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Huawei kprc-w10l laptop plug-in charger does not respond to repair
Machine model: Huawei kprc-w10l
Board No.: dah96pmbab0 Rev: B
Fault phenomenon: the notebook charger does not respond Maintenance process: A Huawei kprc-w10l notebook, the fault is that the battery is normally turned on into the system, and there is no response when the charger is plugged in.
Remove the machine, found the interface position, a chip scorched, a chip bubble.
Huawei kprc-w10l laptop plug-in charger does not respond to repair Figure 1.
Huawei kprc-w10l laptop plug-in charger does not respond to repair Figure 2.
Huawei kprc-w10l laptop plug-in charger does not respond to repair Figure 3.
After the 8s30 was removed, it was found that the lower part was scorched and Short circuit was serious.At this time can only use another method: change decoy! The wiring diagram of the decoy is changed and the connection method of the decoy is determined.
Huawei kprc-w10l laptop plug-in charger does not respond to repair Figure 4.
Huawei kprc-w10l laptop plug-in charger does not respond to repair Figure 5.
Modification of decoy device:
Huawei kprc-w10l laptop plug-in charger does not respond to repair Figure 6.
Huawei kprc-w10l laptop plug-in charger does not respond to repair Figure 7.
After the circuit change is completed, plug in the charger test,Normally booting up, the charging is normal, troubleshooting, maintenance is over.
Huawei kprc-w10l laptop plug-in charger does not respond to repair Figure8.
