Failure 1
Can't Start-up (The LED is on but screen shows 'no singal' and have no other warning)
Possible Causes
RAM getting loose
RAM is defected
RAM bank is rusted
Motherboard is defected
Solution
Take out the memory and turn on the computer. If there is a harsh beep, it means the motherboard is OK, then check if the RAM got loose?  If not, please replace a new workable ram to try., if not working, use a rubber to clean the RAM. If the machine is quiet, that means the mother board is damaged.

Failure 2
Can Startup,but LCD Screen show nothing(This circs means The LED is on and the buzzer is ringing.)
Possible Causes
The cable connecting Mainboard & AD Board is bad.
The cable connecting AD Board & Inverter is bad.
Solution
Reconnect cable
Replace cable
Replace Inverter
Replace AD Broad

Failure 3
Can not boot from CDROM
Possible Causes
The cd-cable is bad
The cd-card is bad
The cd-rom is bad
The main Board is bad
Solution
Reconnect cd-cable, if it not helps, replace another cd-cables, if it not helps too, then replace another cd-card, if it not helps, please replace new CD-ROM, or maybe the mainboard is bad

Failure 4
The Touch screen can't work normally
Possible Causes
The driver installation is not correctly
Calibrate touchscreen is not exactly
The touchscreen control-card is bad
The Touchscreen is bad
Solution
Uninstall touch screen driver,after reboot PC,then reinstall driver,Calibrate it exactly.if it not help please replace control-card or touchscreen.

Failure 5
while black screen when start-up PC
Possible Causes
The contact about LCD screen cables is bad
The LCD screen cables is bad
The AD Board is bad
Solution
Reconnect LCD screen cables
Replace LCD screen cables
Replace AD Board

Failure 6
The colour of LCD tends to red after startup PC
Possible Causes
The cable connecting mainboard & LCD is loose
The LCD screen cable is bad
The AD Board is bad
The LCD screen is bad
Solution
Reconnect LCD screen cables, if it not helps, replace it, if it not helps and you have another good main board,please replace the mainBoard and test it again, if the problem still exists, please replace the LCD.

Failure 7
The PC turn off automatic after run a moment.
Possible Causes
The temperature of interior computer is very high
The capability of RAM is not steady
The capability of Main Board is not steady
Solution
Check the FAN if lt run normally, if not, repalce another good RAM to test again, if it not helps, then replace Mainboard.

Failure 8
Can not install OS
Possible Causes
The system disk is bad
The Hard driver is bad
Solution
Replace another system to install,partition district again.

Service Contacts
Service Web Site:www.lcdpc.com.cn
Customer Service Email:support@lcdpc.com.cn