Williams Sound R7-4 Installation Guide download pdf (Page 17)

Williams Sound

Helping People Hear

RECEIVER USE INSTRUCTIONS

RECEIVER MODEL PPA R7

Receiver Model PPA R7 has a single, wheel-type volume control and an earphone output jack.

BATTERY INSTALLATION

Open the battery compartment using a coin in the slot in the bottom of the receiver. Press the

battery into place, observing proper battery polarity. Incorrect insertion of the battery is

difficult, and may cause both mechanical and electrical damage to the receiver not covered

by the 5 year warranty. The receiver will not work with the battery incorrectly installed.

CONNECTING EARPHONES

Plug an earphone into the jack near the thumb wheel volume control. Only monophonic

earphones will operate properly. If stereo headphones are used, sound will be heard only in

one side. A suitable adapter (Radio Shack Part #274-368), can be used so that stereo

earphones operate on both sides. Williams Sound extensively evaluates the earphones and

headphones included with the PPA 250. We can only assure optimum performance when

Williams sound earphones and headphones are used.

OPERATING THE RECEIVER

Turn the receiver on by rotating the volume control in the direction of the arrow on top of the

case. The “On” indicator will light.

Turning the knob in the direction of the arrow will increase the volume. Turning the knob

against the arrow will decrease the volume. To avoid depleting the battery, make sure the

receiver is turned off when not in use.

If you’re using the PPA 250 with an existing sound system, make sure the sound system is

turned on. Have someone speak into a sound system microphone while you listen with the

receiver and earphone. You should be able to hear their voice through the receiver.

If you’re using the PPA 250 with a microphone—and not a complete sound system—have

someone speak into the microphone while you listen with the receiver and earphone. You

should be able to hear their voice through the receiver.

Note: The earphone cord is the receiving antenna. Do not bunch up the cord or wrap it

around the receiver.

ADDITIONAL RECEIVER INSTRUCTIONS

MODELS PPA R7-4 AND PPA R7-6

The R7-4 and R7-6 receivers feature a channel selector knob on top of the receiver. Turn the

selector knob until you hear the desired program.

MODEL PFM R16:

The R16 Receiver features an environmental microphone input and dual volume controls.

The taller knob turns the receiver on and off and controls the transmitted signal level. The

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Williams Sound R7-4 Installation Guide Page 17