User Manual
VX-2044 VX-2084
VX-2088
VX Series Matrix Switching Systems
VX Matrix Switching System—User Manual
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Before You Use the System
1、Read manual——Carefully read the manual before you use the system.
2、Installation environment——The system should be installed indoor only. Install either on a
sturdy rack or desk in a well-ventilated place.
3、Lightning——Unplug the power cord during lightning or after a prolonged period of non-use
to avoid damage to the equipment.
4、Maintenance——Only qualified technical engineers or specified distributors are permitted to
repair or replace components and parts of the equipment upon failure.
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Table of Contents
1.0 Matrix System Overview ..........................................................................................................4
1.0.1 VX Matrix System ......................................................................................................4
1.0.2 VX Matrix System Packing............................................................................................4
2.0 VX Matrix Host Installation......................................................................................................5
3.0 VX Matrix System Models........................................................................................................6
4.0 Matrix System Front/Rear Panels .............................................................................................6
4.0.1 VX-2044 Front/Rear Panels...........................................................................................6
4.0.2 VX-2084 Front/Rear Panels...........................................................................................7
4.0.3 VX-2088 Front/Rear Panels...........................................................................................7
5.0 VX Matrix and Peripherals Connection....................................................................................8
5.0.1 Input/Output Jacks..........................................................................................................8
5.0.1.1 Video Connecting Cable......................................................................................8
5.0.2 VX Matrix and Control Computer Connection............................................................10
5.0.3 Remote Control Methods and Settings.........................................................................10
5.0.3.1 RS-232 Communication Port, Connection Methods.........................................10
5.0.3.2 RS-485 Communication Port............................................................................12
5.0.3.3 On/Off Switches Settings..................................................................................13
5.0.3.4 VX Matrix System and Control System Connection........................................15
6.0 Matrix Control Panel Operation..............................................................................................17
6.0.1 Input/Output Switching Key Operation Mode.............................................................17
6.0.2 Front Panel Key Functions...........................................................................................18
6.0.3 Operation Examples.....................................................................................................19
7.0 Matrix Application Software...................................................................................................21
7.0.1 Software Introduction...................................................................................................21
7.0.1.1 Software Description.........................................................................................21
7.0.1.2 Software Activation...........................................................................................21
7.0.2 Software Features.........................................................................................................21
7.0.2.1 Main Operation Interface Functions .................................................................22
7.0.2.2 Disconnect Function Keys ................................................................................23
7.0.2.3 Select all output, DeSelect all output Switching Functions..............................24
7.0.2.4 Disconnect all Command..................................................................................24
7.0.2.5 Memory Function Usage...................................................................................24
7.0.2.6 Scan Function Usage.........................................................................................25
7.0.2.7 Options Function Usage....................................................................................25
7.0.2.8 Exit Function Usage..........................................................................................26
7.0.2.9 Other Usages.....................................................................................................26
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8.0 Communication Protocol and Control Command Code .........................................................26
9.0 VX Matrix System Technical Parameters ...............................................................................27
10.0 Common Problems and Solutions.........................................................................................28
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1.0 Matrix System Overview
1.0.1 VX Matrix System
The VX Matrix switcher is a high performance switching equipment for video frequency. It
is used for input/output cross switching of multi-video frequency signals. It prov ides separate
video jacks for separate transmission of each video frequency component signal, thereby
minimizing signal attenuation and ensuring high definition graphics output.
The VX Matrix is used mainly in TV broadcasting projects, multi-media conference halls,
large display projects, TV teaching and command control centers. It boasts features of power
interruption protection during power surge and LCD display. Its RS-232 and RS-485
communication ports enable convenient communication with remote control equipment. This
manual describes using of the VX-2088 model. Refer to VX-2088 User Manual for using of
other models of matrix systems.
