Lenovo backlight fuse A 0 ohm resistor may work but is acting like a poor quality fuse and will not be able to guarantee the 3A Jan 26, 2022 · Yoga S740-14IIL GS452/GS552/GS752 NM-C781 Rev 1. But the lcd screen work and a second screen with HDMI work as well. I'm trying to figure out where this blown fuse is on the main board. My Laptop Lenovo IdeaPad 3 15ITL6 does not give light on the screen. 21 votes, 12 comments. The problem is, I do not know how to identify the correct fuse. Part is less than $1 usd in single piece purchase. Oct 9, 2022 · Hi all. Locating Backlight fuse, display backlight not working anymore. what else should I check? Update (05/07/23) I may get back to this repair later; friend is currently using the laptop with an external hdmi display since the backlight is the only known issue after water damage. patreon. Dec 21, 2023 · Lenovo laptop backlight repair, #laptopbacklightrepair, #computerrepair , #backlightrepair, #blackscreen,@certifiedlaptoprepair5313 Welcome to Lenovo and Motorola community. Jan 25, 2022 · After changing the keyboard, the LCD backlight stopped working. Mar 5, 2019 · Hi @Matt Delahoussaye. For both you need fuse F2 (3A/32V/Fast, type ERBRD3R00X) near the LCD connector. Nov 9, 2019 · T430 display backlight fuse. I'm thinking of changing it, but I can't find it. Nov 12, 2018 · Could some help me identify the location of fuse F3 and F7? the layout of the text on the PCB isn't helping. com Jun 29, 2024 · F = fuse. After ruling out bad RAM or a bad SSD, I found that it was actually booting into Windows but that the LCD backlight wasn't working. I'd expect that fuse in T460 is located in exact same spot since both platforms are pretty similar. Feb 12, 2025 · Hello Vinafix community. I’m trying to find the fuse in order to test if it’s my LED which doesn’t work or the fuse which is blown… Hello Vinafix community. Nov 2, 2021 · Hello Vinafix community. Disassembly instructions T570 and P51s Hardware Maintenance Manual Join this channel to get access to perks:https://www. 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. Jun 11, 2023 · In this video I stir controversy by repairing the backlight on a Lenovo Ideapad Slim 3 using the wrong part. Sure enough, when testing with an ohmmeter the fuse showed to be open. I haven't checked, but both my original screen and the new replacement screen (both IPS) show the Lenovo logo on bootup, but the screen is mostly dark. Lenovo ThinkPad T14s Gen 1 That is most likely a blown LCD backlight fuse on the motherboard. 0 boardview Lenovo Ideapad 3 14iml05 - NM-C781 REV. com/Patreon support: https://www. Otherwise you may be looking at a dead LCD screen. It didn't stay on for long. No backlight at all, external monitor port works fine. Owner of this laptop replaced LCD screen without removal of internal battery. > Laptops > 5 Series Laptop (ideapad) > ideapad 5-15IIL05 Laptop Parts It may be the fuse, but from the more detailed explanation it may not be as well. I responded to your original request for voltage measurements on PU601 in another thread for "Lenovo C740-15iml". Im not sure how to locate and identify the fuse and would appreciate any help. I tested with a multimeter and found that F8 is the source of trouble. The machine is a W520, I've had it for a while (years), and the symptom is that everything appears to work right, except the LCD backlight doesn't turn on. Does anyone have the Rev 2. Don't work on the computer without doing the above as that risks burning out the backlight fuse or worst, killing the motherboard. If there is no tone beep, the fuse will be OPEN and the backlight voltage will not travel to the display. To do that, connect LCD cable to the motherboard and measure resistance between ground and both F1 pads. Sep 12, 2023 · After connecting the 30-pin cable, the display works, but unfortunately, there’s no backlight on the display. I have removed the board and searched all over but can not seem to locate the fuse. (Works with an external monitor) When I reconnected the display, I realized that the display is working, but has no backlight. - Lenovo Legion Y540-17IRH Aug 4, 2018 · So I blew out my backlight fuse when upgrading to FHD on my T430s. Accessories (10) The Lenovo ThinkPad X Series was manufactured by IBM until 2006. 