Xpantastic!

Hello takisdamaschis,

When you say output capacitors, are you talking about the small 2.2uF
Cx49 at the edge of the voice board? There is one for each voice.
There is also one of these at the output of each VCO feeding the VCF
If these go you can have tuning problems. Also, try resetting the 
software.( hold sown clear and turn power On)

Karl


--- In xpantastic@yahoogroups.com, "takisdamaschis" 
<takisdamaschis@...> wrote:
>
> Hi everyone, my xpander seems to fail the VCO tune test randomly!some
> voices fail during one test and pass on the next! there is no
> cosistancy on the voices that fail,it can be any one of them!Some
> times(rarely) the vco test passes! I have the same problem sometimes
> with the Resonance and VCF but not as often!
> I have totally rebuilt the power supply,changed the battery and output
> bypass capacitors!All currents measure right so this is not a voltage
> supply problem!
> The only other part I can think of is the DAC or maybe the Timer?
> Any thoughts?
> Takis.
>