Figure 1-1 VX-2088 Matrix
1.0.2 VX Matrix System Packing
VX Matrix Host
RS-232 Communication Connecting Cable
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Power Cord
VX Matrix Testing and Application Software CD
User Manual
2.0 VX Matrix Host Installation
The VX Series Matrix Host has a black metallic housing. It can be placed on a sturdy desk
or installed on a 19-in rack. See Figure 2-1 below:
Figure 2-1 Installing the VX Matrix Host on a Standard Rack
Green T erm inal（M） Quantity
VX-2044 2 Pcs
VX-2084 2 Pcs
VX-2088 2 Pcs
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3.0 VX Matrix System Models
The VX Series Matrix has following models to meet different requirements of different
users:
Technical
Parameters
Model
Video Input
Port
Video Output
Port
RS-485
Connector
RS-232
Connector
VX-2044 4 4 √ √
VX-2084 8 4 √ √
VX-2088 8 8 √ √
4.0 Matrix System Front/Rear Panels
4.0.1 VX-2044 Front/Rear Panels
Figure 4-1 VX-2044 Front Panel
Figure 4-2 VX-2044 Rear Panel
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4.0.2 VX-2084 Front/Rear Panels
Figure 4-3 VX-2084 Front Panel
Figure 4-4 VX-2084 Rear Panel
4.0.3 VX-2088 Front/Rear Panels
Figure 4-5 VX-2088 Front Panel
Figure 4-6 VX-2088 Rear Panel
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5.0 VX Matrix and Peripherals Connection
Figure 5-1 VX Matrix System Conection
5.0.1 Input/Output Jacks
Referring to the different models, the video signal input/output jacks are formed by the 4th
row and 8th row VGA female terminals. The VX-2088 video signal input/output terminal
channels are numbered from lower to upper and from left to right as NO.1 to NO.8 channels (in
two rows). The video port is the video signal terminal. Refer to the drawing on the housing for
port terminals of different models.
Different models of the VX matrix system provides a different number of input/output jacks
for users to connect to different video equipment including CD/DVD players, graphics
workstations, and number displays. The output terminals can be connected to projectors, video
recorders, and displays and so on.
5.0.1.1 Video Connecting Cable
Data processed by the display card will ultimately be output to the display, and the display
output connector bridges together the computer and the display. It is responsible to output
corresponding graphics signals to the display. Due to design and manufacturing, the CRT
monitor can only receive analog signals, thereby the display card must also be able to input
analog signals. The VGA (Video Graphics Array) connector, also called D-Sub conector, is the
connector of graphics card for output of analog signals. Although the LCD display can directly
receive digital signals, many low-end products still use VGA connectors for connection to the
VGA card. The VGA connector is a D-sub connector with 15 pins in 3 rows (each row has 5
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pins). The VGA connectors are extensively used in display cards and most display cards have
such connectors.
Presently, most computers connect with external displays via analog VGA connectors. The
computer internally generates digital graphics data to be converted by the graphics card
digital/analog converter into the R, G, and B process color signals, and coutour and gamut
synchronous signals which are transmitted to the display via the cable. Regarding analog display
equipment such as the analog CRT display, the signals are being sent directly to the
corresponding processor circuit and drive the controlling Cathode Ray Tube into graphics display.
Digital displays such as LCD and DLP are usually equipped with A/D (Analog/Digital)
converters to convert analog signals into digital signals. Unavoidably, some losses to graphics
happen after two times of conversion from analog to digital and vice versa. It’s understandable to
use VGA connectors in CRT monitors, but to use it in LCD displays the quality of graphics
display is likely to degrade in the process of conversion.
Different models of the VX matrix system provides a different number of input/output jacks
for users to connect to different video equipment including CD/DVD players, desktop PCs,
graphics workstations, and number displays. The output terminals can be connected to projectors,
video recorders, and computer monitors and so on.
The VX Matrix supports various AV signal sources.
