AOR-5 or AOR-10 No power or battery light on front cover, but some trouble lights are lit for stations, and there are red LEDs lit on the PCB
The ribbon cable from the front panel to the PCB, is upside down when where it connects to the PCB. The red wire is pin 1 and should be at the top of the connector when it is correctly plugged into the PCB.
Other symptoms include:
Configure button not working
Trouble lights lit for stations 2-4 or 2-9 even if stations have good connections.
Unable to call stations