YOU CAN GET SERVICE MANUAL FROM HERE
electrotanya.com
http://elektrotanya.com/pioneer_vsx-d510-rrv2439_av-multi-channel-receiver.pdf/download.html
the amp is going into protection mode ...normally one of the amplifier modules are faulty..check for DC on speaker outputs just as you turn on from standby...find the 1 with dc on it normally .identify amp module from manual change modules ic ..jod done...sounds simple put it isnt...yammandan
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