The Basic standards for learning about ICT Machine

1. Measurement Theory of ICT
ININ--CIRCUIT TESTER TRAININGCIRCUIT TESTER TRAININGININ--CIRCUIT TESTER TRAININGCIRCUIT TESTER TRAINING
1

2. (2048)
(1921)
1921
1922
1923
2048
(H)
(L)
(H)
(G)
(G)
(L)
#16
(H) (L) (G)
Structure of 3-wire System
2
Relay B/D (DYM-1100)
(128)
(1)
1
2
3
128
(H)
(H)
(L)
(G)
(G)
(L)
#1
Back plane
Analog line

3. • Constant Voltage set-up with Seven
different current range by using D/A
Converter
1 – 0 : 50mA ; 7 Ω ~ 26.1 Ω
1 – 1 : 5mA ; 26 Ω ~ 261 Ω
1 – 2 : 500uA ; 260 Ω ~ 2.61 ㏀
1 – 3 : 50uA ; 2.6 ㏀ ~ 26.1 ㏀
Rx
A
H L
1-1. Applying constant Voltage => Resistor testing by Current
measurement [MODE – 1]
Basic Drawing
3
1 – 3 : 50uA ; 2.6 ㏀ ~ 26.1 ㏀
1 – 4 : 5uA ; 26 ㏀ ~ 261 ㏀
1 – 5 : 500nA ; 260 ㏀ ~ 2.61 ㏁
1 – 6 : 50nA ; 2.6 ㏁ ~ 26.1 ㏁
DC Constant Voltage
0.3V 250mA max.
A
DC Current Meter
50nA F.S -> 50mA F.S
Rx = 0.3V / I(Meas)
Measure Range : 7 ohm ~ 26.1Mohm

4. 1-2. Applying constant Voltage => Resistor testing by Current
measurement [MODE – 1]
Basic Circuit Drawing
4

5. • Limit Voltage of constant current is fixed to
0.4V
• Six kinds of ranges according to consisting
method of constant current circuit
2 – 0 : 100mA ; 0.1 Ω ~ 4.3 Ω
2 – 1 : 10mA ; 4.2 Ω ~ 43 Ω
DC Constant Current
I = 1uA ~ 100mA Rx
H
L
(6 Range) max 0.4V
V
Volt Meter
2-1. Applying constant Current => Resistor testing by Voltage
measurement [MODE – 2]
Basic Circuit Drawing
5
2 – 1 : 10mA ; 4.2 Ω ~ 43 Ω
2 – 2 : 1mA ; 42 Ω ~ 430 Ω
2 – 3 : 100uA ; 420 Ω ~ 4.3 ㏀
2 – 4 : 10uA ; 4.2 ㏀ ~ 43 ㏀
2 – 5 : 1uA ; 42 ㏀ ~ 430 ㏀
Rx = V(Meas) / I (Range)
Measure Range : 0.1 ohm ~ 430kohm

6. 2-2. Applying constant current => Resistor testing by Voltage
measurement [MODE – 2]
Basic Circuit Drawing
6

7. VC
VR R
C
tm T
V
(Measuring time)
DC Constant Current1
I = 1uA ~ 100mA
H
L
(6 Range) max 0.4V
V
Volt Meter
Cx
100uF
3-1. Applying Constant Current => Capacitor testing by Voltage and
Time measurement [MODE – 4]
Basic Drawing
7
(Measuring time)
• Good for testing Capacitor over 1uF
• High Capacitance is measured by high current range
• Capacitance can be measured by measuring charged
voltage and time by applying constant current to Capacitor
like Mode-2
Cx = I * tm / Vc(Meas)
Measure Range : 2.99nF ~ 1F
4 - 0 : 2.99nF ~ 30nF (1uA)
4 - 1 : 29.9nF ~ 300nF (10uA)
4 - 2 : 299nF ~ 3uF (100uA)
4 - 3 : 2.99uF ~ 30uF (1mA)
4 - 4 : 29.9uF ~ 300uF (1mA)
4 - 5 : 299uF ~ 3mF (10mA)
4 - 6 : 2.99mF ~ 30mF (100mA)
4 – 7 : 29.9mF ~ 1 F (100mA)

