Lectrosonics R172 User Manual download pdf (Page 11)

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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 POSSIBLE CAUSE

TRANSMITTER BATTERY LED OFF

1) External LED is turned off. Check internal slide

switch.

2) Battery is inserted backwards.

3) Battery is dead.

NO TRANSMITTER MOD LEVEL LEDs

1) Gain control turned all the way down.

2) Battery is in backwards. Check power LED.

3) Mic capsule is damaged or malfunctioning.

RECEIVER RF LAMP OFF

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.

NO SOUND AND RECEIVER MOD LEVEL LEDs ARE OFF

Transmitter audio muted. Make sure bottom

panel "A" switch is turned on. Push switch

toward the letter "A" to turn the audio on.

NO SOUND BUT RECEIVER MOD LEVEL LEDs ARE ON

1) Receiver audio is muted. Refer to receiver

manual.

2) Receiver audio output is disconnected or cable is

defective or mis-wired.

3) Sound system or recorder input is turned down.

DISTORTED SOUND

1) Transmitter gain (audio level) is too high. Speak

or sing into the transmitter and check mod level

lamps on transmitter and receiver.

2) Receiver output may be mis-matched with the

sound system or recorder input.

3) Excessive wind noise or breath "pops."

HISS AND NOISE -- AUDIBLE DROPOUTS

1) Transmitter gain (audio level) too low.

2) Receiver antenna missing or obstructed.

3) Operating range too great.

EXCESSIVE FEEDBACK

1) Transmitter gain (audio level) too high. Check

gain adjustment and/or reduce receiver output

level.

2) Transmitter too close to speaker system.

3) Move transmitter closer to the user's mouth.

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Lectrosonics R172 User Manual Page 11

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