Synth-DIY Yahoo! Groups Archives

HEY IF IT Works then its ok.I think this blog is just about the wierd stuff we encounter. I had a church organ that had a mouse eat the capacitors along a shelf in the organ that required 30 oscillator capacitors being replaced,he chewed his way across the whole shelf and ate all 30 capacitors untill they all were unusable,I had another repair that was very hard to find,but I was lucky to find this one,there was a high pitched cipher in the organ that seemed to be comming from the rhythm circuit board,I checked the whole circuit but couldn't find any problems,finally I figured that the only way this cipher could exsist is by a connection from one IC to another,since there was no physical connection on the circuit board I got to thinking about the mouse that had been in the organ,mice pee constantly as they are walking,this mouse had pee'd on the circuit board making an invisable connection from one IC to another,a spray of contact cleaner on the circuit board fixed the problem,time to repair 2 hours.another invisable repair I had was a church organ that had a problem with the stops not working correctly,the memory battery was mounted above the stop circuit board and the batteries were leaking but left an invisable trace from the batteries to the stop circuit board,once the batteries were replaced and the stop board cleaned the problem was fixed,so always look for the impossible.

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a shelf > To: vintagesynthrepair@yahoogroups.com
> From: arto.koivisto@...
> Date: Fri, 7 May 2010 08:53:10 +0300
> Subject: Re: [vintagesynthrepair] Re: dumbest repair job ever
>
> > Oh, and I've recently seen someone put a IC-type opamp where a metal can one should have been.
>
> Without wanting to interrupt this thread of entertaining repair stories
> (more please!) too much, does this can<->DIP substitution make any
> difference in a functional sense or is it more of a "look thing"?
>
> I'm wondering because when repairing my whiteface Arp Odyssey, I had to
> go for a DIP CA3080s. Just a matter of what was at hand really and given
> their in-circuit use (S&H / VCA) I couldn't think of a reason why it'd
> make a difference. For these, I attached a DIP socket to the PCB as
> close as possible to the original part and connected it to the board
> with a piece of flat cable. This is f.ex. what it looks like on board C:
>
> http://kewlers.scene.org/bitchard/diy/Odyssey/17.jpg
>
> I'm working to port the build log from the above url to my blog, but
> it'll take some time. ;)
>
> .Arto.
> --
> My DIY blog http://amazingdiy.wordpress.com/
> Little Bitchard http://kewlers.scene.org/bitchard/
> Outer Space Alliance http://www.holyfeather.com/outerspacealliance
>
>
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Vintage Synth Repair

RE: [vintagesynthrepair] Re: dumbest repair job ever

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