Solved! Lenovo yoga 700 won't turn on. Light is on the power button but the screen is black

Are you sure it isn't actually on, and just the screen isn't on? Are there any sounds coming from inside it. Hard drive, fan, etc.? If there are, then it may be the display and not the power.

Try this...

1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.

NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.

If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.
 
Are you sure it isn't actually on, and just the screen isn't on? Are there any sounds coming from inside it. Hard drive, fan, etc.? If there are, then it may be the display and not the power.

Try this...

1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.

NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.

If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.
 
Aug 27, 2014
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4,610
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Remove CMOS battery and short the terminals to Clear the CMOS. Then remove the ram and put in one at a time and swap them to see if one is bad.

Let us know if you get any results or if resolved.
thanks
Also note that (not this model in particular) I had one laptop that had a ground wire that had broken off of the ground on the lcd edge and the lcd would not light up until this wire was replaced to ground out the metal along the bottom of the lcd panel itself.
 

Ditard

Commendable
Jan 14, 2017
3
0
1,510
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I actually just turned it off and waited a few minutes. Then I hit the on button ten times quickly. I the pressed the on button and it turned on
 
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