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5 Troubleshooting
5-8
PN22N*
IC102 Pin 15 input exists and
varies with different patterns?
Check and replace
QS204 and QS205.
Input full white pattern to monitor.
Yes
No
T501 Pin 8 output exists?
Check and replace T501.
Yes
No
IC102 Pin 15 intput exists and
varies with different patterns?
Check and replace IC102.
Yes
No
Done
5-1-14 ABL Failure
5-1-15 Dynamic Focus Failure
IC503 Pin 3 and CN950 Pin 11
output are right?
Check and replace ICS202 and IC950.
Yes
No
Some parts around Q551,
Q552, Q553, Q554, and
IC503 are right?
Replace failed part.
Yes
No
Some parts around T502 are right?
Replace failed part.
Check the connection between FBT
Pin 13 and CRT Socket PCB.
Yes
No
31
WAVEFORMS
31
IC503 #3
CH1 RMS = 1.770V
Check CN204.
Yes
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 ...