AKG HEARO 999 AUDIOSPHERE II Manual De Instrucciones página 19

2151_03_Hearo999_fsch
Symptom
Mono sound
Noise
Distorted sound
Intermodulation noise
Headphones receive unwanted trans-
mitters
Overemphasized bass or treble range
Beep sounds heard on wireless head-
phones
Momentary reception dropouts
(crackling)
INPUT LED flashing red.
06.08.2003 8:22 Uhr Seite 21
1. Connected audio source operates
in mono mode.
2. Transmitter is not correctly
connected to audio source.
1. Audio level at transmitter input is
too low.
2. Input signal is noisy.
3. Batteries in wireless headphones
are low.
1. Audio level at transmitter input is
too high.
2. Batteries in wireless headphones
are low.
1. Electrical appliances with poor
interference 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.
1. Transmitter and headphone carrier
frequencies do not match.
2. No or weak reception.
1. Interference from other equipment.
2. Signal too weak due to reception
disturbances.
1. SURROUND selector at "CLUB",
"HALL", or "STADIUM" although
Dolby Digital signal is present at
input.
6 Troubleshooting
Possible Cause
1. Switch audio source to stereo
2. Check cable connection between
1. Turn up audio source volume con-
2. Check audio source.
3. Charge batteries.
1. Turn down audio source volume
2. Charge batteries.
1. Switch off any "suspicious"
2. Check audio source or sound
1. Set FREQ. selector on HEARO and
1. Readjust bass or treble controls.
1. Set FREQ. selector on HEARO and
2. Change listening position, move
1. Use FREQ. selector on HEARO and
2. Change listening position, move
1. Set SURROUND selector to
Remedy
mode.
HEARO and audio source.
trol and/or INPUT LEVEL control on
HEARO.
control and/or INPUT control on
HEARO.
appliances (if possible).
carrier.
frequency selector on headphones
to same channel.
frequency selector on headphones
to same channel.
closer to transmitter.
frequency selector on headphones
to change carrier frequency.
closer to transmitter.
"AUTO".
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