Lectrosonics Pro 4 Mini User Manual download pdf (Page 7)

TROUBLESHOOTING

SYMPTOM POSSIBLE CAUSE

NO POWER LEDs OR AUDIO 1) Power switch in the OFF position. Switch to

MAIN/EXT.

POWER LED LIGHTS ON CDM4

BUT NO LIGHTS ON CR185’s

1) Power leads in back not connected to receivers.

Check power connections.

NO POWER LEDs, ALL

CONNECTIONS CHECK OK

1) Gel-cell battery charge too low. Either switch

to INT 9V setting on CDM4, 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 CR185 receivers are switched to INT

power as well.

POWER AND MODULATION LEDs ON,

BUT NO AUDIO

1) No audio connection to recorder or mixer. Check

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.

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Lectrosonics Pro 4 Mini User Manual Page 7