The VX Matrix Connector Connecting Methods as shown in Figure 5-2:
Pin No. Name Description
1 RED Red video signal
2 GREEN Green video signal
3 BLUE Blue video signal
4 n.c. No connect
5 GND Ground
6 RED_RTN Red video signal return
7 GREEN_RTN Green video signal return
8 BLUE_RTN Blue video signal return
9 n.c. No connect
10 GND Ground
11 n.c. No connect
12 SDA I2C data
13 HSYNC Horizontal synchronization signal
14 VSYNC Vertical synchronization signal
15 SCL I2C clock
Figure 5-2 VGA Connection
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5.0.2 VX Matrix and Control Computer Connection
Use the RS-232 connecting cable to connect the computer serial port (COM1 or COM2) to
the RS-232 communication port of the VX matrix host. The computer can then be used to control
the VX matrix after installation of application software.
Figure 5-4 VX Matrix and Computer Connection
5.0.3 Remote Control Methods and Settings
The VX matrix provides standard RS-232 and RS-485 serial communication ports. Aside
from using the front panel keys for switching operation, you are also permitted to use the RS-232
and RS-485 serial communication ports for remote operation. It also supports RS-485 serial
control.
5.0.3.1 RS-232 Communication Port, Connection Methods
The RS-232 port is a 9-pin female connector. The Leg functions are shown in the table
below:
Pin No. Leg Description
1 N/u Null
2 Tx To send
3 Rx To receive
4 N/u Null
5 Gnd Ground
6 N/u Null
7 N/u Null
8 N/u Null
9 N/u Null
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Figure 5-5
Figure 5-5（a）
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Figure 5-6
Note: The Matrix RS-232 port is defined as DCE.
5.0.3.2 RS-485 Communication Port
You can use the RS-485 port to control more than one VX product.
The RS-485 Port is shown in Figure 5-7 below:
Figure 5-7
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5.0.3.3 On/Off Switches Settings
Figure 5-8
A. DIP SW-8:RS-232/RS-485 switches ON/OFF
ON:RS-232 Enables Single System or RS-485 Serial Master
OFF:RS-485 Enables RS-485 Serial Slave
B. DIP sw-6/7:RS-485 Terminator ON/OFF
ON:Terminator ON
OFF:Terminator OFF
C. DIP sw 1 to 5 Setting（address setting）
The ID address determines the position of a VX Matrix system. When multiple VX products
are connected to one PC or when the Matrix products are serially connected, the ID address
decides which VX product is to be controlled. Use the on/off switches 1, 2, 3, 4, 5 on the rear
panel to set the ID address as shown in Table 5-2 below:
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ON/OFF Switches Settings
ID Address
（Decimal）
Software ID
Address
（Hexadecimal）
ON/OFF
（Binary）
SW1 SW2 SW3 SW4 SW5
0 00 00000 OFF OFF OFF OFF OFF
1 01 00001 OFF OFF OFF OFF ON
2 02 00010 OFF OFF OFF ON OFF
3 03 00011 OFF OFF OFF ON ON
4 04 00100 OFF OFF ON OFF OFF
5 05 00101 OFF OFF ON OFF ON
6 06 00110 OFF OFF ON ON OFF
7 07 00111 OFF OFF ON ON ON
8 08 01000 OFF ON OFF OFF OFF
9 09 01001 OFF ON OFF OFF ON
10 0A 01010 OFF ON OFF ON OFF
11 0B 01011 OFF ON OFF ON ON
12 0C 01100 OFF ON ON OFF OFF
13 0D 01101 OFF ON ON OFF ON
14 0E 01110 OFF ON ON ON OFF
15 0F 01111 OFF ON ON ON ON
16 10 10000 ON OFF OFF OFF OFF
17 11 10001 ON OFF OFF OFF ON
18 12 10010 ON OFF OFF ON OFF
19 13 10011 ON OFF OFF ON ON
20 14 10100 ON OFF ON OFF OFF
21 15 10101 ON OFF ON OFF ON
22 16 10110 ON OFF ON ON OFF
23 17 10111 ON OFF ON ON ON
24 18 11000 ON ON OFF OFF OFF
25 19 11001 ON ON OFF OFF ON
26 1A 11010 ON ON OFF ON OFF
27 1B 11011 ON ON OFF ON ON
28 1C 11100 ON ON ON OFF OFF
29 1D 11101 ON ON ON OFF ON
30 1E 11110 ON ON ON ON OFF
31 1F 11111 ON ON ON ON ON
Table 5-2 ID Address Settings
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5.0.3.4 VX Matrix System and Control System Connection
