Intelligent Relay Bypass Won't Turn Off

[EisengesisFX]

Remembered I had a spare board, ATTINY85 and relay for the Intelligent Relay Bypass and decided I wanted to have another whack at wiring it for the bypass switch of my Leprechaun.

It responds latching-wise as expected, and with the LED in unison...but the pedal remains on no matter what. What do I do from here?

If need be, I'm happy to wire the original 3PDT switch. The Intelligent Relay Bypass is more a Nice To Have.

Here are some pictures, apologies for my potato phone camera as always!

 

[EisengesisFX]

Bump! I swapped in a fresh EEPROM, reflowed the solder on both ends of the Switch and Ground connections of the daughter and main board, but the issue persists.

 

[jwin615]

Sure your footswitch wires aren't shorted? There's a lot of exposed wire at those points.

 

[EisengesisFX]

Sure your footswitch wires aren't shorted? There's a lot of exposed wire at those points.

I can reflow them some more, but the LED is working as it should (both momentary and latching) so I'd assume that means the input of the footswitch is being detected properly?

I've also trimmed down the extraneous wire at the In, +, - and Out solder points too.

 

[jwin615]

Is the TQ2-L2 functional on this board?
Build doc says TQ2-L but seems it would work, at a glance

 

[EisengesisFX]

Is the TQ2-L2 functional on this board?
Build doc says TQ2-L but seems it would work, at a glance

Pardon my inexperience, but how would I test that? I bought the relay and board well over a year ago, so I guess I just assumed the compatibility.

If I have to start over I'm happy to order some fresh Kemet relays + IRB boards + EEPROMs from Robert but I'm hoping I can maybe salvage one of the three from early 2025

 

[jwin615]

The L2 is a dual coil
That's your issue..
There's no power to unlatch it...

 

[EisengesisFX]

Lmao. OK, marking this thread solved! Thank you, @jwin615 .

 

[jwin615]

No problem
Sorry it wasn't simpler.