Bosch Radionics DS7400XI Trouble

Troubles display by flashing green Power Light
Display Trouble User Code + # + 8 + 7 (Zone LED turns on indicating trouble)

Zone 1 = AC Power Failure
Zone 2 = Low Backup Battery
Zone 3 = Communication Error
Zone 4 = System Fault (Internal panel trouble)
Zone 5 = Keypad Fault (one or more keypads may be bad)
Zone 6 = Multiplex Bus Failure (Bad Expansion module)
Zone 7 = Aux Power Fault (power trouble with panel)
Zone 8 = Zone Trouble
Trouble Reset User Code + SYSTEM RESET
Smoke Reset User Code + OFF + User Code + SYSTEM RESET
Zone Test User Code + # + 8 + 1
Battery Test User Code + SYSTEM RESET
Siren Test User Code + # + 8 + 5
Phone Test User Code + # + 8 + 2