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RE: Power-on funtion of amplifier on the fritz.

Posted by AJ on July 14, 2017 at 07:05:07:
I would also check for dc offset at the speaker terminals. put your MM on dc and on the lowest range, let the amp warm up and then take a measurement at both terminals..

Should be less than say 20Mv this may be a dc offset problem certainly from the first episode it is suspicious. Other than that it could be anything like high ESR caps shorting the supply , failed rectifier or bad relay or latching cct for the relay soft start.

Needs a tech