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Old 08-07-2018, 12:40 AM   #1
gmorb
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Default Lenovo Yoga 720-13IKB schematic and boardview?

Looking to fix a Lenovo Yoga 720-13IKB which turns on but wont post.
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Old 08-13-2018, 01:26 PM   #2
gmorb
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Default Re: Lenovo Yoga 720-13IKB schematic and boardview?

Bump
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Old 03-08-2019, 08:30 AM   #3
northpoint
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Default 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.
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Old 03-09-2019, 04:13 AM   #4
polytek
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Default 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.

Last edited by polytek; 03-09-2019 at 04:15 AM..
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Old 07-31-2020, 02:54 PM   #5
galleria1313
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Default 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 !
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