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  3. RFMX3

Wintal RFMX3 Owner's manual

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MINI UHF TRIPLE INPUT MODULATOR
MODEL: RFMX3
OWNER’S M A N U A L
(PLEASE READ BEFORE USE)
CHAPTER TABLE OF CONTENTS P A G E
1. Important-Safety Precautions……………………………………..2
2. The Modulation System……………………………………………3-5
3. System Contro l………………………………………………………5
4. Installation Of System………………………………………………6-7
5. Trouble Shooting……………………………………………………8
1
1. Important-Safety Precautions
• To avoid electrical shock, do not take apart this device.
• This device should use only the power supply included with it or provided as
an accessory.
• Do not overload wall outlets and extension cords as this can result in the risk
of fire or electrical shock.
• Do not attempt to service this device yourself. Refer servicing to qualified
personnel only.
Note:
This device has been tested and found to comply with the limits for a class B
digital device, pursuant to the FCC Rules, or BZT and CE EMC directive. These
limits are designed to provide reasonable protection against harmful interference in
a residential installation. I f not installed and used in accordance with the instruction,
it may cause harmful interference to RF communications. However, there is no
guarantee that interference will not occur in a particular installation. If this device
does cause harmful interference to RF or television reception, which can be
determined by turning the device off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
• Increase the separation between the device and receptions.
• Connect the device into an outlet on a circuit different from that to which the
receptions are connected.
• Use better quality coaxial cable and avoid sharp bends.
• Consult the dealer or an experienced RF/TV technician for help.
Caution: Changes or modifications not expressly approved by
the Party responsible for compliance could void the user’s
authority to operate the equipment.
2
2. The Modulation System
2-1 Packaging and accessories
1 2
3 4 5
1. One modulator
2. One power adapter (9VDC/300mA)
3. Three RCA plug to RCA plug video cables
4. Three 3.5mm stereo plug to 2RCA plug audio cables
5. One owner’s manual in English
3
2-2 Control Elements, Modulator
Fig1
Fig2
4
1. Power LED indicator
2. Power switch: ON/OFF
3. Channel display
4-6. A/V input LED indicator: A/B/C
7. MOD select key, use to select A/V input (A/B/C) for setup
8.9. Channel up/down key
10. Connect to UHF input of a TV set or cable converter
11. RF output level control
12-17. A/V input: A, B or C
18. Power input socket
3. System Control
3-1 Power Supply
1. Plug in the DC power plug to the power input socket of the device.
2. Turn on the power switch, and then the power LED indicator will light.
3-2 Output select and channel select
1. Press MOD key to select A/V input (A, B or C) and the corresponding A/V
input LED indicator will light. And, the current setup channel number will be
shown on the channel display.
2. Use up and down key to select the desired channel number. (The last
selected channel number will be remained, even when powered off.)
3. Press both up and down key at the same time for about 3 seconds. The
number of sound carrier will be displayed on the channel display. Press up
or down key, you can select the TV norm (PAL-G: 5.5, PAL-I: 6.0, PAL-K :
6.5, NTSC: 4.5), then press MOD key to ensure your selection.
5
4. Installation of System
Fig3
1. Connect video input A to your video device source with RCA plug to RCA
plug video cable and connect audio phone input to your video source with
3.5mm stereo plug to 2RCA plug audio cable. For A/V input B/C connection,
follow the same procedure above.
NOTE: Three pieces of audio cables are included in RFMX3 for audio
connection, three pieces of video cables for video connection.
6
2. Connect RF out to UHF input of TV set or cable set-top converter with RF
cable which is not included.
3. Plug in the provided power supply and plug the plug into the power socket
of the device. Turn on the power switch, and then the power LED indicator
will light.
Then, you can enjoy your TV program.
4. For the best TV vision, it is necessary that the higher or lower channel
number is skipped between A/V input A, B or C. This is to avoid co-channel
interference. For example, Channel 23 is for A/V input A, for A/V input B
channel selection, the channels 22 and 24 must be skipped. For A/V input
C channel selection, it also necessary to follow above procedure to avoid
co-channel interference between A/V input A, B and C.
7
5. Trouble shooting
1. No image or sound
a) Make sure the power switch is in the “ON” position.
b) Check the right connection of all the connectors and plugs.
c) Make sure the modulation and TV are on the same channel.
2. Interruptions in image and sound
a) Make sure the modulation and TV are using the free channel.
b) Shorten the signal transmission medium between the modulation camera
and TV set.
If possible, keep the coaxial cable away from the other cables, especially
mains wiring.
If your experience is difficulty to install, set or use the device, consult the
dealer or an experienced RF/TV technician for help.
8
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