3
JW350
JW351
JW352
JW353
JW355
JW357
JW358
JW359
JW360
JW600
JW601
JW602
JW603
JW605
JW606
JW587
JW588
JW591
JW596
JW597
JW401
JW402
JW403
JW404
JW405
JW407
JW408
JW409
JW411
JW413
JW416
JW421
JW422
JW423
JW424
JW429
JW431
JW432
JW433
JW434
JW438
JW440
JW441
JW442
JW447
JW452
JW454
JW455
JW463
JW467
JW468
JW469
JW201
JW203
JW204
JW208
JW210
JW216
JW228
JW229
JW230
JW231JW232
JW235
JW236
JW239
JW242
JW244
JW245
JW246
JW247
JW248
JW249
JW250
JW252
JW104
JW105
JW106
JW107
JW108
JW109
JW110
JW111
JW112
JW115
JW118
JW120
JW121
JW122
JW123
JW126
JW127
JW129
JW130
JW131
JW135
JW466
JW256
JW410
JW305
JW138
JW436
JW257
JW526
JW527
JW528
JW139
JW486
JW368
JW258
JW241
JW259
C160
JW400
JW539
JW557
JW224
NO523
C512
JW136
JW540
JW140
JW240
JW370
JW371
JW552
CLP101
CLP102
CLP104
CLP103
JW613
JW531
CLP106
JW200
JW470
JW464
JW425
JW426
JW427
JW428
JW418
JW449
JW217
JW333
JW349
JW365
JW366
JW362
CN102
JW238
JW234
JW233
JW448
JW443
JW475
JW450
JW132
JW484
JW134
JW361
JW356
JW478
JW477
JW476
JW529
JW481
JW577
JW215
JW214
JW209
JW205
JW212
JW561
JW576
JW614
JW574
JW573
JW219
JW253
JW225
JW207
JW595
JW570
JW507
JW604
JW321
JW586
JW592
JW568
JW569
JW611
JW534
JW227
JW226
JW485
JW124
JW575 JW615
JW525
JW137
JW382
JW383
JW384
JW385
JW386JW387
JW388
JW389
JW393
JW394
JW395
JW396
JW397
JW618
JW619
JW369
JW367
JW465
JW472
JW589
JW625
JW626
JW627
JW628
JW629
JW630
JW631
JW632
JW223
JW218
JW533
JW538
JW488
JW590
JW635
JW636
JW637
JW638
JW639
JW640
JW641
JW642
JW643
JW644
JW645
JW646
JW647
JW648
JW653
JW660
JW661
JW662
JW663
JW665
JW666
JW667
JW668
JW673
JW674
JW571
JW243
JW651
JW309
JW650
JW664JW610
JW680
JW681
JW682
JW683
JW685
JW686
JW687
JW688
JW689
JW690
JW691
JW692
JW696
JW697
JW698
JW593
J103
JW456
JW699
C416
C502
C503
CN402
CN508
C352
D561
C357
C358
C374
D560
CN582
C501
C524
C511
C507
C517
C516
C519
C508
C523
C562
C563
3
4
1
1
1
3
C557C558
CN50113 1 18
CN580
EPT560
C554
C506
C505
CN502
Q520
Q585
Q588
C361
L370
CN504
C370
L320
T301
C553
X402
C552
CN510
C379
C378
C521
C228
C276
C520
C114
C277
C227
C269
C504
C131
C130
CN100
CN506
C462
C567
C325
C559
CN503
X401
C518
CN509
D585
D586
CN513
CN105
JW391
JW271
CN521
JW202
JW608
JW607
JW516
JW414
JW417
JW133
JW624
JW390
JW392
JW307
JW119
JW480
JW103
JW146
JW147
JW149
JW150
JW152
JW621
JW623
JW622
C431
JW330 JW145
JW684
CLP105
CN505
JW462
C362
JW237
JW437
JW458
JW457
JW460
JW113
JW117
JW116
JW473
JW675
JW542
JW676
JW550
JW500
JW553
JW251
JW652
C550
CLP108
JW143
JW453
JW148
JW144
JW530
JW100
JW141
JW142
C363
JW541
JW445
JW444
JW415
JW563
JW380
JW451
JW672
JW483
JW482
JW693
JW446
JW694
JW695
JW487
JW474
JW300
C301
C303
C305
C307
C310
