ASUS x550jd laptop boot gray screen, external display normal, magic line second repair.
Lenovo g410 booting up displays logo on auto power off. Remove the field tube uv4 and repair the fault.
Lenovo's Y7000 notebook doesn't recognize its unique display. Replace VCC chip and troubleshoot.
ASUS k43sv powered on 0.16 laptop no booting, and the fault was repaired after replacing MOSFET.
Lenovo y400 nm-a141 notebook does not power on, and the problem is solved after replacing the damaged g718t.
Hasee K650D-G4D2 notebook is not turn on. It was found that the R705 was damaged after testing. After replacement, Q25 was removed. Pins 1 and 6 were connected, and pins 3 and 4 were connected. The fault was perfectly repaired.
After the k650d of Shenzhou Zhanshen entered the system normally,splash screen alarm signal was disconnected abnormally, which led to CPU H_CPU_Svidalrt ා signal can not communicate with the CPU chip VCC normally, which causes the CPU to work abnormally and causes splash screen.
Lenovo S2 notebook not turn on was found to be caused by pq2099 damage after testing, and the fault was repaired after replacement.
Microsoft Surface pro4 notebook no booting,The problem is solved after replacing small components.