8. 3-2. Applying Constant Current => Capacitor testing by Voltage and
Time measure [MODE – 4]
Basic Circuit Drawing
8

9. DC Constant Current
I = 1uA ~ 100mA
H
(6 Range) max 40V
L
V
Volt Meter
D1
0.7V
4-1. Applying Constant Current => Diode testing by Voltage
measure [MODE – 10]
Basic Drawing
9
• Six kinds of ranges according to
consisting method of constant current
circuit
10 – 1:1uA, 2:10uA, 3:100uA,
4:1mA, 5:10mA, 6:100mA Diode Characteristic Curve

10. • Applying reverse bias to measure
breakdown voltage of Zener diode
• “Act value” should be adjusted properly
DC Constant Current
I = 1uA ~ 100mA
H
(6 Range) max 40V
L
V
Volt Meter
ZD1
20V
4-2. Applying Constant Current => Diode Testing by Voltage
measure [MODE – 10]
Zener Diode test
10
• High voltage not to be applied to prevent damaging other components, Limit Voltage must be
decided when measuring without diode. Calculating Hi-Limit
Act x 1.2 x (1.Hi-limit)
Example) Generally, when measuring 0.7 V drop voltage , if “Act value” is 1V and Hi-limit is
20%, Limit Voltage is 1 x 1.2 x 1.2 = 1.4V.

11. core
4-3. Applying Constant Current => Diode testing by Voltage
Measure [MODE – 10]
Measure of IC lead’s Open
11
1345678
V
GND
H
2
L • IC-lead’s open can be checked by
measuring diode inside of IC
• Must be fully reviewed and used not to
damage IC core.

12. Back plane
Analog line
Fixture
(H)
(H)
(L)
(G)
(G)(L)(H)
(2)
(1)
(128)
(L)
(G)
I = 1[mA] *Fix
Limit voltage = 1.4V
Diode V = 0.7[V] *Measure
H
1
L
2
D1
0.7V
4-4. Applying Constant Current => Diode Testing by Voltage
Measure [MODE – 10]
Basic Circuit Drawing
12
Act:1V Std:0.7V Hpin: 1 Lpin: 2
H-limit: 20% L-limit:-20%
Mode 10-4 (1mA)
Relay B/D (DYM-1100)
I=1[mA]
DC 정전류
(G)
V
Volt Meter
RY12A
RY19A
DC Measure B/D (DYM-5100E)
RY7A DC Constant
Current
I=1[mA]

13. NPN PNP
1mA 15 – 1 15 – 4
10mA 15 – 2 15 – 5
100mA 15 – 3 15 – 6
H pin Collector Emitter
DC Constant Current
I = 1mA ~ 100mA
V
Volt MeterDC CV
3.15V
470
H
L
G
5-1. Applying Constant Current => TR On Test by Voltage
Measure [MODE – 15]
Basic Drawing
13
• Mode-10 of Constant current and bias constant voltage is used for ON TEST of TR.
• Calculation of Limit Voltage is same as Mode-10
• 470Ω is used to 3.15V of constant voltage source to limit bias current.
• Bias Voltage applying to base is set to guard pin(G0).
L pin Emitter Collector
G pin Base Base

14. (H)
(L)
(G)
Back plane
Analog lineFixture
(H)
(H)
(L)
(G)
(G)(L)(H)
(2)
(1)
(128)
(L)
G
1
2
3
Q
L
(3)H
5-2. Applying Constant current => TR On Test by Voltage
measure [MODE – 15]
Basic Circuit Drawing
14
Act:2V Std:0.1V
H-limit: 0.5V L-limit:-0.5V
H: 3, L: 2, G0: 1
Mode 15-4 (1mA)
Relay B/D (DYM-1100)
I=1[mA]
DC-CC
(L)
(G)
V
Volt Meter
RY12A
DC Measure B/D (DYM-5100E)
RY19A
RY7A
DC-CV
3.15V
470
RY1A

