Radio Shack 15-1974 User manual

©2003 RadioShack Corporation.
All Rights Reserved.
RadioShack and RadioShack.com are trademarks
used by RadioShack Corporation.
OWNER’S MANUAL —
Please read before using this equipment.
www.radioshack.comSM
This wireless transmitter and receiver system
use the latest 5.8 GHz technology that travels
through walls, floors, ceilings and other
obstacles, delivering high quality sound for
your home theater system’s rear surround
speakers. Using this wireless system, you will
experience movie theater quality sound in
your own home using your current home
theater surround system. We have designed
this system for use with your surround sound
home theater system to enhance the quality
of the sound and balance coming from your
speakers. You can now eliminate running
long speaker wires through your rooms, while
enhancing the sound coming from those
speakers.
How It Works
The transmitter converts the audio signal
from your audio source into a 5.8GHz radio
frequency and transmits it to the receiver.
The receiver will pick up the best signal from
one of its two antennas and convert the
signal back to its original form. Using a
powerful amplifier, the signal is passed to
your connected rear surround speakers. The
result is an enhanced sound quality resulting
in a theater quality surround sound
experience.
This system is compatible with most audio
sources such as televisions, VCRs, stereo
receivers/amplifiers, CD players, and
personal stereos. This unit allows you to
listen to wired speakers in any room in the
house when a two-channel source is
connected to the transmitter. The audio link
system also tracks the volume setting of your
audio source, so that when you increase or
decrease the volume on the audio source,
the link’s connected speakers respond
accordingly.
Some of this system’s other features include:
• 6 user-adjustable channels
• 2 diversity receiver antennas for optimal
audio reception.
• Adjustable speaker and line level input
control
• 256 option personal ID Code
• Ideal for Dolby 5.1 Digital, Pro Logic II,
DTS, SCAD and DVD Audio Systems
• Provides digital transmission for superb
audio clarity
• Immune to interference from microwave
ovens and other popular 2.4GHz
equipment
• Signal range of 30 feet
RECEIVER
TRANSMITTER
STANDBY / ON/OFF — Press to toggle
between standby mode and power on.
LED — Lights redwhenthe transmitteris
in power on mode,and turns green when
in standby mode.
POWER/PUSH OFF —
Press to power the receiver
on or off.
Power LED— Lights
red when the
receiver is powered
on.
Signal LED — This green LED flashes when
the receiver is searching for a signal from the
transmitter. It glows steadier and brighter as
the signal strength increases.
VOLUME — Turn to
adjust sound level of the
connected surround
speakers. You may
need to adjust your A/V
receiver’s volume for
balance.
PACKAGE CONTENTS
• Transmitter
• Speaker wire (for transmitter only)
• Receiver
• AC adapter
• Adjustable stand
• Owner’s Manual
• Warranty
The lightning symbol is intended to alert you to the
presence of uninsulated dangerous voltage within this
product’s enclosure that might be of sufficient
magnitude to constitute a risk of electric shock. Do not
open the product’s case.
The exclamation symbol is intended to inform you that
important operating and maintenance instructions are
included in the literature accompanying this product.
WARNING: To reduce the risk of fire or shock hazard,
do not expose this product to rain or moisture.
CAUTION
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE COVER OR BACK. NO USER-
SERVICEABLE PARTS INSIDE. REFER SERVICING TO
QUALIFIED PERSONNEL.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
!
!IMPORTANT !
If an icon appears at the end of a paragraph, go to the box on that page with the corresponding icon for
pertinent information.
o— Warning !— Important Ô—Note
Wireless 5.8 GHz Digital Audio Lin
k
15-1974

