Gadmei VC108 User manual

2.4GHz A/V Receiver
2.4GHz PC+A/V Transmitter
VC108VC108
User Manual
WIRELESS PC+A/V
TRANSMITTER RECEIVER

Contents

12 1
IntroductionPrecautions
1. Introduction
1.1 Brief information
VC108 wireless PC+A/V transmitter converts PC signal to video
signal with built-in VGA TO VIDEO function. Adapting 2.4GHz
wireless technic, it can realize long-range TV receiving. With PS/2
mouse, PC can be long-range operated easily. VC108 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
Sameband transmitter and receiver pair using (one to multiple or multiple
to multiple is available).
Play & plug, no software needed.
1.3 Specification
1) TXV2428 Transmitter
4. Precautions
4.1 Normal phenomenon
Interruption appears when moving.
As adopting RF control technic , 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.
Power input: supplied by USB(DC 5V 600mA)
2.4GHz channel: 4 channels (2414, 2432, 2450, 2468MHz)
Video input: 1Vp-p (PAL/NTSC)
Audio input: 1.5Vp-p (L/R)
Video output: 1Vp-p (PAL/NTSC)

211
Introduction
2) TRV2402 Receiver
Power input: DC 5V 300mA
2.4GHz channel: 4 channels (2414, 2432, 2450, 2468MHz)
Mouse type: PS/2 port
Video output: 1Vp-p (PAL/NTSC)
Audio output: 1.5Vp-p (L/R)
1.4 Resolution
640 480
800 600
1024 768
60/75/85 Hz
60/75/85 Hz
60/75 Hz
Resolution Refresh rate
1.5 Application
1.6 Accessories
PC TO AV wireless transmission (PC resources sharing)
AV TO AV wireless transmission STB sharing
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-------------------------------------------1pcs
1.7 Optional accessory
3) Image adjusting menu
Press MENU on the remote control towards IR remote sensor, the
following menu will appear:
UP and DOWN to select the corresponding item, then press LEFT and
RIGHT to reduce or increase corresponding parameter (the parameter
will not be memorized after powering off). When the menu is not laid
out, UP, DOWN, LEFT and RIGHT is to move the image to up, down,
left and right.
<HSIZE>
<VSIZE>
<BRIGHINESS>
<CONTRAST>
<HUE>
<SATURATION>
<FLICK>
<SHARPNESS>
<OSD BACKGROUND>
Adjust image width
Adjust image height
Adjust image brightness
Adjust image contrast
Adjust image hue
Adjust image saturation
Adjust image flicking
Adjust image sharpness
Adjust OSD background color
Operation illustration

10 3
Exterior illustration and installation
IR R L VIDEO PS/2
MMI
DC-IN
2.4G
-ANT
VGA-IN VGA-OUT
PC-AUDIO
USB
MMI
DC-IN
2.4G
-ANT
2. Exterior illustration and installation
1) Transmitter TXV2428 panel and terminal illustration
2.1 Panel and terminal illustration
Channel switch
Power on/off
Source switch
VGA output
VGA input
433MHz antenna
2.4GHz antenna
MMI expansion AVinput
USB port
Audio input(PC)
(Notice: USB connection can provide power supply to TXV2428, no power adaptor needed.)
2) Receiver TRV2402 panel and terminal illustration
Channel switch
Power on/off
Source switch
A/V output
433MHz antenna
2.4GHz antenna
Power input (DC 5V)
Power input (DC 5V)
Mouse port
3.2 Remote control operation
1) Panel illustration
2) Function illustration
PC/AV: Switch between PC and AV
POWER: Enter or exit the standby status
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
NTSC: Switch to NTSC system
Operation illustration

4 9
IR R L VIDEO PS/2
MMI
DC-IN
2.4G
-ANT
VGA-IN VGA-OUT
PC-AUDIO
USB
MMI
DC-IN
2.4G
-ANT
VGA-IN VGA-OUT
PC-AUDIO
USB
MMI
DC-IN
2.4G
-ANT
2.2 Connection
1) Transmitter TXV2428 connection
PC connection:
Notebook connection:
Power adaptor
AV
Monitor
Host
VGA cable
Stereo audio cable USB cable
Power adaptor
AV
USB cable
Stereo audio cable
VGA cable
2) Receiver TRV2402 connection
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 signalbe normally transmitted.
Channel selected status indicator as below:
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.
Notice:
Channel4 selected status
Channel3 selected status
Channel2 selected status
Channel1 selected status
Exterior illustration and installation Operation illustration

8 5
Operation illustration
(STB/DVD...)
2.3 Product placing
Transmitter TXV2428placing:
When using PC, connect the cable correctly following the instruction.
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.
1)
2)
Front view Left view
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.
TXV2428 front IR remote sensor as below:
“”“”
Front IR remote sensor
Notice:
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
(TXV2428) will automatically follow your operation instruction to
switch to signal channel when you have PC/AV switching operation on
the side of the receiver (TRV2402).
Panel indicator status as below:
PC selected status
AVselected status
2) Power on/off
Press “ ” enter or exit standby status.
Power on/off status panel indicator as below:
Power on: previous power-off state
Power off: all indicators off
Exterior illustration and installation
(STB/DVD...)

6 7
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:
Right viewVertical view
IR R L VIDEO PS/2
MMI
DC-IN
2.4G
-ANT
Receiver TRV2402 placing:
Put receiver TRV2402 beside TV set, power on and connect AV cable
according to the corresponding colors (yellow/white/red)
Receiver TRV2402
TV
Video (yellow)
Audio (left/white)
Audio (right/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.
Left viewRear view
Exterior illustration and installation Exterior illustration and installation