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Toshiba U500-1CN (mainboard A1 INTEL MV DSC MAIN BOARD REV 2.3 no power on

Troubleshooting Laptops & Notebooks - Badcaps Forums - www.badcaps.net
Good day forum. I have this A1 INTEL MV DSC MAIN BOARD REV 2.3 motherboard that does not go into power on. I can not find any tension in the coils. I tried to reprogram a bios with a dump found on the net but nothing to do,

I checked in the charger area and I realized that the acok signal does not come out of the charger. Here are the various measurements coming out of the charger isl88731:

pin 2 3,68V

pin 3 3,21v

pin 4 0v

pin 5 0,20v with oscillation

pin 6 0v

pin 7 NC

pin 8 0v

pin 9 0,11v

pin 10 0,11v

pin 11 0,11v

pin 12 0v

pin 13 0,11v

pin 14 NC

pin 15 4,0v and go down slow

pin 16 NC

pin 17 ,40 v

pin 18 0,48v

pin 19 0v

pin 20 0v

pin 21 5,11v

pin 22 19,45 v

pin 23 0,92v

pin 24 1,11v

pin 25 4,81v

pin 26 5,07v

pin 27 18,94v

pin 28 18,94v


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