C314
C318
C321
C324
C343
C326
C328
C330
C331
C333
C340
C329
C203
C202
C223 C231
C215
C216
C237
C242
C221
C244
C252 C253
C254
C258
C262
C256
C265
C264
C282
C275
C250
JW332
JW331
JW337
JW364
JW363
JW471
JW338
JW339
JW340
JW341
JW342
JW343
JW344
JW345
JW346JW347
JW348
JW329
JW616
JW617
JW430
C240
C239
C167
C105
C101
C102
C103
C106
C107
C109
C110
C111
C113
C127
1 19 5
C115
C116
C117
C128
C156
C157
C158
C162
C173
C163
C164
C166
C168
C170
C165
C174
C118
C238
JW222
CN520
C225
C247
C273
C274
C317
NO402
JW489
JW490
JW491
JW492
JW324
JW678
JW701
JW702
C257
JW703
JW704JW705
JW582
1 3
JW583
JW567
JW566
JW670
JW565
JW671
JW700
R579
JW710
JW711
JW712
JW578
JW649
JW328
JW255
JW609
JW620
JW669
JW211
JW559
JW612
JW303
CN514
JW420
JW128
CLP109
CLP110
1
3
JW101
JW102
JW720
JW721
JW722
JW723
JW598
C566
JW730
CN511
CN512
C514
JW406
JW599
IC501
IC304
IC301
IC401
IC101
IC558
IC559
IC560
IC507
IC561
IC201
1 5
111-872-272-
MAIN BOARD
1
1 4
1
2
17
16
10
R
J201
TV/SAT
AUDIO IN
L
CN102
SYSTEM
CONTROL
TM101
SUBWOOFER
OUT
J202
R
-1
-2
-1
-2
AUDIO OUT
L
J103
D-LIGHT
SYNC OUT
1
2
3
4
5
TAPE A
HEAD
TAPE B
HEAD
TAPE
MECHANISM
DECK
(FOR CHECK)(FOR CHECK)
TU901
TUNER
PACK
M892
DC FAN
7-15. PRINTED WIRING BOARD – MAIN Section – • : Uses unleaded solder.• See page 35 for Circuit Boards Location.
(Page 37) (Page 65) (Page 42)
(Page 60) (Page 62) (Page 52) (Page 58)
(Page 56) (Page 37)
(Page 62)
(Page 62)
(Page 37)(Page 54)(Page 54)(Page 65)
(Page 50)
Ref. No. Location
• Semiconductor Location
D101 I-12
D102 J-12
D136 F-12
D325 I-13
D340 E-4
D342 E-3
D401 D-5
D501 C-5
D502 C-5
D503 C-5
D505 C-5
D550 I-11
D551 I-11
D560 H-8
D561 H-8
D580 I-12
D581 I-12
D582 I-12
D584 E-5
D585 E-13
D586 E-13
D597 B-5
IC101 D-7
IC201 D-11
IC301 H-4
IC304 F-5
IC401 C-3
IC501 C-5
IC507 H-11
IC550 I-11
IC558 G-8
IC559 G-7
IC560 G-11
IC561 H-11
Q101 C-7
Q103 F-12
Q104 F-12
Q117 C-10
Q151 D-6
Q167 C-10
Q200 B-11
Q202 B-12
Q203 B-12
Q204 C-12
Q206 H-12
Q250 C-11
Q252 C-12
Q253 B-12
Ref. No. Location
Q254 B-13
Q256 H-13
Q321 I-4
Q322 I-4
Q323 J-13
Q325 I-4
Q340 E-3
Q341 E-3
Q342 E-3
Q343 E-4
Q344 E-3
Q345 E-3
Q370 J-4
Q372 I-3
Q373 I-3
Q375 I-4
Q377 I-5
Q378 J-4
Q379 I-5
Q380 J-5
Q381 I-5
Q382 I-4
Q383 I-5
Q501 B-5
Q503 H-11
Q504 E-2
Q505 J-8
Q506 J-8
Q507 J-7
Q508 J-8
Q513 G-9
Q514 J-9
Q516 I-8
Q517 I-8
Q518 H-11
Q520 G-9
Q521 J-8
Q522 J-8
Q523 B-5
Q524 C-5
Q550 I-11
Q564 J-9
Q578 I-12
Q579 I-12
Q581 I-11
Q582 I-11
Q585 I-12
Q587 E-5
Q588 E-5
Q589 E-4

45. HCD-GN1200D
HCD-GN1200D
4545
7-16. SCHEMATIC DIAGRAM – MAIN Section (1/5) – • See page 34 for waveform. • See page 77 for IC Pin Function Description of IC401.
