Troubleshooting - Samsung CT2088BL6X/XAP Service Manual

4. Troubleshooting

4-1 No Power
Abnormal
Check and Replace
D801S ~ D804S
Samsung Electronics
OFF
Normal
Check
Fuse.
Abnormal (0 ~ 15V)
IC801S Pin 3 B + .
Check/Replace
D806, Q401, Q801,
D802, D814*
Abnormal (0V)
Check IC801S*
Check/Replace
PC802
No Power
Check LED when AC
code is plugged.
Check
IC801S Pin 1
Oscillation.
Abnormal
Check
Normal (15~20V)
Normal (0.5 ~ 3V)
Pin 4 Voltage
Check/Replace
DZ802, D806
ON
Check IC802.
Abnormal
Check/Replace
IC802, R812, D856.
Troubleshooting
4-1