I recently aquired an Indigo 2. I can play for about 10 minutes or so before the sound turns into this high pitched, bitcrushed kind of sound. You can kind of hear the original patch in the background, but it's mostly just the high pitched sound. I can still switch between patches but all of them are the same, original patch in the background, but it's mostly just the high pitched sound. If I turn the Virus off and back on it's fine for another 2-10 minutes before it cuts out again. The seller claims it recently had a very extensive service including:
Capacitors replaced with high quality audio capacitors
key bed disassembled and cleaned
all switch caps and knobs removed and cleaned
Display replaced with high quality LED display
The contrast control for the new display is via a knob at the rear of the instrument, which makes adjustment far more accessible than the original menu diving.
Anyone have any idea what's going on?