A. If PC provides RS-232，connection is as in Figure 5-9 below:
Figure 5-9
NOTE: 1. For RS-232 connection refer to previous Figure for operation；
2. RS-232 and RS-485 baud rates: 9600bps, no odd or even calibration address, 8bit data
transmission address, 1bit stop address（96,N,8,1）；
3. Serial connection between Matrix RS-485 as follows:
TX（+） TX（+）
TX（-） TX（-）
RX（+） RX（+）
RX（-） RX（-）
4. Each DIP sw1-5 address must not set to same ID address.
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B. If PC provides RS-485, connection is as in Figure 5-10 below:
Figure 5-10
NOTE: 1. RS-485 baud rate: 9600bps, no odd or even calibration address，8bit data transmission
address，1bit stop address（96，N，8，1）；
2. Connect your PC RS-485 port to the Matrix RS-485 port as follows:
TX（+） TX（+）
TX（-） TX（-）
RX（+） RX（+）
RX（-） RX（-）
3. Serial connection between Matrix RS-485 ports as shown below:
TX（+） TX（+）
TX（-） TX（-）
RX（+） RX（+）
RX（-） RX（-）
4. Each DIP sw1-5 address must not set to same ID number.
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6.0 Matrix Control Panel Operation
6.0.1 Input/Output Switching Key Operation Mode
You can use the front panel keys of the VX Matrix system for fast video switching. (For
details in key pressing, refer to the “Front Panel Key Pressing Instructions”.)
Operation methods as follows:
“Output Channels＂+“Input Channels＂
Description: ‘
“Output Channels＂
The “OUT Row 1-8” keys on the front panel represent output channels 1 to 8 for connection to
peripheral display.
“Input Channels＂
The “IN Row 1-8” keys on the front panel represent input channels 1 to 8 for connection to the
currently connected channels of the signal source to be switched.
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6.0.2 Front Panel Key Functions
Part Function Key Functions
1
LCD display shows current VX matrix status and
operation hints.
2
Output channel selection keys used for setting video
output channels or for selection of Status Retrieve or
Stored Number.
3
Input channel selection keys used for setting video input
channels or for selection of Status Retrieve or Stored
Number.
4 ALL
Implement all output selection keys via certain input
route.
---Example: First press the “ALL” key, then select the
input channel to output to all output channels; first press
the “ALL”key, then press the “OFF” key to close all the
presently displayed swtitching status.
5 OFF
Close output channel key.
---First press to close the output channels, then press the
“OFF” key to close the specified output channel.
6 STO
The “Store Key” saves all current input/output
corresponding relations.
---Example: Press the “STO”key, then press the output
channel key which you want to save all currently
displayed input/output corresponding relations.
7 RCL
The “Retrieve Key” retrieves the saved input/output
corresponding relations.
---Example: First press the “RCL” key, then press the
previously saved output channel key to retrieve the saved
input/output status and implement this status switching.
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6.0.3 Operation Examples
Examle 1: Synchronously switch the NO. 1 video signals to the NO. 3 and 4 output
channels.
Key LCD Display Operation
1. Press the NO. 3 key of the
output channel for 2 seconds,
then enter the input channel
when the red 0 on LCD begins
to flicker.
2.Press the NO.1 key of the
Input channel for 2 seconds for
selection of NO.1 channel for
input into NO.3 channel
for output. The LCD shows 1
at channel NO.3 of IN row.
3. Press the NO.4 key of the
output channel for 2 seconds
and then enter the input
channel when the red 0 on
LCD flickers.
4.Press the NO.1 key of the
input channel for 2 seconds for
selection of NO.1 channel for
input and NO.3 and NO.4
channels for output. NO.3 and
NO.4 channels on LCD show
“1”at IN row.
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Example 2: Operation for synchronously switching video signals from NO.4 channel to NO.1, 3,
5 and 6 output channels.
