Lenovo Xiaoxinchao 7000-13 notebook computer Won't Turn On, this is common failing. After testing, it was found that Capacitor next to the charging chip and Capacitor of the screen VCC interface were damaged, and the fault was repaired after replacement.
The startup screen of Dell 5750 laptop is not bright. It is found that it is a bridge problem after testing. The fault is repaired after flying the line.
Dell 3421 notebook screen is dark and the backlight is not bright, which is caused by small components.
Lenovo Z410 turned on the fan wildly and lost power. It directly changed the integrated graphics card to brush the BIOS, and the fault was perfectly repaired.
Dell 14Z-5423 laptop cannot be charged, replace PSID_ After EC, the fault is perfectly repaired.
Lenovo Xiaoxin air 14ikbr notebook screen is dark, replace Q1 MOSFET and Fuse, the display is normal.
Dell P65F laptop charges slowly. It is found that pr311 is damaged after detection. The fault is repaired after replacement.
Apple A1466 notebook Won't Turn On, detection found that the pin of the chip burned out, and the chip burned out pin to make up for it, and the BIOS was successfully repaired after booting slowly.
Lenovo Z50-70 notebook did not turn on due to water ingress. After testing, it was found that it was caused by a resistance corrosion on the motherboard. After replacement, it was repaired Reply.
