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5. Thoubleshooting
Samsung Electronics
No power
PF01
Error?
Yes
PD01
voltage is miss-
ing?
No
PQ(FET) D-S
voltage is miss-
ing?
Yes
6pin voltage
exists in PIC1?
Yes
Pulse is missing
in PIC1 5?
Yes
Replace PQ1(FET)
No
Replace fuse
Yes
Check PR10
Check 2d voltage
Yes
Check PR11, 12, 13, 14
Replace PIC
Check feed back.
5-1
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