(Page 46)
(Page 43)
(Page 49)
(Page 51)
(Page 49)
(Page 46)
(Page 47)
(Page 47)
(Page 48)
(Page 61)
(Page 47)
(Page 66)
(Page 40)
(Page 59)
(Page 49)
(Page 53)
(Page 47)
(Page 48)
(Page 46)
(Page 47)
(Page 48)
(Page 49)
BOARD
MAIN
(4/5)
BOARD
MAIN
BOARD
MAIN
(3/5)
(4/5)BOARD
MAIN
(3/5)
BOARD
KARAOKE
CN2000
BOARD
MAIN
(3/5)
BOARD
MAIN
(2/5),(3/5),(4/5),(5/5)
BOARD
MAIN
(3/5)
BOARD
CN800
BOARD
NO902
MIC
VIDEO
BOARD
MAIN
(5/5)
BOARD
DMB16
(3/4)
CN109
BOARD
CN1200
PRIMARY
BOARD
MAIN
(2/5),(5/5)
BOARD
CN701
DRIVER
BOARD
CN906
PANEL
BOARD
MAIN
(5/5)
BOARD
MAIN
(2/5)
4
E
I
3
1
15 5 18 16
W
7
2
17
F
14
M
A
L
M
-
-
-
SW-ON LED
TUNED
3.3VMNT
BYTE
MC-DIN(ST)
KRMOD
MTK-BUSY
MTK-XIFCS
MTK-RESET
TBLSENSE
OPEN-SW
IIC-CLK
IIC-DATA
CNVSS
MTK-SIO
MTK-SOD
MTK-CLK
TM-F
TM-R
LM-F
LM-R
CAPM-
CONT
A-HALF
A-TRIG
B-TRIG
SW-SPK-RELAY
NOUSE
SURR-RELAY
CENTER-RELAY
FRONT-RELAY
PROTECTOR
OVERVOLTAGEDET
UNDERVOLTAGEDET
DVD-A-MUTE
MTK-POWER
AUDIO-
IC-DATA
VOLUME-IC-CLK
AUDIO-OUT-MUTE
AUDIO-
IC-CLK
VOLUME-IC-DATA
VREF
NO USE
NOUSE
NO USE
ON/OFF-KEY
NO USE
R430
R429
R428
R427
R425
R424
R423
R421
R420
R418
R417
R422
R426
R522
C411
C410
R410
R512
R411
X401
R413
C416
C412
R406
R405
R403
R402
R401
R501
R503
R505
R404
R432
R433
R434
R435
R436
R437
R438
R439
R540
R440
R441
R447
R526R529R530
R487
R488
R585
R584
R485
R484
R460
R461
R465
R466
R471
R472
R473
R474
R467
R574
R573
C464R567 R568C462
R469
R451
R538
R541
C512
R520
CN508
CN402
NO402
TBL ADDRESS SENS
CN520
NC
R407
R500
C501
R545 C503
C502
C360
R359
R384
R360
C325
R357
R356
C357
R358
NO401
CN100
MIC SCORE
MIC ECHO
NC
NO503
JR222
JW598
R491
R494
R497
R490
R489
R502 R546
IC401
Q504
Q523
Q524 Q501
D505 D501
D502
IC501
R431
D503
R593
R493
D401
X402
IC304(1/2)
IC304(2/2)
R361
R383
C431
C352
R468
100
100
100
100
100
100
100
1k
100
R419100
100
10k
100
100
47k
22p
22p
10k
100k
330k
32.768kHz
0
2200
6.3V
0.1
C415
0.1
100
100
100
100
100
10k
10k
10k
100
100
100
100
100
100
100
100
100
R443 100
R444 100
10k
100
100
100
10k10k10k
100
100
10k
10k
100
100
100
R457100
100
100
100
100
R470100
100
100
100
100
10k
10k
0.0110k 10k100
10V
100
100
5.6k
10k
10
50V
10k
17P
10P
4P
13P
CN511
13P
+9V
DGND
SW-VOL
SW-LED
GND/OCSW1
SYSTEM
COMTROL
CN102
4P
100
R557
R558
18k
6.8k
100
R495 100
R594 1k
R595 10k
10
50V
0 0.1
0.1
33p
33k
4.7k
27k
10
50V
4.7k
4.7k
4.7
50V
33k
R560
5.6k
R5591.5k
R320
33k
R321
33k
3P
9P
5P
0
JR597 0
100
100
100
100
100
1k
220
M30622MEP
-B30FPU0
DTC143TKA
BUFFER
DTA114EKA-T146
B+ SWITCH
DTC124EK
B+ SWITCH
DTC124EK
RESET SWITCH
MA2J1110GLSO
MA2J1110GLSO
MA2J1110GLSO
MC2837
BD4929G-TR
100
MC2836
D597
UDZWTE-173.6B
5MHz
NJM4558M
NJM4558M
27k
4.7k
10
50V
C358
4.7
50V
C363
4.7
50V
C362
4.7
50V
47
16V
100
BUS1
V +5V
3.3VMNT
+9V
VIDEO R
VIDEO L
MIC ECHO
M+9V
-VG
-VG
NO USE
VF2
VF1
BUS7
ACCUTDETECT
BUS8
3.3V
OVERVOLTAGE
TCMUTE
REC-OUT-R
L+R
REC-OUT-L
BUS4
BUS9
BUS6
GND
9
9
12
12
4
97
97
31
32
33
73
74
74
79
80
53
54
51
4
73
32
33
47
56
55
34
31
32
33
38
39
89
100
95
94
90
91
1
2
3
5
6
19
18
22
23
24
25
35
36
37
40
40
46
48
49
50
52
21
41
41
42
43
44
26
27
28
24
23
25
22
31
32
21
33
29
30
31
34
26
27
28
34
35
36
37
38
39
83
75
78
76
77
67
65
66
72
70
61
60
58
57
30
29
*
4.7k
1
* 1
MASTER CONTROL
0
330
1k
R493
AMP
SPEANA
RESET
MICSCORE
MUSICL+R
XVOICE
SCORE
CN505
6P
61
A+9V
AGND
DGND
SCORE
XVOICE
81
82
100
95 R482 100
R481 100
DOWNMIX-L
DOWNMIX-R
3.4 <0.2-3.1> [0.2-3.1]
3.4 <0.2-3.1> [0.2-3.1]
3.4 <3.4> [0]
E15, EA
MODEL
(MY,SP,PH)
(E15)
(EA)

46. HCD-GN1200D
HCD-GN1200D
4646
7-17. SCHEMATIC DIAGRAM – MAIN Section (2/5) – • See page 34 for waveform.