15. • Resistor can be checked by measuring
current as same as applied voltage phase.
• Applying voltage frequency is fixed to 1.6.
• Good for inductors and resistors around
resistors.
• Measuring range is somewhat limited
comparing to other modes.
Rx
A AC Current Meter1
2mA F.S -> 20mA F.S
LH
AC Constant Voltage1
0.3V 250mA max.
1.6kHz
Phase Separation
6-1. Applying AC Constant Voltage => Resistor Testing by AC
Measure [MODE – 3]
Basic Drawing
15
• Guarding pin is grounded.
3 – 0 : 5.1Ω ~ 62Ω
3 – 1 : 51Ω ~ 620Ω
3 – 2 : 510Ω ~ 6.2㏀
Rx = 0.3V / I(Meas)
Measure Range : 5.1 ohm ~ 6.2 Kohm

16. • Capacitance of Capacitor is measured by
measuring current 90 degree phase ahead
than Voltage..
• Used testing low capacitance of capacitor.
• Guard pin is grounded.
7 – 0 : 0.16nF ~ 1.9nF (160kHz)
LH
AC Constant Voltage1
Phase Separation
1.6kHz, 16kHz, 160kHz
0.3V 250mA max.
Cx
A AC Current Meter
2mA F.S -> 20mA F.S
6-2. Applying AC Constant Voltage => Capacitor Testing by AC
Measure [MODE – 7]
Basic Drawing
16
7 – 0 : 0.16nF ~ 1.9nF (160kHz)
7 – 1 : 1.6nF ~ 19nF (160kHz)
7 – 2 : 16nF ~ 190nF ( 16kHz)
7 – 3 : 160nF ~ 1.9uF (1.6kHz)
7 – 4 : 1.6uF ~ 19uF (1.6kHz)
Cx = e / i(Meas)
Measure Range : 0.16nF ~ 19uF

17. • Coil is tested by measuring current 90
degree phase behind than Voltage.
• Most of Coil is tested in mode-9 because of
wide measuring range
• Guard pin is grounded
LH
AC Constant Voltage1
0.3V 250mA max.
Phase Separation
1.6kHz, 16kHz, 160kHz
A AC Current Meter
2mA F.S -> 20mA F.S
Lx
6-3. Applying Constant AC voltage => Coil Testing by AC current
Measure [MODE – 9]
Basic Drawing
17
9 – 0 : 5.4uH ~ 62uH (160kHz)
9 – 1 : 54uH ~ 620uH (160kHz)
9 – 2 : 540uH ~ 6.2mH ( 16kHz)
9 – 3 : 5.4mH ~ 62mH ( 16kHz)
9 – 4 : 54mH ~ 620mH (1.6kHz)
9 – 5 : 540mH ~ 6.2 H (1.6kHz)
Lx = e / i(Meas)
Measure Range : 5.4uH ~ 6.2H

18. 6-4. Applying Constant AC Voltage => Resistor Testing by AC
Current Measure [MODE – 3]
Basic Circuit Drawing
18

19. 6-5. Guarding Pin Setting in constant voltage mode and
constant voltage mode
19

20. ININ--CIRCUIT TESTER TRAININGCIRCUIT TESTER TRAININGININ--CIRCUIT TESTER TRAININGCIRCUIT TESTER TRAINING
BASICBASIC
TRAININGTRAINING
BASICBASIC
TRAININGTRAINING
20

21. 1. Equipment1. Equipment
DescriptionDescription
1. Equipment1. Equipment
DescriptionDescription
21

22. Analog Meter of Tester is equal to Monitor of I.C.T
1-1. Display
22

23. 1-2-1. Mode-Range
Component Selection Switch of Tester is equal to Mode-Range of I.C.T
23

