Joe,
Yes, I tried another speaker, one from ERR that came with one of the kits I have installed. The original in the F3 A unit is labeled 8 ohm, 12V. I have another MTH speaker, from a diff PS1 conversion to ERR, and it is labeled 8 ohm, 6.8V. I too wondered whether the speaker may have caused a problem with the RS board, and trying a new ERR speaker has no response from the RS board. I am thinking of opening all the ERR conversions I have done and making a listing of all engines and what components are within (size speaker, Rail Sounds version, R4LC/R2LC, etc.) as this would be great to refer to and save a lot of having to remove shells. Still thinking of need to replace the RS board, next purchase with other ERR commanders. But, first have to find time and going to put my last Cruise Comm M into the K Line Rock Island E8 AA set. Use these to pull my 13 car K Line 21" CZ consist, and having cruise would be a great benefit.
Jesse TCA