BOARD
MAIN
(1/5)
BOARD
MAIN
(1/5),(5/5)
BOARD
MAIN
(1/5),(3/5),(4/5),(5/5)
BOARD
MAIN
(3/5)
BOARD
MAIN
(3/5)
3
7
1
4
8
55
BUS5
TC R
TC L
REC-OUT-L
REC-OUT-R
TAPE A
HEAD
HEAD
TAPE B
TCM MGND
B SHUT
CAPM+
BTRG M+
ATRG M+
REC(FWD)
A SHUT
BHALF
AHALF
TC DGND
REC(REV)
R362
C324
R323
R324
R326 C344
R355 C343
R354
R151
CN510
R303
C303
R352
C301
C305
R305
R308
C307
C310
R310 C364
R369
R353 R307
C361
C333
C326
C328
R363
R328
C330
C321
C318
R319
C317R317
R315
R313
R312
R311
C314
R314
C371
R370
R371
C372
R374
C373
R372 R375
R376R373
T301
BIAS
OSCILLATION
TRANSFORMER
R388
C334 C335
R338 R333
R364
C383 C385
R385
L320
C329
L370
C378
R387
R337
R336
R368
C376
C327
R318
R390 R396
R386
R395
R394
R379
R377 R378
C377 C379
CN503
CN504 C382
C332
R344
R346
R348
R347R342 R343
R349
R340
R345R341
Q325
Q375
Q322
Q378
IC301
Q373
Q372
Q321 R399
R159
D342
D340
Q343
Q345Q344
Q382
Q379
Q381
Q383
Q380
Q377
Q370
C370 C374
R392
R380
R158
R150
C331
C340
Q340Q342
Q341
2.2k
1
50V
2.2k
1k
10k 0.0022
15k 10
50V
47k
4.7k
3P
1.5k
0.1
4.7k
0.012
10
50V
10k
2.2k
1
50V
2.2
50V
47k 0.0022
2.2k
1k 15k
10
50V
10 50V
10
50V
0.1
4.7k
1.5k
0.012
2.2
50V
470
10V22k
10
50V
1M
100
100
100
100
10
50V
4.7k
0.0047
3.3k
4.7k
0.001
4.7k
0.001
6.8k 6.8k
4.7k4.7k
10k
330p 0.022
10k 2.2k
2.2k
330p 0.022
2.2k
27mH
120p
27mH
120p
2.2k
2.2k
2.2k
2.2k
680p
680p
2.2k
10k 10k
33
47k
4.7k
10
47 10k
0.01 0.0068
8P
3P 1200p
1200p
10k
10k
10k
2.2k2.2k 2.2k
3.3k
2.2k
3.3k3.3k
2SD2704K
SWITCH
2SD2704K
SWITCH
2SD2704K
SWITCH
RT1P137P-TP-1
SWITCH
HA12237F
2SD2704K
SWITCH
2SD2704K
SWITCH
2SD2704K
SWITCH
10k
4.7k
MA2J1110GLSO
MA2J1110GLSO
DTC114EKA-T146
A TRIG DRIVE
DTC114EKA-T146
B TRIG DRIVE
DTC114EKA-T146
CAP MOTOR DRIVE
DTA114EKA-T146
SWITCH DRIVE
DTC114EKA-T146
SWITCH DRIVE
DTC114EKA-T146
BUFFER
DTC114EKA-T146
SWITCH DRIVE
DTC114EKA-T146
SWITCH
2SA1162-YG
SWITCH DRIVE
2SD596DV345
BIAS OSC
0.01
100V
47
10V
6.8k
6.8k
5.6k
5.6k
47
16V
47
16V
2SB1132
A TRIG DRIVE
2SB1132
B TRIG DRIVE
2SB1132
CAP MOTOR DRIVE
+9V
TC MUTE
BUS8
M+9V
3.3V
GND
56
54
53
52
50
49
48
PB/REC EQUALIZER AMP
DECK A/B SELECT,
R381
R382
R332
R365
R366
R316
R331
R350
R300
CN509
4.7k
47k
3.3k
3.3k
10k
47k
22k
4.7k
4.7k
11P
89
47
90
91
(Page 47)
(Page 47)
(Page 45)
(Page 47)
(Page 48)
(Page 49)
(Page 45)
(Page 45)
(Page 49)

