Radio Shack Range 15 1974 User Guide

Wireless 5.8 GHz Digital Audio Link  
OWNER’S MANUAL —  
Please read before using this equipment.  
15-1974  
VOLUME — Turn to  
adjust sound level of the  
connected surround  
speakers. You may  
need to adjust your A/V  
receiver’s volume for  
balance.  
POWER/PUSH OFF —  
Press to power the receiver  
on or off.  
PACKAGE CONTENTS  
RECEIVER  
Transmitter  
Speaker wire (for transmitter only)  
Receiver  
AC adapter  
Adjustable stand  
Owner’s Manual  
Warranty  
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.  
STANDBY / ON/OFF — Press to toggle  
between standby mode and power on.  
LED — Lights red when the transmitter is  
in power on mode, and turns green when  
in standby mode.  
TRANSMITTER  
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.  
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.  
WARNING: To reduce the risk of fire or shock hazard,  
do not expose this product to rain or moisture.  
How It Works  
CAUTION  
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.  
• Adjustable speaker and line level input  
control  
RISK OF ELECTRIC SHOCK  
!
DO NOT OPEN  
• 256 option personal ID Code  
CAUTION: TO REDUCE THE RISK OF ELECTRIC  
SHOCK, DO NOT REMOVE COVER OR BACK. NO USER-  
SERVICEABLE PARTS INSIDE. REFER SERVICING TO  
QUALIFIED PERSONNEL.  
• Ideal for Dolby 5.1 Digital, Pro Logic II,  
DTS, SCAD and DVD Audio Systems  
• Provides digital transmission for superb  
audio clarity  
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.  
• Immune to interference from microwave  
ovens and other popular 2.4GHz  
equipment  
The exclamation symbol is intended to inform you that  
important operating and maintenance instructions are  
included in the literature accompanying this product.  
!
• Signal range of 30 feet  
© 2003 RadioShack Corporation.  
All Rights Reserved.  
RadioShack and RadioShack.com are trademarks  
used by RadioShack Corporation.  
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.  
— Warning  
— Important  
Ô Note  
!
o
 
SET UP OVERVIEW  
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  
Ô NOTES Ô  
the least traffic. Ô  
Placement  
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.  
We have included a unique, adjustable stand  
designed to cradle either unit, both vertically  
and horizontally depending on what best  
adapts to your environment.  
CONNECTING THE TRANSMITTER  
You may find that reception is improved when  
the units are moved closer together, but not  
less than three feet apart.  
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  
TRANSMITTER REAR VIEW  
This system will not work properly from within  
an enclosed metal cabinet.  
LINE IN — Connect the LINE OUT  
DC 9V — Connect the  
Antenna — Rotate  
180 degrees  
horizontally, or tilt  
back and forth to  
adjust the signal  
sent to the receiver.  
(Left and Right) from an audio source  
to these inputs using stereo cables  
(not supplied).  
supplied AC adapter to  
the transmitter at this DC  
input jack  
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.  
HI LEVEL AUDIO IN — Connect the 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 the switches of  
this channel selector to  
choose one of six preset  
frequencies.  
LEVEL ADJUST — Turn to  
adjust the sound quality.  
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 LED lights red) and standby (the  
LED lights green).  
3
 
CONNECTING THE RECEIVER  
RECEIVER  
REAR VIEW  
Antennas — Rotate either or both antennae to adjust  
reception.  
AUDIO OUT — Connect your  
surround speakers to these outputs  
with speaker wire (not supplied).  
AC power cord  
Antenna cradles — Fold antennas to rest in these  
cradles when they are not in use.  
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 get enough power to raise the volume 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.  
4
 
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  
TRANSMITTER  
REAR VIEW  
Ô NOTES 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.  
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.  
Channel #  
Position 1  
Position 2  
Position 3  
1
2
3
4
5
6
ON  
OFF  
ON  
ON  
ON  
ON  
ON  
OFF  
OFF  
ON  
ON  
OFF  
ON  
ON  
OFF  
OFF  
OFF  
ON  
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 A PERSONAL 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.  
5
 
2. Loosen the screw with a screw driver and remove the panel on the bottom of both the  
receiver and the transmitter units.  
IMPORTANT  
!
!
FCC INFORMATION  
BOTTOM VIEW  
This equipment has been tested and found  
to comply with the limits for a Class B digital  
device, pursuant to Part 15 of the FCC  
Rules. These limits are designed to provide  
reasonable protection against harmful  
interference in a residential installation. This  
equipment generates, uses, and can radiate  
radio frequency energy and, if not installed  
and used in accordance with the  
instructions, may cause harmful  
interference to radio communications.  
However, there is no guarantee that  
interference will not occur in a particular  
installation. If this equipment does cause  
harmful interference to radio or television  
reception, which can be determined by  
turning the equipment off and on, the user is  
encouraged to try to correct the interference  
by one or more of the following measures:  
Reorient or relocate the receiving  
antenna.  
3. Use a pen or a pointed object such as a straightened paper clip to move the levers and  
change the code on the transmitter.  
Increase the separation between the  
equipment and receiver.  
4. Use a pen or a pointed object such as a straightened paper clip to move the levers and set  
the same code on the receiver. Put the panel back on and tighten the screw before  
plugging the transmitter and receiver into the AC power source. Plug in and power on the  
transmitter, and then plug in and power on the receiver to make sure the system is working  
properly.  
Connect the equipment into an outlet  
on a circuit different from that to which  
the receiver is connected.  
Consult your local RadioShack store or  
an experienced radio/TV technician for  
help.  
CARE  
If you cannot eliminate the  
interference, the FCC requires that you  
stop using your audio link.  
Keep the transmitter and receiver dry; if either unit gets wet, wipe it dry immediately. Use and  
store the transmitter and receiver only in normal temperature environments. Handle them  
carefully; do not drop them. Keep the transmitter and receiver away from dust and dirt, and wipe  
them with a damp cloth occasionally to keep both looking new.  
Changes or modifications not expressly  
approved by RadioShack may cause  
interference and void the user’s authority to  
operate the equipment.  
This device complies with Part 15 of the  
FCC Rules. Operation is subject to the  
following two conditions: (1) this device may  
not cause harmful interference, and (2) this  
device must accept any interference  
received, including interference that may  
cause undesired operation.  
SERVICE AND REPAIR  
If your transmitter or receiver is not performing as it should, take it to your local RadioShack  
store for assistance. To locate your nearest RadioShack, use the store locator feature on  
the menu options. Modifying or tampering with the transmitter or receiver's internal components  
can cause a malfunction and might invalidate its warranty and void your FCC authorization to  
operate it.  
Product:  
Wireless 5.8 GHz  
Digital Audio Link  
Model:  
15-1974  
Responsible  
Party:  
RadioShack  
100 Throckmorton  
Fort Worth, TX  
76102  
Phone:  
817-415-3200  
6
 
