Lectrosonics CR187, Instruction Manual, Page: 9 / 12

Compact Receiver
Rio Rancho, NM
9
Troubleshooting
Before proceding, ensure that you have a good battery in the receiver (or a properly connected AC adapter) and that
the POWER LED is glowing brightly.
SYMPTOM POSSIBLE CAUSE
NO POWER LED
1) Receiver switch in “OFF” position
2) Dead or weak battery
3) External 12 Volt power disconnected
4 )CH-12 AC adapter disconnected
5) Receiver switch in wrong position for the power source used
NO RF LED
1) Transmitter not turned on
2) Transmitter battery dead
3) No microphone on transmitter (the microphone serves as
the antenna
4) Receiver antenna not connected
RF LED ON BUT NO SOUND AND NO MODULATION LEDS
1) Transmitter switch in “MUTE” position
2) Transmitter microphone not connected
3) Microphone switch in “OFF” position
4) Possible malfunction in the audio section of the transmitter.
See transmitter manual.
5) Check transmitter modulation LEDs for possible transmitter problem
MODULATION LED’s ON BUT NO SOUND 1) Receiver LEVEL control turned down.
2) Audio cable disconnected
3) Recorder or sound system off, or not properly adjusted.