Info; Cleaning; Transmitter And Receiver; Earbuds - AKG IVM 4 Mode D'emploi

• You can call up the following details about your transmitter in this order:
- Firmware version (e.g., "F 2.30")
- Frequency band (e.g., "B 7.A5")
- Preset version (e.g., "P 1.76")
• To clean the transmitter and receiver surfaces, use a soft cloth moistened with
water.
1. Use a soft cloth moistened with water to clean the earbud surfaces.
2. To prevent infections, clean the ear molds with a skin compatible antiseptic be-
fore and after use.
Probelm
No sound.
Noise, crackling, unwanted signals. 1. Antenna location.
Distortion.
Momentary loss of sound
("dropouts") at some spots
within performance area.
IVM 4
4 Advanced Functions

5 Cleaning

Possible Cause
1. Power supply is not connected
to transmitter and/or power
outlet.
2. RF output is OFF.
3. Receiver is OFF.
4. Transmitter is not connected to
mixer.
5. Transmitter is tuned to different
frequency than receiver.
6. Receiver batteries are not in-
serted properly.
7. Receiver batteries/battery pack
dead.
8. Transmitter is too far away from
receiver or squelch threshold
setting is too high.
9. Obstructions between transmit-
ter and receiver.
10. Transmitter too close to metal
objects.
2. Interference from other wireless
systems, TV, radio, CB radios,
or defective electrical appli-
ances or installations.
• Interference from other wireless
systems, TV, radio, CB radios,
or defective electrical appli-
ances or installations.
• Antenna location.
«

4.2.5 Info

Refer to fig. A26
on page 136.
5.1 Transmitter and
Receiver

5.2 Earbuds

6 Troubleshooting

Remedy
1. Connect power supply to trans-
mitter and/or power outlet.
2. Activate RF output (press
RF ON/OFF).
3. Switch receiver ON.
4. Connect mixer output to trans-
mitter input.
5. Tune transmitter and receiver to
same frequency.
6. Insert batteries conforming to
"+" and "-" marks.
7. Replace batteries/charge bat-
tery pack.
8. Move closer to transmitter or
choose lower squelch threshold
setting.
9. Remove obstructions.
10. Remove objects or place trans-
mitter further away.
1. Relocate transmitter or an-
tenna.
2. Switch off interference sources
or defective appliances or tune
transmitter and receiver to a dif-
ferent frequency; have electrical
installation checked.
• Switch off interference sources
or defective appliances or tune
transmitter and receiver to a dif-
ferent frequency; have electrical
installation checked.
• Relocate transmitter or an-
tenna. If dead spots persist,
mark and avoid them.
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