Choice Select CHO4007 User manual

2.4GHz Wireless,
Audio/Video/S-Video Sender
With Built-in Remote Control Extender
MODEL: CHO4007
OWNERS MANUAL
0197
Made in China

TABLE OF CONTENTS
●About the CHO4007 ..........................................................................1
●Location of controls and accessories..................................................2
●User Guide ........................................................................................3
●Installation .........................................................................................4
●Trouble Shooting ...............................................................................5
●Referring Pictures...........................................................................6-8
●Caution ..............................................................................................9
●Specifications...................................................................................10
ABOUT THE CHO4007
The CHO4007 is a powerful wireless Audio/Video / S-Video signal sender and receiver
system which can operate with satellite and cable receivers, camcorders, stereo systems,
televisions, laser disc players and VCRs, and provide superior reception at distances
of up to 250 feet (clear line of sight) from the transmitter. This system can support
S-Video.
This system can be used in many different ways:
•Enables you to watch a movie on any television in your home without moving your
VCR or Laser Disc Player, and without the hassle of running wires.
•Enables you to watch your favorite cable or satellite programs on any television in
your home.
•Extends the listening enjoyment of your stereo receiver to any powered speakers in
your home, even if they are not wired into your stereo system.
•Enables you to use your camcorder with a remote television as a closed circuit
monitoring system; ideal for baby's room, or for security.
1

LOCATION OF CONTROLS
The CHO4007 has been carefully engineered and manufactured to give you dependable
operation. Read this manual before operating this unit to become familiar with its
features and obtain the performance that will bring you enjoyment for many years.
Please retain this manual for future reference.
Transmitter and Transmitter and Transmitter Back
Receiver Side Receiver Front
Receiver Back
• Transmitter and Receiver
1. Channel Selector
2. 2.4 GHzAntenna
3. ON/OFFSwitch
4. ACAdaptorPort
• Transmitter
5. InfraredRemote Output
6. Audio L
7. Audio R
8. Video
9. S-Video
2
• Receive
r
10.Audio L
11.Audio R
11. Video
13. S-Video
• Accessory
1. DC 12V 300mA,AC 120V or 230VAdaptor x 1
(ForTransmitter)
2. DC 12V 300mA,AC 120V or230VAdaptor x 1
(For Receiver)
3. Infrared Emitter x 1
4.A
/
V
Cab
l
e
x 1
Remote
Control
Indicators
DC 12 V
AC 120V or 230V
Infrared
Emitte
r

USER GUIDE
1. Only use the power adapter provided with the CHO4007. If you use your own
adaptor, make sure the power output is 12V DC, 300 mA center positive.
2. With direct line-of-sight, the maximum range of A/V signal transmission can reach up
to about 250 feet. This distance would be shortened by obstacles or walls
placed between transmitter and receiver. (The optimum indoor range is under 100 feet)
3. To ensure good infrared remote control operation aim your remote control at the I/R
Sensor Window on the CHO4007 and press the buttons firmly. (With some remote
controls it may be necessary to press and hold each button for about a second). The
working angle of the I/R Sensor Window is +/- 15 degrees. (see Pictures 7, 8)
4. The remote controller should be used within the distance (from remote control
to receiver) of no more than 15 feet (working angle +/- 15 degrees). (see Picture 9)
5. Be sure the ON / OFF switch on both the transmitter and receiver is in the OFF
position before making any connections.
3

INSTALLATION
TRANSMITTER (Tx)
a) Composite Video (RCA)
1) Connect the triple RCA cable (included) to the “AV In” sockets of the Transmitter
(Tx). (see Picture 1)
2) Connect the other ends to the “Audio/Video Out” ports of your VCR, DVD,
Satellite receiver, etc. (see Picture 1)
b) S-Video
1) Connect an S-Video to S-Video cable (not included) to the S-Video input socket
of the Tx and the other end to the S-Video output of VCR, DVD, VCD, Satellite
receiver, etc. (see Picture 1)
2) Connect two of the three ends of the triple RCA cable (included) to the Audio R /
L connected to the Audio R / L In socket of the Tx. Connect the two ends of the
same cables to the Audio R / L Output Ports of VCR, DVD, Satellite receiver, etc.
(see Picture 1)
3) Connect the power adaptor to the power outlet. Turn power ON.
** DC 12V 300mA, AC 110V or 230V Adaptor. (see Picture 1)
4) Stick the IR emitter in front of the sensor receiving window of the device i.e.
VCR, DVD, VCD, Satellite receiver, etc. under effective range and working
angles. (see Picture 2)
5) Choose one of the 4 channels by sliding the selection button (must be set to
same Channel on both transmitter & receiver) (see Picture 4)
RECEIVER (Rx)
a) Composite Video (RCA)
1) Connect the triple RCA cable (included) to the “AV In” sockets of the Receiver
(Rx). (see Picture 3)
2) Connect the other ends to the “Audio/Video Out” ports of your TV.
(see Picture 3)
b) S-Video
1) Connect an S-Video to S-Video cable (not included) to the S-Video input socket
of the Rx and the other end to the S-Video output of the TV. (see Picture 3)
2) Connect two of the three ends of the triple RCA cable (included) to the Audio R /
L connected to the Audio R / L In socket of the Rx. Connect the two ends of
the same cables to the Audio R / L Output Ports of the TV.(see Picture 3)
3) Connect the power adaptor to the power outlet. Turn power ON.
**DC 12V 300mA, AC 110V or 230V Adaptor (see Picture 3)
4) Choose one of the 4 channels by sliding the selection button ( must be set to
same Channel on both transmitter & receiver) (see Picture 4)
5) Make sure this unit is set a little forward to the top of TV in order to have the
best IR performance. (see Picture 7)
4

