Matery training ICT ( IN Circuit Test Machine)

Measurement Theory of ICT

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(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 planeAnalog line

• 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.

ADC Current Meter

50nA F.S -> 50mA F.S

Rx = 0.3V / I(Meas)Measure Range : 7 ohm ~ 26.1Mohm

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

Basic Circuit Drawing

4

• 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 0.4VV

Volt Meter

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


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

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


6

VC

VR R

C

tm T

V

(Measuring time)

DC Constant Current1

I = 1uA ~ 100mA

H

L

(6 Range) max 0.4VV

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)

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


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DC Constant Current

I = 1uA ~ 100mA

H

(6 Range) max 40V

L

V

Volt Meter

D10.7V

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

• 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

ZD120V

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.

core

4-3. Applying Constant Current => Diode testing by Voltage Measure [MODE – 10]Measure of IC lead’s Open

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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.

Back planeAnalog line

Fixture

(H)

(H)

(L)

(G)

(G)(L)(H)

(2)

(1)

(128)

(L)

(G)

I = 1[mA] *FixLimit 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)


I=1[mA]

DC 정전류

(G)

V

Volt Meter

RY12A

RY19A

DC Measure B/D (DYM-5100E)

RY7A DC Constant

Current

I=1[mA]

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

470H

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

(H)

(L)

(G)

Back planeAnalog 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]


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Act:2V Std:0.1V H-limit: 0.5V L-limit:-0.5V

H: 3, L: 2, G0: 1

Mode 15-4 (1mA)


I=1[mA]

DC-CC

(L)

(G)

V

Volt Meter

RY12A

DC Measure B/D (DYM-5100E)

RY19A

RY7A

DC-CV

3.15V

470RY1A

• 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 ~ 62Ω3 – 1 : 51Ω ~ 620Ω3 – 2 : 510Ω ~ 6.2

Rx = 0.3V / I(Meas)Measure Range : 5.1 ohm ~ 6.2 Kohm

• 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 Voltage1Phase 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

• 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

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


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

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BASIC BASIC TRAININGTRAINING

BASIC BASIC TRAININGTRAINING

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1. Equipment 1. Equipment DescriptionDescription

1. Equipment 1. Equipment DescriptionDescription

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Analog Meter of Tester is equal to Monitor of I.C.T

1-1. Display

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1-2-1. Mode-Range

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

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Test Point Mode NoteMeasuring

Method

Resistor1

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

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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

Leads of Tester are equal to pins of fixture

1-3-1. Fixture & Test pin

25

1-3-2. Fixture & Test pin

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Leads of Tester are displayed as H-pin and L-pin of Data program

3 2

1

4

L-pinH-pinComponentsStep

1-3-3. How to assign Test Pin Points

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21R115

43R74

43R63

31R42

23C41

L-pinH-pinComponentsStep

A pin is assigned basically in a pattern

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.

R2R1 R2R1

Tester measures R1 Tester measures R2


29

Tester has to move leads to measure R1/R2 however relay does same job in I.C.TWithout moving

R2R1


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SDP-1100 : Relay Board

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

1-4-5. Connecting 100pin Connector to Relay board

32

SDP-1100 SUB Connector

R2R1

1-4-6. Fixture

33

Leads of Tester are partially considered Fixture

36

1-4-7. Connecting 100-pin Connector to Fixture

34

2

1

5

4

3

III9

III

102

3

2

1-4-8. 100-pin Connector Pin Number Arrangement

35

1

97531

108642

2

1

1

36

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

1 2 145 7 9 11

2 2 146 8 10 12


38

Pin No. is Fixture’s Pin number

1 2 145 7 9 11

2 2 146 8 10 12


39

Relay 7,9,11,8,10,12 of Relay Board have problem

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

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 are When both ends of leads of Relay are checked. If it is short, Relay is bad

42

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)

DYM-9916 : CPU Board

DYM-5100 : DC Measure Board

DYM-4062 : AC Measure Board

1-5. Measure board

44

45

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)

1-7. Power

47

⇒ ⇒ ⇒ ⇒220V ⇒ SMPS ⇒ System Rack ⇒ Measure Board & Relay Board ⇒ Fixture

1-8-1. Debugging Method ( over 100Ω resistor)

48

Component

ActStanda

rdMode 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.

1-8-2. Debugging Method (less than100Ω Resistor)

49

Component

ActStanda


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

1-8-3. Debugging Method (VR)

50

Component

ActStanda


R31 kW

500W 1 - 50 % -50 % 6 7 5

※ If pin# 5 is set up as G-pin, more stable measurement can be achieved.

1-8-4. Debugging Method (Capacitor(c))

51

Component

ActStanda


C1 100nf 100nf 7 - 30 % -30 % 1 7

※ If pin# 5 is set up as G-pin, more stable measurement can be achieved.

1-8-5. Debugging Method (Capacitor(c))

52

Component

ActStanda


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 .

1-8-6. Debugging Method (Capacitor (C))

53

Component

ActStand

ardMode 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

1-8-6. Debugging Method (Diode)

54

Component

ActStanda


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 beappeared so that reversed mount is found.

1-8-7. Debugging Method (LED)

55

Component

ActStanda


LED1 2V 1.8V 10 5 30 % -30 % 9 1

1-8-8. Debugging Method (Zener Diode)

56

Component

ActStanda


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

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1-8-9. Debugging Method (Coil)

57

Component

ActStanda


L1 10 uH 10 uH 9 0 40 % -40 % 4 3

1-8-10. Debugging Method (TR(NPN))

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Component

ActStanda


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

1-8-11. Debugging Method (TR(PNP))

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Component

ActStanda


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

1-8-12. Debugging Method (Digital TR(NPN))

60

Component

ActStanda


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

1-8-13. Debugging Method (Digital TR(PNP))

61

Component

ActStanda


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

Engineering

Matery training ICT ( IN Circuit Test Machine)