Williams Sound WIR 125 Guide

Williams Sound
®
Helping People Hear

MANUAL AND USER GUIDE
SoundPlus™Infrared System
Model WIR 125
Transmitter Model WIR TX295
Receiver Model WIR RX3
MAN 053H © 2005 Williams Sound Corp.

Williams Sound
®
Helping People Hear

2
CONTENTS PAGE
System Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Components . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Recycling Instructions . . . . . . . . . . . . . . . . . . . . . . . 5
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . 6
WIR TX295 Transmitter . . . . . . . . . . . . . . . . 6
WIRRX3Receiver ....................8
In Case of Difficulty . . . . . . . . . . . . . . . . . . . . . . . . 9
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
System Specifications . . . . . . . . . . . . . . . . . . . . . . 12

S YSTEM O VERVIEW
Thank you for purchasing the WIR 125 Infrared System from
Williams Sound Corp. Anyone needing auditory assistance to over-
come background noise, reverberation, or distance from the sound
source can benefit from the WIR 125.
You can use the WIR 125 for listening to the TV or other audio equip-
ment, or for hearing assistance in coference rooms. You can also use
your RX3 Receiver in most facilities which have an infrared trans-
mitter operating on 95 kHz, such as theaters, cinemas, or churches.
NOTE: The WIR 125 Infrared System is not recomended for use
with a PLASMA TV MONITOR.
If you have problems at anytime with the WIR 125, do not hes-
itate to call us toll-free at 1-800-843-3544.
S YSTEM C OMPONENTS
Williams Sound
®
Helping People Hear

3
•WIR RX3 Receiver
•9V Battery
•Earphone
• WIR TX295 Transmitter
•Power Supply
•TV Microphone
(MIC 084)
•1m Audio Cable with
dual RCA plugs (WCA 078)

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Helping People Hear
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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 ear-
phone 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 ear-
phone or headphone.
4. Do not allow children or other unauthorized persons to have
access to this product.
Battery Safety and Disposal:
CAUTION!
This product is supplied with disposable Alkaline batteries. Do
not attempt to recharge disposable batteries, which may explode,
release dangerous chemicals, cause burns, or other serious harm
to the user or 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.
BatteryRecycling 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.
8/11/05

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Helping People Hear
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6
S ETTING UP THE TX295 T RANSMITTER
The WIR TX295 Transmitter may be placed on top of a TV or
shelf. Place the TX295 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 any-
thing except glass. The maximum operating distance is approxi-
mately 30 feet (9 m).
Ideally, the TX295 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 TX295
Transmitter, but use only one transmitter in a room at the same
time. Otherwise, interference will occur.
Receiver
Charging 
Indicator
Right
Battery
Charging
Indicator
Left
Battery
Charging
Indicator
Infrared
Transmitting
Diodes
Infrared
Transmitting 
Diodes
(only for WIR 
RX95 Receiver)
RX95 Receiver Charging Cradle (not used in this system)
BAT AP97A
Battery
Charging Port
(not used in
this system)
BAT AP97A
Battery
Charging Port
(not used in
this system)

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STEP 1: CONNECT THE TRANSMITTER POWER SUPPLY
Plug the Power Supply cord into the “DC 12V” jack on the back of
the TX295. Then plug the Power Supply into an AC outlet.
STEP 2: SELECT AN OPERATING FREQUNCY FOR THE TX295 TRANSMITTER
To use the TX295 transmitter with the RX3 receiver, you must
first setup the transmitter to operate in 95 kHz mode. Referring to
the diagram above, slide the Stereo/Mono Selection Switch to the
“L” Left position for 95 kHz. The transmitter is now setup to
operate with the RX3 receiver.
STEP 3: CONNECT THE TRANSMITTER TO THE AUDIO SOURCE
If you are using the TV Microphone, plug it into the “Mic” jack
on the TX295 as shown. Use the Velcro strip supplied to attach the
microphone near the loudspeaker of your TV. The microphone will
allow you to play the TV at lower volume for other listeners and
will pick up other important sounds like the telephone or doorbell
ringing.
To use the supplied Audio Cable to connect the TX295 Transmitter
directly to TV, VCR, or other equipment output jacks:
Connect the LEFT RCA plug from the TV (or VCR) speaker
output into the LEFT RCA jack on the TX295 transmitter.
Remember,the Stereo/Mono Selection Switch must be in the
“L” Left position to transmit in 95 kHz!
When the Audio Inputs are used, the Mic input is automatically
disabled.
NOTE: The TX295 has an automatic shut-off feature that turns
the Transmitter off 90 seconds after the audio signal is no longer
present.
Power
Input ST = Stereo mode
L = 95 kHz mode
R = 250 kHz mode
Stereo/Mono Switch RCA Jack (connect from TV speaker output).
STEREO: Use both RIGHT and LEFT jack.
95 kHz or 250 kHz: Use LEFT jack only.
Mic
Jack
R
+
-
DC12V
L MIC
ST L R