2
IMPORTANT SAFETY INFORMATION
FOR YOUR SAFETY, READ AND RETAIN ALL SAFETY AND OPERATING
INSTRUCTIONS. HEED ALL WARNINGS IN THIS MANUAL AND ON THE UNIT.
POWER SOURCE
To avoid any malfunctions of the unit, and to protect against electric shock, fire or personal
injury, please observe the following
• This system has been designed to work with 120-volt AC current. Connection to a line
voltage other than that may create a safety and fire hazard and may damage the system. If
you are unsure of the type of power supply to your home, consult your local dealer or
power company.
• Hold the plug firmly when connecting or disconnecting the power cord to the wall outlet.
• Do not run power cords under rugs or carpets or place heavy objects on them.
• Damaged or deformed power cords are hazardous and should be replaced immediately by
a qualified service technician.
LOCATION
• Air vents are provided in the cabinet to prevent excessive temperatures inside the unit. Do
not place this unit in closed spaces, cover it, or otherwise block the vents.
• Do not place this unit in direct sunlight, or near heat sources.
• Keep this unit away from strong magnetic objects.
• Do not use the unit in a car. The operation can not be guaranteed.
CARE
• Do notinsert or drop anything into this unit throughthe air ventsas this couldcause serious
damage, possibly resulting in fire.
• Do not place any object containing water or other liquids on this unit. In the event that liquid
should enter the cabinet, unplug this unit immediately and contact the retailer or service
center immediately.
• Do not remove the cabinet. Touching parts inside the cabinet could result in electric shock
and damage to the unit.
NONUSE PERIODS
• When the unit is not being used, turn the power off.
• When left unused for a long period of time, the unit should be unplugged from the
household AC outlet.
VOLUME CONTROL
• Do not turn up the volume while listening to a portion with very low level input or no audio
signal. The speaker may be damaged when a peak level portion is played.
CLEANING
• Unplug the unit before cleaning.
• When the system gets dirty, wipe it with a clean, soft cloth. If necessary, wipe it with a soft
cloth, slightly dampened with mild soapy water, then a fresh cloth with clean water. Wipe
dry immediately with a dry cloth.
• Never use benzene, aerosol cleaners, thinner, alcohol or any volatile cleaning agent.
• Do not use abrasive cleaners, as they may damage the finish.
• Avoid spaying insecticide near all components.
SERVICE
• Do not open the cabinet of any components. There are no user-serviceable components in
this product. Opening the cabinets may present a shock hazard, and any modification to
this product will void your guarantee.
• Do not attempt to service the unit yourself. If water or any metal objects such as paper
clips, wire or staples accidentally fall inside, disconnect the unit from the power source
immediately, and consult an authorized service center.
• Please refer any service to the nearest RadioShack store.
SAVE THESE INSTRUCTIONS

3
SET UPOVERVIEW
Your new Digital Audio Link Wireless 5.8GHz is easy to set up using your existing Home
Theater or stereo components. This system is compatible with most audio source. Please take
a few minutes to read this manual before you start.
1. Unpack the wireless system and accessories.
2. Select the best location to set up the transmitter and receiver.
3. Connect the transmitter to your audio source and power it on.
4. Connect the receiver to your rear surround speakers and power it on.
5. Adjust the antennas for best reception.
6. Set the input level on the transmitter for best sound level.
7. Adjust the receiver volume to the desired level.
PLACEMENT
It is best to place the transmitter and receiver as high as possible in an area where there will be
the least traffic. Ô
We recommend you place the transmitter on top of your audio source or stereo stand. For use
with a home theater system, hook the receiver up to the rear surround speakers.
CONNECTING THE TRANSMITTER
Connect the transmitter to your audio device using speaker wires or stereo cables. Do not use
both speaker wire and stereo cables. Do not connect speakers to this transmitter. Ô
1. Power off the audio source or A/V receiver before making any connections.
If your audio source’s output uses stereo jacks connect the Left / Right LINE OUT from the
audio source to the Left / Right LINE IN on the transmitter with stereo cables (not supplied).
Match Left to Left and Right to Right.
If you use your A/V receiver or Home Theater as the audio source you can connect the
surround (rear) speaker outputs to the transmitter’s HI LEVEL AUDIO IN with the supplied
speaker wire. Match polarity (+ / –) and Left /Right appropriately.
2. Connect the supplied AC adapter’s barrel-shaped plug into the DC 9V jack, and then plug
the transformer into a standard AC outlet.
3. Set the level adjust to the minimum.
4. Push STANDBY / ON /OFF to toggle between power on (the LEDlights red) and standby (the
LED lights green).
ÔNOTES Ô
Placement
• We have included a unique, adjustable stand
designed to cradle either unit, both vertically
and horizontally depending on what best
adapts to your environment.
• You may find that reception is improved when
the units are moved closer together, but not
less than three feet apart.
• This system will not work properly from within
an enclosed metal cabinet.
Connecting the Transmitter
• Power off the audio source, A/V receiver or
Home Theater before making any
connections.
• This system is not compatible with 6.1
systems.
TRANSMITTER REAR VIEW
Antenna — Rotate
180 degrees
horizontally, or tilt
back and forth to
adjust the signal
sent to the receiver.
DC 9V — Connect the
supplied AC adapter to
the transmitter at this DC
input jack
LEVEL ADJUST — Turn to
adjust the sound quality.
LINE IN — Connect the LINE OUT
(Left and Right) from an audio source
to these inputs using stereo cables
(not supplied).
HI LEVEL AUDIO IN — Connectthe surround
or rear speaker outputs from your audio
source (A/V receiver or Home Theater
system) to these inputs using the supplied
speaker wire.
CH— Set theswitchesof
this channel selector to
choose one of six preset
frequencies.

