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COMPUTER,LAPTOP,MOBILE PHONE,PRINTER,MOTHERBOARD CHIP LEVEL SERVICING THEORY AND PRACTICAL

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Laptop Fault finding & repair methods

1, laptop repair failure - phenomenon: no power
no response by pressing the power switch
laptop repair - major fault location: the power, the power switch, power board, board .

2, the notebook breakdown maintenance - phenomenon: Power is off after power indicator light, the display No response notebook repair - major fault location: BIOS, CPU, motherboards, graphics cards, memory, signal line.

3, laptop repair failure - phenomenon: dark screen after boot, the screen is very dark laptop repair - major fault areas: the motherboard, the signal line , pressure plate, LCD backlight tube .


4, notebook breakdown maintenance - phenomenon: Huaping boot, the display, like flowers or like cloth laptop repair - major fault location: BIOS graphics parts, memory, signal line, the LCD screen .

5, laptop repair faults - phenomenon: black and white boot, white screen, laptop repair - major fault areas: the graphics area, the signal line, the LCD screen
6, notebook repair failure - phenomenon: the LCD screen has a bright line LCD display with a horizontal or vertical bright-line notebook repair - major fault areas: the LCD screen, the signal line.

7, laptop repair failure - phenomenon: the LCD screen has a bright LCD display with white highlights laptop repair - major fault areas: the LCD screen, LCD panels.

8, repair laptop failure - phenomenon: the battery charge is not into power with an external power supply charge, the battery shows zero notebook repair - major fault location: battery, power panel, battery interface board, board .

9, notebook breakdown maintenance - phenomenon: does not recognize the hard disk in the BIOS or system not recognize hard drive laptop repair - major fault location: BIOS, hard drive, interface board, the motherboard.

10, laptop repair failure - phenomenon: does not recognize optical drive not recognized in the BIOS, notebook repair - major fault location: BIOS, CD-ROM, interface, board.

11, laptop repair failure - phenomenon: does not recognize peripherals such as USB, PC card, cat card, and other laptop repair - major fault position: bad peripherals, interfaces, BIOS, interface board, the motherboard.

12, laptop repair failure - the phenomenon: Power crash boot time or from time to time can not run the program into the system or laptop repair - major fault areas: operating system, memory, CPU, cooling components, motherboard .

13, laptop repair failure - phenomenon: the machine does not enter the system does not boot into the system in laptop repair - major fault areas: operating system, memory, CPU, motherboards, interface board.

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