Vaio VPCSB2M9E/PCG-41218M dead after drop

[Learn2Day]

Re: Vaio VPCSB2M9E/PCG-41218M dead after drop

I didn't. I confirm, F1 is blown in my board too. Thanks.

[atsio]

Re: Vaio VPCSB2M9E/PCG-41218M dead after drop

Your initial problem was that the charger wasn't sending ACOK signal to EC IC. Probably you created a short on the 19v line and blown the fuse.
The short is still there because you have a short on pins 19 and 20 of charger IC

[Learn2Day]

Re: Vaio VPCSB2M9E/PCG-41218M dead after drop

The short on 19v line was coming from the main board, solved after replacing shorted capacitor. This is what probably has blown the fuse. I no longer have a short between pins 19 and 20 but ever since it occurred, I have sparks coming from image markings.

[atsio]

Re: Vaio VPCSB2M9E/PCG-41218M dead after drop

What do you mean with "image markings"?

[atsio]

Re: Vaio VPCSB2M9E/PCG-41218M dead after drop

If I understand correctly, sparks on pins 19,20 of charger and the 2 resistors. Can you post pictures from the top but clean thoroughly the area before doing that?

[Learn2Day]

Re: Vaio VPCSB2M9E/PCG-41218M dead after drop

I have those pics in my earlier posts. Yup, you understood correctly.

[atsio]

Re: Vaio VPCSB2M9E/PCG-41218M dead after drop

I needed an new clean one to see the lines of the two resistors. Did you solder the charger ic with hot air or hot iron?

[Learn2Day]

Re: Vaio VPCSB2M9E/PCG-41218M dead after drop

Hot air, I can't even imagine soldering such a tiny IC with a iron. Can't go back in time to get a clean photo, sorry. Don't feel bad atsio, I do assume I still make mistakes. In this case, I might have bitten more than I could chew soldering such a tiny IC in such a crowded board.

[atsio]

Re: Vaio VPCSB2M9E/PCG-41218M dead after drop

With all IC's, if I solder them by hot air, in the end I use the iron to be certain that the connections to the pads are solid