Key LCD Display
Operation
1. Press the NO.1 key of output
channel for 2 seconds. Enter the
input channels when the red 0 on
LCD flickers.
2. Press the NO.4 key of the
input channel for 2 seconds to
select operation of input from
NO.4 channel and output from
NO.1 channel. Enter the output
channel when VIDEO shows 4 at
NO.1 channel on LCD.
3.Press the NO.3 key of the
output channel for 2 seconds and
enter the input channel when the
red 0 on LCD flickers.
4.Press the NO.4 key of the input
channel for 2 seconds to select
operation of input from NO.4
channel and output from NO.1
and NO.3 channels. Enter the
output channel when VIDEO
shows “4” at NO.1 and NO.3
channels on LCD.
5.Press the NO.5 key of the
output channel for 2 seconds and
enter the input channel when the
red 0 on LCD flickers.
6.Press the NO.4 key of the input
channel for 2 seconds to select
operation of input from NO.4
channel and output from NO.1, 3
and 5 channels. Enter the output
channel when “4”shows at NO.1,
3 and 5 channels on LCD.
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Key LCD Display
Operation
7. Press the NO.6 key of the
output channel for 2 seconds and
enter the input channel when the
red 0 on LCD flickers.
8. Press the NO.4 key of the
input channel for 2 seconds to
select the operation of input from
NO.4 channel and output from
NO.1, 3, 5 and 6 channels. IN
row shows “4” at NO.1,3, 5 and
6 channels on LCD.
7.0 Matrix Application Software
7.0.1 Software Introduction
The 《AV Matrix》 Matrix control software applies to different input/output matrixes.
7.0.1.1 Software Description
The《AV Matrix》 matrix testing software is an application tool developed for matrix testing
and application. The software operation environment is as follows:
Window98/2000/NT/XP operatng systems
32M interal memory or above
10M hard disk space or above
CD-ROM
At least one serial communicatin port
7.0.1.2 Software Activation
First, you must turn off power both to the VX matrix and to the computer. Then, connect the
matrix RS-232 port to the PC RS-232 port using the bundled communication cable. (Refer to the
previous section “VX Matrix and Control Computer Connection.”;
Turn on power to the VX matrix and the computer:
Activate the AV Matrix.exe on the bundled CD-ROM in the control computer to enter the
control software interface.
7.0.2 Software Features
The software controls signal connection between the corresponding input port and output port
as required. The main operation window is shown in Figure 7-1 below:
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Figure 7-1 《AV Matrix》 Control Software Usage Interface
Scroll on the left lower corner to view contents as shown below.
7.0.2.1 Main Operation Interface Functions
Refer to the window menu above, the interface blue area shows crossing matrix of output
ports 01-08 and input ports 01-08. On the lower right hand corner, you can select either
“Video” for signal input switching or “Disconnect”to close all output ports. Click to check the
white box to the left of “Video” for video signal transimission.
Examples for Selecting Matrix Switching Functions:
Example 1: Now there is a VX-2088 matrix having all the input/output ports properly
connected to the equipment. There are two ways of operation if you want to set channel 1 video
to channels 2, 3 and 5 for output and channel 3 video to channel 6 for output:
First way: Directly click on the corresponding icons on the matrix
to turn them into
to complete the switching operation.
Second way:
Step 1: First select the “Output”number keys 02, 03 and 05 to the right, and select the “Input”
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number key 01 to the bottom. Afterwards, press consecutively the previously selected “Output”
number keys 02, 03 and 05 (or you can press the “Deselect all output” key). This way, you have
selected “Input” 01 and “Output” 02, 03 and 05 switching.
Step 2: First select the “Output” number key 06 to the right, and select the “Input” number
key 03 to the bottom. Afterwards, press the previously selected “Output” number key 06 (or you
can press the “Deselect all output” key). This way, you have selected Input 03 and Output 06
switching.
Upon completion of the above 2 steps, you have actually completed the operation of having
Video channel 1 switched to Output channels 2, 3 and 5 while at the same time successfully
switched from Video channel 3 to Output channel 6.
