ERR Railsounds Commander, No volume

Highly doubting it's the board. It produces sound, just not volume. More likely, I would be betting on damaged pot, or bad speaker. Again, the amp is working, just not producing the desired volume.  Speakers can and do fail with the voicecoil jammed or stuck on the pole piece of the magnet, and pots can fail. Since you have some sound, move the pot to the middle position. If that doesn't improve the situation unplug and measure the pot- which should be 10K. If in the middle, the wiper should be roughly 5K from both ends. Just because you could faintly hear sound from that speaker does not mean that the speaker cannot be bad, but it does indicate the board was trying to work.

Jetguy posted:

Highly doubting it's the board. It produces sound, just not volume. More likely, I would be betting on damaged pot, or bad speaker. Again, the amp is working, just not producing the desired volume.  Speakers can and do fail with the voicecoil jammed or stuck on the pole piece of the magnet, and pots can be miswired or fail. Since you have some sound, move the pot to the middle position. If that doesn't improve the situation unplug and measure the pot- which should be 10K. If in the middle, the wiper should be roughly 5K from both ends. Just because you could faintly hear sound from that speaker does not mean that the speaker cannot be bad, but it does indicate the board was trying to work.

I switched out speakers.  I may try to jump out the pot or attach an external pot to try that next.  Thank you for the input.  

Also, I didn't think volume setting from TMCC persists through power cycles but are you running TMCC or only conventional? Probably a red herring, but just something I didn't catch from the original question.

Actually, on the new ERR RS-Lite boards, the command volume will persist through power cycles, just tested it on the bench.