Multichannel Systems; Cleaning - AKG PR 81 Manual De Instrucciones

2. The red AF LED (1hd on the receiver constantly lighting red and/or the status
LED (2b, 3c) on the transmitter lighting constantly means the transmitter is
overloaded. Turn the GAIN control (2e) or (3j) on the transmitter CCW to the
point that the above LEDs will only flash occasionally.
3. Set the audio input level on your camcorder or on the mixer channel to which
the receiver is connected.
If the selected input provides phantom power, switch the phantom power OFF.
4. If unwanted noise becomes audible, turn the SQUELCH control (1j) CW just
enough to suppress the noise.
The RF LED (1c) will light red every time the squelch mutes the audio output
of the receiver.
Never set the squelch threshold higher than absolutely necessary. The
higher the squelch threshold, the lower the sensitivity of the receiver
and thus the usable range between transmitter and receiver.
5. Check the field strength of the received signal. If the RF LED (1c) is dark, repo-
sition the receiver and/or transmitter such that the RF LED (1c) will light green.
6. The RF LED (1c) on the receiver illuminating means no signal is received or
the squelch is active.
Switch the transmitter ON, move closer to the receiver, or turn the SQUELCH
control (1j) CCW to the point that the RF LED (1c) will light green constantly.
1. Be sure to assign a separate carrier frequency to each transmission channel
(transmitter + receiver).
2. Set the transmitter and receiver to one of the frequencies marked with * in the
carrier frequency tables (1n, 2h, 3k).
If reception on the selected carrier frequency is disturbed, set the car-
rier frequencies for all channels up or down one or two notches using
the respective CHANNEL controls (1k, 2g, 3f) on each transmitter and
receiver.
This is necessary to provide the minimum frequency spacing required
for intermodulation-free multichannel operation.
Do not operate two or more channels on the same frequency at the
same time and location. This would cause unwanted noise due to radio
interference.
Use a soft cloth moistened with water to clean the receiver and transmitter
surfaces.
PART V: OPERATING NOTES
Refer to the manual of
your camcorder or
mixing console.
Important:
1.2 Multichannel
Systems
Important:
Important:

2 Cleaning

V
29