Daewoo DV-K580NZ-T ユーザーズマニュアル

Power compensation 

does not operate.

NO

YES

YES

YES

When mains is unplugged, 

is 3.6V at pin 26,pin 81 of IC501?

Check C548, C523, 

C547, C524.  

NO

Is (sine) signal applied to 

 pin 42 and 43 of IC501?

Check X502.

NO

Is 5V at pin 37 of IC501?

Check reset circuit 

Of IC503.

Check IC501.