Schematic for DigiTech vx400?

[Paul Marossy]

I have one on my bench that belongs to a friend, it has an unresponsive 1/4" instrument jack. I took the unit apart to verfify that the jack is good, can't find any problems there. So I assume it's due to some component on the circuitboard. Anyone ever see a schematic for this unit?

[Paul Marossy]

I think I might do an audio probe on it, but then again it doesn't seem worth the trouble. There's a million tiny SMD parts on that board and without a schematic it seems kind of futile trying to fix this thing.