HP Pavilion DV7 Laptop will not turn on only for a second
Today we have reviewed the main power circuits and there is no problem. Then I moved to the sub-power circuits of the chipsets and the processing circuits. In general, I found that there are shorts in capacitor number PC53 which is An output capacitor for the 1.5VSUS voltage as shown on the diagram and the capacitor lift and out-of-circuit measurement is shown to be ok and the problem is in ic PU3.
In the remove it , the output shorts disappeared on the PC53 capacitor. I changed the ic with the same number.
The result, thank God and nothing happens only when he wishes
