RCA DH91RF User Manual
RF Modulator
ON
with S-Video Input
DH91RF User's Manual
Consulte el reverso para instrucciones en español
This RF Modulator converts the separate audio and video signals (from a video camera,
computer, portable VCR, or satellite receiver, for example) into an RF TV signal that you can
view through the RF jack on your TV set.
The FCC Wants You to Know
This device complies with Part 15 of 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.
Your modulator might cause TV or radio interference even when is
operating properly. To determine whether your modulator is causing the
interference, turn it off. If the interference goes away, your modulator
is causing it.
Try to eliminate the interference by:
• moving your RF Modulator away from the receiver
• connecting your RF Modulator to an outlet that is on a different
electrical circuit from the receiver
• contacting your local store for help
If you cannot eliminate the interference, the FCC requires that you stop
using your RF Modulator.
Changes or modifications not expressly approved by the party responsible
for compliance could void the user's FCC authorization to operate this
equipment.
Required Parts
The following items (not supplied) are required to connect your RF
Modulator to a video input source and your TV.:
• one audio/video cable
• two 75-ohm coaxial cables with F-type connectors
You may also need a 75-ohm-to-300-ohm matching transformer (if your
TV does not have a VHF 75-ohm F-connector).
Note: The audio signal will be modulated to mono, whether the video
source is stereo or mono.
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.
Installation
You can seat the RF modulator either vertically or horizontally.
To seat the RF Modulator vertically :
Slide the seat plate (included)
onto the bottom of the RF
Modulator until the locking
tab of the seat plate clicks in
to secure the plate to the RF
Modulator.
To seat the RF Modulator horizontally :
Attach the four self-adhesive rubber pads (included) to
the side face of the RF Modulator.
Then, turn the RF Modulator onto the side with the
rubber pads.
Note: To remove the seat plate
once you’ve seated the RF
Modulator, pull up the locking
tab on the bottom of the plate
and push the seat plate off of
the RF Modulator.
Video Source
A/V Cable
RF Modulator
Video Source
A/V Cable
RF Modulator
Video
RF Modulator
Source
Connections
Follow these steps to connect your RF Modulator.
1. Connecting to your video source
How you connect the RF Modulator to your video source (DVD player, video game system, etc.) depends on the outputs
your video source has. Look at the back panel of your video source to see which of the following best matches the
connections it offers. Then, follow the directions for that connection.
S-Video and Stereo Audio Connection
1. Plug the connectors on
one end of a stereo
audio cable into the
audio input jacks on
the RF Modulator.
2. Plug the connectors
on the cable’s other
end into the audio output jacks on the video
source, using the color
coding on the connectors as a guide.
3. Plug the connector on
one end of an S-Video
cable into the S-Video
input jack on the RF
Modulator.
4. Plug the connector on the cable’s other end into the
S-Video output jack on the video source.
Video and Stereo Audio Connection
1. Plug the connectors on
one end of a stereo A/V
cable into the video
and audio input jacks
on the RF Modulator.
2. Plug the connectors
on the cable’s other
end into to video and
audio output jacks on
the video source, using
the color coding on the
connectors as a guide.
Video and Mono Audio Connection
1. Plug the connectors on
one end of an A/V cable
into the video and audio
input jacks on the RF
Modulator (using either
the AUDIO R or L jack).
2. Plug the cable’s other
ends into the video and
audio jacks on the video
source.
2. Connecting to your TV
A/V Cable
ANTENNA /CABLE
TV
VHF/UHF
VHF/UHF
75-Ohm Coaxial Cables
75-Ohm
RF Modulator
A
/V Cable
Coaxial Cables
VHF/UHF
TV
75-Ohm
RF Modulator
A/V Cable
Coaxial Cables
TV
VHF
UHF
75-Ohm to 300-Ohm
Matching Transformer
RF Modulator
CHANNEL 3/4
How you connect your RF Modulator to your TV depends on what RF input your TV offers. Look at the back panel
of your TV to see which of the following best matches the connections it offers. Then, follow the directions for that
connection.
Something else connected to the TV’s RF jack
(like an antenna, VCR, or cable signal)
1. Disconnect the
cable connected to
the TV’s RF input.
2. Reconnect this cable
to the RF Modulator’s
ANT IN jack.
3. Connect a coaxial
cable between the
TO TV VHF/UHF jack
on the RF Modulator
and the RF input on
your TV.
Nothing connected to the TV’s RF jack
Connect a 75-ohm
coaxial cable between
to the TO TV jack on the
RF modulator and the
RF jack on your TV.
Your TV has only 300-ohm VHF screw terminals
Use a 75-ohm-to-300ohm matching transformer
to make the connection.
3. Plugging in the RF Modulator
Plug the RF Modulator’s power cord into a standard AC
outlet.
Note: This power unit is intended to be correctly oriented
in a vertical or floor mount position.
4. Setting the CHANNEL 3/4 switch
1. Turn on your TV and
set it to either Channel
3 or 4, whichever is
not used for regular
broadcasts in your
area.
2. Set the RF Modulator’s
CHANNEL 3/4 switch
to the same channel
you set the TV (3 or
4).
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