7.0.2.2 Disconnect Function Keys
Close all the unused output ports.
A specific example of operation is described below:
The present input and output relations are shown in Figure 7-2 below:
Figure 7-2
Now, you have to close the output ports 03、05、and 06.
Step 1: First press down the output number keys 03, 05 and 06 to the right;
Step 2: Press the “Disconnect” key;
Step 3: Press the previously-pressed output number keys 03, 05 and 06 (or press the
“Deselect all output” key) to complete the operation.
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The final results will be as shown in Figure 7-3 below:
Figure 7-3
7.0.2.3 Select all output, DeSelect all output Switching Functions
（1）Select all output Function Description: You can use this function to select one port for input
and all output ports for output.
A specific example of operation is described below:
Example: Now, you have a VX-2088 matrix with all input and output ports properly
connected to the equipment. The needed input/output ports should be set to video channel 1
while switching all output ports to output.
Press the Select all output key and select the input number key 01. Click on the matrix icons
along the 01 row to turn them into to complete the command operation.
（2）DeSelect all output Function Description: It is used to close the Select all output function.
7.0.2.4 Disconnect all Command
Function Description: To close all the switching methods.
Press the “Disconnect all” key to close connection to all input and output ports.
7.0.2.5 Memory Function Usage
Function Description: To store and retrieve.
Store Function Description: The Store Function saves all the present input/output
switching relations to any Locations from #1 to #8 you desired.
A specific example of the Store Function is described below:
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Stores all the present input/output switching relations to Location #1. First, select Location
#1，as shown in the figure below:
， then click the save key to save all the
present input/output switching relations to Location #1.
Retrieve Function Description: To retrieve the saved input/output switching relations.
A specific example of the Retrieve Function is described below:
To retrieve the input/output corresponding relations saved in Location #1. First, select Location
#1 as shown in the figure below:
, then click the Load key to retrieve all the
input/output corresponding relations stored in Location #1.
7.0.2.6 Scan Function Usage
Use the mouse to click the Scan key to refresh the AV Matrix operating interface.
7.0.2.7 Options Function Usage
Activation Function:
In the main menu, select Options to prop up the Options window as shown in Figure 7-4（a）
Figure 7-4（a） Figure 7-4（b）
Function Description:
Linking Methods: In “ ” select either COM1 port or COM2 port as shown in
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Figure 7-4（b）; in “ ” select 9600 for signal transmission as shown in Figure 7-4（a）
7.0.2.8 Exit Function Usage
Function Description: To exit the operating software.
7.0.2.9 Other Usages
Displays the presently saved switching status as shown in Figure 7-5 below:
Figure 7-5
When Video corresponding to Output is open, it shows the Output ports correspond to the
Video Input ports; when they are close the word None will be shown in red in the above table.
8.0 Communication Protocol and Control Command Code
Communication Protocol: Baud rate 9600bps, no odd or even calibration bit address, 8bit
transmission address, 1bit stop address.
Refer to the “Command list.pdf” on the CD-ROM for the command system.
