Toshiba Satellite C50-b918 dead

[infoplus]

Hello.

i have Toshiba Satellite C50-b Motherboard LA-b303p rev 1.0
Pressing the the power button the fan start to spins no stop....
but no display at all

i tried everything removing battery ,ram ,hdd but nothing changes
tried a new ram but nothing

tried flash bios and ec with new file nothing happen....

please help me

[mcplslg123]

Re: Toshiba Satellite C50-b918 dead

You can search for B301P schematics and its almost same as B303P. Might help you.

[infoplus]

Re: Toshiba Satellite C50-b918 dead

I have schematic for la-b303p
http://www.ontikka.com/download/2081/

[Techtiger]

Re: Toshiba Satellite C50-b918 dead

test
PJW02
PJW04
PJ1103
PJ1803
+SOC VCC
+SOC VNN

[infoplus]

Re: Toshiba Satellite C50-b918 dead

Pjw02 ---- 1.35v
pjw04----- 0.68v
pj1103---- 1.0v
pj1803---- 1.8v
+soc vcc 0.72v
+soc vnn 0.78v

[Techtiger]

Re: Toshiba Satellite C50-b918 dead

did you try with a external Screen ?

[infoplus]

Re: Toshiba Satellite C50-b918 dead

yes nothing ....

[Techtiger]

Re: Toshiba Satellite C50-b918 dead

Also check the Ram slot for Voltage
check PMC PLTRST
If all power sequence is good you are having a Bios issue or a Dead SOC try to reflow the CPU