Ok, its something in the screw terminal for the connection of the tranciever, so it makes sense that it would loose connection every time I moved it a little. Still not perfect connection, but good enough that I could test that the Timer + reset / Timer + Av now works and the mute relay clicks when pressing the mute button in MCL2A mode, and works for PL when in MCL2AV mode. So I guees the replacement of TR100 and TR101 was the culprit, and the loose connction just confused me