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Dell Achievement 14-3468 notebook does not trigger repair
Dismantle the inductor first, remove it or turn off the power. After removing the inductor, power supply chip of graphics card and power supply chip of video memory, start it into the system normally.
ASUS U303L notebook repeatedly loses power and restarts repair
Measure PU8000 VCCIN_EN, and drop it first when it is obviously turned on. It shows that there is abnormal or unstable voltage before CPU power supply. Directly disassemble the resistor PR9104, the power has not been cut off, and 12V sounds normal.
Samsung A9100 mobile phone repair without charging
Samsung A9100 mobile phone repair without charging Machine model: Samsung A9100 Fault phenomenon: the mobile phone does not charge. Maintenance process: A Samsung A9100, which fell heavily, had no sound after changing the screen for two days. Plug in the…
Gigabyte GA-X58A-UD3R mainboard does not start for repair
3VDUAL also supplied power to U49 chip, and it was found that there was something wrong with the pin position of U49, and 48 and 49 pins were connected together.
Asus EX-B150M-V3 REV.1.02 3606 bios pro-test is easy to use and fast to boot
Asus EX-B150M-V3 REV.1.02 3606 bios pro-test is easy to use and fast to boot The bios CAP format downloaded by ASUS official website is separated by itself. It has been tested and started very fast. I use i3 6100. If…
Apple MacBook Pro A1502 notebook does not recognize hard disk repair
The leakage of capacitor C1292 lowers the power supply by 1.5V, which causes the bridge SATA module not to work and thus denies the hard disk.
ACER FH4HR MB_ LA-J731P _R10 PDF
ACER FH4HR MB_ LA-J731P _R10 PDF 图1 ACER FH4HR MB_ LA-J731P _R10 PDF 图2 ACER FH4HR MB_ LA-J731P _R10 PDF 图3
Apple MacBook Air A1466 notebook triggers power failure repair
Apple MacBook Air A1466 notebook triggers power failure repair Machine model: apple MacBook Air A1466 Motherboard model: 820-00165 Fault symptom: the notebook triggers power failure. Maintenance process: A MacBook Air A1466 notebook, when it failed, it was powered off instantly,…
IPad Air3 A2134 startup dark screen without backlight repair
The measured voltage, inductors L82P0, L82R0 and diode D820D82P0 are all supplied with VCC 4V, but there is no boost. The large inductor and two diodes are directly replaced, and the base is back to 500, which is normal.