(First check whether the adapter or other power cables are faulty or have poor contact.)
äļãNo backlight, no display:1.Is the PC power switch turned on?
ReasonïžThe customer is unaware of the PC power switch.
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒïžPress the PC power button to turn on the computer.
2.Power supply is normal, PC power button light does not illuminate, motherboard red light.
Reason:
Motherboard defect.
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒ:Replace the motherboard.
3.Store data.
Reason:Motherboard storage capacity is full
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒ:Battery discharge (remove the battery for about 5 āļ§āļīāļāļēāļāļĩ, then reinsert it)
4.RAM Installation (āļāļāļĄāļāļīāļ§āđāļāļāļĢāđ)
Reason:Memory module loose connection, loosened due to transportation vibration
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒ:Heavy-duty truck memory module
5.RAM slot (āļāļāļĄāļāļīāļ§āđāļāļāļĢāđ)
Reason:Slot contact issue
Soluton:If there are dual card slots, you can switch to another slot.
6.High-voltage busbar
ReasonïžHigh-voltage busbar
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒïžāļāļēāļĢāļāļāđāļāļ
7.Backlight cable
ReasonïžPoor backlighting
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒ:āļāļēāļĢāļāļāđāļāļ
8.āļŦāļāđāļēāļāļāđāļāļĨāļāļĩāļāļĩ
ReasonïžLCD Screen Fault
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒ:āļāļēāļĢāļāļāđāļāļ
äšãBacklight present, no display:The external monitor is displaying.
ReasonïžThe BIOS resolution is incorrect.
Poor contact in the LCD screen cable
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒ:Flash the BIOS
Unplug the display cable. If that doesn’t work, replace the display cable. Replace the display cable.
äļãBlack screen after entering the system:Brightness Settings Issue
Reason:Set brightness to minimum
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒ:Increase the brightness on the external monitor.
åãSetup IssuesïžWhether BIOS and motherboard jumper settings are configured for power-on boot
Reason:Setting both power-on methods simultaneously will prevent the device from booting up.
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒ:Disable a power-on startup configuration method
äšãAfter running for a period of time, a black screen restart can restore itïžāļĢāļ°āļāļ
ReasonïžSystem error
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒïžReinstall the operating system
å ãTouch displayïžIs the keypad switch turned off?
āļŠāļēāļĢāļĨāļ°āļĨāļēāļĒ:Press the POWER button on the keypad.