Hello,

I am trying to diagnose a fault with an Aiwa P30 DC Stereo Power Amp. It is part of a mini separates system consisting of a separate tuner and pre-amp.

The power amplifier does not output any audio to the speakers from either channels. I have checked that the startup relay engages and both the positive and negative power rails seem to be OK?

Any other pointers would be useful.

Thank you.