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Newsgroups: sci.electronics.repair
From: PeterD <pet...@hipson.net>
Date: Sat, 06 Sep 2008 19:05:23 -0400
Local: Sat, Sep 6 2008 5:05 pm
Subject: Re: Roland HP-860 electronic piano has HUM
On Sat, 6 Sep 2008 14:36:12 -0700 (PDT), "Josh9.0"
<squalene...@hotmail.com> wrote: Sounds good. >No I haven't! >Thanks for the tip, and thanks for the quick reply! >I'll go and try it now. >It has a bunch of different voltages out, and they're labelled on the >PCB! >I guess I should look for ripple on what should be DC, right?? >Then trace it back to the offending cap(s). Ba-ding... Now I wonder why that voltage is low? Could it be, oh, >Then go buy some new ones of those only. >BTW: It has a main voltage going to all the keys of 46V which measures maybe... A bad filter cap? You must Sign in before you can post messages.
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