First, remove the battery of the notebook itself. In fact, there are still many people who don't understand the battery of notebook. I see a big groove at the top of the picture, which is the position of the battery.

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According to the instructions, first check whether there is a signal (waveform) at the input and output terminals, and then check the control signal (clock) of the IC if there is. If there is, it is likely that the IC is broken, and there is no control signal. Trace it to the pole before it until the damaged IC is found.

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Then the red line refers to the flat cable used to connect the keyboard and the motherboard. The next step is to completely remove the keyboard. First remove each key cap on the keyboard.

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Then remove a larger cover plate in the middle and fix it with screws. Then take out the wireless network card, hard disk, memory and CD-ROM drive. Then remove all the screws that can be seen on the back shell of the notebook, which is the preliminary work.

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It can be seen that the keyboard is composed of a board and a circuit board. The board plays a supporting and fixing role, and the real soul part is this circuit board. The circuit diagram is covered with long, short and winding mercury lines.

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The general arrangement of INVINTEC is 6050a 2030501-MB-A05-20040514, and the motherboard of Compal can generally find the LA number, such as LA-4 1 12P.

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Quanta generally consists of English letters and Arabic numerals, such as CT8, ZR3, SW7, GD 1, and Wistron generally consists of pure English letters, such as Shibuya BIWA, Spears, Kay, Akita and Haneda.

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