Need help isolating problem , schematics?
First, I was given this notebook in this condition. There is no visible damage, every thing appears to be in great condition, no signs of abbuse in any way, shape or form.
Second, model is an exact match Q551L, but notebook is 17" screen, 1tb H.D. and 4g Ram.
Ok.... Every time the lid is opened it crashes. No matter what I try. If the lid is left down the unit functions great. Connect a monitor, keyboard, mouse and all is good. Raise the lid to the point of switching to on board screen and CRASH, everything is gone!
Try powering on with the lid open? Starts booting just to the point of graphics appear on the screen and it crashes. Upon inspection of hardware, all seems good. Almost seems as if the amount of power required to light the screen is overloading something. Also in order to boot it up again, I must first pull not only the main battery but the bios battery as well, Reconnect batteries and A/C adapter and it boots right up. Again open the lid just a tiny bit, slowly....keys backlight .....ok ...little more......screen lights up and CRASH !! Lights out !!!! All is gone. Sorry for the lengthy question, any ideas or a response at all would be greatly appreciated. Thank you for your time, and have a beautiful day.
Update (07/10/2018)
Here are some pics of the notebook.
Ist dies eine gute Frage?
4 Kommentare
Have you tried another screen??, or at least disconnect the screen from the motherboard??
von Luis Anniel
Not really clear on how to disconnect it. Don't see a ribbon or anything thing easy to disconnect , and with it being touch screen and all , well...just didn't want to add salt to my wound so to speak. I've searched for a service manual or schematic for it, but have yet to find one of any help. I know there must be more than just 2 little wires going to it. Any suggestions as to which it might be?
von Cody Bess
The cable you need to disconnect is the one on top right of the first photo, it goes out up, so do it carefully. Then try powering up your laptop with the lid opened, and when your doing that make sure that nothing is touching the cable you disconnect.
von Luis Anniel
My first thought when I received this laptop was that there was a short somewhere at the hinge point. But if the cables are disconnected it could not be in the cables. I will check again around the motherboard. Nothing is loose . Could it be in the magnetic switch that signals to the CPU that the screen has been opened? And if so, how could I go about checking that. I still have not found a schematic for this unit, have not tried to find one recently.
von Cody Bess