Usual maintenance, often encounter the CPU power supply filter capacitor with a capacitance, Toshiba laptop, more commonly, failure phenomenon is not displayed: boot current transition less, the adapter does not show battery can be displayed, just need it replaced can use all sorts of strange failure of the occasional Huaping, we look at the artwork of this capacitor is shown in Figure 1:
Figure 1
Some such capacitors as follows as shown in Figure 2, as long as it is of such a shape basically similar, as shown in Figure 2.
Figure 2
This capacitor must first tear down demolition when need a little violence, otherwise you are not split down under normal circumstances, be removed to sure this capacitor is destroyed, if you want to not destroy and remove difficult , of course, is not impossible, BGA should be able to, but no need, since it has broken, removed after requiring the pad to clean up, as shown in Figure 3:
Figure 3
You can see, it has four rows of metal needle (silver tin with), of which around two capacitor positive, intermediate 2 is the negative terminal of the capacitor, at this time we can use a wire to the middle of two the way even one out ( because the two lines is, of course, you put two and even up and cited a line out can) do the public the negative electrode of the capacitor, the capacitance of 6 330 notebook motherboard and then go on to find all six positive outwards, 6 a negative even together received just leads to the public’s negative online, you need to pay attention to the insulation, positive and negative that they do not touch each other on it, you can play with a multimeter positive resistance to ground without CPU will hundreds Europe, coupled with the CPU for about 10 or so in Europe, but definitely not Europe, complete good diagram as shown below.
Figure 4
After the above operation, the common problem is completely overcome, and never relapse, we understand? I think I said enough to understand, if where we do not understand, you can thread consulting, and hope that we can learn more techniques here. The Hengda repair chain obligation Technician will be happy to serve you!
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