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MANUAL AND USER GUIDE
SoundPlus™TV Infrared System
Model WIR 237
Model WIR 238
Model WIR 239
Transmitter Model WIR TX238
Receiver Model WIR RX237 or
Receiver Model WIR RX238 or
Receiver Model WIR RX239
MAN 120C © 2007 Williams Sound Corp.
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CONTENTS PAGE
System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Components . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Recycling Instructions . . . . . . . . . . . . . . . . . . . . . . . 5
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . 6
WIR TX238 Transmitter . . . . . . . . . . . . . . . . 6
WIR RX237 Receiver . . . . . . . . . . . . . . . . . 10
WIR RX238 Receiver . . . . . . . . . . . . . . . . . 13
WIR RX239 Receiver . . . . . . . . . . . . . . . . . 15
In Case of Difficulty . . . . . . . . . . . . . . . . . . . . . . . 17
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
System Specifications . . . . . . . . . . . . . . . . . . . . . . 20
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S
YSTEMOVERVIEW
Thank you for purchasing the SoundPlus™TV Infrared System
from Williams Sound Corp. Anyone needing auditory assistance to overcome background noise, reverberation, or distance
from the sound source can benefit from the SoundPlus
™
TV
Infrared System.
You can use the SoundPlus™TV Infrared System for hearing
assistance in conference rooms, listening to the TV, or with
other audio equipment. The TX238 Transmitter features an
Automatic Level Control to adjust for different audio signal
levels and to maintain a comfortable listening level.
NOTE: The SoundPlus
™
TV Infrared System is not recom-
mended for use with a PLASMA TV MONITOR.
If you have problems at anytime with these systems, do not
hesitate to call us toll-free at 1-800-843-3544.
S
YSTEMCOMPONENTS
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• WIR RX237 or
WIR RX238 or
WIR RX239 Receiver
• 1m Audio Cable with
dual RCA plugs (WCA 078)
• Two Rechargeable Batteries
(BAT AP97A)
• WIR TX238 Transmitter
• Power Supply
• TV Microphone (MIC 084)
Please read through this manual carefully
for proper setup and installation instructions.
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SAFETY INFORMATION
Hearing Safety:
CAUTION!
This product is designed to amplify sounds to a high volume
level which could potentially cause hearing damage if used
improperly.
To protect your hearing and the hearing of others:
1. Make sure the volume is turned down before putting on the
earphone or headphone before adjusting the volume to a
comfortable level.
2. Set the volume level at the minimum setting that you
need to hear.
3. If you experience feedback (a squealing or howling sound),
reduce the volume setting and move the microphone away
from the earphone or headphone.
4. Do not allow children or other unauthorized persons to
have access to this product.
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Pacemaker Safety:
CAUTION!
1. Before using this product with a pacemaker or other medical
device, consult your physician or the manufacturer of your
pacemaker or other medical device.
2. If you have a pacemaker or other medical device, make sure
that you are using this product in accordance with safety
guidelines established by your physician or the pacemaker
manufacturer.
RECYCLING INSTRUCTIONS
Help Williams Sound protect the environment! Please take the
time to dispose of your equipment properly.
Product Recycling for Customers in the European Union:
Please do NOT dispose of your Williams Sound equipment in
the household trash. Please take the equipment to an electronics recycling center; OR, return the product to the factory for
proper disposal.
Battery Recycling for Customers in the European Union:
Please do NOT dispose of used batteries in the household trash.
Please take the batteries to a retail or community collection
point for recycling.
04/04/07
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S
ETTING UP THE
TX238 T
RANSMITTER
NOTICE: T
HE RECHARGEABLE BATTERIES ARE SHIPPED IN A DIS
-
CHARGED STATE
. T
HE BATTERIES MUST BE CHARGED OVERNIGHT
BEFORE USING THE
S
OUNDPLUS
™
TV I
NFRAREDSYSTEM
.
