EPK50 LA-G07EP Rev 2.0 black screen

[periquitodel]

I tried with bios in this post https://www.badcaps.net/forum/showth...46#post1066246 but laptop not working.

laptop is turning on, fan spins, but screen keep in black. If I use phone torch I can see screen in black for some seconds, and then laptop restarts over and over.

I saw this youtube video https://www.youtube.com/watch?v=LElrfsf1Xp8 but motherboard its not the same.

Thanks!

[mcplslg123]

Re: EPK50 LA-G07EP Rev 2.0 black screen

Do you mean you have image but no baklit on screen and it keeps in loop.

[periquitodel]

Re: EPK50 LA-G07EP Rev 2.0 black screen

No image. Only screen get darker, like its working but no image and no backlight.

[mcplslg123]

Re: EPK50 LA-G07EP Rev 2.0 black screen

Voltage on all coils present?? DC supply consumption with ram/without ram?

[agabrielz]

Re: EPK50 LA-G07EP Rev 2.0 black screen

I have the same problem, same motherboard... 0v on PLG1 which I believe is the GPU voltage. I have schematics mobo 1.0 but it doesn't have this PLG1 and PUG1. PUG1 is a smd component marked - 2 ON - Does anyone have any idea what the PUG1 component code is? All other voltages and signals on the EC seem to be correct... Sorry for my bad English, I'm from Brazil! Hugs to all!

[mon2]

Re: EPK50 LA-G07EP Rev 2.0 black screen

Post a clear picture of the 'PUG1' component.

[agabrielz]

Re: EPK50 LA-G07EP Rev 2.0 black screen

Thanks for reply! https://drive.google.com/file/d/1Zwz...ew?usp=sharing https://www.badcaps.net/forum/images/smilies/cheers.gif

[mcplslg123]

Re: EPK50 LA-G07EP Rev 2.0 black screen

Very likely PLG1 is for GFXCore. It can be measured with scope only. With DMM, there will be slight deflection in voltage reading when it starts posting and not all dmm can catch that.