Troubleshooting - Lectrosonics SMB Series Instruction Manual

SMB/EO1, SMB/E02 Series

Troubleshooting

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 PWR LED OFF
TRANSMITTER PWR LED BLINKS GREEN EVERY FEW SECONDS, TRANSMITTER
DOES NOT RESPOND OTHERWISE
AUDIO LEVEL LEDs NOT LIGHTING
RECEIVER RF INDICATOR OFF
NO SOUND (OR LOW SOUND LEVEL), RECEIVER INDICATES PROPER AUDIO MODULATION
wired.
DISTORTED SOUND
Check
EXCESSIVE FEEDBACK
16
POSSIBLE CAUSE
1) Battery is inserted backwards or dead.
2) Transmitter not powered up. (See Operating Instructions,
Power UP and Boot Sequence.)
1) Transmitter has been put to sleep by remote.
Either use the remote function to wake it up again or remove
and reinsert the transmitter's battery.
1) Gain control set to minimum.
2) Battery is dead or installed backwards. Check PWR LED.
3) Mic capsule is damaged or malfunctioning.
4) Mic cable damaged or mis-wired.
1) Transmitter not turned on, or is in Standby Mode.
2) Transmitter battery is dead.
3) Receiver antenna missing or improperly positioned.
4) Transmitter and receiver not on same frequency.
Check switches/display on transmitter and receiver.
5) Transmitter and receiver not on same frequency block.
6) Operating range is too great.
7) Defective transmitter antenna.
1) Receiver output level set too low.
2) Receiver output disconnected, or cable defective or mis-
3) Sound system or recorder input is turned down.
1) Transmitter gain (audio level) is far too high. Check audio level
LEDs and receiver audio levels during use.
2) Receiver output may be mismatched with the sound system or
recorder input. Adjust output level on receiver to the correct
level for the recorder, mixer or sound system.
(Use the receiver's Tone function to check level.)
3) Transmitter is not set to same frequency as receiver.
that operating frequency on receiver and transmitter match.
4) Receiver/Transmitter Compatibility Mode mismatched.
1) Transmitter gain (audio level) too high. Check gain adjustment
and/or reduce receiver output level.
2) Talent standing too close to speaker system.
3) Mic is too far from user's mouth.
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