Yamaha DSP A3090 pt1 Power on Issues and Tear Down

Yamaha DSP A3090 pt1 Power on Issues and Tear Down
yet another stereo repair, problem with this one is powers down right after it turns on, on diag mode it displays DC PRT 0%, this one is going to be more tricky and might run a couple episodes, lets find out together what the issue is
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title and outro Stars by UnderwaterBeats
Chip by underwaterbeats
moonlight by underwaterbeats

[@maz4bz592]

Excellent video's. Thanks for sharing and helping us keep these great old amps running.

[@jomendez6929]

enjoyed your work

[@user-gg2ff8sf1q]

I sometimes hear the rustling in one of the channels. what it can be. thanks.

[@SparkysTechCorner]

could be a short, or one of the pots are out of adj