Lenovo Xiaoxin LA-GP651P has no standby repair

Lenovo Xiaoxin LA-GP651P has no standby, replace Capacitor, blow PL401 back, and the ground is normal. When the motherboard current is connected, it immediately jumps, and it is turned on.

Machine model: Lenovo xiaoxin LA-GP651P Rev:1.0

Fault phenomenon: no standby

Maintenance process: I just connected DC power supply for the first time, and the current went up to more than 1A. After the current is only 0.005, disassemble the bare board and connect it to DC power supply. Look at this motherboard model directly at 0.005, and there is not much information. Measure the major Inductor, and sure enough, one Inductor is found to be right.

Lenovo Xiaoxin LA-GP651P has no standby repair Figure 1.

Searched Lenovo Xiaoxin LA-GP651P Rev:1.0 on Xunwei. com, as shown in the following figure:

Lenovo Xiaoxin LA-GP651P has no standby repair Figure 2.

Blow PL401 down, and make sure it’s +3VALWP over 20 to the ground. Get an Current heating test, adjust the current to 1.5A, and the back will be scalded immediately.

Lenovo Xiaoxin LA-GP651P has no standby repair Figure 3.

Looks like Lenovo’s common failing again. Replace Capacitor, blow PL401 back, and it’s normal to the ground. When the motherboard current is connected, it immediately jumps, and it’s turned on. The maintenance is over here!