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5 Troubleshooting
5-10
PN22N*
5-1-17 Micom Failure
+5VS line is right?
IC101 Pin 15 and 16
inputs are right?
Check X201, C204 and C205.
Yes
Yes
No
Check ICS204.
No
IC201 Pin 18 input is right?
Check IC202.
Yes
No
All in/output values are right?
Replace IC201.
Yes
No
Done
38
WAVEFORMS
38
IC101 #16
CH1 RMS = 1.644V
39
5-1-18 Sub-Micom Failure
+5VS line is right?
ICS201 Pin 14 is right?
Check X201, CS205 and CS206.
Yes
Yes
No
Check ICS204.
No
All in/optput values are right?
Replace ICS201.
No
Yes
Done
10
WAVEFORMS
10
ICS201, #14
CH1 RMS = 2.904 V
39
IC101 #15
CH1 RMS = 1.94mV
Summary of Contents for PN22N series
Page 2: ...Samsung Electronics Co Ltd October 2000 Printed in Korea P N BH68 00362A 01 ...
Page 18: ...Memo 4 Alignment and Adjustments 4 8 PN22N ...
Page 38: ...PN22N 6 1 6 Exploded View and Parts List PN22N ...
Page 39: ...Memo 6 Exploded View Parts List 6 2 PN22N ...
Page 40: ...PN22N 6 Exploded View and Parts List 6 1 Front Cover CRT Ass y 6 3 ...
Page 41: ...6 2 Chassis Stand Ass y 6 Exploded View Parts List 6 4 PN22N ...
Page 42: ...6 3 Rear Cover Ass y 6 Exploded View Parts List PN22N 6 5 ...
Page 83: ...Memo 8 Block Diagrams 8 2 PN22N ...
Page 84: ...9 Wiring Diagram PN22N 9 1 9 Wiring Diagram ...
Page 87: ...10 Schematic Diagrams 10 3 PN22N 10 3 D Convergence Purity Part Schematic Diagram ...
Page 93: ...10 Schematic Diagrams 10 9 PN22N 10 7 Purity Parts Schematic Diagram ...
Page 97: ...10 Schematic Diagrams 10 13 PN22N 10 9 DSP USB Part Schematic Diagram ...