Xpantastic!

--- In xpantastic@yahoogroups.com, vco3@... wrote:
>
> HI, I just started getting a failed PW   message on voice three on 
the 
> xpander. THe voice still sounds fine when I reenable it. IT is just 
a little 
> quieter.. I went thru a swapped all ics with the next voice over 
and the problem 
> still is on voice threee.. Any ideas of what it could be? thanks 
analoguejeff
>
Hi Jeff,

If you feel good about working on your synth/soldering etc. I beleive 
this is an easy fix. There are two bypass capacitors which each VCO 
voice signal goes through before going to the VCF. The Value is 
2.2uF @ 50VDC.
the part number for voice 3 is C533 and C537. They are located about 
1/3 of the way up the cicuit board. If these fail they tend to block 
the signal out causing lower output and tuning fails. If this does 
not fix it, replace C549 also a 2.2 uF 50 V electrolytic cap towards 
the bottom of the board. You may already know this but, these are 
electrolytic caps(look like little cans on the circuit board) They 
are polarity sensitive, so you can put them in backwards. There 
should be a minus ( - ) sign on one side to show correct orientation.

Best of luck

Karl