47. HCD-GN1200D
HCD-GN1200D
4747
7-18. SCHEMATIC DIAGRAM – MAIN Section (3/5) –
8
2
10
19
V
16
11
C
6
12
5
7
15
BOARD
MAIN
(2/5)
BOARD
MAIN
(1/5)
BOARD
MAIN
(2/5)
BOARD
MAIN
(4/5)
BOARD
MAIN
(1/5)
BOARD
(1/4)
CN315
DMB16
MAIN
BOARD
(1/5)
MAIN
BOARD
(5/5)
MAIN
BOARD
(5/5)
BOARD
MAIN
(1/5)
BOARD
EFFECTOR
CN1502
BOARD
MAIN
(5/5)
BOARD
MAIN
(1/5),(2/5),(4/5),(5/5)
J
K
CN506
R532
C102
R102
C106
R104
R107 C107
C103
C101
C105
R108 R110 C127
C115
R111
C111
R116
C120
C128
R130
R123
R121
R124
C165
R172
R117
C114
R164 R114
R160 R112
R170 R115
R163 R113
C174
C118
C559
JR502
JR509
CN521
R152
R155
R156
C158
R162
C173
R173
C164 C162
R165
C170
C109
C110
JR104
C163
C168
IC101
Q167
Q117
C167
C166
R166
Q101
Q151
C116 C117
C156C157
R531
R581
R582 R167
C113
R180
R131
R133
R132
C131
C130
C160
9P
3.3k
6.8k
6.8k
10
50V2.2k
10
50V 1k
1k 10
50V
10
50V
100
10V
10
50V
100 2.2k 1
50V
10
50V
10k
0.033
820
0.1
330
10V
2.2k
10k
10k
47k
10
50V
0
0
10
50V
10k 10k
47k 47k
1k 1k
10k 10k
10
50V
10
50V
1000
10V
0
0
21P
1
10k
47k
10k
10
50V
10k
1
50V
2.2k
0.022 0.033
100
10
50V
0.022
0.022
0
0.022
1050V
M61529FP-D60G
2SD2114K
MUTE
2SD2114K
MUTE
10
50V
10
50V
1k
2SC1623
SWITCH
2SC1623
SWITCH
0.15 0.27
0.270.15
3.3k 1k
0.015
820
2.2k
100k
1M
0.47
50V
10
50V
0.015
50V
BUS1
BUS2
BUS3
BUS4
BUS5
AU+5V
21
+9V
XVOICE
XVOICE
SCORE
SCORE
DBFB
VIDEO L
VIDEO R
MIC ECHO
TC L
TC R
GND
MUTE 4
REC-OUT-R
REC-OUT-L
L+R
FL
FR
SW
SAT-R
DOWNMIX-R
L-OUT
LINK-R
80
79
LFE
FC
DM_L
DM_R
MB_SL
MB_SR
MB_FR
MB_FL
1
2
3
5
6
REC-OUT-L
REC-OUT-L
REC-OUT-R
REC-OUT-R
R-OUT
LINK-L
SAT-L
DOWNMIX-LELECTRICAL VOLUME
GRAPHIC EQUALIZER CONTROL,
INPUT SELECT SWITCH,
TU901
TUNER
PACK
CN512
17P
R325
D325
D101 D102
Q323
R330
R334
R329
1k
MAZ8047GMLSO
MA2J1110GLSO MA2J1110GLSO
J103
2SC5053
+4V SWITCH
1k
0
100k
D-LIGHT
SYNC OUT
IIC CLK
IIC DATA
DGND
D+4V
L+R(SPEANA)
DGND
BUS6
BUS10
18
19
43
44
70
57
EFFECTORR
EFFECTORL
A+9V
INPUTR
INPUTL
S0
S1
S2
OUTPUTR
OUTPUTL
AGND
AGND
AGND
AGND
SELECTOR
AGND
DGND
CTRL3
CTRL1
7.84.7
4.7
(Page 46)
(Page 45)
(Page 46)
(Page 45)
(Page 48)
(Page 38)
(Page 49)
(Page 49)
(Page 45)
(Page 45)
(Page 46)
(Page 48)
(Page 49)
(Page 45)
(Page 57)(Page 49)

48. HCD-GN1200D
HCD-GN1200D
4848
7-19. SCHEMATIC DIAGRAM – MAIN Section (4/5) –
BOARD
MAIN
(1/5),(2/5),(3/5),(5/5)
