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.
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Re: Sony XK-R100 car audio preamp troubles
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.
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As hum is heard through its left channel winle playing CD only denotes that it origin is from the preamp: side of the circuit itself. If power ampifier has the trouble, the hum will be heard even when the CD player is not playing. When CD player switches on, the preamp: section gets the working voltage, and starts working, while it will be in dead condition when CD stops. So you shoud check all the smoothing capacitors of that side; I advice you to change all of them, since it is difficult to detect the faulty, if you haven't a multimeter which can mesaure capacitance. This must solve your problem. OK.
All i did was mess with the REM wire, and found out i had to hook the REM wire to the blue/white wire on the deck. Instead of the blue/white wire, i had it hooked up to the solid blue wire on the deck which was preventing my amp from playing on CD.
Hi juicer, If you use the switched outlet, then everything will be turned on/off when you operate the preamp power switch. Use the unswitched, then you have to turn off each unit separately. You choose which one you want. It wont matter.
What connection do you intend to use to connect the LBT zx6 to the Onkyo preamp??
Try to boot into Safe Mode (windows 7: press F8 on boot, or Win10: start: type msconfig, enter, then boot tab: [x] Safe boot, press enter). It will be more successful more often in Safe Mode, but whether you can get into Safe Mode or not, click Start, type System Restore, press enter. (You may have to go to System Properties: System Protection tab, then System Restore.) When you restore to a previous restore point, you may find the weirdness to go away. If your problems are due to malware having been installed, you may have to choose restore points further and further back in your restore point history until you get back to before the malware, then the badness goes away. System Restore does not affect your data, only the Windows files.