Question about Yamaha P2500S Amplifier

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Protection of yamaha pc 2002

I have Yamaha power amp PC 2002 and one side stays under protection 10m more minits than the other side.After that amp works very well.Any idea or schematic for this model and also for model 2100 which gives me another problem.All regards

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Time delay... i dont know...seems unusual. the protection system of all yamaha PA and A/V is driven at teh same time not discrete so i dont understand why 1will be active earlier and the other delayed. in any case, a delay in relay activation is unstable center violtage or you are having an abnormal output stage, it is prducing more than 0.1 volts DC. this is primarily caused by unbalanced biased input initial stage of the main amp, voltage stability is not accurate. Or grounding getting poor.

redrivera

Posted on Mar 19, 2008

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Protect delay is in the relay and not adjustable as to delay time.
I would not worry unless no sound then may have to replace relay.

GOOD LUCK
BIG RED

Posted on Mar 04, 2008

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