Power on problem

I was playing a cd at low to medium volume. Heard a slight pop and receiver kicked off to a flashing red light. I assumed that the speaker protection circuit was at work here. I unplugged the unit and checked all speaker connections. Upon powering up the unit. The led power button was flashing green then kicked off to a flashing red. I had disconnected all speakers from the unit. And it still kicks off to a flashing red. Any suggestions?

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Anonymous

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13 Answers

If your amp looks like it's going to work as normal (ie the front display lights up as it should etc), but then the amp goes into protection mode when the anti-thud circuit times out, then I know what's likely to be wrong.

It's one of the power amplifier channels which has gone faulty.

I just found this out after having this problem with my AVR-1906.

I took the amp apart and de-soldered the suspected channel power transistors (centre channel in my case).....and hey-presto! it fired up as normal (obviously the centre channel would be out of service).

I have ordered the replacement transistors from Farnell (UK) at a miserly cost of around £2-£3 each.

Just waiting for them to arrive.

An alternative is, if you don't use all your channels, take the transistors from a known working but not needed channel and swap them over with the duff ones.

Hope thats of use!

Posted on Aug 16, 2008

Michael Borelli

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979 Answers

Time for a little repair here. It seems that one or more channels have developed an excessive drain on the supply, and has caused the threshold to trip and shut you down. It's more than likely shop time at this point....accordianman

Posted on Oct 25, 2007

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