[sdiy] Prophet 5 question

[Karl Ekdahl]

> have a photo?

http://www.sdiy.org/knas/temp/IMG_3828.jpg

> sure you didn't put a cap in backwards.... :-)

Yeah...  it didn't work once powered on and it's apparently been sitting in a closet for 10 years so after noticing it not working i immediately found that the PSU was being shorted by this PCB so i replaced the caps... no backwards caps.

Karl


> 
> 
> -----Original Message-----
> From: synth-diy-bounces at dropmix.xs4all.nl
> [mailto:synth-diy-bounces at dropmix.xs4all.nl]
> On Behalf Of Karl Ekdahl
> Sent: Wednesday, April 01, 2009 11:01 AM
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] Prophet 5 question
> 
> 
> Hi list, working on a faulty Prophet 5 which has a short on
> the +15V supply
> somewhere on the CPU board - i notice that there's some
> kind of white
> power-rail distribution tab that runs about 2/3 of the
> upper PCBs, question;
> is it a bad idea to desolder this entire thing? It seems
> like it'd be so
> much easier to find the faulty parts if the different parts
> were separated
> this way. And yes, i have replaced all Tantalum caps on the
> board and
> reseated all ICs.
> 
> Karl
> 
> 
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