c) IR Emitter
1) Plug IR Emitter into the “IR OUT” socket on the Receiver. Place the other end
of the IR Emitter on the front of the IR Receiving Sensor of your cable, satellite
receiver, DVD, etc. Before permanently affixing the IR eye, try several
positions to determine which provides the most satisfactory operation. Remove
backing from the adhesive and affix it to the IR sensor of the video source.
TROUBLE SHOOTING
No picture or sound
a) Check the power On/Off switches on the Transmitter, Receiver and TV.
b) Make sure the power plug and signal cable are pushed all the way in.
c) Check if the channel of transmitter & receiver are set to the same channel.
d) Make sure that all cables are connected as per the user guide.
e) If you use an S-Video Connection, your TV set must be set to “S-Video” mode.
Interference & noise, Not Synchronized, Screen unlocked,
Lines across the screen
If any of these conditions exist, try one or more of the following:
a) Adjust receiver antenna direction for optimal performance. (see Pictures 5, 6)
b) Adjust transmitter antenna direction for optimal performance. (see Pictures 5, 6)
c) Select a different channel by sliding the channel button on both
transmitter and receiver. (see Picture 4)
d) You can also vary the transmit / receiver position for optimal performance.
e) If the distance between receiver and transmitter is less than 30 feet do not open
the round antenna, as the signal could be too strong to obtain a sharp picture.
f) If using a microwave oven, turn it off.
g) Remove unnecessary obstructions from the path between transmitter and receiver.
h) Move transmitter and receiver closer. If the problems remain, please contact your
dealer for help.
5

Transmitter
Picture 1
Picture 2
Receiver
Picture 3
6
Back View
Back View
ON/OFF Switch
Power Adaptor
Satellite Receiver
VCR
DVD
VCD
Back View of Video
devices
Make sure you put the IR Emitter in front of the Infrared Receiving Sensor
(Approx. within 20 inches, +/-15 degrees)
IR OUT Cable, Satellite Receiver, DVD/VCR
Front View
Back View
A/V IN
Back View
TV
ON/OFFSwitch
PowerAdaptor
ON/OFFSwitch
PowerAdaptor
S-Video IN
A/V OUT
S-Video OUT
S-VIDEOCABLE
RCACABLE
S-VIDEOCABLE
RCACABLE

Picture 4
Picture 5
Picture 6
7
Transmitter Receiver
Channel selection button
(must be set to same channel
on both transmitter & receiver)
Receiver
Transmitter
Turn the side with dimples face to
face to obtain the best performance
In order to obtain the best
performance of IR receiving
be sure this unit is a little
forward to the TV
IR Receiver
TV
Side View
Receiver

OPERATING REMOTE CONTROL Picture 8
Receiver
Picture 9
8
Remote Control
Distance no more than 15 feet
IR sensor
window
4.2M
4.5M
0.3M
Receiver

CAUTION:
This equipment has been tested and found to comply with CE and FCC regulations.
These regulations are designed to provide reasonable protection against interference
in a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with this manual,
may cause interference to radio communications. However there is no guarantee
that interference will not occur in a particular situation. If this equipment does cause
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 distance between the interfering equipment and the receiver
•Connect the interfering equipment into an outlet on a circuit different from that to
which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
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
IMPORTANT SAFETY PRECAUTIONS
•To prevent fire or shock hazard, do not submerge or expose these products to water
•To avoid electric shock, do not open these units. The CHO4007 contains no user
serviceable parts. Doing so will void the warranty
•Use only the power adaptors provided with the CHO4007
•Do not overload wall outlets or extension cords.
•If you are experiencing difficulty with this product, do not attempt to service it
yourself. Please call your reseller for assistance.
9

SPECIFICATIONS
TRANSMITTER
Output level 0~10dBm microvolts/meter @ 3 meters
Operating frequency 2.4GHz - 2.4835GHz
Modulation FM (Video and Audio)
Video input level 1.0 V p-p
Audio input level 1.0 V p-p
S-Video Input Level Y:1Vpp+-10%, C:288mV +-5%
Video input impedance 75 ohm
Audio input impedance 10K ohm
Power Consumption DC 12V@300mA
Unit dimensions 12 x 10 x 4.3cm
Unit weight 200g
Effective operating range Approx. 250 feet (clear line of sight)
RECEIVER
Output level 1.0V p-p +/- 0.3V p-p (Video)
1.0Vp-p (Audio)
S-Video Output Level Y:1Vpp+-10%, C:288mV +-5%
Power Consumption 12V DC@300mA
Unit dimensions 12 x 10 x 4.3cm
Unit weight 200g
IR TRANSMITTER
Output level 0~10dBm
Operating Frequency 433.9MHz
Modulation Type AM
Effective operating range Approx. 100 feet (clear line of sight)
IR RECEIVER
Operating Frequency 433.9MHz
Sensitivity <-80dBm
10