LED working in reverse

[nosamiam]

I built (and love) an AD-3208 recently. It's working fine except for one thing: when the effect is bypassed, the status LED lights and when the effect is engaged, the LED is dark. Can't figure it out! I've checked and double-checked my diode orientation, FET pinout, and component values (it's Millenium bypass, right?) and can't turn anything up. The only thing I can't check easily is the orientation of the LED itself because the leads are clipped to even lengths and the whole thing is encased in hot glue. But if the LED is oriented wrong, it shouldn't light at all, correct?

So anybody have any ideas what could be causing this? I used the FET called for in the schem/layout. Is it possible the FET's pinout is different from what I'm finding on datasheets, and will that cause reverse operation?

[nosamiam]

Also, I used the layout/schem from here:

https://www.generalguitargadgets.com/projects/20-modulationecho/48-ad-3208

[nosamiam]

AND I used this breakout board:

http://www.mammothelectronics.com/Wiring-Board-for-4SFS3PDT-Switches-p/1100-401.htm

Selecting 'alternate view' #2 shows labels for the pads.

[Jdansti]

The problem with the true BP board you're using is that some of the terminals are connected to each other. You just need "straight" (I don't know a better word) switching with none of the switch's terminals connected to each other.

DPDT
XX
| |
XX

or

3PDT
XXX
| |
XXX

No crisscross connections.

Do you have another switch that you could use for testing without the TBP board?

[nosamiam]

Ah, right. I don't have one, but I'm getting ready to order some stuff so I'll just get a lugged DPDT and go with that. Thanks for the tip! I can use this switch and board somewhere else.