Operating Notes; General Hints; Systems With Distributed Power Supplies; Powering Up - AKG WMS4000 User Instructions

4 Operating Notes

4.1 General Hints

Important!
4.2 Systems with Distributed
Power Supplies

4.2.1 Powering Up

4.2.2 Powering Down

4.3 Systems with PS 4000
Central Power Supplies
4.3.1 Powering Up
4.3.2 Powering Down

5 Cleaning

6 Troubleshooting

Problem
No sound.
No or poor reception on individual
channels.
Green LED on an active antenna
component is dark.
One of the ERROR LEDs on the
antenna splitter is lit.
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1. Be sure to assign a separate carrier frequency to each wireless channel (transmitter and receiver).
2. Do not operate two or more wireless channels on the same frequency at the same time and location.
This would cause unwanted noise due to radio interference.
To prevent damage from overloading the antenna splitter power supply, always switch power to
the various components of your system on and off in the order described in sections 4.2 and 4.3.
1. Switch power to all transmitters ON.
2. Switch ON all receivers connected to the antenna splitter.
3. Press the ON/OFF key on the antenna splitter to switch power to the antenna splitter ON.
The blue OK LEDs and the green status LEDs on the connected active components will illuminate.
1. Switch OFF all receivers connected to the antenna splitter.
2. Switch power to all transmitters OFF.
3. Press the ON/OFF key on the antenna splitter to switch power to the antenna splitter OFF.
The blue OK LEDs and the green status LEDs on the connected active components will extinguish.
1. Switch the PSU 4000 central power supply ON.
2. Switch power to all transmitters ON.
3. Press the ON/OFF key on the antenna splitter to switch power to the antenna splitter ON.
The blue OK LEDs and the green status LEDs on the connected active components will illuminate.
4. Switch ON all receivers connected to the antenna splitter.
1. Switch OFF all receivers connected to the antenna splitter.
2. Switch power to all transmitters OFF.
3. Press the ON/OFF key on the antenna splitter to switch power to the antenna splitter OFF.
The blue OK LEDs and the green status LEDs on the connected active components will extinguish.
4. Switch the PSU 4000 central power supply OFF.
Use a soft cloth moistened with water to clean the antenna splitter surfaces.
Possible Cause
1. Power supplies/PSU 4000 not connected
to power outlet(s).
2. DC cables not connected or defective.
3. Antennas not connected.
4. Power supplies/PSU 4000 defective.
1. Transmitter and/or receiver switched OFF.
2. Transmitter batteries down.
3. Power supply of receiver or feeder cable
from PSU 4000 to receiver
a) makes poor contact or
b) is defective.
4. Transmitter and receiver of dead channel
are tuned to different frequencies.
5. Transmitter or receiver defective.
1. Antenna cable not connected or makes
poor contact.
2. Antenna cable defective.
3. Active antenna component defective.
1. Supply voltage for active antenna compo-
nents shorted out.
2. Supply voltage for active antenna compo-
nents too low because cable run is too
long.
Remedy
1. Connect power supplies/PSU 4000 to
power outlet(s).
2. Connect or replace DC cables.
3. Connect antennas.
4. Contact your nearest AKG Service Center.
1. Switch transmitter and/or receiver ON.
2. Replace transmitter batteries.
3. a) Check power supply or feeder cable
connectors for secure fit or
b) Replace power supply or feeder cable.
4. Tune transmitter and receiver to the same
frequency. Refer to the transmitter and
receiver Instruction Manuals.
5. Contact your nearest AKG Service Center.
1. Connect antenna cable or check connec-
tors for secure fit.
2. Replace antenna cable.
3. Contact your nearest AKG Service Center.
1. Check all cables and active antenna com-
ponents connected to antenna splitter.
2. Refer to Table 1 to check cable lengths
and use shorter cables or break down
cable run and insert ASU 4000(s) (see also
Wiring Diagrams).
AKG PS 4000