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serviceable parts inside. Except for the fuse in the
DC power cord, no maintenance is required.
To replace a blown fuse:
1. Press ends of the fuse holder together. Twist
to open. Carefully separate the two pieces.
2. Remove the fuse and inspect. If blown,
replace with the same type fuse.
Use only the fuse specified for your CMX660.
Failure to do so may void your warranty.
TROUBLESHOOTING
In the event of system malfunction, perform the
following procedures:
PROBLEM
SUGGESTION
Unit does not
power up
Check power cord connections.
Check fuse.
Check vehicle electrical system.
No reception
Check microphone connection.
Check volume and squelch.
Check antenna.
Check antenna connection.
Poor Reception
Check volume and squelch.