24. Test Point Mode Note
Measuring
Method
Resistor
1
2
1 : High value Resistor (over 100Ω)
2 : Low value Resistor ( less 100Ω)
CV
CC
Electrolytic
Capacitor
4 In ㎌ CC
Polarity 6 3-PIN Wire Method CC
Ceramic &
7 AC/LC
1-2-2. Measuring Components in different modes
24
Ceramic &
Polyester Film
7 AC/LC
Coil 9 AC/LC
Diode,TR,IC 10,11 CC
Voltage 12 Separate Voltage apply is required
Short 14 CV
Open 13 CV
SCR,FET 15 CV

25. Leads of Tester are equal to pins of fixture
1-3-1. Fixture & Test pin
25

26. 1-3-2. Fixture & Test pin
26
Leads of Tester are displayed as H-pin and L-pin of Data program

27. 3 2
1
4
L-pinH-pinComponentsStep
1-3-3. How to assign Test Pin Points
27
21R115
43R74
43R63
31R42
23C41
L-pinH-pinComponentsStep
A pin is assigned basically in a pattern

28. Tester measures R1
R2R1 R2R1
Tester measures R2
1-4-1. Use of Relay board
28
To measure R2 after R1, Leads must be moved.

29. R2R1 R2R1
Tester measures R1 Tester measures R2
1-4-2. Use of Relay board
29
Tester has to move leads to measure R1/R2 however relay does same job in I.C.T
Without moving

30. R2R1
1-4-3. Use of Relay board
30
SDP-1100 : Relay Board

31. 1-4-4. Connecting 100pin Connector
SDP-1100 Relay board
1
2
3
4
31
8 7 6 5 4 3 2 1 1
1
2
3
4

32. 1-4-5. Connecting 100pin Connector to Relay board
32
SDP-1100 SUB Connector

33. R2R1
1-4-6. Fixture
33
Leads of Tester are partially considered Fixture

34. 36
1-4-7. Connecting 100-pin Connector to Fixture
34
2
1
5
4

35. 3
I
I
I
9
I
I
I
10
2
3
2
1-4-8. 100-pin Connector Pin Number Arrangement
35
1
9
7
5
3
1
10
8
6
4
2
2
1
1

36. 36

37. 1 2 145 7 9 11
2 2 146 8 10 12
1-4-9. Relay board check(1)
37
2
Second Relay Board has a problem

38. 1 2 145 7 9 11
2 2 146 8 10 12
1-4-10. Relay board check(2)
38
Pin No. is Fixture’s Pin number

39. 1 2 145 7 9 11
2 2 146 8 10 12
1-4-11. Relay board check(3)
39
Relay 7,9,11,8,10,12 of Relay Board have problem

40. 1-4-12. Relay Check(1)
1 2 145 7 9 11
2 2 146 8 10 12
40
OK
When both ends of leads of Relay are checked.
If it is open, Relay is good

41. 1 2 145 7 9 11
2 2 146 8 10 12
1-4-13. Relay Check(2)
41
NG
When both ends of leads of Relay areWhen both ends of leads of Relay are
checked. If it is short, Relay is bad

42. 42

43. 1-4-14. Check if all of Relay Board is bad((2)
43
Check DYM-7913(Relay Control Board)
Check the cable between DYM-7913 and DYM-9000
Check Measure Board(DYM-5100/DYM-4062)

44. DYM-9916 : CPU Board
DYM-5100 : DC Measure Board
DYM-4062 : AC Measure Board
1-5. Measure board
44

45. 45

46. 1-6. Test block
Components value
Fixture
Relay Board
46
⇒ ⇒ ⇒ ⇒
⇒
Components value ⇒ Fixture ⇒ Relay Board ⇒ Measure Board ⇒ PC
⇒ Monitor / Printer / Press Control Board(DYM-6306)
Measure BoardPCMonitor / Printer /
Press Control Board(DYM-6306)

47. 1-7. Power
47
⇒ ⇒ ⇒ ⇒220V ⇒ SMPS ⇒ System Rack ⇒ Measure Board & Relay Board ⇒ Fixture

48. 1-8-1. Debugging Method ( over 100Ω resistor)
48
Compo
nent
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
R1 1kW 1kW 1 - 10 % -10 % 5 9 6
※ If pin # 6 is set up as G-pin, more stable measurement can be achieved.