BOARD
MAIN
(1/5)
BOARD
MAIN
(5/5)
BOARD
MAIN
(5/5)
BOARD
SURROUND
(1/2)
NO801
BOARD
BOARD
MAIN
(3/5)
(2/2)
CN701
SURROUND
BOARD
MAIN
(1/5)
17
C270
C272
R287
R304
R265C265
R263C263
C262
R254
R260
C258R258
R267
R264C257
R266
C269
C259
R257
R256C255
R259
R255
R261
C275
C253
C252 R275
R251 C251 R252
R253
C274
C273
C276
C250
C277
R271
R269
R279
R302
R282
R278
R277
R273
R249
R299
R268R262
R274
R270 C256
R272
C225
C254
R276
R280
C203
R204
R203 C202
R223R212
R214
R225
C223
C237
R233
R234
C231
R235R227
C228
C247C244
R231
R229
R228
R230
R242
R232
R249
R292
C227
C215
C222
R221 R216 C243
R211C241R220 R209
R215
C216
C217
C220
R217 C236 R207 R208
C221
R218
R226
C242
C238
CN514
R238
R288
C240
C239
R239
R289
R297
R247
R246
R296 R295
R245
R294
R244
R293
R243 FB204
FB254
FB260
FB261 R240 C229
R290 C279
C521
C520
J201
Q253
Q202
Q252
Q200
Q250
Q203
Q204
Q254
Q256
Q206
J202
R283
R285
C281
C271
R281
R284
R298
JR218
R286
C264
R241
JW258
JW102JW101
C282
C260
R291
R224
R213
C530
C235
0.47
IC201
0.001
0.001
10k
8.2k
6.8k10 50V
4.7k0.001
10
50V
10k
4.7k
10
50V
47k
10k
8.2k10
50V
2.2k
10
50V 0.001
0
4.7k0.001
10k
47k
2.2k
10
50V
10
50V
10
50V
47k
470 220p 10k
0
1
50V
1
50V
1
50V
1
50V
1
50V
10k
10k
10k
10k
10k
1k
47k
10k
10k
R301
10k
10k
1k1k
47k
47k 10
50V 2.2k
1
50V
10 50V
8.2k
1k
0.1
5.6k
5.6k 0.1
22k10k
10k
22k
10
50V
10
50V 47k
1k
10
50V
10k10k
1
50V
1
50V
10
50V
47k
47k
1k
1k
10k
10k
10k
10k
1
50V
100
10V
220p
10k 470 220p
2.2k0.00222.2k 47k
47k
100 10V
0.001
0.001
2.2k 0.0022 2.2k 47k
10
50V
3.3k
3.3k
10 50V
10 50V
5P
0
0
10
50V
10
50V 10k
10k
1k
1k
47k
47k 10k
10k
100k
100k
1k
1k 0
0
0
0 15k 220p
15k 220p
10
50V
10
50V
2SD2114K
MUTE
2SD2114K
MUTE
2SD2114K
MUTE
2SD2114K
MUTE
2SD2114K
MUTE
2SD2114K
MUTE
2SD2114K
MUTE
2SD2114K
MUTE
2SD2114K
MUTE
2SD2114K
MUTE
10k
10k
0.001
220p
47k
47k
1k
0
10k
10
50V
33k
220
10V
0.1
33k
6.8k
6.8k
M61530FP-D60G
BUS3
BUS9
BUS2
+9V
GND
LINK-L
LINK-R
SW
DOWNMIX-L
DOWNMIX-R
DOWNMIX-L
DOWNMIX-R
SAT-R
SAT-L
81
82
REC-OUT-L
REC-OUT-R
EFFECTOR_R
EFFECTOR_L
MB_FL
MB_FR
MB_SL
MB_SR
FC
LFE
FL
FR
100p
0.1
R
L
SURROUND VOL CONTROL
R
L
SWOUT
DVDMUTE
MUTE
TM101
CN105
3P
+
–
SW+
SW-
(EXCEPT EA)
(EA)
(Page 49) (Page 45) (Page 45)(Page 46)
(Page 47)(Page 49)
(Page 49)
(Page 45)
(Page 47)
(Page 64)
(Page 63)

49. HCD-GN1200D
