33-1185.fm Page 1 Wednesday, November 10, 1999 10:29 AM
Rechargeable 900 MHz
Wireless Stereo
Cat. No. 33-1185
OWNER’S MANUAL
Please read before using this equipment.
Headphones
33-1185.fm Page 2 Wednesday, November 10, 1999 10:29 AM
INTRODUCTION
Your RadioShack Rechargeable 900
MHz Wireless Stereo Headphones bring
you the latest in wireless headphone
technology. They use the 900 MHz band
to deliver high-quality stereo sound to almost anywhere in or around your home.
The signals from your audio source can
easily travel thr ou gh wa ll s an d flo or s, s o
you can enjoy your favorite sounds without disturbing others whil e you exercise
or work around your yard or house — up
to 150 feet away from your stereo. Its
features include:
Adjustable Deluxe Headphones
—
headband automatically adjusts for the
most comfortable fit.
Supplied Rechargeable Nickel-Cadmium Batteries, Y Adapter Cable,
1
/4Inch Adapter Plug, AC Adapter,
Charging Cable
— everything you need
to power the headphones and connect
them to your home audio system.
Charging Jack
— lets you charge rechargeable alkaline batteries in the
headphones.
Charging Indicator
— lets you see
when the batteries are charging.
Volume Control
— lets you easily adjust the volume t o a comfortable listening level without adjusting the audio
source.
THE FCC WANTS YOU TO
KNOW
Your Wireless Stereo Headphones
might cause TV or radio interference
even when they are operating properly.
To determine whether your headphones are causing the interference,
turn off the headphones . If the interference goes away, y our headphones are
causing the interference. Try to eliminate the interference by:
• moving your headphones’ transmitter away from the receiver
• connecting your hea dphones’ tr ansmitter to an outlet that is on a different electrical circuit from the
receiver
• contacting your local RadioShack
store for help
If you cannot eliminate t he interference ,
the FCC requires that you stop using
your headphones.
Your headphones are subject to
Note:
interference fro m ot her de vi c es, su ch as
cordless phones, wireless speakers,
and other wireless head phones that operate on the same frequencies. If you
experience interference, try moving the
headphones away from the other device.
©
1999 Tandy Corporation.
RadioShack is a registered trademark used by Tandy Corporation.
All Rights Reserved.
2
33-1185.fm Page 3 Wednesday, November 10, 1999 10:29 AM
CONTENTS
Preparation .......................... ............................................. ....................................... 4
Connecting to an Audio Source .......................................................................... 4
Using AC Power ................................................................................................. 4
Installing Batteries .................................... ...... ....... ...... ....................................... 5
Charging Rechargeable Batteries ................................................................ 6
Operation ............................. ............................................. ....................................... 7
Listening Safely .................................................................................................. 7
Using Your Headphones .................................................................................... 7
Adjusting the Frequency ..................................................................................... 8
Troubleshooting ...................................................................... ................... ............. 9
Care and Maintenance .......................................................................................... 10
Specifications ....................................................................................................... 11
3
33-1185.fm Page 4 Wednesday, November 10, 1999 10:29 AM
PREPARATION
CONNECTING TO AN
AUDIO SOURCE
Caution:
to the audio source's speaker output.
Doing so could dama ge the transmitter
and audio source.
Connect the transmitter to your audio
source's stereo headphone jack or to
separate left and right audio output jacks
(if available). If you connect the transmitter to audio output jacks, you can use
the headphones’ volume control to adjust the volume without turning up the
volume on your audio source.
To connect the transmitter to your aud io
source's stereo headphone jack, plug
the single (
adapter cable into the headphone jack
and connect the other ends into the supplied stereo audio cable (red plug to red
jack and white plug to white jack). Then
connect the red plug to transmitter's
AUDIO IN
plug to the
Do not connect the transmi tter
1
/8-inch) en d of t h e s up p lied Y
R/
jack and connect the white
L/AUDIO IN
jack.
