[sdiy] Jupiter 6 experts?

[Steve Lenham]

>> If you look at the JP6 schematic, there are separate +10V reference and
>> -5V supply rails generated for the OSC1s and OSC2s. I would speculate
>> that a failed 3340 is affecting the other OSC2s via one of those rails.

> The only thing that does not fit into this explanation: why are the
> VCO1's working fine, but VCO2's not?

Because, like I said, there are SEPARATE +10V and -5V rails for each 
bank of oscillators. So, for example, the +10V reference for all the 
OSC2s could be being dragged down to a lower voltage but the OSC1s will 
be unaffected. Check the schematic!

Cheers,

Steve L.