SOLVED LED won’t turn off!

[Jbanks]

Well this is a first. Everything else works fine in this Amentum boost that’s a combo with a SHO and a tone pot. But I can’t get the LED to turn off and on. It just stays on. Weird. I assume it’s a ground issue. I tried retouching the GND leg from the PCB to the D-board on the 3PDT.
Any other ideas what is wrong?
Thanks!

 

[Robert]

Temporarily disconnect the SW wire from either the main PCB or the 3PDT board.

If the LED is still lit there is a short of some sort on the effect PCB.
If the LED goes out there is either a short of some sort on the 3PDT board, or the 3PDT footswitch itself is bad.

If you have a DMM measure continuity from the Center lug to the Top and Bottom lugs of the 3PDT. (middle column)

When the effect is active you should have continuity between the Center and Top lug. (open between the Center and Bottom).
When the effect is bypassed you should have continuity between the Center and Bottom lugs. (open between the Center and Top).

 

[Jbanks]

Thanks for the help. That totally fixed the problem. DMM showed where I had flooded a top lug to a center lug underneath the board. All good now. And a very useful hint for troubleshooting LED issues in the future.