6 ? . being retired I have time to do long searches and dig in IBM/Lenovo archive and the service/serial/ number also helpful I have an X1 carbon 6th generation laptop with a broken LCD panel. i need to know how to locate the backlight fuse on the motherboard. I managed to get the display working again by shorting the fuse with a bit of wire tape on it. com/electronicsrepairschool Welcome to Lenovo and Motorola community. Our Company Oct 18, 2019 · When the backlight wasn't working, the screen seemed to work all day (unless I didn't notice it go off). Ebay store: https://www. Can you take a look at those and give me your opinion whether the chip has to be replaced or perhaps I need to take other measurements. So from what I have read on forums this points to a blown backlight fuse. 5 amp fuse (marked with an "F" on the fuse. It was previously moistened but the mother was already cleaned and perhaps that caused a short and the backlight fuse burned. T430-T490, T530-T590 Series. 3 posts • Page 1 of 1. 1 post • Page 1 of 1. (click on Commodity > Cables Internal (6) and scroll down to find the LCD cable part number). Under any circumstances you are not supposed to be touching LCD cable with the board receiving power from the charger or battery. I'm looking for the backlight fuse because my Lenovo 3 15ITL6 DM-D471 Rev. Quote #1 Post by Nostos92 » Wed Feb 03, 2021 2:55 pm Post-Classic Lenovo Hardware; ↳ ThinkPad T430-T495 / T530-T590 Series; The screen and cable are self explanatory. pdf vinafix. when i shine on the display i recognize very dark desktop when laptop is running, so it has Jun 1, 2021 · This ThinkPad has two batteries. I checked both screens I own, and you can faintly see the thinkpad logo on both, but no backlight, so I know I need to fix the fuse. In 2007, Lenovo . 0 Lenovo ThinkPad T580 Disassembly and LCD Backlight Fuse Repair. co. Its size varies but is either 0402/1005 or (most likely) 0603/1608 (imperial/metric). I suspect the issue might be related to the backlight fuse, but I’m unsure of its location. Measure fuses with a multimeter, set for Continuity. Hope it will help my fell Aug 10, 2023 · Quick video on how to fix no backlight on Lenovo IdeaPad 5 15ALC05. Parts and equipment I use:0402 2A Fuse https: Jul 2, 2019 · As far as I remember the backlight fuse in T450 had a symbol of F7 and it was located nearby eDP connector on the reverse side of motherboard. I question my sanity as I struggle with 2 of the One of the common issues with laptop display is backlight complaints. Jul 13, 2020 · Re: Lenovo Thinkad L540 - Backlight Fuse, dim display ? Is the original panels part number B156XTN02. PC Data Center About Lenovo. If you have a Lenovo laptop with a Dim Backlight, and the desktop is faint but visible, this usually means that the main components of the motherboard are working fine. etc every thing . If its the motherboard its easily fixable: close to the screen connector on the motherboard there is a fuse. Location near the LCD-connector on the motherboard. i have One of these Lenovo thinkpad E14 laptops that come with a ryzen cpu, but memtest gives thousands of errors. Lenovo Motherboard schematic/backlight fuse location. com/channel/UCi9k5jW0NCc2ysNCSdGbQGQ/joinYou can find the parts used in this video on:eBay: http Sep 12, 2020 · Hello everyone. I have heard some ppl change the fuse on macbooks while others just bridge the fuse to make it May 7, 2023 · Assumed the fuse FG3301 for the backlight was blown but it's OK. So I bought a FHD kit for my T430s and somehow accidentaly blew the backlight fuse. youtube. This is for all of the three people out there looking desperately for the location of the backlight fuse on the 7th Gen X1 Carbons. I have a Lenovo IdeaPad3 14IML05, i made the mistake of replacing the display screen without first disconnecting the battery. Dec 13, 2021 · Lenovo T440 Dim display Solution here #msiinfotech Where is the backlight fuse? Lenovo Thinkpad X380 Yoga. The keyboard works just fine including the other lights on it, but the backlight doesn't. I do have quite a few Lenovo panel layouts but not your one . Remove whatever mess you made around the F7 fuse. Newer lenovo boards fuse are very tiny-You can go for a smilar rating fuse although in bigger size and solder one pad of the new fuse to pcb one