User's Manual

IFBR1a, IFBR1a/E01, IFBR1a/E02

LECTROSONICS, INC.

Troubleshooting

LED NOT LIT • Battery not installed or depleted.

• Power not turned on.

NO SOUND IN HEADPHONE • AUDIO LEVEL turned all the way down.

• Headphone plug not inserted fully.

• Defective headphone or connector

• Transmitter not operating. (See separate transmitter manual.)

• Receiver not on the same frequency as the transmitter.

See pages 6 and 8.

DISTORTED SOUND • Transmitter gain (audio level) is far too high. Refer to the operating

instructions section in the transmitter manual for details on gain

adjustment.

• Receiver output may be mismatched with the headset or

earphone. Adjust audio level on receiver to the correct level

for the headset or earphone.

• Receiver may be tuned to an IM product. This can happen when a

frequency is added with the scanning procedure and the receiver

is close to more than one transmitter antenna. Try setting the

frequency manually using the Direct Entry mode on page 8.

HISS AND NOISE, AUDIBLE DROPOUTS • Transmitter gain far too low.

• Receiver antenna missing or obstructed.

(Headphone cable is the antenna.)

• Transmitter antenna missing or obstructed.

• Operating range too great.

• Transmitter antenna obstructed. Move transmitter antenna and/or

receiver to a position with a line of sight between the transmitter

antenna and the receiver.

• Receiver antenna (headset cord) may need to be repositioned for a

line of sight to transmitter antenna

SHORT RANGE • Receiver earphone cable is also the antenna. Make sure the cable

is not coiled or wound up or wrapped around the receiver case.

KNOB DOES NOT CHANGE FREQUENCIES NOR START SCANNING

• Check to see if the switch has been defeated - see page 9.

Possible Cause

Symptom