Lenovo Y460 Y460P Common Problems

 Both Y460 and Y460p are divided into two types: thin screen and thick screen. The screen cables look the same, but they are not universal. If they are interchanged, they will short-circuit. 

The interface between the Y460 Y460P screen cable and the motherboard is easy to burn out. This kind of fault encounters several screen cable interfaces that are all burned. If you press the side of the switch bezel when the power is on, it will also cause a short circuit on the screen cable interface below. If you are lucky, you can still see smoke and smell burning, but the machine is still bright!! ! ! ! ! ! ! ! ! ! 

Both Y460 and Y460P have found a common problem, that is, the phenomenon of dark screen, whether it is a thick screen or a thin screen, the cause of the

The problem is ridiculous, so when you encounter a machine with a dark screen, don't rush to remove the screen Check the circuit, the problem is likely to be on the switch bar, because the standby chip on the switch board is the dark screen caused by the damage of the magnetically conductive triode. I tested and researched and removed nearly 30 bad switch bars, and the dark screen was almost all. is bad this one.
Detection method: Press the power button to turn on the machine. If the screen is dark, remove the switch board and the screen should light up.

Solution: If there is no replacement chip, you can just remove the triode directly, and the big deal is not to wait.