XPA5 faults when switching source on Marantz 5007

[duihlein]

Just got my XPA5 and hooked it up yesterday.
I have the XPA5 feeding L/C/R and SBL/SBR speakers
The Marantz still powers the SL/SR speakers

When I change inputs (Sat to DVD or XBox) the XPA5 goes to fault mode.
I have to unplug the DC trigger cable, then plug it back in and the amp goes back to normal operation.

The same thing happens when I try to run calibration.

Other than this issue, the sound is incredible.

Any thoughts/suggestions??

[mshump]

Have you tried switching between inputs etc with the trigger cable disconnected?

[duihlein]

Looked at my connections again and had a back surround out of phase.
Once I fixed that, calibration and source switching working fine.

Thanks!