Toshiba L50-A VGSG MB 2.1

[ismailakyoltr]

Hi. Is there a VGSG MB 2.1 schema? (PSKK6E) intel i7 ( TPS51225 12. pin short circuit ) The vga chip is warming up when the 12. pin is manuel flowing

[MJ-meo-dmt]

Re: Toshiba L50-A VGSG MB 2.1

Try https://www.badcaps.net/forum/showthread.php?t=63440

[ismailakyoltr]

Re: Toshiba L50-A VGSG MB 2.1

Try https://www.badcaps.net/forum/showthread.php?t=63440

Thank you. But they have shared there VGFG. VGSG components in different places. I'll try progressing from VGFG.

[MJ-meo-dmt]

Re: Toshiba L50-A VGSG MB 2.1

Right yeah they are different but sometimes they are not too far apart... Let me know..

What do you mean by "manuel flowing" ? Are you injecting voltage? Because Pin 12 is VIN for the step-down controller (3.3V/5V) https://cdn.badcaps-static.com/pdfs/...2c6e6f33b6.pdf

Would be weird for the VGA chip to warmup unless its warmup in means to "normal operation" Not sure exactly what you mean by what you said....

Anyways
Goodluck

EDIT: The VGA chip would have its own step down controller (or supply chip) in some cases(so many possibilities). 0.8V - 1.8V may even be 2.5V (depending which type it is and a bunch of other things....)

[ismailakyoltr]

Re: Toshiba L50-A VGSG MB 2.1

Yes, injection voltage (5v 2a) to PIN 12. But, the vga chip is warming up. I removed the other components, but the short circuit is not going. I think the video card is faulty.

[MJ-meo-dmt]

Re: Toshiba L50-A VGSG MB 2.1

Uhm Do you have short on the 1.05V rail aswell? Would you try to disable Dedicated GPU? Assuming it has Intel CPU with HD Graphics.

You can try to work off the other Boardviews and find DGPU_EN_PWR and so on...

[ismailakyoltr]

Re: Toshiba L50-A VGSG MB 2.1

Ty. I will try.