Digital Hand Held Transmitter
Rio Rancho, NM
15
Troubleshooting
SYMPTOM
POSSIBLE CAUSE
TRANSMITTER WILL NOT POWER ON
1) Batteries are inserted backwards.
2) Batteries are dead, or too low to be used.
MODULATION LEDs DO NOT LIGHT
1) Audio Gain set too low.
2) Mic capsule is damaged or malfunctioning. Try a different capsule
or contact the factory for repair.
MODULATION LEDs INDICATE BUT NO SOUND
1) Talkback function is engaged (release the button on the housing).
See p. 10.
2) Check receiver display for audio level indication
3) Receiver on wrong frequency or wrong band.
4) Receiver connected incorrectly to sound system.
5) Transmitter in standby mode.
RECEIVER RF INDICATOR OFF
1) Transmitter not turned on.
2) Transmitter is in “standby” (non-transmitting) mode. Check the
LCD for the antenna/transmission icon status.
3) Batteries are dead or installed backwards.
4) Receiver antenna missing, defective or improperly positioned.
5) Transmitter and receiver not on the same frequency.
6) Operating range is too great.
7) Receiver antenna missing, incorrect frequency or disconnected.
NO SOUND BUT RECEIVER AUDIO LEVEL METER INDICATES SOUND
1) Receiver audio is muted. (Unmute receiver.)
2) Receiver audio output levels set too low.
3) Receiver audio output is disconnected or cable defective
or mis-wired.
4) Sound system or recorder input level is turned down.
DISTORTED SOUND
1) Transmitter Audio Gain set too high. Speak or sing into the
transmitter and check the Audio Level LEDs and/or Audio Level
bar graph in the transmitter LCD and corresponding indicators on
the receiver.
2) Receiver output level may be too high for the sound system or
recorder input.
3) Excessive wind noise or “breath pops.” Microphone may require
an additional wind screen.
4) Mic capsule damaged or defective
HISS AND NOISE -- AUDIBLE DROPOUTS
1) Transmitter Audio Gain set too low. See page 9 for proper audio
gain setting.
2) Receiver antenna missing, defective or obstructed.
3) Operating range too great.
4) Interference may be present. Turn transmitter off and observe the
RF level indicator on the receiver. Change frequency if necessary.
5) With Lectrosonics HHC or HHVMC: return attenuator control
back to default setting of “F” (see opposite page), then readjust
audio gain per instructions on page 9.
EXCESSIVE FEEDBACK
1) Transmitter Audio Gain set too high. Check level adjustment,
reduce receiver output level, or both.
2) Microphone too close to speaker system.
3) Move microphone closer to the user’s mouth and lower the
sound system volume.