8
S ETTING UP THE WIR RX3 R ECEIVER
1. INSTALL THE RECEIVER BATTERIES
Open the Battery Compartment on the RX3 Receiver and install a
9V carbon zinc battery. Be sure to insert the battery “plus” and
“minus” terminals correctly as shown on the yellow battery pull
tab. DO NOT force the battery in backwards. If you are using a
rechargeable, NiMH battery, charge the battery for 12–14 hours
before using the receiver.
Make sure the Receiver Volume Control Switch (Shown in fig-
ure below) is turned OFF while charging.
2. PLUG IN THE EARPHONE OR HEADPHONE.
Next, plug the earphone or headphone into the jack on top of the
receiver
3. USING THE RECEIVER
Rotate the Receiver Volume Control to turn the receiver on and
adjust the volume to a comfortable level. Make sure your TV or
audio source is turned on. You should be able to hear the signal
from the Transmitter in the Receiver. The infrared receiver “eye”
is located on the front of the RX3. Do not cover it up or you will
lose reception.
Be sureto turn the Receiver OFF when it is not in use.
Williams
Sound
Volume 
Control
& Switch
Earphone 
Jack
Infrared
"Eye"

I N C ASE OF D IFFICULTY
If the system does not seem to be functioning:
1. Read through the manual and user guide carefully to verify
proper setup and installation of your system.
2. Make sure that your television is plugged in and turned on.
3. Make sure that the TX295 Transmitter is plugged in and cor-
rectly connected to the TV or VCR’s audio output.
4. Make sure the TX295 is operating on 95 kHz, not stereo or 250
kHz mode. See Step 2 in Setting up the TX295 Transmitter.
5. If you’re using the TV Mic and not getting a signal: 1) Be sure
the audio cable is not plugged into the TX295; 2) Try turning
the TV volume up slightly; 3) Try positioning the TV mic
directly over the TV speaker.
6. Make sure that the RX3 Receiver has a working battery.
7. Make sure you are not covering the RX3’s infrared "eye.”
Remove any objects obstructing the line between the TX295
Transmitter and the RX3 Receiver.
8. If you’ve installed the TX295 Transmitter other than on
top of the TV, make sure that its front panel is facing the
RX3 Receiver.
9. If the system still does not function, call Williams Sound
Product Service at
1-800-843-3544.
Williams Sound
®
Helping People Hear

9

Williams Sound
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
10
LIMITED WARRANTY
Williams Sound products are engineered, designed and manufactured
under carefully controlled conditions to provide you with many years
of reliable service. Williams Sound warrants the SOUNDPLUS™
Infrared System against defects in materials and workmanship for
FIVE (5) years. During the first five years from the purchase date, we
will promptly repair or replace the SoundPlus™Infrared System.
Microphones, earphones, headphones, batteries, chargers, cables, carry
cases, and all other accessory products carry a 90-day warranty.
WILLIAMS SOUND HAS NO CONTROL OVER THE CONDI-
TIONS UNDER WHICH THIS PRODUCT IS USED. WILLIAMS
SOUND, THEREFORE, DISCLAIMS ALL WARRANTIES NOT
SET FORTH ABOVE, BOTH EXPRESS AND IMPLIED, WITH
RESPECT TO THE SOUNDPLUS™INFRARED SYSTEM,
INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRAN-
TY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. WILLIAMS SOUND SHALL NOT BE LIABLE TO
ANY PERSON OR ENTITY FOR ANY MEDICAL EXPENSES OR
ANY DIRECT,INCIDENTAL OR CONSEQUENTIAL DAMAGES
CAUSED BY ANY USE, DEFECT, FAILURE OR MALFUNCTION
OF THE PRODUCT, WHETHER A CLAIM FOR SUCH DAMAGES
IS BASED UPON WARRANTY, CONTRACT, TORT OR OTHER-
WISE. THE SOLE REMEDY FOR ANY DEFECT, FAILURE OR
MALFUNCTION OF THE PRODUCT IS REPLACEMENT OF THE
PRODUCT. NO PERSON HAS ANY AUTHORITY TO BIND
WILLIAMS SOUND TO ANY REPRESENTATION OR WARRAN-
TY WITH RESPECT TO THE SOUNDPLUS™INFRARED
SYSTEM. UNAUTHORIZED REPAIRS OR MODIFICATIONS
WILL VOID THE WARRANTY.
The exclusions and limitations set out above are not intended to, and
should not be construed so as to contravene mandatory provisions of
applicable law.If any part or term of this Disclaimer of Warranty is
held to be illegal, unenforceable or in conflict with applicable law by
acourt of competent jurisdiction, the validity of the remaining por-
tions of this Disclaimer of Warranty shall not be affected, and all
rights and obligations shall be construed and enforced as if this
Limited Warranty did not contain the particular part or term held to be
invalid.

