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5 Troubleshooting
PN22N*
5-7
5-1-12 V Size or Pos. Variation Failure
ICS202 Pin 23 output varies with
different DAC values?
Yes
Check some parts around ICS202.
Check bias voltage.
IC301 Pin 6 output varies with
different DAC values?.
No
5-1-13 High Voltage Failure
Q524 Drain driving pulse exist?
Check +12 V line.
Check and replace Q522, Q523,
Q524, and IC501.
Yes
No
Done
16
29
29
Q524 Drain
CH1 RMS = 207.2 V
Check and replace some parts
around IC301 check bias voltage.
No
Done
Yes
16
ICS202 #23
CH1 RMS =3.668 V
Содержание PN22N series
Страница 2: ...Samsung Electronics Co Ltd October 2000 Printed in Korea P N BH68 00362A 01 ...
Страница 18: ...Memo 4 Alignment and Adjustments 4 8 PN22N ...
Страница 38: ...PN22N 6 1 6 Exploded View and Parts List PN22N ...
Страница 39: ...Memo 6 Exploded View Parts List 6 2 PN22N ...
Страница 40: ...PN22N 6 Exploded View and Parts List 6 1 Front Cover CRT Ass y 6 3 ...
Страница 41: ...6 2 Chassis Stand Ass y 6 Exploded View Parts List 6 4 PN22N ...
Страница 42: ...6 3 Rear Cover Ass y 6 Exploded View Parts List PN22N 6 5 ...
Страница 83: ...Memo 8 Block Diagrams 8 2 PN22N ...
Страница 84: ...9 Wiring Diagram PN22N 9 1 9 Wiring Diagram ...
Страница 87: ...10 Schematic Diagrams 10 3 PN22N 10 3 D Convergence Purity Part Schematic Diagram ...
Страница 93: ...10 Schematic Diagrams 10 9 PN22N 10 7 Purity Parts Schematic Diagram ...
Страница 97: ...10 Schematic Diagrams 10 13 PN22N 10 9 DSP USB Part Schematic Diagram ...
Страница 98: ...10 Schematic Diagrams PN22N 10 14 Memo ...