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OWNER’S MANUAL —
Please read before using this equipment.
www.radioshack.com
SM
CONNECTIONS
Thank you for purchasing a RadioShack Stereo RF
Modulator. Your modulator is designed to convert the
separate audio and video signals from a video camera,
computer, portable VCR, DVD player or satellite receiver
into VHF TV signals that you can view on a TV set
without Audio/Video (A/V) inputs. This means you can
connect a DVD player to an older TV's antenna/cable
input. The modulator's gold-plated jacks and terminals
assure maximum reliability and minimum signal loss.
The modulator has two sets of inputs (front/back) so you
can connect two devices at the same time.
Stereo RF Modulator
15-2525
Your modulator has two sets of inputs, one in the back and one in the
front. The following connection information applies to either set of inputs.
REQUIRED ACCESSORIES
The following required accessories are available at your local RadioShack store or online at www.radioshack.com.
Note to the CATV System Installer
This reminder is provided to call the
CATV system installer's attention to
article 820-22 of the NEC that provides
guidelines for proper grounding and, in
particular, specifies that the cable ground
shall be connected to the grounding
system of the building, as close to the
point of cable entry as practical.
A/V Shielded Cable (1)
Three Plugs (Stereo)
OR
Two Plugs (Mono)
75-ohm Coaxial Cable
with F-Connectors (2)
75-ohm to 300-ohm
Matching Transformer(1)
S-Video Cable (1)
Use atransformerif your
TV does not have a VHF
75-ohm F-Connector.
You can use an S-Video
cable ifthe video source
has an S-Video jack.
USING A/V JACKS
The A/V jacks on your modulator are color-coded to correspond to the
colors on A/V cable plugs. Be sure to match up the jacks and plugs by
color before completing the connections.
With a Stereo Video Source
1. Plug the plugs on one
end of a stereo A/V
cable into the desired
VIDEO and AUDIO L/R
input jacks on the
modulator.
2. Plug the connections on
the cable's other end into
the Video and Audio L/R
output jacks on the
video source.
3. Connect one end of a
coaxial cable to the
TO TV jack on the back
of the modulator, and the
other end to the Antenna In jack on your TV.
With a Monaural Video Source
1. Plug the plugs on one end of an A/V cable into the VIDEO and L AUDIO
jacks on the modulator.
2. Plug the cable's other ends into the Video and Audio jacks on the video
source.
3. Connect one end of another coaxial cable to the TO TV jack on the back
of the modulator, and the other end to the Antenna In jack on your TV.
USING THE S-VIDEO JACK
1. Plug one end of an S-Video
cable into the S-VIDEO jack
on the modulator and the
other end into the video
source.
2. Plug the incoming antenna’s
coaxial cable into the ANT IN
jack on the back of the
modulator.
3. Connect one end of
anothercoaxial cable to the
TO TV jack on the back of
the modulator, and the other
end to the Antenna In jack on your TV.
4. Plug the modulator's power cord into a
standard AC outlet.
Connection Notes
• If your TV only has 300-ohm VHF screw terminals, attach a 75- ohm to 300-ohm matching transformer to
the screw terminals and connect the coaxial cable to the transformer to complete the connection.
• The modulator selects S-Video as the first priority if both VIDEO and S-VIDEO jacks are connected.
Back View
Front View
VIDEO
R
TO TV ANT IN
CHANNEL
3/4
L
(MONO)
AUDIO
Back View
S-VIDEO
TO TV
ANT IN
CHANNEL
3/4
© 2003RadioShack Corporation. All Rights Reserved.
RadioShackandRadioShack.comaretrademarksused
by RadioShack Corporation.
02/03
Printed in USA
Front/Back Button
Use the push-button switch on the front panel to select the
device connected to the front or the back of the
modulator. The FRONT LED lights green when
the front jacks are selected.
1. Turn on the TV and set it to
channel 3 or 4, whichever is
not used for regular
broadcasts in your area.
2. Set CHANNEL 3 /4 on the
modulator to the same channel
yousettheTV(3or4).
3. Turn on the connected
video source. Make sure
that the front panel switch
is selecting the inputs you
are using.
Ô Note Ô
• To watch a TV broadcast, turn off all other video sources.
• The blue STEREO LED lights when the modulator is
powered.
USING YOUR MODULATOR
USING THE SUPPLIED STAND
After you finish connecting your modulator,
you can lay it horizontally on a flat surface,
or snap the supplied stand onto the AC
power cord end to stand it up vertically.
