Badcaps Forums

Badcaps Forums (https://www.badcaps.net/forum/index.php)
-   Schematic Requests ONLY! (https://www.badcaps.net/forum/forumdisplay.php?f=41)
-   -   Need Schematic Lenovo Yoga 720-13IKB LA-E551P REV 2.0 (https://www.badcaps.net/forum/showthread.php?t=75359)

gmorb 08-07-2018 12:40 AM

Lenovo Yoga 720-13IKB schematic and boardview?
 
Looking to fix a Lenovo Yoga 720-13IKB which turns on but wont post.

gmorb 08-13-2018 01:26 PM

Re: Lenovo Yoga 720-13IKB schematic and boardview?
 
Bump

northpoint 03-08-2019 08:30 AM

Need Schematic Lenovo Yoga 720-13IKB LA-E551P REV 2.0
 
I have a short measured from a coil and some surrounding caps. So far I am ASSUMING its a 5v circuit.

I have battery charge light.
I have battery and power light.
Battery charges to full (8v) no problem.
Power button responds with power light coming on.

No power up from board.

What is crazy is I cannot locate the 19v rail in this thing. I know its there or I would not have the other rails. I do have a short on a circuit that I assume is a 5v rail. Short to ground along with surrounding caps.

polytek 03-09-2019 04:13 AM

Re: Need Schematic Lenovo Yoga 720-13IKB LA-E551P REV 2.0
 
No power problem: power button not light; in your case it's power down, it can be caused by a short in cpu or gpu section; or a bad me region, you can try to flash the bios and ec bios first.
the schematic is unvailablle on the payed forum.

galleria1313 07-31-2020 02:54 PM

Re: Need Schematic Lenovo Yoga 720-13IKB LA-E551P REV 2.0
 
Hi Guys i have similar problem but i dont have schematic to check all rails is they are OK or Short.
Any update or schematic or at least to tell which rail is short on your board.

Thank you !


All times are GMT -6. The time now is 06:39 AM.

Powered by vBulletin ®
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.