hello to everybody i need help. It is a laptop screen from the title and i dont usually fix them (only laptop and desktop motherboards) but i decided this time i will try and i need your help.
The laptop had shorted 19v main line that goes directly to this lcd with blown fuse on the motheroboard. I believe that somebody tried to check something with battery plugged and now we have what we have. On the laptop motherboard i replaced the fuse and laptop is now working but this screen is a problem.
In the attachment i am sending you what led board looks like in two parts. I marked with...

maybe i am not seeing good but on the first picture that gpu ram seems blown? also right of that ram i can see mosfet also burned? But maybe its just bad picture...but it is cleary someone worked on that area because there is discoloration and you can see cooper in that area.

So, i have a HP LAPTOP that needs central pin of the specific voltage to be recognized by ite chip as original and correct wattage. My laptop needs around 19v volt and 7 a charger (135 W) and i attached from the schematic Adapter select for EC. The thing is i have only 200 w HP adapter. When i connect it the power led is not showing any light and output on AD_ID 0,56 V. According to the schematic if i replace resistor R5115 17,8k with 100 k resistor, will my laptop work? is that only thing i have to do to be able to power it on with my higher watt adapter?
thx
Schematic:
[UR...

It could be gpu or something else.. First check if it is gpu.... when laptop is stuck at the logo try caps lock on/off...if lights turns on/off then your laptop is ok but gpu is dead. If you can not turn it on/off then something else is wrong and it will be very difficult to find, because when loading windows the windows will stuck for many reasons, maybe not working memory, try checking memory connectors on the board, semi dead pch, cpu, or any of the chip on the board...very hard to find.

Here it is, you should have 19 v on both side, and that fuse has to be shorted (between pins 0 ohms)

[ATTACH=JSON]{"alt":"Click image for larger version Name:\tSnimka-zaslona-2024-04-29-134530.png Views:\t0 Size:\t398.5 KB ID:\t3262187","data-align":"none","data-attachmentid":"3262187","data-size":"custom","height":"659","width":"1479"}[/ATTACH]...

[url=https://ibb.co/rH6G40r][/url]

Here it is, on both side you should have 19v and that fuse had to be shorted (resistance 0 ohm)[url=https://ibb.co/rH6G40r][/url]

Here it is, on both side you should have 19v and that fuse had to be shorted (resistance 0 ohm)

ok, thx and what about that mosfet?

First, i dont work on monitors only on laptops and that also for a hobby. So, i received this monitor in the title and it was completely dead, and power supply when used was going off to a power protection. I found that one of the voltage regulators for backlight GS9238 is dead, so i replaced it and monitor is working fine now. But...on the main motherboard first thing i tested was a main power rail and after power jack there is one mosfet Nikos PD537BA. The thing is when i tested all pins of that mosfet are shorted in between. Now when i plug the adapter the monitor just goes on. I dont think...

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Looping is fine if you removed bios battery, the system is trying to read the bios and adjust some seetings, and that probably means that cpu is ok also. I dont know if this model has integrated gpu. Try this, after laptop makes several boots try pressing caps lock key on keyboard...if you see light goes on and off then your cpu is fine and you have a problem on gpu area.

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i dont like semi working laptops because it is very hard to find a fault.
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Sorry, here it is...
[url=https://ibb.co/gw311CF][/url]Re: Asus g752vsk clean ME


Sorry, here it is...
[url=https://ibb.co/gw311CF][/url]...

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Please CLEAN ME on this bios. Its from asus g752vsk i7-7 gen. thx...

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I was looking on ebay and Ali and they are very expensive but i found that dell precision 7530.7540.... laptops have maybe the same connector but i am not sure...So anyone tried this replacement before?

First link is to a connector original for alienware and second link is from dell precision laptops.

[url]https://www.ebay.com/itm/155652801940?hash=item243da14594:g:BXoAAOSwVY9kp9~K&amdata=enc%3AAQAIAAAA8Edx0JPhZbnPYfBfuHrFyGX2wpqfFadBPknXMEQxJqSWrAwYniDRD7u9aHnmb%2F72FgcW214Al2yYd3wegT0j4Y7FJVsf31LMkn9Z33N4RD6sLLpapSLqZyanaRmYoQ7HX3JWR34lNK8qlaCc5J7yTHfyID302caicX2XaxkwJ4wpoja4zimq%2B5czgVO4018OTFoYmD%2B4X%2ByCt12z%2BC8BM2d0OA%2F8WrbwROqYWp8IY%2FyUopIb320MoqqmbU073khubQcqdF6HKFuy4dzCXRi1k8mhT4C1naN%2Bn0RndMbKX7cCjRYQDOKApitI8FycczLWXw%3D%3D%7Ctkp%3ABFBM1OCvo8Ji[/url]...

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I dont know why you played with BQ24735RGRR chip and power main mosfets...because according to measurements from your first picture the BQ chip and mosfets are working fine and you have 19.7 volts on +AC_BAT_SYS main power rail. So, your problem, why motherboard is not turning on is somewhere else.
And now, because you have lights, ite chip is probably fine. Check pch chip and every coil on the board...if there is no short, maybe its bios issue. And please keep in mind that short on cpu and gpu coils are only if resistance is lower...