Troubleshooting - Lectrosonics UM195 Operating And Troubleshooting Manual

Before going through the following chart, be sure that you have a good battery in the transmitter. It is important
that you follow these steps in the sequence listed.
SYMPTOM
TRANSMITTER BATTERY LED OFF
NO TRANSMITTER MODULATION LEDs
RECEIVER RF LAMP OFF
PILOT TONE LED ON THE RECEIVER
INDICATES TRANSMITTER AUDIO IS MUTED
NO SOUND (OR LOW SOUND LEVEL),
RECEIVER MOD LEVEL LEDs ARE ON
AND VU METER INDICATES AUDIO
DISTORTED SOUND
HISS AND NOISE -- AUDIBLE DROPOUTS
EXCESSIVE FEEDBACK

TROUBLESHOOTING

1) Battery is inserted backwards.
2) Battery is dead.
1) Gain control turned all the way down.
2) Battery is in backwards. Check power LED.
3) Mic capsule is damaged or malfunctioning.
4) Mic cable damaged or mis-wired.
1) Transmitter not turned on.
2) Transmitter battery is dead.
3) Receiver antenna missing or improperly positioned.
4) Transmitter and receiver not on same frequency. Check
labels on transmitter and receiver.
5) Operating range is too great.
6) (UHF version only) Transmitter antenna not connected
1) Transmitter audio muted. Make sure transmitter
power/mute switch is in the "on" position.
1) Receiver output level set too low.
2) Receiver output is disconnected; cable is defective or
mis-wired.
3) Sound system or recorder input is turned down.
1)Transmitter gain (audio level) is far too high. Check mod
level lamps on transmitter and receiver as it is being
used. (refer to page 7 for details on gain adjustment)
2) Receiver output may be mis-matched with the sound
system or recorder input. Adjust output level on receiver
to the correct level for the recorder, mixer or sound
system.
3) Excessive wind noise or breath "pops." Re-position
microphone and/or use a larger windscreen.
1) Transmitter gain (audio level) far too low.
2) Receiver antenna missing or obstructed.
3) (UHF only) Transmitter antenna missing.
4) Operating range too great.
1) Transmitter gain (audio level) too high. Check gain
adjustment and/or reduce receiver output level.
2) Transmitter too close to speaker system.
3) Mic is too far from user's mouth.
9
POSSIBLE CAUSE