Cnx 458 problem on sony vaio

[Alschepmist]

Re: Cnx 458 problem on sony vaio

I have changed w_pq81 and w_pq82 and a more 1 capacitor and now works thanks!!

[caspian]

Re: Cnx 458 problem on sony vaio

This is so great.

[kylin]

Re: Cnx 458 problem on sony vaio

Hi everybody, sorry for my english i am french
I have a problem with an laptop Sony no power up, no led
He have the same powerboard cnx 458

I cant test mosfet W_PQ81 and W_PQ82 because my probe are too big

If i have 19.4v on the big resistor R010 between coil and W_PQ81,W_PQ82 my powerboard is good or not ?

I have only 19.4v on the big resistor when i test the powerboard alone

When plugged with the mainboard i have nothing on the big resistor

My problem is on my mainboard or powerboard ?

Thanks