Boss DD-2 dry signal only. Dead IC?

[maximee]

Oh boy. After getting my old DD-2 pedal to power up and running again  I decided it would be a good idea to mod it since it's already in my workbench.
I successfully did the hi cut mod and really liked it. Last night I did the really cool HOLD mode hack Processaurus came up with.

It was all working fine and I was playing around with the different HOLD mode settings with the DD-2 still open. I don't know exactly what happened then, the PCB might have shorted out to the enclosure or the +9V might have touched the circuit somewhere it's not supposed to... you know, in the DD-2 there are LOTS of wires. In short: I was being a little bit too excited and might have fried the effect accidentally.

Now I have no FX signal anymore. The pedal powers up just fine, my +9V and +5V power is there, the LED works but only dry sound out of both outputs.
I probed around the board with my audio probe to see if I can find an FX signal, but had no luck. Wiring seems ok, nothing came lose.

How can I tell if I fried my big 64 pin master IC?
Does anybody have a service manual with test voltages?

Schematic is here.

Right now I feel like a total *&^*&^ but at least I learned a lesson so far that IC stuff may be not as forgiving as your average booster build.  

[Johan]

the link to the schematic says forbidden..?..
but if it's like a DD3, check the wire and break function of the "stereo" jack ( the one below the input)..if it's "open", that might be where your repeats are sent..

j

[maximee]

This link should work:  Boss DD-2 Schematic
The Boss DD-2 is just like the DD-3. Only the naming of the FX-only output jack is different.

Thanks for the reply. As stated, I get the dry signal on both outputs. It is not the jack or the wiring.
Also, when I probe at the Level or Feedback pot (where I should be able to hear the repeats) there is no sound.  Bad.