T23 no image

[Tom81]

After a long break, the T23 does not display the image every time.
After turning on the laptop, there is usually no image, but the system starts normally and I hear the WinXP sound.
After illuminating the matrix with a flashlight, there is no image at all, so it is not a problem with the inverter.
After connecting an external monitor, the image is displayed normally, and when I switched the image to the T23 monitor, it also displays the image and I can work normally.
There is also a problem with the HDD diode. After turning on the laptop, it lights up continuously and does not go off. Even after removing the HDD and restarting, it remains lit.

[Tom81]

I solved the problem. I replaced the cover together with the LCD matrix, I had a working one from a broken T22. As for the HDD diode, it turned out that the DVD drive has a failure and after replacing it with a working one, the diode works properly and the Laptop works properly.