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If you experience difficulty with your system, call Toll-Free for
Customer Assistance:
1-800-843-3544
If it is necessary to return the system for service, your Customer
Service Representative will give you a Return Authorization Number
(RA) and shipping instructions.
Pack the system carefully and send it to:
Williams Sound Corp.
Attn: Repair Dept.
10321 West 70th Street
Eden Prairie, MN 55344

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12
WIR 125 L ISTENING S YSTEM S PECIFICATIONS
WIR TX295 Transmitter:
Size, Weight, Color: 6.25”L x 3.25”W x 1.25”H (15.9cm x
8.3cm x 3.2cm), 5.1oz. (140g), Gray
Power Input: 12 VDC (center is positive) on DC
connector, 200 mA Class II wall
transformer
TFP 024 Power Supply: North
America: 120VAC, 60Hz, UL/CSA
TFP 032 Power Supply, 2 pin Euro
mains plug, 230VAC, 50-60 Hz, CE
TFP 033 Power Supply, 3 pin UK
mains plug, 230VAC, 50-60 Hz, CE
Subcarrier Frequency: 95 kHz or stereo or 250 kHz
Auto Power On/Off: Transmitter shuts off infrared after 1.5
minutes when audio signal is
removed. Battery charging functions
remain on full time.
Microphone Input: 3.5 mm jack for MIC 084 Electret TV
Microphone, 1.5 kΩ
Line Inputs: 2 RCA jacks for mono or stereo line-
level sources. 200 mV min. to 10 V
rms max. input level, 5.1 kΩ
Automatic Level Control: 35 dB compression range
Infrared LEDs, Pattern: 8 IR LEDs, 45 degree cone-shaped
coverage pattern to 6dB intensity,
30ft. (9m) line of sight
Charging Ports: Charges one WIR RX295 Receiver
(not included)
Warranty: 5years*

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RX3 Receiver:
Size and Weight: 3.62"L x 2.36"W x 0.86”H (9.2 cm
x6cm x 2.2 cm), 3.2 oz (90 g) with
battery
Material and Color: Polypropylene, Gray
Battery Type: 9 Volt, Carbon Zinc, Alkaline, or
BAT 003 NiMH 7-cell rechargeable
Battery Life: 15 hrs with Eveready 216, 35 hrs
with Eveready 522, 6 hrs/charge
with BAT 003
Charging Jack: Earphone jack is used for charging
Modulation Frequency: 95 kHz FM, 50 µS de-emphasis
Frequency Response: 200 Hz to 8 kHz, ± 4 dB
Signal to Noise Ratio: 60 dB with WIR TX295, 70 dB
with WIR TX10
Controls: Combination volume/On-Off wheel
Audio Output: 3.5 mm mono mini phone jack, 250
mW maximum into 16Ω
Acoustic Output: 105 dB MAX SSPL90, 102 dB HF
AVG SSPL90 with EAR 013, 2 cc
coupler
Compatibility: Compatible with most wide-band
95kHz IR Transmitters
Warranty: 5years*
On Indicator: Red LED
*90 days on battery,power supply and cords.

Williams Sound Corp.
10321 West 70th St., Eden Prairie, MN 55344-3459
U.S.A. 800-328-6190 / 952-943-2252 / FAX: [phone]
www.williamssound.com
©2005, Williams Sound Corp. MAN 053H