[Toshiba C660-226] LA-6842P rev1.0 won't boot, black screen.

[Einikki]

Hi, i need help to resolve a startup problem on a laptop C660-226.
It's my first attempt to resolve an electronic problem.

The mother board is an PWWAA LA-6842P Rev 1.0

At start up the fan is turned on an thats all, no display
By pressing power button i can turn off fan
The battery charge is ok.

My first problem is to found the Revision 1.0 shematics. I have found rev 0.2 that seems to be similar but i'm not sure.

I've already checked some voltages but without good shematics i can't be sure. Can any one to tell me if power supply shematics are the same betwin rev 0.2 and 1.0 or give me 1.0 schematic?

Thanks

[atsio]

Re: [Toshiba C660-226] LA-6842P rev1.0 won't boot, black screen.

Don't worry the are usually the same (specially on power section) except they've changed a major part (i.e. charger ic, kbc ic, etc)

[OHENABA]

Re: [Toshiba C660-226] LA-6842P rev1.0 won't boot, black screen.

Please I have similar problem.. Voltages seems to be okay but machine will not boot to screen... Any idea what could be the problem.. Thanks

[sabry580]

Re: [Toshiba C660-226] LA-6842P rev1.0 won't boot, black screen.

thank you

[alas3376]

Re: [Toshiba C660-226] LA-6842P rev1.0 won't boot, black screen.

Did you try reprogram bios?