Williams Sound TGS SYS A manual Receiver Frequency Change Instructions, R-31, R-32, R7-4

Receiver Frequency Change Instructions

Tuning for the R7, R30, R31, and R32 receivers is determined by a single tuning coil. In the R7-4 and R7-6, one coil is assigned to each switch position. See the following 6 figures and receiver types to locate the coils to be adjusted. A plastic tuning wrench (PLT 005) will be needed to adjust these receiver tuning coils.

IC01

R30

1 2

R-31

1	2
R-32

TUNING COIL

R7Y

	1
	2
R7-4	3
	4

5	1
	2
R7- 6 6	3
	4

Ferrite Tuning

"Slug"

Most Williams Sound single channel Receivers are set at the factory to 72.9 MHz. The standard four-channel receivers (R7-4NA), Channels 1-4, are usually set to frequen- cies 72.1, 72.5, 72.9, 75.7 MHz respectively. The standard six-channel receivers (R7- 6N), channels 1-6, are set to frequencies 72.1, 72.5, 72.9, 75.7, 74.7 and 75.3 MHz respectively.

The Receiver must be tuned with a weak and somewhat noisy signal. If tuned too close to the transmitter, with a strong signal, the most accurate tuning of the receiv- er is not possible.

To Change the Frequency to Another Channel:

Step 1: Set the transmitter to the channel desired and remove the antenna.

Step 2: Connect an audio source to the transmitter such as a CD or cassette player or microphone.

Step 3: Move the receiver about 25 feet away from the transmitter to set the tuning.

Step 4: Open the battery compartment, then lift up on the battery door to open the back of the receiver. This will expose the tuning coil or coils to be adjusted.

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