TROUBLESHOOTING  
Symptom  
Suggestion  
Make sure that the AC adapter is plugged into the transmitter and the  
wall outlet.  
The system does not  
power on.  
Make sure that the transmitter power cord is plugged into the wall outlet.  
Make sure both units are powered on and that your audio source is  
turned on and operating.  
Make sure that your speakers are hooked up properly.  
The system is not receiving  
a signal.  
Make sure the green LED on the receiver is illuminated. If it is not lit or it  
is flickering, adjust the antennas  
If you have set a personal ID Code for your system, make sure that both  
units are set to the same code.  
Make sure the audio going to the transmitter is not distorted.  
The audio is distorted.  
If your transmitter is hooked up to a Dolby Digital processor or receiver,  
try adjusting the input power level.  
Check that the antennas on the transmitter and receiver are in upright  
positions with a clear line of sight to each other.  
Move the transmitter and receiver closer together, but make sure they  
are placed not less than three feet apart.  
Cordless phones may cause some interference to the receiver. Position  
the receiver farther away from these devices or change the channel on  
the transmitter.  
The system has noise.  
Metal objects, such as some building structural supports, can cause  
interference. Try positioning antennas to face the ceiling. The signal will  
bounce off the ceiling avoiding direct contact with metal.  
Try switching to another frequency channel.  
Check the volume level on the receiver to make sure it is turned up  
enough to be in balance with the rest of your system.  
No sound from the rear  
surround speakers  
Make sure the transmitter is turned on and the red LED is lit. When the  
transmitter is in standby mode, the receiver is searching for a signal.  
Disconnect the audio link’s transmitter and receiver from AC power for  
30 seconds. Then reconnect.  
Make sure the speaker is connected to the receiver.  
Check the speaker balance on your audio source.  
No sound from one  
speaker  
5GHz 802.11a WLAN  
interference  
Set your 5 GHz WLAN band to 5.15- 5.35 GHz band range. Avoid using  
the 5.8 GHz band.  
SPECIFICATIONS  
TRANSMITTER  
Range .................................................................................................................................................. 30 feet  
Audio Input Level (Low)..............................................................................................................................1 V  
Audio Input Level (High) .............................................................................................................................4 V  
Audio Input Impedance.....................................................................................................................20Kohms  
Operating Current.................................................................................................................................500mA  
Antenna × 1, dimension .......................................................................... 23mm (W) × 81mm (H) × 25mm (D)  
Main unit dimension.............................................................................135mm (W) × 58mm (H) × 117mm (D)  
RECEIVER  
AC Power Supply.....................................................................................................................................120V  
Audio Output Level at 1K Hz ..............................................................................................................25W × 2  
Antenna × 2, dimension .......................................................................... 23mm (W) × 81mm (H) × 25mm (D)  
Main unit dimension.............................................................................250mm (W) × 90mm (H) × 252mm (D)  
Speaker impedance............................................................................................................................. 6 ohms  
7
 
Limited Ninety-Day Warranty  
This product is warranted by RadioShack against manufacturing defects in material and workman-  
ship under normal use for ninety (90) days from the date of purchase from RadioShack company-  
owned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED  
HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES,  
INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,  
ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES  
CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABIL-  
ITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RE-  
SPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE  
OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WAR-  
RANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVE-  
NIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,  
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN AD-  
VISED OF THE POSSIBILITY OF SUCH DAMAGES.  
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limita-  
tion of incidental or consequential damages, so the above limitations or exclusions may not apply to  
you.  
In the event of a product defect during the warranty period, take the product and the RadioShack  
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, un-  
less otherwise provided by law: (a) correct the defect by product repair without charge for parts and  
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase  
price. All replaced parts and products, and products on which a refund is made, become the property  
of RadioShack. New or reconditioned parts and products may be used in the performance of war-  
ranty service. Repaired or replaced parts and products are warranted for the remainder of the origi-  
nal warranty period. You will be charged for repair or replacement of the product made after the  
expiration of the warranty period.  
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,  
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or  
maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs  
other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as  
fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs  
of product removal, installation, set-up service adjustment or reinstallation.  
This warranty gives you specific legal rights, and you may also have other rights which vary from  
state to state.  
RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102  
12/99  
09A03  
15-1974  
Printed in China  
 

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