AKG HEARO 888 TITAN Manual Del Usuario página 18

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6 Troubleshooting
Symptom
Mono sound
Noise
Distorted sound
Intermodulation noise
Headphones receive unwanted trans-
mitters
Overemphasized bass or treble range
Beep sounds heard in headphones
Short reception dropouts (crackling)
18
Possible Cause
1.
Connected audio source operates
in mono mode.
2.
Transmitter is not correctly
connected to audio source.
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 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
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 headphones
carrier frequencies do not match
exactly.
2.
No or weak reception.
1.
Headphones poorly tuned.
2.
Interference from other equipment.
3.
Signal too weak due to reception
disturbances.
Remedy.
1.
Switch audio source to stereo
mode.
2.
Check cable connection between
transmitter and audio source.
1.
Readjust TUNING control on head-
phones or use FREQ ADJUST
control on transmitter to select
different carrier frequency and
readjust TUNING control on head-
phones.
2.
Turn up audio source volume con-
trol and/or INPUT LEVEL control
on transmitter.
3.
Check audio source.
4.
Charge batteries.
1.
Turn down audio source volume
control and/or INPUT LEVEL con-
trol on transmitter.
2.
Use FREQ. ADJUST control on
transmitter to change carrier fre-
quency and readjust TUNING con-
trol on headphones.
3.
Charge batteries.
1.
Switch off any "suspicious"
appliances (if possible).
2.
Check audio source or sound
carrier.
1.
Use FREQ. ADJUST control on
transmitter to change carrier fre-
quency and readjust TUNING
control on headphones.
1.
Readjust bass or treble controls.
1.
Use FREQ. ADJUST control on
transmitter to change carrier fre-
quency and readjust TUNING
control on headphones.
2.
Change listening position, move
closer to transmitter.
1.
Readjust TUNING control on head-
phones.
2.
Use FREQ. ADJUST control on
transmitter to change carrier fre-
quency and readjust TUNING
control on headphones.
3.
Change listening position, move
closer to transmitter.

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