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9.0 VX Matrix System Technical Parameters
Model
Technical Specs
VX-2088 VX-2084 VX-2044
Video
Enhancement 0dB
Bandwidth 200MHz (-3dB),Full Load
Max. Transmission Delay 20ns(±1nS)
Switching Speed 50nS (Longest Time)
Signal T ype VGA,RGBHV,RGBS,RGsB,RsGsBs
Video Input
Connector
8 VGA Female
Connectors
8 VGA Female
Connectors
4 VGA Female
Connectors
Signal Strength 0.7Vp-p RGB(Computer Signal)
Min./Max. Voltage
Analog Signal 0.3V~1.5Vp-p
Impedance 75Ω
Video Output
Connector
8 VGA Female
Connectors
4 VGA Female
Connectors
4 VGA Female
Connectors
Min./Max. Voltage
Analog Signal 0.3V~1.5Vp-p
Impedance 75Ω
Synchronous Signal
Input/Output Signal Type VGA,RGBHV,RGBS,RGsB,RsGsBs
Input Voltage 0.5V-5.0Vp-p
Output Voltage 5Vp-p
Input Impedance 510Ω
Output Impedance 75Ω
Polarity Positive or Negative（Identical with Input）
Control T ypes
Serial Control Connectors RS-232,9-Pin Female D Type Connector
Baud Rate and Protocol
9600bps, no odd or even calibration address,8bit transmission
Address,1bit Stop Address
Serial Control Structure TX,RX,GND
Control Procedures 《AV Matrix》
Specifications
Power 100VAC~240VAC,50/60Hz,International Auto-Switch
Temperature
Storage,Operating Temp.: -40℃~+70℃
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Model
Technical Specs
VX-2088 VX-2084 VX-2044
Humidity Storage,Operating Humidity:10%~90%
Housing Measurements 485(L)X272(W)X93mm(H)
Product Weight 3150g
Median Failure Interval 30,000 Hours
Warranty One year warranty, lifetime maintenance
10.0 Common Problems and Solutions
1. What to do if the VX matrix front panel keys switching not responsive?
Answer: The VX matrix front panel keys employ scanning testing and require longer response
time. Press the keys for 2 seconds and then release. This way, key switching will be
responsive in operation.
2. What to do if matrix does not display or color display is abnormal after hot plug?
Answer: Switching of the matrix system goes through the IC chips. If the voltage difference
between the input signal equipment and the matrix equipment is too large, hot plug
could easily cause damage to the IC chips. Please turn off power to the system before
plugging or unplugging.
3. What to do if ghosting happens when VGA signals output to display?
Answer: Ghosting is often caused either by the projector, inferior cable quality or long
transmission distance. You are advised to adjust the projector or replace with better
quality cable.
4. What to do if loss of color reproduction happens or no video signal output?
Answer: Please check if connectors at both ends of the VGA signal cable are correctly
connected.
5. What to do if the serial port (usually refer to the computer serial port) fails to control the VX
matrix?
Answer: Check that the communication port set by the control software is correctly connected to
the corresponding serial port of the equipment. Also, check if the computer
communication port is in good order.
6. What to do if the corresponding graphics fail to output during VX matrix switching?
Answer: (1) Check if there is signal on the input end. If there is no input signal, it could be that
the input connection cable is broken or the connector gets loosen. You are advised to
replace the connection cable.
(2) Check if there is signal on the output end. If there is no output signal, it could be that
the cable is broken or the connector gets loosen. You are advised to replace the
connection cable.
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(3) Check if the output port number is the same as the controlled port number.
(4) If none of the above circumstances happen, it could be internal failure of the product
itself. You must send for repair by qualified technical engineers.
7. What to do if the power LED is not on, LCD has no display and no response in operation?
Answer: Check if the equipment power input is in good contact.
8. What to do if you sensed power leakage during plugging or unplugging of the video ports?
Answer: It could be that the equipment power is not properly grounded. You must properly
ground your equipment, otherwise product life can easily be shortened.
9. What to do if the LCD displays normally and the communication port has return code but no
graphics output?
Answer: (1) It could be that the video connectors got loosen. Simply replace the connectors.
(2) It could be the connection cable short-circuited. Simply replace the cable.
(3) It could be the connection cable is broken. Simply replace the cable.
10. What to do if the VX matrix panel keys, communication ports and remote control are out of
order?
Answer: Check if the equipment power input is in good contact and the computer
communication ports are in good order. If yes, it could be some internal failure of the
product, please send for repair by qualified technical engineer .
11. What to do if operation and function failure occurred?
Answer: Check if the equipment and the matrix system are in proper connection. If the problem
persists, send the product to the maintenance center for repair.
NOTE:
Do not replace the power cord yourself. If the power cord is damaged, ask your distributor to
send qualified technician to replace it for you.
© C&C TECHNIC TAIWAN CO., LTD. All rights reserved.
Trademarks:
All the companies, brand names, and product names referred to this manual are the trademarks
or registered trademarks belonging to their respective companies.
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