Hello.
I have problem with a toshiba C855-27U. Motherboard model is PLF/PLR/CSF/CSR DSC MB REV:2.1 (H000052630 WK1327) (7C050790814B).
MOTHERBOARD is full led and after some second close without anything in screen (black screen). i have rework both chip vga and PCH .tried already CPU+ram + reset + bios program nothing. laptop has no screen.
i notice that a power chip TPS51225C is very hot so i have ordered and i change it but still the same behaviour.this chip is near in PCH near to JP8101 also.
I want to find SCHEMATICS but nothing.
Now i have a second laptop with exact the same behaviour. so its a standard problem.
Please help for schematic or any help....
I have problem with a toshiba C855-27U. Motherboard model is PLF/PLR/CSF/CSR DSC MB REV:2.1 (H000052630 WK1327) (7C050790814B).
MOTHERBOARD is full led and after some second close without anything in screen (black screen). i have rework both chip vga and PCH .tried already CPU+ram + reset + bios program nothing. laptop has no screen.
i notice that a power chip TPS51225C is very hot so i have ordered and i change it but still the same behaviour.this chip is near in PCH near to JP8101 also.
I want to find SCHEMATICS but nothing.
Now i have a second laptop with exact the same behaviour. so its a standard problem.
Please help for schematic or any help....
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