[sdiy] Tantalums in Yamaha CS20M/CS40M

[Bob Weigel]

Yes.  Old tantalums regularly short and in fact one did so in the cs60 I 
got..and I believe another CS20M I'd repaired.  The one I use had a 
problem in the regulator where it overvoltaged and blew up several other 
chips including VCA's.  BUmmer. -Bob

David G. Dixon wrote:

>Why would they blow up if they were installed in the right direction?  Do
>old tantalums (tantala?) simply blow up on a whim?
>
>  
>
>>-----Original Message-----
>>From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
>>bounces at dropmix.xs4all.nl] On Behalf Of Gil W.
>>Sent: Wednesday, June 10, 2009 11:52 AM
>>To: synth-diy at dropmix.xs4all.nl
>>Subject: [sdiy] Tantalums in Yamaha CS20M/CS40M
>>
>>
>>I open up my monstrous CS20M (and my friend's CS40M), and I see a lot of
>>tantalums in there. Before one blows up and shorts the thing, do you think
>>it will be safe or wise to replace them all with a similar valued
>>electrolyte ? Will the sound get worse a bit ?
>>
>>Particularly the power supply... There are four 1uf/35v tants in there,
>>can I just drop 1uf electrolytes instead of them ?
>>
>>Thanks ;)
>>
>>
>>
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