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Sony XK-R100 car audio preamp troubles

My Sony preamp started acting funny awhile ago, would turn off by itself after I would turn it on. It didn't matter if I was listening to a cd or the radio, the result would be the same. It was installed in a BMW325 with external amp and eq....have replaced with old Blaupunkd which works just fine so I've eliminated my wiring job as a possible culprit. Have searched google and there seems to be a site called Euras (?) that will give out info but you need to be an organization...they list a possible problem with the faceplate and bad onoff button...can you enlighten me? Don't want to trash player cause I've had it since new/great shape, would like to fix if possible.

Thanks
Bruce

Posted by mrorvis on

  • mrorvis Nov 06, 2007

    Will try your solution tommorrow and see what gives...just to see it power up would be a help!

    Bruce

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Ok, so you ruled out the wiring....that would have been my first suggestion. Even now, it wouldn't hurt to wire it directly to your battery (red and yellow wire on +POS and black on -NEG). You can also try putting some tape on the face plate to make sure it's not loose, let it run for awhile with a little tape on it and the car off and sitting still and see if it still shuts off.

If you have already tried these things and are still having problems, I believe the culprit could be a dirty or blocked intake fan. Make sure there is not a mess of wires blocking the fan, causing it to overheat. I hope this is a help to you.

Posted on Nov 05, 2007

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