The WIR TX238 Transmitter may be placed on top of a TV or
shelf. Place the TX238 Transmitter where it is clearly visible
from your listening position.
Infrared light behaves like visible light, so it is blocked by solid
objects. This confines the signal to the room where the transmitter is located. The transmitter cannot be placed inside or
behind anything except glass. The maximum operating distance
is approximately 30 feet (9 m).
Ideally, the TX238 Transmitter should be at ear-level height or
above. The infrared light pattern is much like a floodlight
“cone” as it leaves the transmitter, with the best reception
inside the cone.
Sunlight can cause infrared interference in the form of a buzz,
hiss, or static. Thus, the system cannot be used outdoors and
may not work properly inside if a lot of direct sunlight is present. Closing drapes or blinds will help if sunlight is a problem.
Any number of receivers may be used with the TX238
Transmitter, but use only one transmitter in a room at the same
time. Otherwise, interference will occur.
Receiver Charging Cradle
Battery
Charging
Port
Left
Battery
Charging
Indicator
Infrared
Transmitting
Diodes
Receiver
Charging
Indicator
(only for WIR
RX237, RX238,
RX239 Receiver
Infrared
Transmitting
Diodes
Right
Battery
Charging
Indicator
Battery
Charging
Port
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TV Microphone
If an RCA connection is unavailable, use the provided TV microphone to pickup the sound source
directly from the TV loud speaker as shown on right.
TX238 Transmitter (Rear View)
STEP 1: CONNECT THE TRANSMITTER POWER SUPPLY
Plug the Power Supply cord into the “DC 12V” jack 1 on the
back of the TX238. Then plug the Power Supply into an AC
outlet. When the receiver is placed into the charging cradle built
into the top of the transmitter, the center charging indicator on
the front of the TX238 will turn on. When the spare battery is
plugged into the left or right battery charging port on the transmitter, the corresponding charge indicator light will turn on.
S
TEP 2: CONNECT THE TRANSMITTER TO THE AUDIO SOURCE
Use the supplied red and white RCA audio cables to connect the
TX238 Transmitter directly to the TV, VCR, or stereo “AUDIO
OUT” jacks. If your television does not have “AUDIO OUT”
jacks, you will need use the supplied TV microphone. See page
9 for TV microphone instructions.
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1
2
3
4
OR
TX238
®
(HIGHEST AUDIO QUALITY)
Connect the RCA plugs from the TV or VCR
audio output into the LEFT
and RIGHT RCA
jacks on the TX238 Transmitter
3. Next, slide the
stereo/mono switch 2on the TX238 Transmitter
to the stereo “ ” position. Your transmitter is
now set for stereo operation.
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STEP 3: SELECT STEREO OR MONO OPERATION
Compatible with:
RX237
-or-
RX238
STEREO OPERATION:
Note: Choose 1 of 3 transmitter setup options below and on
page 9. Verify receiver compatibility on left.
Important: If your system is packaged with the WIR RX239
(neckloop) Receiver, you must setup the WIR TX238
Transmitter to operate in 2.3 MHz
(mono) mode. See 2.3 MHz
(mono) instructions on page 9. The WIR RX239 (neckloop)
Receiver will NO
T work while the transmitter is in stereo or
2.8 MHz mode.
If your system is packaged with the WIR RX237 or WIR RX238
Receiver, you can choose to operate the WIR TX238 in stereo OR
mono (2.3 or 2.8 MHz) operation. For the highest quality, stereo is
the recommended
mode of operation.
S
TEP 2 (CONTINUED):
NOTE: Some televisions have FIXED output and others have
VARIABLE output. If available, FIXED output should be
selected. Consult your television manual for more information.
“Fixed” output means the volume on the television will not
change when the volume is increased, decreased, or muted.
“Variable” output means the volume on the television will
change when it is increased, decreased, or muted. If variable output is the only output available on your television, we recommend using the supplied TV microphone. See page 9 for TV
microphone instructions.
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