KWorld KW-SA240 is a wireless AV/PC to TV transmitter and receiver that allows you to share resources between your PC and TV, as well as transmit audio and video from your AV devices wirelessly. It features 2.4GHz wireless transmission, VGA to video conversion, easy operation, and a range of up to 20 meters. With the KW-SA240, you can enjoy movies, presentations, and more on your TV without the hassle of cables.
KWorld KW-SA240 is a wireless AV/PC to TV transmitter and receiver that allows you to share resources between your PC and TV, as well as transmit audio and video from your AV devices wirelessly. It features 2.4GHz wireless transmission, VGA to video conversion, easy operation, and a range of up to 20 meters. With the KW-SA240, you can enjoy movies, presentations, and more on your TV without the hassle of cables.
SA240
Wireless AV/PC to TV
USER’S MANUAL
Ver 1.0
Contents
1 Introduction ............................................................................................................................................. 1
1.1 Brief information.......................................................................................................................... 1
1.2 Features........................................................................................................................................ 1
1.3 Specification................................................................................................................................. 1
1.4 Resolution.................................................................................................................................... 1
1.5 Application................................................................................................................................... 2
1.6 Accessories................................................................................................................................... 2
2 Exterior illustration and installation........................................................................................................ 2
2.1 Panel and terminal illustration ..................................................................................................... 2
2.2 Connection................................................................................................................................... 3
2.3 Product placing ............................................................................................................................ 3
2.4 Antenna placing ........................................................................................................................... 4
3 Operation illustration.............................................................................................................................. 5
3.1 Panel operation............................................................................................................................. 5
3.2 Remote control operation............................................................................................................. 6
4 Precautions.............................................................................................................................................. 7
4.1 Normal phenomenon.................................................................................................................... 7
4.2 Use precaution.............................................................................................................................. 7
5 Troubleshooting...................................................................................................................................... 7
Thank you for buying KWorld’s wireless AV/PC to TV.
For better use of the product, please read this User’s Manual carefully before use.
This User’s Manual is for specific product, and all its contents are processed with due care
but are not ensured fully correct.
We assume no responsibility for any loss arising from use of this manual.
The right to interpret all contents of this User’s Guide belongs to the company
The manual is subject to change without notice.
This User’s Manual is not authorized to any party and no reproduction or copy,
in part or whole, of the manual in any way is permitted.
KWorld Website: www.kworld.com.tw
1
1 Introduction
1.1 Brief information
SA240 wireless PC+A/V transmitter converts PC signal to video signal with built-in VGA TO
VIDEO function. Adapting 2.4GHz wireless technical, it can realize long-range TV receiving.
With PS/2 mouse, PC can be long-range operated easily. SA240 is to realize resources sharing
through PC TO TV wireless transmission and movie appreciating from PC on TV without space
limits.
1.2 Features
1) Wireless transmission function
2.4 GHz ISM frequency band with four optional channels.
Support VIDEO TO VIDEO wireless transmission.
433MHz IR remote control re-transmission.
2) VGA TO VIDEO function
Built-in VGA TO VIDEO function, convert VGA signal to standard NTSC or PAL video signal
(resizable image and adjustable brightness, contrast, tint, saturation, sharpness).
Sensitive to VGA input with resolution up to 1024*768@75Hz.
3) Easy-to-operate
Same band transmitter and receiver pair using (one to multiple or multiple to multiple is available).
Play & plug, no software needed.
1.3 Specification
1) SA240-TX Transmitter
Power input: supplied by USB(DC 5V 600mA)
2.4GHz channel: 4 channels (2414, 2432, 2450, 2468MHz)
Video input: (NTSC /PAL)
Audio input: (L/R)
Video output: (NTSC /PAL)
2) SA240-TR Receiver
Power input: DC 5V 300mA
2.4GHz channel: 4 channels (2414, 2432, 2450, 2468MHz)
Mouse type: PS/2 port
Video output: (NTSC /PAL)
Audio output: (L/R)
1.4 Resolution
Resolution Refresh rate
640x480 60/75/85 Hz
800x600 60/75/85 Hz
1024x768 60/75 Hz
2
1.5 Application
PC TO AV wireless transmission (PC resources sharing)
AV TO AV wireless transmission (STB sharing)
1.6 Accessories
User manual----------------------------------------------1pcs
Power adaptor--------------------------------------------1pcs
USB cable------------------------------------------------1pcs
AV cable--------------------------------------------------2pcs
MMI AV cable-------------------------------------------1pcs
Stereo audio cable---------------------------------------1pcs
VGA cable-----------------------------------------------1pcs
Remote control (Optional)-----------------------------1pcs
2 Exterior illustration and installation
2.1 Panel and terminal illustration
1) Transmitter SA240-TX panel and terminal illustration
(Notice: USB connection can provide power supply to SA240-TX, no power adaptor needed.)
