Samsung CK564BZR1X/BWT Service Manual page 27

Troubleshooting
5-2 No Power
5-2
No
Check the 130/155V,
13.0V B + Lines
Yes
No
Check IC804
Pin 9 (5V)
Yes
Check IC901 No
Pin 16 (4V).
Yes
Check IC901
No
Pin 18 ; Stand-by : 0V
Normal : 5V
Yes
Check IC201, No
Pin 40 (H-out)
Yes
No
Check Q402, Q403
Check/Replace
IC801, D802
Check/Replace
IC804 (KA7630), DZ905
Check/Replace
IC901, DZ903, DZ803
Check/Replace
IC901(µ-com)
Check/Replace
IC201, Q402, Q403
Check/Replace
DZ805, IC802
Samsung Electronics