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5 Troubleshooting
PN22N*
5-11
5-1-19 OSD Failure
C312(–) input is right?
T402 Pin 10 input is right?
Check and replace Q101.
Yes
Yes
No
Check and replace D301 and Q301.
No
IC103 Pin 7 and 8
inputs are right?
Check IC201 Pin 41 and 42
ICS201 Pin 16 and 17.
Yes
No
IC103 Pin 20, 21 and 22 outputs
are right?
Check and replace IC103.
No
Check and replace IC101.
Yes
Done
Check CN204 and connector Ass’y.
24
24
C312(-)
CH1 RMS = 4.28V
19
48 49
WAVEFORMS
19
T402 #10
CH1 RMS = 11.52V
49
IC102 #21 (=IC103 #8)
CH1 RMS =4.064V
48
IC102 #20 (=IC103 #7)
CH1 RMS = 3.664 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 ...