Hi,

I started an other tread with somewhat of the same problems but perhaps it's better to join in here.

I have changed the PSU and capacitors (thanks for the tips Floris). Cleaned the contacts, retyped etc.
I still get no sound from any input via digital coax, there is no relay clicking. The relay clicks before calibration starts and that mode works. Also if Calibration is being started from standby - more modus which also works after the relay click. Is it the relay on the digital board and is it controlled by 2 circuits?

I've measured the voltage across the regulator on the comms PCB 5,05 V and on the digital out board 4,9 V

Some Meridian...