Hi friends
mbx-165 gpu g86-750-a2 replaced by new g86-771-a2 .
laptop works and vga output for external monitor is ok but there is a problem on its own screen.
There is a red shadow in the pictutre.
lcd and it's flat cable are changed and they are ok.
emergency help need.
any suggestion please.

Make printscreen under Windows, save it to file and check:
If you have shadows in the file - chip problem. If you havn't - interface problem.

Thanks for reply ,but screen output is ok on the external monitor from vga output,so i think screenshot will be ok.
by the way i'll try to check it.

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[size=85][color=#DA573B]Posted after 38 minutes 7 seconds:[/color][/size]
screenshot picture is ok .
waiting to any help pls.

Почистить контакты LVDS кабеля со стороны матрицы, перевоткнуть его. Не поможет - заменить на новый.

That chipset was ok on the other exactly same motherboard.
i mean the problem was not the chipset , and i could not find it,maybe it was something about motherboard cupper lines...