HCD-GN1200D
4949
BOARD
BOARD
(1/2)
BOARD
BOARD
PA
TRANS
SURROUND
PA
BOARD
MAIN
(1/5)
BOARD
MAIN
(1/5),(2/5)
CN600
CN1213
CN700
CN601
BOARD
MAIN
(4/5)
BOARD
MAIN
(3/5)
BOARD
MAIN
(4/5)
BOARD
DMB16
(4/4)
BOARD
(3/5)
MAIN
BOARD
MAIN
(1/5),(2/5),(3/5),(4/5)
CN401
BOARD
(1/5)
MAIN
BOARD
MAIN
(3/5)
G
4
N
K
3
H
20 19
12 13
7
6
D
14
Q579
2SC1623
HI SPEED SWITCH FAN MOTOR DRIVE
Q587-589
61
65
SW OUT
SW A-GND
SW LINE MUTE
SW SPK RY
STK MUTE
UNREG
UNREG
OVELOAD
DC DETECT
DVD LINE MUTE
CENTER-SPK-SW (NC)
REAR RELAY
CENTER RELAY
SWOUT
/
IC559
R578
R528
R527
R577 R575
R525
R542
R576
C554
C504
CN502
C550 C551
C552
R549
R551
C553
R588
R591
D581
C580
Q585
R579
C581
CN580
R548
R506R523
R539
C569
R547
C519
1000
10V
C567
D561
R524
R507
C514
C513
C515
C566
C564C563
C565C562 C568C516
C557
C558
D560
NO603
8P
C517
C511
R552
R553
R554
R513
R544
C507
C508
R511
R556
R555
C524
C523
R537
R510
R509
C506
C505
CN501
Q514
Q564
NO523
5P
R508
D550
D551
EPT560
(CHASSIS)
Q550
IC558
IC507
Q578
IC561
IC560
D582
D580
Q582
Q581
Q505
Q506
Q522
Q521
Q507
Q508
Q516
Q517
Q520
Q513
Q518
Q503
IC550
mPC3533AHF
10k
10k
47k
47k 10k
10k
1k
1k
10
50V
10
50V
8P
100
16V
0.1
2.2
50V
1.8k
56k
220
25V
1k
10k
0.1
2SD2525
330
2W
0.1
3P
4.7k
4.7k4.7k
4.7k
0.1
2.7k
R135
1.5k
4700
16V
D5SBA60F01
10k
10k
1000
16V
0.1
0.1
4700
25V0.1470
16V
0.1470
16V
0.1470
10V
0.01
0.01
D5SBA60
2.2
50V
2.2
50V
68k
470k
15k
15k
68k
2.2
50V
2.2
50V
470k
15k
68k
2.2
50V
2.2
50V
470k
8.2k
68k
2.2
50V
2.2
50V
13P
2SC5938
MUTE
2SC5938
MUTE
470k
MA2J1110GLSO
MA2J1110GLSO
DTC143TKA-T146
TA7805LS
PQ09RD21J00H
DTC143TKA
TA7809LS
BA09T
HZU2.0BTRF
D136
MAZ8056GMLSO
2SC1623
2SC1623
DTA124EKA-T146
MUTE DRIVE
DTC114EKA-T146
MUTE DRIVE
DTA124EKA-T146
MUTE DRIVE
DTC114EKA-T146
MUTE DRIVE
DTA124EKA-T146
MUTE DRIVE
DTC114EKA-T146
MUTE DRIVE
DTA124EKA-T146
MUTE DRIVE
DTC114EKA-T146
MUTE DRIVE
2SB1565F
B+ SWITCH
Q103
2SC5053T100Q
AU +5V REG
DTC114EKA-T146
B+ SWITCH
DTC114EKA-T146
REG SWITCH
Q104
DTC114EKA-T146
REG SWITCH
DTC114EKA-T146
REG SWITCH
RT8H015C-T112-1
BUS10
BUS7
AU +5V
+9V
MUTE
DBFB
M+9V
MUTE4
GND
VF 2
VF 1
VG
AC CUT DETECT
OVER VOLTAGE
DVDMUTE
72
60
94
67
78
58
42
66
76
77
46
83
R-OUT
L-OUT
M+9V REG.
A+9V REG.
MB+9V REG.
OVER VOLTAGE DETECT
FAN MOTOR DRIVE
Q578,581,582,585
SW +3.3V REG.
SW +5V REG.
