Williams Sound WIR 250 Guide

Manual and User Guide
Model WIR 240
Model WIR 250
Transmitter Model WIR 240
Receiver Model WIR RX240 or
Receiver Model WIR RX250
TV Talker Infrared System
MAN 147E ©2011 Williams Sound

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Contents
System Overview .................................................................................. 3
System Components ............................................................................ 3
Safety Information ................................................................................. 4
Recycling Instructions ........................................................................... 5
Operating Instructions .......................................................................... 6
WIR TX240 ................................................................................. 6
WIR RX240 ............................................................................... 10
WIR RX250 ............................................................................... 12
In Case of Difculty ............................................................................. 14
Warranty ............................................................................................. 15
System Specications ........................................................................ 17

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System Overview
Thank you for purchasing the TV Talker Infrared System from
Williams Sound. Anyone needing auditory assistance to overcome
background noise, reverberation, or distance from the sound source can
benet from the TV Talker Infrared System.
You can use the TV Talker Infrared System for hearing assistance in
conference rooms, listening to the TV, or with other audio equipment. The
TX240 Transmitter features an Automatic Level Control to adjust for different
audio signal levels and to maintain a comfortable listening level.
Please read through this manual carefully for proper setup
and installation instructions.
NOTE: The TV Talker Infrared System is not recommended 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.
System Components
• WIR TX240 Transmitter
• Power Supply - TFP042
• TV Microphone (MIC 084)
• WIR RX240 or WIR RX250
• 1m Audio Cable with dual RCA plugs (WCA 078)
• Two Rechargeable Batteries (BAT AP07D)

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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.

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Setting up the TX240 Transmitter
NOTICE: THE RECHARGEABLE BATTERIES ARE SHIPPED IN A DIS-
CHARGED STATE. THE BATTERIES MUST BE CHARGED OVERNIGHT
BEFORE USING THE TV TALKER INFRARED SYSTEM.
The WIR TX240 Transmitter may be placed on top of a TV or shelf. Place
the TX240 Transmitter where it is clearly visible from your listening position.
Infrared light behaves like visible light, so it is blocked by solid objects.
This connes 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 TX240 Transmitter should be at ear-level height or above.
The infrared light pattern is much like a oodlight “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 TX240 Transmitter, but use
only one transmitter in a room at the same time. Otherwise, interference
will occur.

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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
TX240. 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 TX240 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.
Step 2: Connect the Transmitter to the Audio Source
Use the supplied red and white RCA audio cables to connect the TX240
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.
TX240 Transmitter (Rear View)
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 left.
❺
❶ ❸
❹
❷

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Step 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.
Step 3: Select Stereo or Mono Operation
Note: Choose 1 of 3 transmitter setup options below and on page
9. Verify receiver compatibility on left.
For the highest quality, stereo is the recommended mode of operation.
STEREO OPERATION:
(HIGHEST AUDIO QUALITY)
Connect the RCA plugs from the TV or VCR
audio output into the LEFT and RIGHT RCA
jacks on the TX240 Transmitter ❸. Next, slide
the stereo/mono switch ➋ on the TX240
Transmitter to the stereo “OO ” position. Your
transmitter is now set for stereo operation.
RX240
-or-
RX250
Compatible with:

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2.3 MHz (MONO) OPERATION:
Connect the LEFT RCA plug from the TV or
VCR audio output into the LEFT RCA jack on
the TX240 Transmitter ❸ (the right jack should
be left unplugged). Next, slide the stereo/
mono switch to the “O” mono position ➋. The
transmitter is now set for 2.3 MHz operation.
2.8 MHz (MONO) OPERATION:
Connect the LEFT RCA plug from the TV or
VCR speaker output into the RIGHT RCA jack
on the TX240 Transmitter ❸ (the left jack should
be left unplugged). Next, slide the stereo/
mono switch ➋ to the “O” mono position. The
transmitter is now set for 2.8 MHz operation.
Step 3: (continued)
If an RCA connection is unavailable, use the provided TV MICROPHONE
❺ to pickup the desired sound source. Plug in the microphone into the Mic
Jack on the rear of the TX240 Transmitter ❹. Use the velcro strip supplied
to attach the microphone near the loudspeaker ❹ of your TV or stereo.
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.
RX240
-or-
RX250
Compatible with:
RX240
-or-
RX250
Compatible with:

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Setting up the RX240 Receiver
Step 1: Install the Receiver Batteries
Insert the rechargeable battery into the bottom of the RX240 Receiver
(see page 11). Place the receiver into the charger cradle built into the top
of the TX240 Transmitter and let charge overnight. The spare battery can
be plugged into the charging port located on either side of the transmitter.
By keeping the spare battery charged, you can easily swap batteries
when the one in use runs out and always have a fresh battery ready. A
fully charged battery will operate the receiver for approximately 7 hours,
depending on the volume setting. The battery should be changed when
you notice the sound getting weak and noisy. The batteries may be left
charging when not in use.
Step 2: Using the WIR RX240 Receiver
The RX240 will automatically congure itself for stereo or mono (2.3 or 2.8
MHz) operation depending on the setup chosen for the TX240 Transmitter.
To use the system, rst check to make sure your TV or audio source is
turned ON. Make sure the receiver battery is fully charged. The RX240
Receiver has an automatic on/off function. When you put the receiver on,
it turns on. When you take the receiver off, it turns off. Rotate the volume
control to adjust the volume to a comfortable level.
IMPORTANT: A dual detector infrared “eye” is located in the front
of the receiver. Do not cover it up or you will lose reception. Make
sure the “TV TALKER” lettering is facing away from you when you
put the receiver on.
Return the receiver to the charger when it is not in use.
Additional Receiver Adjustments
Balance Control: Use a small screwdriver to adjust the loudness balance
between the left and right earphones. See page 11.