Williams Sound PPA VPE Manual de usuario

Williams Sound

Helping People Hear



MAN 035G

PERSONAL PA®Value Pack System

Wide-Band FM Wireless Listening System

Model PPAVPE

Transmitter Model T17, T17-6

Receiver Model R7, R7-4, R7-6

Installation

Guide &

User

Manual

Williams Sound

Helping People Hear



PERSONAL PA®VALUE PACK SYSTEM, MODEL PPA VPE

INSTALLATION GUIDE & USER MANUAL

CONTENTS PAGE

SYSTEM OVERVIEW 4

SYSTEM CONTROLS AND FEATURES 5

SYSTEM SET-UP AND OPERATION 7

ANTENNA CONNECTION

POWER CONNECTION

AUDIO CONNECTION

USING A MICROPHONE

TURNING OFF DC MICROPHONE POWER

RECEIVER USE INSTRUCTIONS 9

PPA R7 RECEIVER

ADDITIONAL RECEIVERS

USING A RECEIVER WITH A HEARING AID

BATTERY INFORMATION 11

SINGLE-USE BATTERIES

RECHARGEABLE BATTERIES

TROUBLESHOOTING GUIDE 12

FREQUENCY CHANGE INSTRUCTIONS 14

TRANSMITTER FREQUENCY CHANGE INSTRUCTIONS

RECEIVER FREQUENCY CHANGE INSTRUCTIONS

RECEIVER MANAGEMENT SUGGESTIONS 17

WARRANTY 18

SYSTEM SPECIFICATIONS 19

Williams Sound

Helping People Hear



SYSTEM OVERVIEW

Thank you for purchasing the Personal PA Value Pack System from Williams Sound

Corporation. The PPA VPE System is a Wide-Band FM Listening System which operates in

the 72-76 MHz frequency band. Designed for hearing assistance in places of public access,

the PPA VPE is for those who need help overcoming background noise, reverberation, or

distance from the sound source. The versatile PPA VPE is easily integrated with your

existing sound system or can be used with a microphone as a stand-alone system.

The system has two principal parts: the T17 Transmitter and the R7 Receivers. Much like a

miniature radio station, the Transmitter and microphone pick up the sounds you want to hear

and broadcast them over an FM radio signal. The receivers are used to pick up the broadcast

up to 500 feet away.

To avoid difficulties, please read through these instructions as you begin to use the system.

Then save the manual for questions that arise as you continue to use your PERSONAL PA

Value Pack System.

If you have any problems with this Williams Sound product, don’t hesitate to call us toll-free

at 1-800-843-3544.

Sound System Amplifier

Loudspeakers

Microphones

Line-Level Output

R7 / R7-4 / R7-6 Wide-band 

Receivers w/Earphones

Line-Level Input

T17 Transmitter

FIGURE 1: OVERALL SYSTEM DIAGRAM

Williams Sound

Helping People Hear

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EAR/CHG Volume

FIGURE 3: R7 RECEIVER CONTROLS

EAR/Charging Jack

Combination mono 3.5 mm mini

earphone and charging jack.

Off/On Indicator Light

Red LED which indicates

receiver is “on” when lit.

Volume/On-Off Control

Combination volume and on-off

thumb wheel control.

Mic

Williams Sound

Auditory Assistance Transmitter

Level Audio

Williams Sound Corp., Minneapolis, MN, USA

12 VAC

100 mA

Antenna Power Audio In

75 Ohm

Hi-Z

Line

Made in U.S.A

FM Transmitter Model PPA T17

FIGURE 2: T17 TRANSMITTER CONTROLS

Mic Input

3.5 mm mini phone jack for use

with Williams Sound condenser

microphones. Supplies +DC power

for condenser microphones.

Level Control

Screwdriver-adjust control used to

set the microphone input level or the

audio input level.

ON Indicator Light

Glows when power is applied to

the transmitter. There is no

on/off switch. The T17 is

designed to be left on

continuously.

Audio Indicator Light

Flashes when audio signal is

present.

Audio Input

An RCA-type jack for

connecting the transmitter to

other sound systems. Accepts

line-level, unbalanced audio

inputs.

Power Input Jack

Connects to the plug on the wall

transformer power supply.

Antenna Output

Connector

This connector is defeated, as

specified by FCC Rules. To use

the ANT 005 remote antenna,

contact your dealer or Williams

Sound.

Antenna Mounting Stud

(Top Panel)

For use with the “rubber duckie”

type antenna supplied.

Williams Sound

Helping People Hear

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SYSTEM CONTROLS AND FEATURES

T17 TRANSMITTER FRONT PANEL

MIC INPUT:

3.5 mm mini phone for use with Williams Sound condenser microphones. Supplies +DC

power for condenser microphones.

LEVEL CONTROL

Screwdriver-adjust control used to set the microphone input level or the audio input level.

ON INDICATOR LIGHT

Glows when power is applied to the transmitter. There is no on/off switch. The T17 is

designed to be left on continuously.

AUDIO INDICATOR LIGHT

Flashes when audio signal is present.

T17 TRANSMITTER TOP PANEL

ANTENNA MOUNTING STUD

For use with the “rubber duckie” type antenna supplied with the T17.

