Help wtih Z600 Comm Controller please...

I suspect it might be fried, but the Z600 is one of the elan components in my system....and it shows the "M" light lit up on the front panel. If I have the doorbell hooked up to it, all of the zones go silent for audio. As soon as I either turn the Z600 off, or unplug the doorbell, audio goes back on. Is there a way to reset this thing?? I tried using the phone #6 command...but it does nothing. No other phone commands are working either. I also tried unplugging the phone connections to the Z600 but that didn't help either.


If I can't get this to start working....is there a workaround for getting the doorbell to work again? Does anyone have a Z600 they would like to sell? Is there another piece that would work with this elan setup to get the doorbell functioning again??


Thanks alot for your help!!


Jerry