To connect a Y-adapter to a
Note:
1
/4-
inch headphone jack, slip the supplied
1
/4-inch adapter plug over the 1/8-inch
plug and complete the connections.
To connect the transmi tter to your audi o
source's audio output jacks, connect
one end of the supplied stereo audio cable to the transmitter's
R/AUDIO IN
IN
and white plug to
jacks (red plug to
R/AUDIO IN
L/AUDIO IN
and
R/AUDIO
). Then
plug the other ends into the audio
source's audio output jac ks (red plug to
the right channel and white plug to the
left channel).
USING AC POWER
Use the supplied 12-volt, 100-mA AC
adapter to connect the trans mitter to A C
power.
4
33-1185.fm Page 5 Wednesday, November 10, 1999 10:29 AM
Cautions:
You must use a Class 2
power source that su pplies
!
12 volts DC and delivers at
least 100 mA. Its center tip must be
set to positive and its plug must fit
the transmitter's
supplied adapter meets these specifications. Using an adapter that
does not meet these specifications
could damage the transmitte r or the
adapter.
• Always connect the AC adapter to
the transmitter b efore you connect it
to AC power. When you finish, disconnect the adapt er from AC power
before you disconnect it from the
transmitter.
Plug the supplied AC adapter’s barrel
plug into the transmitter’s
then plug the adapter into a standard AC
outlet.
DC 12V
DC 12V
jack. The
jack,
INSTALLING BATTERIES
To power the headphones’ receiver, use
the three supplied AAA nic kel-cadmium
rechargeable batteries. Or, you can use
three AAA alkaline batteries (not supplied, available at your local RadioShack
store).
Cautions:
• Use only fresh batteries of the
required size and recommended
type.
• Do not mix old and new batteries,
different types of rechargeable batteries, or rechargeable batteries of
different capacities.
Follow these steps to install batteries.
1. Remove the battery compartment
cover on the left ear piece by pushing up the tab and pull ing the cover
up in the direction of the arrow.
2. Place the batteries over the ribbon
in the compartment, as indica ted by
the polarity symbol s (+ a nd –) i n the
illustration.
3. Replace the cover.
5
33-1185.fm Page 6 Wednesday, November 10, 1999 10:29 AM
When the headphones stop operating
properly, replace or rec harge the batt eries.
Warnings:
• Do not dispose of the b atteries in a
fire because they can explode.
• Do not open or mutilate a battery.
Swallowing a battery can be fatal.
• Be careful not to short the ba tteries
with conducting materials, such as
rings, bracelets, an d keys. The batteries or the conductor might overheat and burn.
• Do not attempt to charge alkaline
batteries.
Caution:
When you replace t he batteries, use replacem ent batterie s of the required type (AAA), available through
your local RadioShack store.
Important:
This product
can use nickel-cadmium
rechargeable batteries.
At the end of a nickelcadmium battery's useful
1
-
8
0
0
2
2
4
7
-
-
3
8
4
life, it must be recycled or
disposed of properly. Contact your local,
county, or state hazardous was te management authorities for information on
recycling or disposal programs in your
area or call 1-800 -843-7422. Some options that might be available are: municipal curbside collection, drop-off boxes at
retailers such as your local RadioShack
store, recycling collection centers, and
mail-back programs.
Charging Rechargeable
Batteries
Before using your headphones for the
first time, you must charge the headphones’ batteries for at least 24 hours. If
the headphones' range decreases or
you hear no sound from the audio
source, recharge the batteries. It takes
12 to 14 hours to completely recharge
the batteries.
Follow these steps to charge the ba tteries.
1. If necessary, press the headphones'
POWER ON/OFF
the headphones.
You cannot charge the ba tter-
Note:
ies with the headphones turned on.
2. Plug the supplied charging cable
into the headp hones'
on the left earpiece.
