I made a video of the whole problem so maybe it will explain it to you best https://youtu.be/iEHrll_xRao
However, I will write the problem here too.
Well, as the title says when I plug the power cable the power button on the display just goes on and off every 2 seconds without showing anything on the display. While it's that way I disconnected the screen cable (picture 1) and then after few seconds the screen goes white, back off again for a second and back white and then stays white (I suppose this means the back light is working fine?). After that I connect the screen cable back again and then the screen shows some lines until I press the screen cable down with my hand on different spots until I find the one which makes the screen show the "check signal cable" window going around, I put some tape to press it down and it stays that way. However, when I connect my laptop to the monitor the screen on monitor goes back to its first state, blank and only the power button flashing blue light every 2 seconds, or sometimes it doesn't go back to the first state but the LG logo shows up on monitor screen then after it the "power saving mode" window and the monitor screen goes off with the power button light orange and stays that way until I press the power button, then it goes off completely and then when I press it again it shows again the lg logo, power saving window and goes orange (as you can see on the video). Now back to the first state with the laptop connected to the monitor. While in that state, blinking power button on monitor every 2 seconds, I again disconnect the screen cable, screen goes white and then again connect it back, then the screen shows some lines again and I tried pressing the cable but all it does is being completely black or the lines show up when released, so no more "check signal cable" what makes sense because it's connected.
So I have no idea what could it be, the vga board of monitor, the screen cable, the long thin board of the screen where the screen cable is connected (excuse me for not knowing the name) or something else?
Thanks
However, I will write the problem here too.
Well, as the title says when I plug the power cable the power button on the display just goes on and off every 2 seconds without showing anything on the display. While it's that way I disconnected the screen cable (picture 1) and then after few seconds the screen goes white, back off again for a second and back white and then stays white (I suppose this means the back light is working fine?). After that I connect the screen cable back again and then the screen shows some lines until I press the screen cable down with my hand on different spots until I find the one which makes the screen show the "check signal cable" window going around, I put some tape to press it down and it stays that way. However, when I connect my laptop to the monitor the screen on monitor goes back to its first state, blank and only the power button flashing blue light every 2 seconds, or sometimes it doesn't go back to the first state but the LG logo shows up on monitor screen then after it the "power saving mode" window and the monitor screen goes off with the power button light orange and stays that way until I press the power button, then it goes off completely and then when I press it again it shows again the lg logo, power saving window and goes orange (as you can see on the video). Now back to the first state with the laptop connected to the monitor. While in that state, blinking power button on monitor every 2 seconds, I again disconnect the screen cable, screen goes white and then again connect it back, then the screen shows some lines again and I tried pressing the cable but all it does is being completely black or the lines show up when released, so no more "check signal cable" what makes sense because it's connected.
So I have no idea what could it be, the vga board of monitor, the screen cable, the long thin board of the screen where the screen cable is connected (excuse me for not knowing the name) or something else?
Thanks
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