Hi I had recently found a TPS-L2 which was restored, played well until yesterday the left channel suddenly went blank . Both jacks shows the same problem. It’s not the Jack nor my headphone. What could be wrong? I can get both side working if I insert the headphone halfway but it sounds mono.
I'm not familiar with this model, but I can see in the service manual that it has an independent pcb for the jacks and the hot button. Maybe there is a cold solder joint or a wire not 100% connected from this pcb to the main board?
I found the problem, it’s a disconnected white wire below the head, I soldered it back and it’s working fine now.
