Need help with Multiplex + Daughterboard build

[Knut Koupee]

I don't see any solder bridges on the MP board or 3pdt board, and the wires between the two are going to the right spots. I'm at a loss for what could be wrong

Is there a way to verify if the IC's (TL072, PT2399) are dead with a multimeter? Is the H11F1 also likely damaged?

[gtr2]

Just confirming that you used a center negative power supply when you powered it up the first time.

If your in the US you could always send it to me to take a look.

Josh

[Knut Koupee]

Just confirming that you used a center negative power supply when you powered it up the first time.

If your in the US you could always send it to me to take a look.

Josh

Yup, used a standard "one spot" cen-neg. If you can PM me your address I'll send it over unless there is anything else you can think of I should check first.

Thanks