Radio Interference / Tuning Instructions
The PERSONAL PA System 400 is usually not
disturbed by other radio services. However, there are
no exclusive channels for this radio service. If you
experience interference, follow the directions below.
Frequency Change Instructions
Step 1: Unplug the power cord from the
transmitter and remove the antenna.
Step 2: Use a phillips-type screwdriver to loosen
the two screws on the rear of the
transmitter
. Remove the cover. Slide the
circuit board out of the case.
Step 3: Use the diagram in Figure 6 to locate the
frequency selector switches on the circuit
board. Y
ou will also find the Switch
Settings Table in Figure 6.
Step 4: Use a paper clip or small screwdriver (not
a pencil point) to move the switches to
correspond with the switch positions for
channel 53 on the programming chart.
DO
NOT TOUCH ANY OF THE OTHER
ADJUSTMENTS!
Step 5: Re-assemble the transmitter and plug it in.
Connect a tape player or radio to the
transmitter to provide a tuning signal for
the receivers.
Step 6: Change all receiver frequencies to receiver
channel 53. For the R19, move the slide
switch on the control panel to channel 2
For the R19-4 and R19-6, turn the rotary
switch on the control panel to channel 4.
Step 7: Listen for the signal through the receivers.
Step 8: If you are using R19 Receivers and are
still experiencing interference, you must
return the receivers to your dealer for the
installation of new crystals.
If you are using R19-4 or R19-6
Receivers, repeat the steps above for
channels 13 or 23.
Receiver Frequencies
The R19, R19-4, and R19-6 operate on fixed
crystals. Because of the nature of these crystals,
frequency tuning is highly stable over the life of the
receiver.
Crystals are not tunable. if alternate frequencies
ar
e needed, return the receivers to your dealer for
new crystals. There are 10 standard frequencies
available.
The R19 has a slide switch to select from channels 1
or 2 (channels 33 and 53).
The R19-4’s rotary switch allows you to select
between channels 1-4, (channels 13, 23, 33, and 53).
The R19-6’s rotary switch allows you to select
between channels 1-6, (channels 13, 23, 33, 53, 38,
and 43).
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