Question about JVC RX-9010V Receiver

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JVC RX-9010VBK receiver - premap section won't turn on normally

A friend gave me a JVC RX-9010VBK DTS/5.1 surround-sound receiver that's a few years old. I carefully read the manual, and it seems to have an odd problem that is getting worse. When I turn it on from cold, either by remote or front panel, I hear a couple of relays click and it powers up, but there is no sound from any of the source inputs. When I first got it, I would just turn it off and on again once, and it would play. Now, however, I have to repeat this 5 or 6 more times to get it to play. When I use it for a little while after it turns on okay, and I then turn it off and on again, it powers up fine. However, if I wait a half hour, the problem returns. I can hear residual hiss when I turn the volume way up, and a slight thump when I switch between sources. I also tried using headphones with the speaker outputs off, but no still no sound. So, it seems that the preamplifier stage is not powering on, but the power amps are okay ("protection" does not come on). And, the display shows "tuned/stereo" with the tuner and goes on and off normally when I switch stations. I'm somewhat handy with fixing basic electronics, so I really could use an opinion as to where to start looking in the circuitry (bad capacitor/regulator somewhere?). Thanks!!

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  • Gregory Herigodt May 29, 2009

    I opened the unit, disassembled much of it to check the connections and even beefed-up some of the solder connections near the heat-darkened circuits near the voltage regulators. Not fixed, so I suspect it's a failing regulator. I'll live with the issue for now. Mr. Greg.

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It sound like a bad connection. The first thing that I would do is tighten all the ground screws that hold the circiut boards and the heat sink to the chassis. If that doen't fix it, flex the circuit boards slighty to see if the relays chick on and off (disconnect the speakers first). It could be on the input board, on the relays themselves or just about anywhere.

Posted on Feb 01, 2009

  • ngc6960 Nov 16, 2010

    If you didn't get it fixed I wold buy it from you? ngc6960@charter.net

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