Toshiba c850 black screen with caps lock and numlock working please help

[khaledalhanafy]

I have in my office many laptop c850 with the same problem
And Iam buyed wds 620 rework station but I want help
How can I know which chip is falling amd2016-0810028 or slej8e it must chang it or what is the solution please

[evgenigenko]

Re: Toshiba c850 black screen with caps lock and numlock working please help

graphical chip is 216-0810028, but before you change it, i suggest trying just to reflow it, and see if there is picture, then you can try replacing it.

Other method you can use to test the video chip is measuring the resistance of the chip to gnd. if it is more than 5-10 ohm most likely is failing...
please leave feed back after you try some of the methods.

[Th3_uN1Qu3]

Re: Toshiba c850 black screen with caps lock and numlock working please help

Definitely AMD chip, intel chipset (despite getting hot) has no play in this issue.