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Troubleshooting
Samsung Electronics
5-1
5. Troubleshooting
5-1 No Power
Yes
No
No
Yes
No
No
No
Check the 135/155V,
13.0V B+ Lines
Check IC804
Pin 9 (5V)
Check/Replace
IC801, D801, F802
Check/Replace
IC804 (KA7630),
DZ905, IC901
Check IC901
Pin 18 ; Stand-by : 0V
Normal : 5V
Check/Replace
IC901, DZ903, DZ902
Check IC901
Pin 16 (4V).
Check/Replace
IC901(
m
-com).
Check IC901,
Pin 26 <H-SYNC>
Check/Replace
IC201, Q402, Q403,
DZ402, IC901.
Check/Replace
IC901
Yes
Yes
Yes
No
Check IC804
Pin 8 (8V)
Check/Replace
IC804, IC201,
IC701, ICS02
Yes