Stand
(Supplied)
CARE
Keep the modulator dry; if it gets
wet, wipe it dry immediately. Use
and store the modulator only in
normal temperature
environments. Handle the
modulator carefully; do not drop
it. Keep the modulator away from
dust and dirt, and wipe it with a
damp cloth occasionally to keep it
looking new.
If your modulator 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
RadioShack's website
(www.radioshack.com), or call
1-800-The Shack (843-7422) and
follow the menu options.
Modifying or tampering with the
modulator's internal components
can cause a malfunction and
might invalidate its warranty and
void your FCC authorization to
operate it.
SPECIFICATIONS
Video Carrier Output Level ............................................................................................. 6 dB mV
RF Output Channels ........................................................................................................... 3 or 4
RF Output Impedance ................................................................................................... 75 Ohms
Video Input Impedance ................................................................................................. 75 Ohms
TV to ANT Insertion Loss 50–806 MHz ................................................................................. 3dB
Dimensions .............................................................................................. 6.65 x 4.0 x 1.5 inches
Specifications are typical: individual units might vary. Specifications are subject to change and
improvement without notice.
THE FCC WANTS YOU TO KNOW
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.
• Increase the separation between the equipment and
receiver.
• 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.
• If you cannot eliminate the interference, the FCC requires
that you stop using your modulator.
Changes or modifications not expressly approved by
RadioShack may cause interference and void the user’s
authority to operate the equipment.
LimitedNinety-DayWarranty
Thisproductis warrantedby RadioShackagainst manufacturing defects in material and workmanship undernormal use forninety (90) days from the date ofpurchasefrom RadioShack company-owned stores and authorized RadioShack franchiseesand dealers.
EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,ARELIMITED IN DURATION TOTHE DU-
RATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. EXCEPT ASPROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER ORANY OTHER PERSON ORENTITY WITH RESPECT TO ANY
LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USEOR PERFORMANCEOF THEPRODUCTOR ARISING OUT OF ANY BREACHOF THISWARRANTY,INCLUDING, BUTNOTLIMITED TO, ANY DAMAGESRESULTING FROM
INCONVENIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEENADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Somestates donotallowlimitations onhow long animpliedwarrantylasts or the exclusionor limitation ofincidental or consequential damages,so the above limitations orexclusions maynot apply to you.
Intheeventof aproduct defect during thewarrantyperiod,takethe productandtheRadioShacksalesreceiptas proofofpurchasedateto anyRadioShack store. RadioShack will, at its option, unless otherwise provided bylaw:(a)correct the defect by product repair
withoutcharge for parts and labor;(b) replacethe productwith one ofthe same orsimilardesign;or (c)refundthe purchaseprice.All replacedparts and products, and productson which a refundis made, become thepropertyof RadioShack. New orreconditioned
parts and productsmaybeused inthe performance of warrantyservice.Repaired or replacedpartsand products arewarranted for theremainderofthe original warranty period. You willbe charged for repairor replacementof the product made after the expiration
of thewarranty period.
Thiswarranty does not cover: (a)damage or failure caused byor attributableto acts of God, abuse, accident, misuse, improper orabnormalusage,failure to follow instructions,improperinstallation ormaintenance,alteration, lightningorother incidence ofexcess
voltage or current; (b)any repairs other than those provided bya RadioShack AuthorizedService Facility; (c) consumables such asfuses orbatteries;(d) cosmetic damage; (e) transportation,shippingor insurancecosts; or (f) costs of productremoval, installation,
set-up service adjustment or reinstallation.
Thiswarranty gives you specificlegal rights, and you may alsohave otherrightswhich varyfrom stateto state.
RadioShackCustomerRelations,200 TaylorStreet,6th Floor, Fort Worth, TX76102
12/99
The lightningsymbolis intendedto alert youto
the presenceof uninsulateddangerous voltage
withinthisproduct’s enclosurethatmightbeof
sufficientmagnitudeto constitute arisk of
electricshock.Do not open the product’s case.
The exclamation symbol isintended toinform
you that importantoperating and maintenance
instructions areincludedin the literature
accompanying this product.
!
WARNING:To reduce the risk of fire or shock
hazard,do notexpose 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 TOQUALIFIED PERSONNEL.
RISK OFELECTRICSHOCK
DO NOT OPEN
!
Front View