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JVC R-X500 Receiver Popping on left channel.

Master of Resonance's picture

Help, I have a JVC R-X500 that pops on the left channel when warm. Not the speakers, happens on any source. I downloaded the tech manual from here but it has no schematic for the power amplifier board. So many caps and / or transistors to change before this becomes too expensive.



Master of Resonance's picture

Re: JVC R-X500 Receiver Popping on left channel.

Thanks for the suggestion. I will take a look.

Re: JVC R-X500 Receiver Popping on left channel.

That receiver uses ICs for pre-amps (looks like two STD-250 (?), IC 703 and 704). I would look there first; could be just bad connections on the pins, or anywhere around that area. The service manual is here on hifiengine (low res). One of those ICs may be breaking down, or it could be a transistor failing.