Question about Pioneer Audio Players & Recorders
SOURCE: MOTHERBOARD REPAIR
First off, is the motherboard actually the problem? If your motherboard has failed, the screen may come on and you may have some sort of raster (brightness) but thats as far as you get. Power supply failure is (in my experience) more common than mother board failures (usually) and may exhibit the same symtoms. Also a bad battery on the motherboard will cause funky things to happen on boot. (clock not right/failure to recgonize hard drives, etc). If you are certain a motherboard is a fault you should replace it ( unless you are VERY fluent in soldering/desoldering surface mounted components and component level repair and have a solid understaning of digital and D.C. circuits) More often than not, replacing the entier motherboard is cheaper and less of a hassle.
Posted on Sep 13, 2008
In my case, if I push in on the balance knob, I can get the channel that quits to work for a while.
This leads me to believe that the pot is dirty as opposed to a circuit or component failure.
A couple of years ago, I sprayed circuit cleaner into the pot as best I could and the problem disappeared but, it has returned.
My next attempt will be with one of the newer cleaner/lubricators that are available now.
I don't know if this will solve your problem but, it might be worth a try.
BTW, getting access to the volume/balance pots takes some doing. As long as you are there treat both pots.
Posted on Sep 22, 2008
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