Williams Sound PPA R751 Manuale utente
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
E
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
9
U.S.A. 800-328-6190 / 952-943-2252 / FAX: 952-943-2174
www.williamssound.com
© 2001, Williams Sound Corp. MAN 099B
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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