49. 1-8-2. Debugging Method (less than100Ω Resistor)
49
Compo
nent
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
R2 82 W 82 W 2 - 10 % -10 % 6 5 1~3
※ Stable measurement can be done after assigning 1~3 of waiting time caused by C2

50. 1-8-3. Debugging Method (VR)
50
Compo
nent
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
R3
1 kW
㏀
500W 1 - 50 % -50 % 6 7 5
※ If pin# 5 is set up as G-pin, more stable measurement can be achieved.

51. 1-8-4. Debugging Method (Capacitor(c))
51
Compo
nent
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
C1 100nf 100nf 7 - 30 % -30 % 1 7
※ If pin# 5 is set up as G-pin, more stable measurement can be achieved.

52. 1-8-5. Debugging Method (Capacitor(c))
52
Compo
nent
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
C2 10 uF 10 uF 4 - 30 % -30 % 1 6 100100
※ Caution : When measuring Electrolytic Capacitor, if waiting time (Ws) is set,
can not achieved stable measurement .

53. 1-8-6. Debugging Method (Capacitor (C))
53
Comp
onent
Act
Stand
ard
Mode Range H-lim L-lim H-pin L-pin Ws R0/C0
G-
pin
C3 47 pF 47 pF 7 0 30 % -30 % 1 8 87 ㎊
[R0/C0] button is clicked then internal machine resistance value is input in pF and
exact 47pF can be measured

54. 1-8-6. Debugging Method (Diode)
54
Compo
nent
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
D2 1V 0.75V 10 3~5 30 % -30 % 5 4
※ Caution : When H-pin and L-pin are changed each other, [OPEN-NG] should be
appeared so that reversed mount is found.

55. 1-8-7. Debugging Method (LED)
55
Compo
nent
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
LED1 2V 1.8V 10 5 30 % -30 % 9 1

56. 1-8-8. Debugging Method (Zener Diode)
56
Compo
nent
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
ZD1 6V 5.6V 10 6 30 % -30 % 2 1
ZD1 1V 0.75V 10 3~5 30 % -30 % 1 2
1.Wrong Component Check 2. Reversed mount Check
12

57. 1-8-9. Debugging Method (Coil)
57
Compo
nent
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
L1 10 uH 10 uH 9 0 40 % -40 % 4 3

58. 1-8-10. Debugging Method (TR(NPN))
58
Componen
t
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
Q2 B-E 1V 0.75V 10 3~5 30 % -30 % 6 8
Q2 B-C 1V 0.75V 10 3~5 30 % -30 % 6 5

59. 1-8-11. Debugging Method (TR(PNP))
59
Componen
t
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
Q3 E- B 1V 0.75V 10 3~5 30 % -30 % 2 9
Q3 C-B 1V 0.75V 10 3~5 30 % -30 % 3 9

60. 1-8-12. Debugging Method (Digital TR(NPN))
60
Componen
t
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
Q1 C-E 2V 0V 15 4~5 0.5V 0V 5 1 1~5 8
Q1 B-E 400Ω 400Ω 1 2 30 % -30 % 8 1
200Ω + 200Ω(R+R) = 400Ω

61. 1-8-13. Debugging Method (Digital TR(PNP))
61
Componen
t
Act
Standa
rd
Mode Range H-lim L-lim H-pin L-pin Ws G-pin
Q4 E-C 2V 0V 15 2~3 0.5V 0V 1 6 1~5 7
Q4 E-B 400Ω 400Ω 1 2 30 % -30 % 1 7
200Ω + 200Ω(R+R) = 400Ω