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Bought a laptop but the screen did not work so I replaced the screen but the backlight still did not work but the hdmi works fine. Did some research and the backlight fuse seems to be an issue.
Here are the board pics
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Search online for NJJ DA0NJJMBAG0 schematic (examples only if this is the model number of your motherboard) to hopefully find suppliers.
With a lot of the above results of suppliers, they only have the boardview file and/or the BIOS.bin file for the motherboard and not the schematic for the motherboard and you either have to sign up to the website to download it and also with some to pay for as well.
The boardview file might help as it shows the location and designation of all the components on the motherboard, so checking all components designated with an F might work but having the schematic would be better as it would show how the backlight is powered.
With a lot of laptops the backlight power is always supplied to the LCD panel and it is a signal on the backlight enable lead from the motherboard, that determines whether the backlights are on or not and not a case of turning off the power at the motherboard. It is switched off in the LCD panel
If you know the make and model number of the LCD panel, search online for (insert make and model number of LCD panel) datasheet to see if you can find it, as it will have the LVDS/EDP cable pinout information which will show what wires on the cable have the backlight power so you could check if it is there or not.
Hopefully this may help until a better answer is supplied.
Not sure at all but use an Ohmmeter to check if there's continuity from EDP connector pins 38-40 to one side of the component marked in the image below. If there is then that's the backlight fuse F1.
If it is the fuse and it is blown it is a 2.5A/32V 0603 (example only)
If it isn't a fuse then here's a link where you can download a boardview file which may be close - see post #5. You have to join the website to do this though, which I didn't want to do. It will show the designation and the location of all the components on the motherboard. The schematic shows that fuse F1 is used for the backlight power.
(click on image)
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Thanks for helping me
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@justsomede27316 we'll need to see your board. Both sides, since the fuse is on the side facing the keyboard. So yes, you will have to remove the board. Before you do all of this, you do want to check on your eDP (LCD screen) connector pin 38, 39, and 40. You should have anywhere up to 30VDC on those. Careful that you do not shorten out the contacts with your probe. Since you are wanting to change the fuse etc. I am confident you know the routine. If you do have to voltage on your connector you know the issue will be related to the LCD screen
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Can anyone provide me the schematics for asus ruf fx706hf motherboard-DA0NJJBAG0
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NJJ DA0NJJMBAG0 schematic for free for asus tuf fx706hf
crwdns2934271:0crwdnd2934271:0 Looking.. crwdne2934271:0