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LCD no display when power on
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[ Failure phenomenon ]
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- Power button, power indicator led, Num lock led and Caps lock led always on, but LCD no display.
- Power button and power indicator led flicker, LCD no display.
- All LED lights are normal, but LCD no display.
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[ Recommended solution ]
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- a) turn off the machine, cut the power off, clear CMOS
b) Change CPU, MEM
c) Check the MEM socket jointing
d) Change mother board
- cut all power off, wait for a moment, then power on and try again
- a) switch display menu by "Fn+F7"
b) Connect VGA cable to CRT; check the display on CRT screen
c) Change LCD cable, inverter or LCD to find the wrong parts.
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LAN can’t work properly
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[ Failure phenomenon ]
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- can not connect to network absolutely
- 100M can work ok, but 10M can’t work
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[ Recommended solution ]
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- Check the server works properly.
- change lan cable and try again
- check the IP address
- change mother board
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Camera can’t work properly
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[ Failure phenomenon ]
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- color abnormal
- image reversed
- camera can’t work
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[ Recommended solution ]
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- adjust the camera APP option setting
- make sure the camera cable connected correctly
- check the excalmatory mark on camera device from device manager
- change camera
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WLAN can’t work properly
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[ Failure phenomenon ]
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- unable to connect to internet
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[ Recommended solution ]
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- check the wireless router
- check the wlan card antenna connection
- open wlan by hot key“Fn+F3”
- reinstall wlan driver and APP
- change WLAN card
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System Blue Screen
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[ Failure phenomenon ]
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- System display blue screen sometimes.
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[ Recommended solution ]
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- possibly it is caused by virtual memory not enough; delete the temporary files or folders to release more space.
- change CPU or CPU FAN.
- change other Memory
- check the virus in HDD disk and other storage device
- check whether there is any disk in DVD/CD driver, if so, take it out and try again.
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