AKG Acoustics K 306 AFC Mode D'emploi page 9

9 Troubleshooting
Symptom
No sound. 1. AC adapter is not connected to transmitter
and/or AC outlet.
2. Transmitter is not connected to audio source.
3. Connected audio source is switched off.
4. Volume control on audio source is at zero.
5. Batteries are low.
6. Headphones are switched off.
7. VOLUME control on headphones is at zero.
POWER ON/ 1. Transmitter is not connected to AC power.
CHARGE LED 2. Batteries are not correctly aligned with polarity
does not light. marks.
3. Headphones are incorrectly positioned on
transmitter.
Mono sound on 1. Connected audio source operates in mono
headphones. mode.
2. Transmitter is not correctly connected to audio
source.
Loud noise. 1. Transmitter and receiving frequencies are not
identical.
2. Audio level at transmitter input is too low.
3. Input signal is noisy.
4. Batteries are dead.
5. Transmitter position.
Distorted sound. 1. Audio level at transmitter input is too high.
2. Transmitter and headphones carrier frequencies
do not match.
3. Batteries are dead.
Possible Cause Remedy
1. Connect AC adapter to transmitter and/or
AC outlet.
2. Connect transmitter to audio source.
3. Switch audio source on to feed signal to
transmitter input.
4. Set audio source volume to desired level.
5. Charge batteries.
6. Switch headphones on.
7. Set VOLUME control to desired level.
1. Connect transmitter to AC power.
2. Check orientation of batteries in battery
compartment.
3. Place headphones on transmitter correctly.
1. Switch audio source to stereo mode.
2. Check cable connection between transmitter and
audio source.
1. Press AUTOTUNING switch on headphones or
use FREQ selector to select different carrier
frequency and press AUTOTUNING on
headphones.
2. Increase audio source volume.
3. Check audio source.
4. Charge batteries.
5. Relocate transmitter (refer to fig. 11).
1. Decrease audio source volume.
2. Use FREQ selector on transmitter to select
different carrier frequency and press
AUTOTUNING switch on headphones.
3. Charge batteries.
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