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Vintage Synth Repair

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Re: [vintagesynthrepair] Prophet 5: -15v voltage rail is shorting...

2007-11-04 by scott frye

Tantalums are not at all forgiving in a reverse bias OR over-voltage setting.
Remove the cap and see if you actually have a short circuit first. Then make sure the voltage ISNT more than the cap rating. Otherwise it's POOF again.

gil_we wrote:
Hi all,

I'm trying to solve a problem with a P5 I just got.

It looks like the -15v rail on the main board is shorting.
Each time I'll power it up, the 10uf tantalum capacitor which filters
the -15v is getting fried and open (shorting) immediately.

Any ideas where to start looking at ? Any common parts on the P5 with
are known to short over time ?

Thanks for the help !




Scott Frye
AudioFixation
Consumer / Pro Audio Repair
Southern VT

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