Harman-Kardon WMS 470 - Manual (Page 50)

9 Troubleshooting
44 WMS 470
Problem Possible Cause Remedy
No sound. 1. AC adapter is not connected to receiver and/or power
outlet.
2. Receiver is OFF.
3. Receiver is not connected to mixer or amplifier.
4. Microphone or instrument is not connected to body-
pack transmitter.
5. Transmitter is tuned to different frequency than re-
ceiver.
6. Transmitter is "OFF" or transmitter MUTE switch at
"MUTE".
7. Transmitter batteries are not inserted properly.
8. Transmitter batteries/battery pack dead.
9. Transmitter is too far away from receiver or squelch
threshold setting is too high.
10. Obstructions between transmitter and receiver.
11. Receiver is invisible from transmitter location.
12. Receiver too close to metal objects.
13. Transmitter and receiver Preset versions are not
identical.
1. Connect AC adapter to receiver and/or power outlet.
2. Push POWER switch to switch receiver ON.
3. Connect receiver output to mixer or amplifier input.
4. Connect microphone or instrument to audio input on
bodypack.
5. Tune transmitter and receiver to the same frequency.
6. Switch transmitter "ON" or set MUTE switch to ”ON”
position.
7. Insert batteries conforming to "+" and "-" marks.
8. Replace batteries/charge battery pack.
9. Move closer to receiver or choose lower squelch
threshold setting.
10. Remove obstructions.
11. Avoid spots where you cannot see receiver.
12. Remove offending objects or move receiver away.
13. Check Preset versions on transmitter and receiver.
Noise, crackling, unwanted signals. 1. Antenna location.
2. Interference from other wireless systems, TV, radio,
CB radios, or defective electrical appliances or instal-
lations.
1. Relocate receiver or antennas.
2. Switch off interference sources or defective appli-
ances or tune transmitter and receiver to a different
frequency; have electrical installation checked.
Distortion. 1. GAIN control on transmitter is set too high or too low.
2. Interference from other wireless systems, TV, radio,
CB radios, or defective electrical appliances or instal-
lations.
1. Decrease or increase GAIN setting just enough to
stop the distortion.
2. Switch off interference sources or defective appli-
ances or tune transmitter and receiver to a different
frequency; have electrical installation checked.
Momentary loss of sound ("dropouts") at
some points within performance area.
• Antenna location. • Relocate receiver or antennas. If dead spots persist,
mark and avoid them.
Error Messages Problem Remedy
ERR.>SYS< • Frequency settings cannot be changed. 1. Switch power to receiver OFF and back ON after
about 10 seconds.
2. If problem persists, contact your AKG Service Center.
ERR.>PRE< • Error in selected Preset. 1. Continue with previous Preset.
2. Select error-free Preset.
3. If problem occurs frequently, contact your AKG Serv-
ice Center.
TXBand 1. Transmitter frequency band is not identical with re-
ceiver frequency band.
2. RF output too high/low.
1. Use transmitter with the same frequency band as the
receiver.
2. Use transmitter with lower/higher Rf output.
ERR.>USR< • Last setting cannot be loaded. 1. Set frequency and squelch threshold again.
2. If problem occurs frequently, contact your AKG Serv-
ice Center.
ERR.>RF< • PLL error. (Receiver cannot lock on to selected fre-
quency.) 1. Set different frequency.
2. If problem persists, contact your AKG Service Center.
Err.>IR< • Infrared transmisison failed. • Point transmitter infrared sensor directly at receiver
infrared emitter from a distance of approx. 2 inches
(5 cm).
>-h< 1. Transmitter cannot identify battery as dry or
rechargeable type.
2. Transmitter was switched on during charging.
1. Remove battery and reinsert after approx. five sec-
onds.
2. Remove transmitter from charger, switch off, and
restart charging (cf. CU 400 manual)
>ChArGE<
(rechargeable battery only)
• Battery is not fully charged. 1. Charge transmitter using CU 400 charger.
2. Replace transmitter battery with new dry or fully
charged rechargeable battery.
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WMS470_F031016_Hex_final 22.12.2010 14:19 Uhr Seite 44 (Schwarz/Black Auszug)