Re: Need detailed schematics of sony vaio SVE15125CNB has Z50CR MBX-266 motherboard

Ok, i again measured the resistance and found that 1st mosfet is showing resistance slowly increasing from 28 ohms to higher values.

Re: Need detailed schematics of sony vaio SVE15125CNB has Z50CR MBX-266 motherboard

Sir, resistance were measured and found high for mosfets, and for resistors PR4004, PR4005 are 2.8 ohms they are coded on top as "SR1".

Re: Need detailed schematics of sony vaio SVE15125CNB has Z50CR MBX-266 motherboard

Ok sir , I have removed the charging ic and check the terminals and found that 20 pin has shorted to ground as 20 pin and 14 pin shown continuty. After removing ic i have check the input of vcc point on mb and it gave 19v and resistors are now no continuty to ground. Is that the 19v rail is ok ?

Re: Need detailed schematics of sony vaio SVE15125CNB has Z50CR MBX-266 motherboard

Hi sir, can you guide me to sort out the problem, is it the charging ic damaged or anyother which is before charging ic and also if 20r0 is resistor then can i know its wattage and tolerence.

Re: Need detailed schematics of sony vaio SVE15125CNB has Z50CR MBX-266 motherboard

And Bq25a charger ic pin 20 vcc is showing continuty to ground, is that ok or a problem

Hi everyone,
As i have hannstar j, Z50CR MB sony mbx266 mother board for SVE15125CNB model.
Recently it was hit by a rootkit/bootkit virus, which flashed bios, and made it idle as when power switch was pressed it just on and off every 2 seconds, no display, then i flashed bios and removed hdd, laptop was power on and it booted everything worked good, but when hdd connected it again went into same state no display, on and off. Again i flashed bios and this time i booted usb with anti virus and then connected hdd and virus were detected and deleted, but when restarted it again went...