Lenovo Ideapad 3-15ITL6 NM-D472

[tbgaming]

Hey all, I have an Ideapad 3 15ITL6 in house and theres no backlight, I changed the LCD hopeing but same outcome. Ive run the board around my microscope a few times and cannot seem to find the backlight fuse if anyone knows its location or has a schematic for the NM-D472 REV:2.0

[TurboAnimal]

Re: Lenovo Ideapad 3-15ITL6 NM-D472

Hello. I suffer from the same problem as the partner, tbgaming. My IdeaPad 3 15ITL6 NHS460 HS560 HS760 NM-D471 REV 2.0 does not send light to the screen. I suspect the backlight fuse. I can't locate it. I don't have the schematic. If someone shares the schematic or at least helps me locate where the backlight fuse is, I'll check with the multimeter if it's working or if it's blown. Please someone help.

[Bonzas]

Re: Lenovo Ideapad 3-15ITL6 NM-D472

Hello. I suffer from the same problem as the partner, tbgaming. My IdeaPad 3 15ITL6 NHS460 HS560 HS760 NM-D471 REV 2.0 does not send light to the screen. I suspect the backlight fuse. I can't locate it. I don't have the schematic. If someone shares the schematic or at least helps me locate where the backlight fuse is, I'll check with the multimeter if it's working or if it's blown. Please someone help.

Send clear picture from your board both top and bottom near EDP and DC connector

Here's is fuse backlight

[TurboAnimal]

Re: Lenovo Ideapad 3-15ITL6 NM-D472

Send clear picture from your board both top and bottom near EDP and DC connector

Here's is fuse backlight

First of all, thank you for taking the time to answer. Well, I have taken photos of both sides of the mother: near the lcd connector and behind the lcd connector. Now, and forgive my lack of experience, but how should I measure the circuit that may be damaged and perhaps should be replaced? What I know is measured with the multimeter in V, 20, grounding in some area of the motherboard and on the other side in the circuit, fuse, am I correct or am I ignoring something else? All the help you give me will be useful. On the other hand, I have investigated and seen video where on the one hand, the fuse is replaced or on the other hand a bridge is made. What do you recommend me?

[Bonzas]

Re: Lenovo Ideapad 3-15ITL6 NM-D472

Here's is schematic. If you want learn, try to make sure all voltages regarding on schematic

[TurboAnimal]

Re: Lenovo Ideapad 3-15ITL6 NM-D472

Here's is schematic. If you want learn, try to make sure all voltages regarding on schematic

Thank you very much.

[TurboAnimal]

Re: Lenovo Ideapad 3-15ITL6 NM-D472

Here's is schematic. If you want learn, try to make sure all voltages regarding on schematic

There is a small detail, the document that you have given me for NM-471 is Rev 1.0 and my mother is Rev 2.0. According to a video where I was explained how to find the fuse backlight circuit, according to the schematic I look for "DISPOFF_N" but I can't find the circuit according to the schematic. Maybe it's because the document you gave me is Rev 1.0 and my mother is Rev 2.0, there are changes in the mother and names of the circuits. Do you or someone have the schematic of NM-D471 Rev 2.0?

[AL._.EX]

Re: Lenovo Ideapad 3-15ITL6 NM-D472

According to the diagram, there is a resistor R121 0 Om, which works as a fuse.

[TurboAnimal]

Re: Lenovo Ideapad 3-15ITL6 NM-D472

According to the diagram, there is a resistor R121 0 Om, which works as a fuse.

https://www.badcaps.net/forum/attach...2&d=1675462628
https://www.badcaps.net/forum/attach...1&d=1675462628

Can you tell me which mother model you are talking about and indicate according to the photo? Well, in the mother that I am looking for a solution, there is no resistance with the name R121 or C133. Look at the real photos I uploaded of the plate. That's why I think that to locate the mother I have I need the NM-D471 Rev 2.0 schematic, which by the way I can't find anywhere.

[Alexon2023]

Re: Lenovo Ideapad 3-15ITL6 NM-D472

https://www.badcaps.net/forum/attach...2&d=1675462628
https://www.badcaps.net/forum/attach...1&d=1675462628

Can you tell me which mother model you are talking about and indicate according to the photo? Well, in the mother that I am looking for a solution, there is no resistance with the name R121 or C133. Look at the real photos I uploaded of the plate. That's why I think that to locate the mother I have I need the NM-D471 Rev 2.0 schematic, which by the way I can't find anywhere.

Here's is fuse backlight

[devonoved]

Re: Lenovo Ideapad 3-15ITL6 NM-D472

Thanks Gents. Had this issue recently. ideapad 3-15ITL6 Blown display back light and blown Camera/Mic after replacing a part. Had to bridge the fuses FV1 (Backlight) and FI101 (Camera power) under the Display connector on the mainboard (the fuses were too small to replace for me at least.) up and running with backlight and camera ok again for now.

[InoveInformatica]

Re: Lenovo Ideapad 3-15ITL6 NM-D472

Hey all, I have an Ideapad 3 15ITL6 in house and theres no backlight, I changed the LCD hopeing but same outcome. Ive run the board around my microscope a few times and cannot seem to find the backlight fuse if anyone knows its location or has a schematic for the NM-D472 REV:2.0

It's a white fuse with some black markings underneath the flex on the opposite side of the board.

[sasser]

hi are this issue is solve. i have the same problem. from schematic i got short on CV6 which is brown caps around FV1. al ready replace but still dimmed. im also measure FV1 and i got 20v in 1 side and from site 2 i got 9-11v

[Ander79]

Re: Lenovo Ideapad 3-15ITL6 NM-D472



Here's is fuse backlight

Thank you very much, you just saved my life, a hug from Colombia.

[greypally]

Re: Lenovo Ideapad 3-15ITL6 NM-D472



Send clear picture from your board both top and bottom near EDP and DC connector

Here's is fuse backlight

Awesomesauce!! Thanks a million!!

[wood super]

Thanks for the contributions, they have also saved my life. Greetings from Colombia.

[servet alaçam]

Hello friends. What will be the value of the capacitor? It looks like a short circuit, but it can't be for insurance purposes, right?

[rob.cab]

thanks a lot for the schematics, this monday ill try to repair a no power issue

[jellyroll]

I am sure your method is correct. Thank you.
Should I replace the fuse? Should I replace the capacitor?

If it is a fuse, is this correct? 0R 0805 5%

What specification is correct for the capacitor?

[chakey]

Lenovo ideapad 3 15ITL6, no picture on LCD screen but there is a picture on external HDMI monitor.
Like on the schematic fuse FV1 was blown because capacitor CV6 was shorted. Changed capacitor with 10uF capacitor but I didn't have it in same size so little bigger one, and fuse replaced by wire link.
Everything works fine now.
Thanks.