Question about GCX buffered Gutiar In/Out...

[simspace]

I just picked up a pre-owned GCX and GCP and I have a question about GCX buffered Gutiar In/Out...

When I use the GCX passive connection on the front and back panels direct to the amp, I hear my guitar.

When I use the buffered connection (guitar in/out) direct to the amp, I get no signal at all.

I've tried straight to the amp, through a loop, with the GCP connected and disconnected and still no signal.

I've read and re-read the manuals and I don't think I'm doing anything wrong. You have any ideas?

Thanks!
Chris

[unix-guy]

Funny, I just had the same exact scenario about 2 weeks ago. I wrote in to Voodoo Lab tech support and was told I needed to send the unit in for repair: $35 + parts + shipping both ways...

I opted to just use the passive connections

Kevin

[JohnClark]

You can check that the buffer's op-amp is seated properly in its socket, or check for any loose connections on the front panel jacks. But basically it sounds as if you bought a broken GCX. A dead buffer is not at all a common occurrence, which is why we would rather just see it for ourselves… we can get it fixed correctly the first time.

New gear comes with a warranty; Used gear comes with Vegas odds…

[unix-guy]

Is the op-amp easily identified on the PCB?

Thanks,

Kevin

[simspace]

K. Thanks for the reply John!

[JohnClark]

The op-amp is located on the PRE/PWR board, directly behind the front panel jacks... you can't miss it. Older units may have the op-amp soldered directly to the board.