AKG Acoustics K 105 UHF - Manual (Page 14)

6 Troubleshooting
14
Symptom
3. Batteries will not be charged:
4. Mono sound:
5. Noise:
6. Distorted sound:
7. Intermodulation noise:
8. Headphones receive unwanted
transmitters:
9. Overemphasized bass or treble
range:
Possible Cause
1. Charging cable is not or loosely
plugged in.
2. Batteries are not correctly aligned
with polarity marks.
3. Headphones are ON during
charging.
1. Connected audio source operates in
mono mode.
2. Transmitter is not correctly con-
nected to audio source.
1. Transmitter is set to the wrong
carrier frequency.
2. Frequency setting on headphones
does not match transmitter carrier
frequency.
3. Audio level at transmitter input is too
low.
4. Input signal is noisy.
5. Batteries are low.
1. Audio level at transmitter input is too
high.
2. Transmitter and headphones carrier
frequencies do not match exactly.
3. Batteries are low.
1. Electrical appliances with poor inter-
ference protection.
2. Audio source or sound carrier
defective.
1. A neighbor uses similar UHF head-
phones.
1. Bass or treble control settings on
audio source.
Remedy
1. Connect charging cable or push
connectors all the way into the
charging jacks.
2. Check orientation of batteries inside
battery compartment.
3. Switch headphones OFF.
1. Switch audio source to stereo mode.
2. Check cable connection between
transmitter and audio source.
1. Use A-B-C switch to select different
carrier frequency.
2. Move about 33 ft. (10 m) away from
transmitter and readjust TUNING
control on headphones.
3. Increase audio source volume.
4. Check audio source.
5. Charge batteries.
1. Decrease audio source volume.
2. Readjust TUNING control on head-
phones.
3. Charge batteries.
1. Switch off any “suspicious” applian-
ces (if possible).
2. Check audio source or sound
carrier.
1. Use A-B-C switch to select different
carrier frequency and readjust
TUNING control on headphones.
1. Readjust bass or treble controls.