Gut shot before I explain what was wrong wit this unit:

OK, well, this unit had the input/output jacks replaced and not wired properly.

Here’s the input jack. The tip was connected to ground, ring to the input and the sleeve to the switch. Tip should have gone to the input and switch. The ring is reserved for the battery so that when no plug is installed then the pedal doesn’t draw any current. The sleeve is obviously ground.

The output jack was the same deal. Most of the leads on these wires were really close to snapping so they were repaired properly. The battery clip needed to be replaced too. This is how it came out:


And done!