Dell achievement 14-3468 notebook no booting repair
Machine model: Dell achievement 14-3468
Motherboard model: 15341-1
Fault phenomenon: notebook no power on
no power on nd-by of the dell-3468 is an original c40.054 laptop.It was found that the isolation pipe was pasted, and it was directly removed. The measured ground value was 245, which was a little low.Check the drawings, directly find an n tube to replace,PAD will paste the place off, a lump of tin.
Dell achievement 14-3468 notebook no booting repair Figure 1.
Insert large current directly, the root of the problem is caused by large current.Current heating test finds the fault point, and the large Capacitor under Switch FPC.
Dell achievement 14-3468 notebook no booting repair Figure 2.
After the auto power off capacity was closed, the standby status returned to normal, and switch was normal. After entering the system directly, it was found that there was no independent graphics card.After cleaning, it was found that one corner of GPU crystal was damaged.
Dell achievement 14-3468 notebook no booting repair Figure 3.
After Repeat welding,switch to 0.385 auto power off, there is no BGA Rework Station Reballing, abandon the independent display and directly change to an integrated graphics card.
Dell achievement 14-3468 notebook no booting repair Figure 4.
First remove Inductor, or auto power off. After removing Inductor,VCC chip of video card and VCC chip of video memory, start the system normally.
Dell achievement 14-3468 notebook no booting repair Figure 5.
Note: This machine can be changed to a centralized display by removing the VCC chip.
Dell achievement 14-3468 notebook no booting repair Figure 6.
Dell achievement 14-3468 notebook no booting repair Figure 4.
First remove Inductor, or auto power off. After removing Inductor,VCC chip of video card and VCC chip of video memory, start the system normally.
Dell achievement 14-3468 notebook no booting repair Figure 5.
Note: This machine can be changed to a centralized display by removing the VCC chip.
