Hi,
I have a problem in the floor board that I have temporarily resolved.
The volume of the amp goes down a few seconds after turning on the equipment.
Disconnecting the cable from RJ45 the volume appears again at maximum level.
As I work in electronics, I drew a diagram of the wha/volume board and took some measurements that led me to the conclusion that the photo diode M3 (volume control) was faulty.
I removed the photo diode M2 (wha control) and put it on M3, so now I have the volume but I don't have the wha which I use very little.
My problem now is that I don't know the reference of the photo diode to buy and put it on the M2 to have wha again.
Can anyone help me and provide a part list or schematic of the wha/volume board where I can see the photo diode reference, please?