Thanks for the help.

In fact I am not able to produce the test tones, all I can do is to send pink noise when asking the Mconfig to start the Room Calibration. The regular volume calibration tone I cannot generate.

All the inputs I had tested output sound via Zone 2 and Zone 3, I tried optical, coaxial and digital input outputting to the Zone 2/3 digital and analog outs, it always works perfectly. Is this an indicating that my input board is ok?

Where is the clock of the system located? Yesterday I notice that the digital out tried to send something to the speakers, where the display was fast changing from PCM NL, PCM 96k and PCM 32k.

Today I will try to remove the cards was you mentioned and see if it works without the tuner card. Also I will clean the connections again.

Best Regards,

Jorge