Smps - Denon AVR-1912E3 Service Manual

6. SMPS

DC 5V is not output.
Is there damage in IC102
(TOP258MG)?
NO
Is the fuse (F100) blown?
NO
Does the jumper (D301) wire connected
to the PWB have disconnection or
contact?
NO
Is there solder short circuit in the PWB
board?
NO
Is there a damaged part?
YES
Replace the IC102(TOP258MG) and
D100/D101/D102/D104.
YES
Is there the damage in D100/D101/
D102/D104/C102?
YES
Repair the jumper wire.
YES
Repair the solder short part of the PWB
board.
YES
Check the damage of each part.
83
YES
Replace the damaged parts.
YES
Replace the damaged parts.