Table of Contents
Audio+ Module Architecture . . . . . . . . . . . . . . . . . . . . . . . 
Enabling the Audio+ Music I/O Card in the MCU
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 
Controls and Indicators  | . . . . . .   | 
MGC+ Unit Front Panel  | . . . . . .   | 
LED Indicators  | . . . . . .   | 
MGC+ Unit Rear Panel  | . . . . . .   | 
Corrective Maintenance  | . . . . . .   | 
Replacing a Functional Module  | . . . . .   | 
Replacing the I/O Cards of Functional Modules  | . . . . .   | 
Replacing the Power Supply Modules on the MGC+100  | . . . .   | 
Replacing the Power Supply Module on the MGC+50 .  | . . . . .   | 
Fan Replacement for the MGC+100  | . . . . .   | 
Fan Replacement for the MGC+50  | . . . . .   | 
Replacing the Main Control Module  | . . . . .   | 
Replacing the Main Control Module rear I/O Panel  | . . . . .   | 
Replacing Compact Flash Accessories  | . . . . .   | 
Replacing the Dongle  | . . . . .   | 
Verifying the Dongle  | . . . . .   | 
Shutting Down the MGC+ 50/100  | . . . . .   | 
Troubleshooting  | . . . . .   | 
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