Accenta G4 mini panel with LCD keypad. I managed to blow fuse 2 (Speaker fuse). Now the LCD display shows all segments as dark (all segments are displaying). The system seems to work OK but I cannot read any messages. Is the keypad at fault or the control panel? How to fix?

Hitch, April 2012

Thanks, I tried a restart with no result, so I turned off the mains and removed the battery & checked all the fuses and all were O.K.
At this point I thought I would try a reset to factory defaults and replaced the battery in order for the system to 'see' the removal of the PA and SET connections before making the PA-SET link. On removal of the PA loop the whole thing burst into life. The changes from the factory defaults were preserved and on replacement of the PA connections all was fine. I had to re-input the time/date but all seems to be fine.
Thanks

Hitch, April 2012

Do a restart.
And check all the other fuses WITH a meter.

Alarm, April 2012