4
CONNECTING THE RECEIVER
1. Connect your left and right rear surround speakers using speaker wire (not supplied).
2. Set the volume control to low.
3. Plug the AC power cord into the nearest wall outlet.
4. Make sure the transmitter is either in standby mode or powered on before turning the
receiver on.
The red LED will be illuminated on both units. The green LED on the receiver will flash
indicating it is searching for the transmitter signal and flicker until it finds a clear signal from
the transmitter, at which time the receiver’s LED glows solid green.
5. If you have a clear signal, adjust the volume control on the receiver so the audio level
coming from your rear surround speakers is balanced with the rest of your system.
6. If there is noise or distortion of the sound, you will need to adjust the antenna and the
transmitter input level.
ADJUSTING THE ANTENNAS
The transmitter and receiver are provided with diversity antennas that fold up or down and
rotate through a horizontal range of 180 degrees for flawless audio reception and maximum
positioning options, enabling either or both the transmitter and receiver to be positioned
vertically or horizontally. The receiver has two antennas to maximize reception.
• Make sure that the flat side of the antennas on both the transmitter and receiver are facing
toward each other.
• The maximum transmission range (up to 30 feet) is achieved when there is a clear line of
sight between the transmitter and receiver antennas.
• You may wish to position the antennas so they face the ceiling at a 45 degree angle,
reflecting the transmitter signals to the receiver.
SETTING THE INPUT LEVEL
The input level is located on the back panel of the transmitter which can be used to adjust either
the line input or speaker input to the transmitter. The input level balances low level input signals
between the audio source and the transmitter. If there is distortion from your surround speakers
when you raise the main volume of your system, the input level should be adjusted down. If the
input level is set too low, the surround speakers will not getenough power to raise thevolume to
a desired level.
1. Set the front speaker volume level to slightly higher than desired to establish a proper
output signal level for your rear speaker output.
RECEIVER
REAR VIEW
AUDIO OUT — Connect your
surround speakers to these outputs
with speaker wire (not supplied).
Antennas — Rotate either or both antennae to adjust
reception.
AC power cord
Antenna cradles — Fold antennas to rest in these
cradles when they are not in use.

5
2. Set the transmitter input level to the minimum setting.
3. Set the receiver volume control to about three quarters the volume level.
4. Adjust the transmitter input level to obtain the highest sound quality without distortion.
5. Adjust the receiver volume control to balance the rear sound with the rest of the speakers.
CHANGING THE CHANNEL FREQUENCY
To minimize interference from other 5.8GHz systems such as a 5.8 GHz cordless phone or a
wireless LAN in your environment, this system allows the user to select one of six preset
channels. If you should experience interference from another 5.8GHz system, select a different
transmission channel. The channel selector is located on the back panel of the transmitter.Ô
1. With both the receiver and transmitter plugged in and powered on, push the power button
to put the transmitter in standby mode.
2. Use a pointed object such as a pen or straightened paper clip to set the channel selector
on the transmitter to one of the six available channels.
3. Press the power button again to set the transmitter so that the unit will reset when it powers
back on.
4. The receiver will automatically search for the selected channel. The green LED on the front
panel of the receiver will flash to indicate the receiver is searching for the transmitter signal.
5. Keep switching channels on the transmitter until the receiver has a clear signal and the
green LED glows brightly.
SETTING APERSONAL ID CODE
If you should have another unit or system operating in your home, this feature has been added
to ensure that the transmitted signal is only received by the receiver set to the same code as the
transmitter. In order to receive audio signal only from your transmitter, you have the option of
selecting from 256 possible combinations, to set a personal ID code for your wireless system. If
you have two transmitters setup near each other, you may also need to change the channel
frequency for better reception.
1. Make sure both the transmitter and the receiver are unplugged from the AC power source.
Channel # Position 1 Position 2 Position 3
1ON ON ON
2OFF ON ON
3ONOFFON
4OFF OFF ON
5ON ONOFF
6OFF ON OFF
ÔNOTES Ô
• Be sure to turn the transmitter power back on
after you have changed each channel. The
green led on the receiver will also flash when
the transmitter is in standby mode.
• The receiver’s green LED will vary from a
very dim, flickering green when the signal
quality is poor to a bright, steady green when
the signal is strong.
• If the receiver fails to find any of the available
six channels, try cycling the receiver’s power
off and on, and repeating steps 1 through 4.
TRANSMITTER
REAR VIEW