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yx

Joined: 2021-11-01
Articles: 558

Desktop PC Schematics, Desktop PC BoardView, Laptop BoardView, Laptop Schematics

Schematic diagram of L8556E9 booster driver

The Schematic, Circuit Diagram PDF file for Schematic diagram of L8556E9 booster driver File info Pages: 37 Format: PDF File Size: 1.70MB Schematic Preview Download Download XinZhiZao maintenance software to view the full MSI Motherboard 7640-14-0622 Schematic Diagram.

yx
2023-03-28

Laptop Repair Guide

Lenovo Miix 510 notebook external keyboard can’t be repaired

The WWAN position on the motherboard is empty, and even the slot is not installed. Check that the pins 7 and 9 of the drawing correspond to the two data pins of USB, cut off the wiring of the data terminal of the keyboard interface, and fly the wire to the pins 7 and 9 of WWAN. Installation test, the external keyboard can be used, fault repair!

yx
2023-03-28

Desktop PC BoardView, Desktop PC Schematics, Laptop BoardView, Laptop Schematics

The Schematic, Circuit Diagram PDF file for Thinkbook 16p r9000x motherboard drawing+dot bitmap

The Schematic, Circuit Diagram PDF file for Thinkbook 16p r9000x motherboard drawing+dot bitmap File info Pages: 37 Format: PDF File Size: 1.70MB Schematic Preview Download Download XinZhiZao maintenance software to view the full MSI Motherboard 7640-14-0622 Schematic Diagram.

yx
2023-03-27

Laptop Repair Guide

Repair of Asus Notebook FX80G Insulating Tube with Slab Burning

Found that standby is 0. According to the drawing, measure each pin of the chip, burn the machine directly, and feel that the PC388 capacitor is seriously hot, and it will not be short-circuited after being pulled out.

yx
2023-03-25

Smartphone & Pad Repair Guide

Apple iPhone 6s Plus has no 4G mobile network fault repair

Check "About this machine" and find that there is no baseband, make up the dropped inductance and install the motherboard into the machine. Boot test shows that the version of "Modem Firmware" in "About this machine" is normal, indicating that the baseband has been working normally.

yx
2023-03-25

Laptop Repair Guide

Lenovo notebook 320-15ISK boot does not trigger fault repair

3V standby, replaced by an AMS1117-3.3, suspected that there is something wrong with the graphics card chip, turned off the power, removed the power supply inductor of the graphics card, and powered on again. The machine runs normally, the fault is repaired, and the maintenance is over.

yx
2023-03-23

Laptop Repair Guide

Troubleshooting of Lenovo rescuer Y9000X 2020 notebook when it is not turned on

Brush BIOS first, and buy pure ME BIOS, but the programmer does not support QH128AHIG, and it is successful to switch to 25L12873F. The sound of the boot test is also normal. The fault is perfectly repaired.

yx
2023-03-22

Desktop PC BoardView, Desktop PC Schematics, Laptop BoardView, Laptop Schematics

The Schematic, Circuit Diagram PDF file for Schematic diagram and point bitmap of surface pro4.

The Schematic, Circuit Diagram PDF file for Schematic diagram and point bitmap of surface pro4. File info Pages: 37 Format: PDF File Size: 1.70MB Schematic Preview Download Download XinZhiZao maintenance software to view the full MSI Motherboard 7640-14-0622 Schematic Diagram.

yx
2023-03-21

Laptop Repair Guide

Apple MacBook Air A1465 notebook motherboard does not trigger fault repair

There was no response when pressing the power button. I found that the vicinity of the USB conversion chip was hot, and the chip was removed, or it was against the ground, and the capacitor next to it was removed. Power-on test, perfect lighting!

yx
2023-03-21

Blog

Repair of Huawei Glory X30i mobile phone without service failure after water inflow

Check the small board and find that there is corrosion next to the microphone. Remove the chip, clean the pad and redo the filter next to it. Boot test, perfect repair. Machine model: Glory X30i

yx
2023-03-20