V +5V
3.3VMNT
OVER CURRENT
PROTECTOR
D586
10EDB40
D585
10EDB40
JR514
0
Q588
2SD2525
C583
0.1
JR583
0
JR585
0
JR584
0
R566
4.7k
Q587
2SC1623
C584
CN582
0.1
3P
M892
D584
MAZ8130GMLSO
MAZ8068GMLSO
MAZ8068GMLSO
Q589
2SC1623
R570
4.7k
R590
10k
R589
1k
CN513
13P
R586
2.2k
DC FAN
M891
FAN+
FAN-
DC FAN
JR513 0 60
51
7-20. SCHEMATIC DIAGRAM – MAIN Section (5/5) –
(Page 55)
(Page 45)
(Page 66)
(Page 46)
(Page 45)
(Page 63)
(Page 55)
(Page 48) (Page 47)
(Page 45)
(Page 41)
(Page 47)
(Page 45)
(Page 46)
(Page 47)
(Page 48)
(Page 47) (Page 48)

50. HCD-GN1200D
HCD-GN1200D
5050
7-21. PRINTED WIRING BOARD – PANEL Section – • : Uses unleaded solder.• See page 35 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
2 3 4 5 6 7 8 9 10 11 12 13 14
65
64
70
7 6 1
1
216
17
18
1
224
25 2 1
O
VCC
B E
B C E B C E
E B
E B E B E B
B E
1 100
30
31
81
80
50 51
11 20
110
JW950
JW951
JW952
JW953
JW954
JW955
JW956
JW957
JW961
JW964
JW965
JW966
JW967
JW968
JW969
X900
JW970
JW973
JW974
JW975
JW976
JW978
JW979
JW980
JW981
JW982
JW983
JW984
JW985
JW986
JW987
Q900
Q901
Q902
Q903
JL1017
JL1018
JL1019
JL1020
JL1021
JL1022
JL1023
JL1024
JL1025
JL1026
JL1027
Q917
JL1028
Q918
JL1029
Q919
JL1030
Q920
JL1031
JL1032
JL1033
JL1034
JL1035
JL1036
JL1037
JL1038
JL1039
JL1040
JL1041
JL1042
JL1043
JL1044
JL1045
JL1046
JL1047
JL1048
JL1049
ND900
VACUUM FLUORESCENT DISPLAY
JL1050
JL1051
JL1052
JL1053
JL1054
JL1055
JL1056
JL1057
JL1058
JL1059
JL1060
JL1061
JL1062
JL1063
JL1064
JL1065
JL1066
JL1067
JL1068
JL1069
R1012
R1013
JL1070
R1014
JL1071
JL1072
JL1073
JL1074
JL1075
JL1076
JL1077
JL1078
JL1080
JL1081
JL1082
CN900
CN906
R929
R930
R931
R933R934
R935
R937
R938
R939
C900
C901
C902
C903
C904
R940
C905
C906
R942
C907
R943
C908
R944
C909
R945
R946
R948
R949
X900
C910
C911
C912
C913
C914
C915
R951
C916
R952
C917
R953
C918
C919
JL901
JL902 JL903
JL904
C920
JL905
C921
C922
R1072
C923
R1073
JL908
C924
R1074
JL909
C925
R1075
C926
R962
R1076
C927
R963
C928
R966
R967
JL910
R968
JL911
R969
JL912
JL913
JL914
C930
JL915
C931
JL916
C932
JL917
C933
JL918
C934
R970
JL919
C935
R971
CN956
C936
R972
C937
CN957
R973
C938
R974
C939
R975
R976
R977
JL920
JL921
R979
JL922
JL923
JL924
C940
JL925
C941
JL926
C942
JL927
JL928
C944
JL929
R981
C946
R982 R983
JL930
JL931
JL934
JL935
C951
C952
JL937
C953
JL938
JW900
JL939
JW902
C956
JW903
C957
JW904
C958
JW905
C959
JW907
JL940
JW908
JL941
JW909
JL942
D900
C960
D901
C961
D902
C962
D903
C963
JW910
C964
JL949
JW911
C965
JW912
C966
JW913
JR900
JW914
JR901
JW915
JR903
JW917
JL950
JL951
JW919
JL952
JW920
C974
JW921
JW922
JW923
JW924
JW925
C979
JW926
JW927
JW928
JW929
IC900
IC901
IC902
JW930
C984 JW931
C985
JW935
JW937
JW938
JW939
JW940
JW942
JW944
JW945
JW946
JW947
JW948
JW949
BOARDPANEL
I
MAIN
BOARD
CN508
X
FUNCTION BOARD CN950
16
(16)1-872-593-
(Page 44)
Ref. No. Location
• Semiconductor Location
D900 D-4
D901 F-11
D902 C-5
D903 F-11
IC900 F-8
IC901 B-13
IC902 F-3
Ref. No. Location
Q900 G-12
Q901 F-12
Q902 G-11
Q903 F-12
Q917 E-11
Q918 E-10
Q919 E-11
Q920 B-3
(Page 52)