My JVC CA-HX-Z10 works just fine but the speakers tend to turn off. I unplug it for a couple of hrs and then plug it back in and it works just fine for a couple of minutes and then the sound just goes off....
This is a semiconductor or capacitor thermal problem. You will have to be able to get to the circuit boards. With a can of Electronic Cold Spray (freon), you turn the unit on until it heats up and the sound goes out. Then, try spraying transistors and components once at a time, until the sounds comes back on. This will be the bad part. You will have to unsolder it and take it to Radio Shack or electronic parts store, or possibly order one online (google the part number, or value on the capacitor, etc.). Problems like these are usually transistors, and they usually only cost a few dollars (maybe $25 at the most). Inspect solder joints to see if they're cracked, or discolored (indicating a "cold-solder" joint, which you can resolder with fresh solder applied. The hardest part of fixing this type of problem, is that you have to sometimes take it all apart to get at the back of the circuit board to unsolder the bad part. Take pictures as you take it apart- they will help you putting it back together. Good luck!
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