7
Multi-channel Wireless System
SYMPTOM
POSSIBLE CAUSE
NO POWER LEDs OR AUDIO
1) Power switch in the OFF position. Switch to MAIN/EXT.
POWER LED LIGHTS ON CDM4
smt
1) Power leads in back not connected to receivers.
BUT NO LIGHTS ON RECEIVERS
Check power connections.
NO POWER LEDs, ALL
1) Gel-cell battery charge too low. Either switch to INT 9V setting
CONNECTIONS CHECK OK
on CDM4
smt
, use an external 12 Vdc power supply, or operate on
110 Vac with the CH-50 charger. If the internal batteries are used,
be sure that all the receivers are switched to INT power
as well.
POWER AND MODULATION LEDs ON,
1) No audio connection to recorder or mixer. Check
BUT NO AUDIO
connections.
POWER LEDs ON, NO MODULATION LEDs
1) Transmitters not on or in mute position. Check transmitters.
2) Transmitters have dead batteries, check batteries.
POOR SIGNAL/NOISE OR DROPOUTS
1) Antenna leads not connected, Check antennas.
2) Main antenna improperly connected. Check antenna.
3) Antenna “blocked” or in poor RF location. Try moving the
system or the antenna.
4) Transmitter modulation improperly set. Check mod levels.
INTERNAL GEL-CELLS NOT CHARGING
1) Check charger - Output voltage should be 14 to 20 VAC.
SPECIFICATIONS
RF/POWER DISTRIBUTION MODULE
Rio Rancho, NM – USA
