Question about JVC RX-1028V Receiver

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Stopped working The unit was on and just stopped; it never went to read "overload" on the readout. Power remained to the standby switch but the LCD readout was off. Replaced blown 6.3 amp fuse but dead short on start. Disconnected 3 wire (2 grey; 1 orange) power supply plug from audio power transformer to the "main circuit board"; this brought the LCD panel back; but has dead short when power supplied to main board. Thanks in advance; Steve

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  • stevewa Feb 02, 2008

    Thanks cowpoker!

    Upon complete visual inspection; searching all components for the obvious burnt up device; I dont see or smell any problems.

    I feel that one or several of the channel amp outputs are bad as you say.

    How to determine the problem if I see no visible damage?

    Thanks again; Steve

  • stevewa Feb 02, 2008

    Best source for a DETAILED troubleshooting / service manual? JVC or others suppliers?

    Thanks

  • pesmith Mar 04, 2008

    I found two 2 amp fuses blown on the power transformer board. I'm not sure what they protect, any help will be appreciated.

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I had a similar problem with a jvc 8040. when I replaced the fuse it became very obvious that the b1560 output on the center channel was blown (smoke and sparks, always a dead giveaway). I haven't fixed the center channel yet but simply unplugged the center channel board and removed it from the unit. Now everything works fine except of course the center channel. Pre outs still operate just fine so a slave amp could be used for center channel power, or you could just go and buy a marantz amp; I did and then I realized that I was lucky that the old jvc quit.

Posted on Jan 30, 2008

  • cowpoker Feb 03, 2008

    Steve: I'm not sure what the best source for a troubleshooting guide would be. I know that if you google your 1028 there are websites that appear to offer a service manual for it. I have always had best luck with asking a local electronics guru, unfortunately my guru retired. I tried to take my jvc to another local guy but he turned me away. He said that jvc's weren't made for working on. Therein lies the problem, it's to expensive to get them fixed, but you hate to just toss them.
    I will tell you what I would do, it sounds pretty caveman but most of my stuff does. I would start pulling the channel boards out of it, starting with the front mains. Power unplugged, pull a board, power it up if it doesn't power up replace the board and move to the next one. The problem is that those bottom outputs are a little hard to get to. luckily they're not normally very tight. At least then you will know which channel is bad. Assuming this works and you get the amp to power back up you have the choice of running a slave on the pre-out of that channel (if you have pre-outs), or trying to replace the outputs on that channel. Always replace both outputs, they're only about 3.50 each from acme. Problem is, nothing says this will fix it. I just got done putting both outputs on my center channel last night. Now the center channel works but it is raspy. Probably something to do with the smoke and sparks that I let out of it in the first place. I may try to go in and find something else ( poke at it with a stick ) or I may get an ma-500 to run on the pre-out o the center channel.
    I hope I've been of some assistance or at least entertaining. Or maybe someone who really knows what they are doing will see this posting and tell you to ignore that idiot and then tell you how to solve your problem.

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