T17 TRANSMITTER REAR PANEL

POWER INPUT JACK

Connects to the plug on the wall transformer power supply.

AUDIO INPUT

An RCA-type jack for connecting the transmitter to other sound systems. Accepts line-level,

unbalanced audio inputs.

ANTENNA OUTPUT CONNECTOR

This connector is defeated, as specified by FCC Rules. To use a remote antenna, contact your

dealer or Williams Sound.

RECEIVER MODEL R7

EAR JACK

3.5 mm mini earphone jack

OFF/ONINDICATOR LIGHT

Red LED which indicates receiver is “on” when lit. If the batteries are near end of life and the

LED turns off while the receiver is operating, approximately one hour of battery life remains.

VOLUME/ON-OFF CONTROL

Combination volume and on-off rotary control.

Williams Sound

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SYSTEM SET-UP AND INSTALLATION

STEP 1: INSTALL THE ANTENNA

The “rubber duckie” whip antenna fits into the hole on top of the transmitter and threads onto

amounting stud inside. Guide the antenna onto the stud and turn it clockwise to tighten. Do

not use excessive force to tighten the antenna. It only needs to be “finger-tight.”

STEP 2: CONNECT THE TRANSMITTER TO POWER

The T17 is supplied with a wall transformer power supply. Plug the transformer into a 120 V,

60 Hz wall outlet. Then plug the power cord into the “Power” connector on the rear panel of

the T17. The green indicator light on the front panel of the T17 should glow when the power

is connected.

There is no on/off switch. The T17 is designed to be continuously on. The wall

transformer can be plugged into a switched outlet that turns on when the other sound

equipment is turned on. If turning the T17 on creates a hum or buzz in the sound system, see

the Troubleshooting section on page 12.

STEP 3: MAKE AUDIO CONNECTIONS

3A:(IF YOU WILL BE USING THE T17 WITH ITS OWN MICROPHONE AS A STAND-ALONE SYSTEM)

Any Williams Sound microphone with a 3.5 mm mini phone plug can be used with the T17.

Plug the microphone into the “Mic” jack on the front panel of the T17.

The T17 is designed to supply positive DC voltage to the plug tip of 2-wire, “barefoot”

electret (power condenser) microphones. If you will be using the T17 with a non-Williams

Sound, Lo-Z (dynamic) microphone, this DC power should be turned off. (See page 8.) If

you use both the Microphone input and the Audio Input on the T17, the signals will be mixed

together.

3B:(IF YOU WILL BE USING THE T17 WITH AN EXISTING SOUND SYSTEM)

Refer to the figure 1 on page 4. Use the audio cable supplied to connect the T17 “Audio In”

jack to an appropriate audio output jack on the sound system mixer or amplifier. The T17 is

designed to work with an unbalanced, line-level audio signal. Suitable connections are:

Choice 1: TAPE OUT or LINE OUT Jack

Choice 2: BOOSTER or BRIDGING Jack

Choice 3: Speaker Terminal, 8 Ohm Tap

If your amplifier or mixer does not have RCA-type connectors, you can obtain adapters from

your Williams Sound Authorized Dealer or a local radio parts store. If the TAPE OUT jack is

already in use, a Y-Cord can be used to connect the T17 and a second device to the same

jack.

STEP 4: TEST THE SYSTEM

Use a receiver to test the system and set the input level control. See the section, Receiver Use

Instructions.

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TURNING OFF DC MICROPHONE POWER

The T17 is designed to supply positive DC voltage to the plug tip of 2-wire, “barefoot”

electret (power condenser) microphones. If you will be using the T17 with a non-Williams

Sound, Lo-Z (dynamic) microphone, this DC power should be turned off. (See Figure 4.) If

you use both the Microphone input and the Audio Input on the T17, the signals will be mixed

together.

Step 1: Unplug the power cord from the T17 and remove its 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 to locate the HD4 Jumper. This black jumper is also labeled on the

T17 circuit board.

Step 4: Pull the HD4 Jumper off the two pins it connects. DO NOT MAKE ANY OTHER

ADJUSTMENTS! For handy storage, simply turn the jumper sideways and place it on just

one of the two pins.

Step 5: Re-assemble the Transmitter.

Front

FIGURE 4: TURNING OFF DC MICROPHONE POWER

HD4 Jumper Location

This black jumper is also labeled on the

T17 circuit board

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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 VPE 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 VPE 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

shorter knob controls the microphone signal level. By adjusting the two volume controls, you

can hear a mixture of the transmitted signal and nearby sounds.

Williams Sound

Helping People Hear

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Note: Some users may not be helped by this system. Severe hearing loss may require

using the system with a telecoil coupler (i.e., Neckloop) and personal hearing aid.

USING A RECEIVER WITH A HEARING AID

Williams Sound PPA Receivers can be used with hearing aids using three different methods:

NECKLOOP TELECOIL COUPLER

Neckloops are cords which hang around the neck and couple magnetically with T-Coil

equipped hearing aids.

SILHOUETTE TELECOIL COUPLER

These telecoil couplers are worn behind the ear, right next to telecoil-equipped hearing aids.

DIRECT AUDIO INPUT (DAI) CORD

Direct Audio Input cords can be used with compatible hearing aids as well as with Cochlear

Implant Processors.

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