2) Receiver SA240-TR panel and terminal illustration
3
2.2 Connection
1) Transmitter SA240-TX connection
2) Receiver SA240-TR connection
2.3 Product placing
Transmitter SA240-TX placing:
1) When using PC, connect the cable correctly following the instruction.
2) When using STB and DVD, put the transmitter onto the A/V device (IR remote sensor 2-3cm forward), right
towards the IR receiver of the A/V device.
4
Notice:
There is infrared remote control or IR on the IR receiving sensor of STB or DVD, please put the IR remote
sensor of transmitter towards it.
SA240-TX front IR remote sensor as below:
Receiver SA240-TR placing:
Put receiver SA240-TR beside TV set, power on and connect AV cable according to the corresponding colors
(yellow/white/red)
2.4 Antenna placing
1) 2.4GHz antenna
2.4G antenna is full-direction antenna with multi-angle rotating function. When interruption appears on the image
(snow spot, WIFI), adjust the 2.4G antenna to be perfect.
2) 433MHz antenna
Pay attention to the place of 433MHz antenna and make sure no obstacle around (especially metallic obstacle
which seriously affects the signal retransmission).
Stretch out the antenna and place as below:
5
3 Operation illustration
3.1 Panel operation
1) Signal CH selection
Press source switch to convert to PC/AV (refer to exterior illustration to get PC/AV input terminal). Only when
transmitter and the receiver are in the same channel, signal can be transmitted normally. Transmitter (SA240-TX)
will automatically follow your operation instruction to switch to signal channel when you have PC/AV switching
operation on the side of the receiver (SA240-TR).
Panel indicator status as below:
2) Power on/off
Press enter or exit standby status.
Power on/off status panel indicator as below:
3) Channel selection
Press channel switch to convert to four 2.4GHz channels.
Notice: Only when the receiver and the transmitter in the same channel, can the A/V signal be normally transmitted.
Channel selected status indicator as below:
Notice:
If wireless LAN like 802.11(WiFi device) is used in your house, please select channel1 or channel4 and adjust 2.4GHz antenna
to avoid its interruption.
6
3.2 Remote control operation
1) Panel illustration
2) Function illustration
X PC/AV: Switch between PC and AV
Y POWER: Enter or exit the standby status
Z CH: Switch the four channels of receiver
[ MENU: Open or close image menu
\ : Select (up)
] : Select (down)
^ : Select (left)
_ : Select (right)
` PAL: Switch to PAL system
a NTSC: Switch to NTSC system
3) Image adjusting menu
Press MENU on the remote control towards IR remote sensor, the following menu will appear:
<HSIZE> Adjust image width
<VSIZE> Adjust image height
<BRIGHINESS> Adjust image brightness
<CONTRAST> Adjust image contrast
<HUE> Adjust image hue
<SATURATION> Adjust image saturation
<FLICK> Adjust image flicking
<SHARPNESS> Adjust image sharpness
<OSD BACKGROUND> Adjust OSD background color
7
4 Precautions
4.1 Normal phenomenon
Interruption appears when moving.
As adopting RF control technical, there will be momentary interruption in the picture when use remote
control.
The distance varies according to the surroundings; the ordinary house can reach about 10-20 meters. But if
the wall is of iron and concrete, it will largely muffle the signal (may not receive signal or shorten receive
distance)
4.2 Use precaution
2.4GHz domestic appliance (such as micro oven 2.4GHz cordless phone, Bluetooth earphone, 802.11b/g
wireless network) may affect the quality of receiving signal even no signal receiving. If affected by micro
oven, the receiver can be put far away from it. As for other interruption, you can reset the signal channel of
the transmitter and receiver.
It is better for transmitting when placing the transmitter to a higher position and the antenna is not sheltered.
So is it for the receiver.
5 Troubleshooting
1) Indicator invalid, no picture
Check whether the transceiver is powered on.
Change the transmission channel of the receiver(refer to operation manual/channel switch)
Adjust the place of the transceiver (refer to exterior illustration and installation)
2) Remote control retransmission invalid
Check whether the transmitter is right connected(refer to exterior illustration and installation)
Adjust the antenna place of the transceiver (refer to antenna placing)
3) Image interrupted
Change the transmission channel of the receiver(refer to channel selection)
Adjust the place of the transceiver(refer to exterior illustration and installation)
4) No picture output or abnormal picture output (using notebook)
Select FORBIDDING of DirectDraw accelerate (start-up operation input “DXDiag” open “DirectX” select
“display” )
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KWorld KW-SA240 is a wireless AV/PC to TV transmitter and receiver that allows you to share resources between your PC and TV, as well as transmit audio and video from your AV devices wirelessly. It features 2.4GHz wireless transmission, VGA to video conversion, easy operation, and a range of up to 20 meters. With the KW-SA240, you can enjoy movies, presentations, and more on your TV without the hassle of cables.
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