Sudden black screen?

The screen of my Acer Aspire V Nitro laptop has not come on for a few weeks. It happened overnight. I used the laptop normally in the evening and in the morning the monitor would no longer turn on. When I connect a monitor via the HDMI output, it does not display anything. I have already disassembled the laptop, removed the button cell from the motherboard, disconnected the battery and pressed the power button for 60 seconds to perform a hard reset. That didn't help. After the laptop is switched on you can hear the hard drive booting up, then nothing happens for a moment and then the fans and the hard drive go back on. The laptop remains in this state. When I connect a keyboard via USB, the CAPS Lock light does not work. The laptop is already 5 years old and for 3 years the monitor has gone out if you accidentally hit it, a slight bump was enough. The problem was solved by briefly activating hibernation.

I hope you can help me. Thank you in advance.

One or the other chip needs a reballing. In other words, throw it in the trash.

Sounds like a short circuit. Times peeled off the screen and tried an external monitor?

Are the connections on the outside all OK? Or can it be that the short circuit comes from there?

What is the right green rectangle?

look if it is the backloght of the display. So whether the screen is on but is simply dark. Funny only that then the capslpck diode does not work

If the screen were simply defective, then it should get a picture on another monitor via HDMI. But he doesn't get it.

The way you describe the error, the device has long been sensitive to knocking when it comes to monitors. This usually comes from the connection cable or solder joints. Each time it is switched on again, a slightly higher current usually flows and since the damaged area has been on the brink for a long time, it has now even broken. If you find an accomplished electronics technician, he can look for broken solder joints and these can be repaired with a little experience and a fine device. If it is the interconnection cable, you can find out by moving it moderately. I have been able to fix many such errors with laptops; therefore there's definitely a chance if you search accordingly and of course if you are a bit lucky:-)

Perhaps a Repair Cafe can also help you when they take place again.

So the screen is not "black"

What do you mean by chip and what is recalling?

Does your laptop have one or two ram modules? If two, then remove one at a time and see if it starts.

If he only has one, then see if you can somehow get another Ram module.

If you've already tested this, then it will probably result in a complete defect. Also, since the capslock key on another keyboard can't be pressed, i.e. That the lamp does not turn on, I can conclude that there's a more profound defect that has nothing to do with the monitor.

This is the hard drive

Are you sure about the monitor? Even if the monitor were defective, it should still be possible to activate the capslock key on a keyboard, i.e. The lamp should light up.

Since this does not happen, the laptop seems to hang and only if the display is defective does the device not just hang.

Does it beep?

Yes, i'm doing an error analysis right now, if you don't bother

No

Remote diagnosis of someone who asks what the green rectangle is. Have fun.

Unfortunately this did not work. The connections are all fine.

That is correct, but you will also find the hint in the question that the device has switched off the graphics for three years when it is moved. And if a movement / shock / force on such a device has these effects, there's a loose contact.

The caps light on the external keyboard does not work, the laptop does not have one

I have to touch it so that I know what it is. We're now 3 steps further

The RAM is unfortunately soldered. How would you go about repairing a complete defect?

So even if all peripheral devices are disconnected, there's a short circuit?

Then there's a short circuit on the mainboard.

It depends on the component that got it here.
If it is just the display (which I don't suspect) then you swap it. Depending on the price, this can still be worthwhile.

But if the board is defective, then you probably need a new board. In some cases, however, these are not exactly cheap, as components such as the processor and graphics card are soldered onto them. You then have to consider whether a repair is still worthwhile, in my opinion it is then completely defective / for the bin.

And you are 100% sure that the ram is also soldered to the board? Great…

Edit: I do not suspect that it is because of that, but have you separated the hard drive and the M.2 and looked if you can see the start screen of the BIOS?

They can't do that because loose contacts do not occur in ICs. Let an electronics technician look over it and he'll see more. Furthermore, it can also be that an SMD fuse has triggered due to the WaKo still present on the board and that it must first be replaced. But just finding these components requires a lot of experience with these types of construction. The components are not jokingly called "bird food" for nothing:-)

The loose contact is 100% safe with head sensitivity…

Okay thank you very much.

Just read the chat history before you give an answer! The device is definitely repairable… If you have the necessary experience and knowledge of the matter.

I just tried that (bios is not displayed)

Yes, I have changed my comment

But you're not sad now, are you

No, I only gave you a little time to go through another 3 steps with the questioner. But you obviously didn't use this time.