Williams Sound PPA R751 Manuel utilisateur

OVERVIEW The PPA R751 Monitor Receiver is designed for use with Williams Sound PERSONAL PA®

(PPA) Wide-band FM Transmitters. With the R751, small groups of people can listen to the

FM broadcast in a cry room, nursery, office area, or any location where a remote speaker is

needed and wiring is difficult to run.

USING THE R751 RECEIVER

1: Insert the ANT 026Antenna into the “Antenna” connection on the back of the receiver

speaker. (See figure 2.) Make sure it is fully inserted and tightly fitted.

2: Clip the antenna shaft into the plastic antenna clip.

3: Extend the antenna by grasping the tip and pulling straight upward.

4: Connect the speaker connection wires to the passive speaker.

5: Plug the AC power cord into an AC outlet and turn the power switch on.

6: Make sure your PPA Transmitter is on and has an active audio source.Adjust the volume

control on the R751 until you hear the broadcast.

Volume

Treble

Bass

3D On/Off

Power Switch

Power LED

Headphone

Jack

Channel

Designation

Tuning Coil

Antenna

Connection

Speaker Connection Wire

Antenna Clip

FM Monitor Receiver Model PPA R751

S/N : A0097

Date: 9909

Power: 120 VAC

This device complies with part 15 of the

FCC Rules. See instruction manual.

FCC ID: CNMR751

Antenna

Tune

Williams Sound Corp., Minneaplis, MN

60VA max

AC Power

RearFront

FIGURE 1: R751 RECEIVER SPEAKER FEATURES

PPA R751 Monitor Receiver

FM Listening System Receiver

Williams Sound

Helping People Hear

The R751 will normally receive the FM broadcast up to 150 feet away from the transmitter.

7: Adjust bass, treble, and “3D” controls to your preferences. The “3D” button boosts high

frequency response.

OPERATING FREQUENCY (CHANNEL)

The R751 is pre-tuned to one of 10 different frequencies in the 72–76 MHzAuditory

Assistance Band. The last letter in the part number indicates the frequency. For example, a

PPA R751E is set to Channel E, 72.9 MHz. Stickers on the bottom of the PPA Transmitter

and the back of the R751 Receiver indicate the frequency they were tuned to when they left

the factory.

The R751 frequency must match your transmitter frequency. If you experience interference

on the channel you ordered or if your receiver frequency does not match your transmitter

frequency, use the following directions to retune your R751.

To Change The Operating Frequency

Before changing the R751’s frequency, make sure your transmitter has been correctly tuned

to the channel of your choice. Refer to the instructions that came with your transmitter for

this procedure.

1: Place the R751 1–2 feet from the transmitter. Disconnect the antenna from the

transmitter; the R751 must be tuned under moderate or weak signal conditions.

Williams Sound

Helping People Hear

Speaker Connection Wire

Passive SpeakerReceiver Speaker

ANT 026

AC Power

FIGURE 2: CONNECTING THE PASSIVE SPEAKER & ANTENNA

Williams Sound

Helping People Hear

2: Turn on the transmitter and begin broadcasting a signal.

3: Insert a PLT 005 Tuning Wand (or similar plastic tuning wand) into the tuning coil on the

back of the R751. (See figure 1.)

4: It is very important that you gently turn the tool CLOCKWISE until you hear the signal,

or until the tuning coil stops. This screws the tuning coil inward as far as it will go. Do

not attempt to force it further.

5: If the tuning coil stops and you have not yet heard the signal, gently turn the tuning coil

COUNTER–CLOCKWISE until you hear the signal.

CLIPPING THE SPEAKER CORD

If you want to permanently discard the passive speaker and only use the receiver speaker,

you may want to shorten the speaker wire. Before clipping the wire, make sure the power is

off and the AC power cord has been unplugged from the outlet.

1: Separate the two strands all the way to the receiver speaker enclosure.

2: Using a wire cutter, carefully clip the strands to create a half inch “stagger” between

each length. This gap between wire ends will help prevent them from touching and

possibly creating a short circuit and receiver damage.

WARRANTY The Williams Sound R751 Monitor Receiver is engineered and designed to provide you with

many years of reliable service. Williams Sound warrants it against defects in materials and

workmanship for FIVE (5) years EXCEPT FOR earphones, headphones, rechargeable

batteries, chargers, cables, antennas, carry cases, and all other accessory products.Accessory

products carry a 90 day warranty.

If the product fails within the specified warranty period, Williams Sound will determine

whether to repair or replace the defective equipment. This warranty does not apply to

physical damage, abuse, mis-use, or products that have been modified.

If you experience difficulty with your system, call for Customer Assistance:

1-800-328-6190.

If it is necessary to return the system for service, a Williams Sound representative will give

you a Return Authorization Number (RA) and shipping instructions. Pack the system

carefully and send it to:

Your warranty becomes effective the date you purchase your system. Your returned warranty

card is our way of knowing when your warranty begins. It also gives us important

information about your system including the serial number. This information will help us

serve you better in the future. Please take a moment to complete and mail the attached card.

Thank you.

Williams Sound Corp.

10399 West 70th Street

Eden Prairie, MN 55344-3459 USA

Phone: 800-843-3544 / 952-943-2252

Fax: 952-943-2174

TTY: 952-943-9675

e-mail: [email protected]

Williams Sound Corp.

10399 West 70th St., Eden Prairie, MN 55344-345

U.S.A. 800-328-6190 / 952-943-2252 / FAX: 952-943-2174

www.williamssound.com

SPECIFICATIONSDimensions: 4.3" W x 8.9" H x 5.1" D (10.9 cm x 22.6 cm x 13 cm)

Weight: 5 lbs. (1.9 kg)

Color: Putty

Power: 120 VAC, 50 or 60 Hz, 60 VA max

FCC ID: CNMR751

Operating Frequency: Pre-Tuned, Adjustable, 72 MHz – 76 MHz

FM Deviation: Wideband, 75 kHz, 75 µS de-emphasis

AFC Range: ± 160 kHz

Sensitivity: 5 µV at 12 dB Sinad

Frequency Response: 115 Hz to 20 KHz, ± 3 dB Controlled by bass & treble

Signal-to-Noise Ratio: 50 dB at 10 µV

Audio Output Power: 20 W RMS total

Receive Antenna: 39" telescoping whip (ANT 026)

Loudspeakers, per speaker: 3" woofer, 1.25" tweeter, wide-range

Headphone Jack: 3.5 mm stereo

Controls: ON/OFF pushbutton switch, rotary volume, bass, treble,

and 3D pushbutton on/off

OPTIONAL ACCESSORIES

Remote Antennas: ANT 005 Coaxial Antenna

ANT 024 Wall Mount Dipole Antenna

Wall Mount Kit: Consult factory

Stand Mount Kit: Consult factory

FCC NOTICE This device complies with FCC Rules Part 15. Operation is subject to the following two

conditions: (1) This device may not cause harmful interference and (2) this device must

accept any interference that may be received, including interference that may cause undesired

operation.

COMPATIBLE TRANSMITTERS (US ONLY)

PPA T4

PPA T16

PPA T17

PPA T17–6

PPA T20 (wide-band channels)

PFM T16

PFM T30

PFM T31

Williams Sound ®

Helping People Hear

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