[sdiy] LinnDrum LM-2 power supply stuff

[Gil W.]

Maybe you should try to refurbish it all, before even trying to check if it works. Clean all the corrosion and acid out, cut defected traced and hard wire them. Replace all caps, and other components if they look bad. Only then check for how it works...

 
--- On Wed, 8/10/11, Eric Frampton <eric at ericframpton.com> wrote:

> From: Eric Frampton <eric at ericframpton.com>
> Subject: [sdiy] LinnDrum LM-2 power supply stuff
> To: "SDIY" <Synth-diy at dropmix.xs4all.nl>
> Date: Wednesday, August 10, 2011, 2:30 AM
> Hi all -
> 
> I've just inherited an LM-2 LinnDrum. That's the good news.
> The bad news is, the NiCd's leaked all over the power supply
> board and the transformer. Luckily none of the other
> electronics were touched, but the power board is pretty well
> melted and there's corrosion halfway up the side of the
> transformer...
> 
> Is there a universal way to test an xformer, aside from
> powering it up (a dodgy proposition by the looks of this
> one) and measuring voltage? Perhaps I could salvage that
> much and then come up with another solution for the PSU
> board.
> 
> Or. maybe just find a switched-mode supply that will fit in
> there? The unit needs +/-5V and +/-15V - nothing esoteric as
> best I can tell - but I don't know what the current needs
> are.
> 
> Thoughts, suggestions?
> 
> e
> 
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>