On 12/22/2024 6:49 PM, M De Simone via Jukebox-list wrote:
Today I went (as promised) to a friends place to see if I could get his wallbox working again and spent much time with some success, the previously rebuilt TSR1 and stepper is working now but seems to pick up all numbers in a particular letter group. For example selecting L4 will play all L selections. It also trips immediately when a selection is made. It was getting late in the afternoon and I couldn’t figure it out so left it until I could get some advice. So here I am, What would cause this issue? Thank you, Mauro
That sounds like a poor ground between the pulse amplifier and the tormat unit. Usually at the RCA jack on the selection receivers pulse amplifier. Normally cleaning the RCA jack and socket will fix it, but if not, you can add a wire from the ground on the selection receiver (use existing screws) to the tormat unit.
I just noticed you said a "TSR1". They can be problematic but it still sounds like a poor ground.