3. Plug the other end of the charging
cable into the transmitter base's
CHARGE
jack. The indicator beside
the jack lights.
4. When charging is co mplete, unplug
the charging cable. The indicator
turns off.
button to turn off
CHARGE
jack
6
33-1185.fm Page 7 Wednesday, November 10, 1999 10:29 AM
OPERATION
LISTENING SAFELY
To protect your hearing, follow these
guidelines when you use headphones.
• Set the volume to the lowest setting
before you begin listeni ng. Afte r you
begin listening, adj ust the volu me to
a comfortable level.
• Do not listen at extreme ly high volume levels. Extended high-volume
listening can lead to permanent
hearing loss.
• Once you set the volume, do not
increase it. Over time, your ears
adapt to the volume level, so a volume level that does not cause discomfort might still damage your
hearing.
USING YOUR
HEADPHONES
1. Turn on the audio source.
Note:
does not automatically disable the
audio source’s speakers, turn off the
speakers.
If connecting headphones
flash, rotate
the indicator flashes.
LEVEL
clockwise until
If you connected the transmitter to
an audio source's line output jack
(or a jack that is not controlled by
the audio source's volume control),
VOL
rotate
counterclockwise, then rotate
until the indicator flashes rapidly or
remains lit.
Note:
not make the indicator flash. For
these sources, rotate
way to the left.
3. Press the headphones'
ON/OFF
turn on the headphones. The
POWER indicator
on the left earpiece
lights.
on the headphones fully
Some audio sources might
LEVEL
POWER
button to
LEVEL
all the
2.
If you connected the transmitter to
an audio source's headphone jack
(or a jack that is controlled by the
audio source's volume control), set
LEVEL
on the back of the transmitter
about midway, then rotate the audio
source's volume control until the
indicator at the front of the transmitter flashes. If the indicato r does not
4. Rotate
the STEREO indicator on the right
earpiece lights.
5. Put on the headphones and adjust
VOL
earpiece to the
desired listening
level.
TUNE
until
on the right
7
33-1185.fm Page 8 Wednesday, November 10, 1999 10:29 AM
6. To turn off the headphones, take off
the headphones, then press the
POWER ON/OFF
To preserve battery life , be sure to turn
off the headphones when you are not
using them.
Notes:
• The STEREO indicat or on the right
earpiece lights when the headphones are receiving a clear signal.
As you move out of the t ransmit ter' s
range, the STEREO indicator turns
off. You still can hear the audio
source in mono until you move completely out of range.
button.
ADJUSTING THE
FREQUENCY
If you receive interference from other
devices, you might be able to reduce the
interference by adjusting your headphones’ operating frequency.
Simply rotate
transmitter then rotate
earpiece until the STEREO indicator
lights steadily.
FREQ ADJUST
TUNE
on the right
on the
• If reception is poor even when the
batteries are fully charged and you
are near the transm itter, try moving
the transmitter to a higher location
or moving it away from the audio
source.
8
33-1185.fm Page 9 Wednesday, November 10, 1999 10:29 AM
TROUBLESHOOTING
We do not expect you to have any problems with your headphones, but if you do, the
following suggestions might help.
Problem Solution
No sound Be sure the headphones are turned on.
Charge the headphones' batteries.
Be sure the AC adapter is plugged in and has power.
Be sure all cables are connected securely.
Be sure the audio source is turned on and tuned to an
active channel.
If you have connected the transmitter to jacks that are
controlled by the audio source's volume control, be sure
the source's volume control is turned up.
If the stereo indicator on the right earpiece is not on,
adjust
on the right earpiece until it turns on.
TUNE
Adjust the headphones' volume control.
Change the position of the transmitter.
Distorted audio If the STEREO indicator on the right earpiece does not
light steadily, adjust
on.
Rotate
FREQ ADJUST
on the right earpiece until the STEREO indicator
TUNE
on the earpiece lights steadily.
If you connected the transmitter to an audio source’s
headphone jac ks, reduce the audio source’s volume.
