Toshiba L850-1R1 No image

[Sojke]

Hi guys. I have an Toshiba L850-1R1 with i7 quad core and HD7670M Graphics. It does not display an image, but it turns off and on instantly as if everything is working, no need to hold power button. Power ON and charger ember led are lit during its operation (Ember comes on a bit latter). Replace BIOS but unsure if correct version, no image. Replaced Graphics chip but still no image.

Can any one guess what´s wrong (I didn´t check LVDS power)?

[ridamouh159]

Re: Toshiba L850-1R1 No image

post here your PART NUMBER

[Sojke]

Re: Toshiba L850-1R1 No image

Model is PLF/CSF 45W UMA & DSC MB
Rev 2.1

[sancheti81]

Re: Toshiba L850-1R1 No image

hi guys. I have an toshiba l850-1r1 with i7 quad core and hd7670m graphics. It does not display an image, but it turns off and on instantly as if everything is working, no need to hold power button. Power on and charger ember led are lit during its operation (ember comes on a bit latter). Replace bios but unsure if correct version, no image. Replaced graphics chip but still no image.

Can any one guess what´s wrong (i didn´t check lvds power)?

try flashing bios

[Sojke]

Re: Toshiba L850-1R1 No image

Problem was solved with a brand new graphics chip.
Laptop would not start with that BIOS (sancheti81).