Charge the headphone's batteries.
Change the position of the transmitter.
Adjust the
indicator flashes only occasionally.
control on the transmitter so the level
LEVEL
on the earpiece until it turns
TUNE
on the transmitter, then adjust
If you still have problems, take the headphones to your local RadioShack store for assistance.
9
33-1185.fm Page 10 Wednesday, November 10, 1999 10:29 AM
CARE AND MAINTENANCE
Your
RadioShack Rechargeab le 900 MHz Wireless Stereo H eadphones ar e
ample of superior design and craftsmanship. The following suggestions will help you
care for your headphones so you can enjoy it for years.
Keep the headphones dry. If the y get wet, wipe them dry immediately.
Liquids might contain minerals that can corrode the electronic circuits.
Use and store the headphones only in normal temperature environments. Temperature extremes can shorten the life of electronic devices,
damage batteries, and distort or melt plastic parts.
Keep the headphones away from dust and dirt, which can cause premature wear of parts.
Handle the headphones gen tly and carefully. Dropping them can damage circuit boards an d cases and can cause the headphones to wo rk
improperly.
Use only fresh batteries of the required size and recommended type.
Batteries can leak chemicals that dam age your headph ones’ electro nic
parts.
an ex-
Wipe the headphones with a damp cloth occasionally to keep them looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the headphones.
Modifying or tampering with the headphones’ internal components can cause a malfunction and might invalid ate their warran ty and void your FCC authorization to operate them. If your headphones are not performing as they should, take they to your
local RadioShack store for assistance.
10
33-1185.fm Page 11 Wednesday, November 10, 1999 10:29 AM
SPECIFICATIONS
Transmitter
Carrier Frequency ....................................................................... 912.25–914.75 MHz
Power Source ......................................................................... 12V DC, 100 Milliamps
Modulation Method ............................................................................. FM Modulation
Headphones
Frequency Response ........................................................................... 50 Hz –12 kHz
S/N Ratio ......................................................................................................... >55 dB
Stereo Separation ............................................................................ 20 dB or Greater
Audio Distortion ................................................................................................... <2%
Operating Range ..................................................................... 150 Feet (Open Field)
Specifications are typical; individual units might vary. Specificatio ns are subject to
change and improvement without notice.
11
33-1185.fm Page 12 Wednesday, November 10, 1999 10:29 AM
Limited Ninety-Day Warranty
This product is warrante d by RadioSha ck against manufac turing defect s in material and wor kmanship under normal u se for ninety ( 90) days fro m the date o f purchase fro m RadioShac k companyowned 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 LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT 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 WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,
SPECIAL, INCIDENTAL , OR CONSEQUENTIAL DAMAGES, EVEN IF RadioSh ack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of incidental or consequential damages, so the above limitations or exclusions may not apply to you.
In the event of a pr oduct defect durin g the warranty pe riod, take the pro duct and the RadioShack
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, unless otherwise provid ed by la w : ( a) correct the d efec t by pr odu ct r epair without charge f or par ts a nd
labor; (b) replace the product wi th one of the same or similar design; or (c) refund the purch ase
price. All replace d parts a nd prod ucts, and p roducts o n which a refund is made, become th e property of RadioShack. New or recond itioned parts a nd products may be used in the performance of
warranty service. Re paired or replace d parts and pro ducts are warran ted for the rem ainder of the
original 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, i mproper or abnormal usag e, fa ilu re to fo ll ow i nstructi o ns, imp rop er installation or
maintenance, altera tion, lightning or othe r 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 dam age; (e) tra nsportation , shipping or insurance costs; or (f) costs
of product removal, installation, set-up service adjustment or reinstallation.
This warranty give s you specific l egal rights, an d you may al so have other r ights which var y from
state to state.
RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102
We Service Wh at We Sell
04/99
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
11A99 Printed in Hong Kong
Loading...