side and connect a jumper wire from other pad to fuse. Hier ist die backlight Sicherung kaputt. If it blew while the machine was running, it's probably a motherboard failure either way. 65K subscribers in the Lenovo community. Now the backlight is working again, but i lose the screen. It was previously moistened but the mother was already cleaned and perhaps Aug 6, 2018 · Thinkpad T440P Backlight Fuse. Dec 14, 2020 · Hardware Maintenance Manual- ThinkPad L14 Gen 2, L15 Gen 2 Jun 13, 2024 · If you see a picture then there are a few possibilities; it could be a fuse on the motherboard, or on older models that use florescent bulbs the driver circuit may have failed, or you could simply have a flex cable or wire next to the hinge that's broken over time. SHOP SUPPORT. The motherboard part number is 5B20S42804. Backlight fuse on the MB is well gone. Where is the backlight fuse? Lenovo Thinkpad X380 Yoga. das Gerät geht an, mit einer Taschenlampe sieht man auch wie etwas darstellt, allerdings ohne hintergrundbeleuchtung. From what I've read, it looks like I blew some fuse on the motherboard and I'll have to either short the fuse and be careful or buy a new one. suspect fuse is blown. 15" versatile and affordable laptop. Hi all. ee/tecnicomputecmaracayTodas Nuestras Redes y Contactos Sep 12, 2023 · Re: Lenovo V14-ADA - No Backlight I've just removed the fuse (F2) and shorted the connection out with a tiny bit of solder I reduced my bench power supply to just a few milliamps and when connecting the power my linear bench power supply immediately shut the amps down so there is definitely something still wrong with the motherboard causing this fault. 90GHZ NVidia DGPU. 1 Answer Welcome to Lenovo and Motorola community. 6" screen on it. The motherboard model is Lenovo BDPLANAR MB L 81WD WINI51035G4_UMA_4G, Part No: 5B21B37508. Message. Nov 27, 2020 · We replaced a broken screen with a new screen. A poor connection somewhere. (not F1) Piggyback solder the new one on top of the old one. I didn't disconnect the battery when I removed and reattached the 30 pin display cable so my first guess would be, that I have blown the backlight fuse. Because of this it's imposible to install Windows as install fails. The cold solder joint theory seems like a good one. Before disassembling the screen, disable the battery in BIOS and disconnect it from the motherboard for safety. Backlight fuse location on the motherboard. I assume something shorted when I tried to replace screen and may possibly have blown the fuse you mentioned in original post. 2 BoardView. The backlight fuse blew up so i replaced it. If any measurement is near zero - you have to fix a short before proceeding with fuse replacement. Give "Electronic Repair School" on YouTube a watch. When this Lenovo ThinkPad T460s Ultrabook laptop The laptop is an Ideapad 530s-14ikb and the fuse for the backlight seems to have been blown while replacing the screen without removing the battery first, resulting in a dim screen. 1 and suddenly the display backlight doesn’t work. 0 schematic? This article shows you solutions to resolve issue when keyboard backlight cannot be turned on. I really appreciate it. ESP32 is a series of low cost, low power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. I knew it was a fuse, but your answer helped me to locate fuse F2. An easy fix to repair Lenovo ideaPad S145 S145-15iWL with no backlight, the easy fix is to bypass the tiny fuse marked F3301, follow the simple instructions Help locating t420 backlight fuse on motherboard and general information on t420 motherboard for repairs Question / Problem Hi, I need help locating the fuse of t420's backlight of the lcd panel on the motherboard. Model is ERBRD3R00X or FUSE-3A32V-17-GP or 0438003. Parts . Lenovo ThinkPad X380 Yoga. How nice of Lenovo to tell me which part I need to buy. tvw Schematics Lenovo IdeaPad-3-15IML05 LCFC GS452 GS552 GS752 NM-C781. ebay. February 19, 2016 IBM-LENOVO IDEAPAD B50-45 SCREEN REPLACEMENT Oct 18, 2013 · Re: lenovo t430 no backlight Thanks for getting back to me. My HDMI port is not working. Liquid damaged created a short on the lcd panel causing the lcd cable and fuse to go bad. com/usr/ers_usaWebSite: https://sorinelectronics. Post-Classic Lenovo Hardware; Jul 26, 2018 · Lenovo Thinkad L540 - Backlight Fuse, dim display ? L430/L530 and later Series. Mar 23, 2018 · I am still looking for NM-D471 Rev. 2 Answers . This resulted i On T530 the backlight fuse is F3, an SMD/surface mount fuse, 32V, 3A, fast. I don’t know how to go about replacing the said fuse without knowing what to order online. Check the fuse for Continuity with a multimeter. I have blown the backlight fuse of my ThinkPad x1 Tablet Gen 3. Newer models almost certainly use the same fuse. I couldn't find any information about the location of this fuse for the longest time, and I finally found it on my own and thought it beneficial to share. I have a chuwi lapbook pro 14. Next, meter in DC volts mode of 30v or higher (to safely measure the backlight voltage). Now the the display works but barely can be seen due to the backlight's fuse having been damaged. Use a Multimeter to check them for Continuation. Lenovo IdeaPad S145-15 Repair . If you have a Lenovo IdeaPad Yoga 11s the part number for the LCD cable is 90202833 found from the parts list for the laptop. Sadly Lenovo built it with ram soldered to motherboard + 1 empty sodimm slot for ram expansion. Put up a photo of the complete board and all the number on the panel. Apr 18, 2023 · The laptop model is Lenovo ideapad 3-14IIL05 Laptop - Type 81WD. During fai Apr 11, 2023 · Need the motherboard location for the backlight fuse for a Lenovo ET480 NM-B501 for ThinkPad T480 motherboard i7-8650U @1. You take out the external one, think its powered off, change the LCD and then the always-hot backlight rail gets shorted to Sep 12, 2022 · Ask a friend to piggy-back solder a new fuse on top of the old fuse(s). If the website doesn't work properly without JavaScript enabled. 1 Answer . Replaced cracked screen, new screen has correct images (viewed with bright light from behind). com/mail-in/ 🟢 Sponsorship Inquiry http Feb 24, 2024 · In this video I was trying to fix no backlight issue on Lenovo ThinkPad E15 after the customer stated it stopped working after memory replacement. Due to that motherboard has to be removed to replace it. When i plug external monitor, it works ok. I blew the backlight fuse on the motherboard tinkering with the display without disabling the internal battery. Thought the display wasn't working but after shining a flashlight on it on it in a dark room I can see the Lenovo logo as it boots up. Make sure to first DISconnect/remove both main batteries and charger! Oct 11, 2024 · 🎮 In this video, I’ll show you how to repair a Lenovo IdeaPad 5 with a Dim Display! 💬 Got Questions? Feel free to ask questions or share your upgrade expe Apr 26, 2020 · Hello everyone, I’m trying to find the backlight fuse on my motherboard. Since I installed hackintosh and can't use the internal wifi adapter anyway, I can remove the whole top lid cleanly including with the WLAN and WWAN antennaes. That being said, if it is absolutely necessary that, in the short term (not a long term solution) the backlight works, it's not awfully hard to short the fuse. In this informative video, we will guide you through the process of troubleshooting and fixing the backlight issue on your Lenovo Ideapad 3. 0. 2. If you are exper Feb 14, 2019 · And it worked! But when I put back the keyboard from the T430s, the keyboard backlight no longer worked. uk/usr/sorinelectronicsUS Ebay store: https://www. Post Reply. I suspect it's the backlight fuse. The ESP32 series employs either a Tensilica Xtensa LX6, Xtensa LX7 or a RiscV processor, and both dual-core and single-core variations are available. Welcome to Lenovo and Motorola community. Print view; Search Advanced search. Jan 2, 2021 · I'm looking for a schematic for the motherboard in my Lenovo 81UT003WUS. They are both 3A/32V/Fast with P/N ERBRD3R00X. The screen works well, there is just no display backlight (i can see the displayed images if i hold my lamp behind the screen while booting up. Fuses have a copper filament – similar to a lightbulb. I think whoever changer the keyboard didn’t disconnect the battery and popped the fuse in the process. I have a T42 that has a blown fuse on the motherboard. In this video I am showing the location of the shot backlight fuse on Lenovo ideapad 5 laptop that had not backlight on the screen. Ive had this happen to my T440s when i wanted to test a 15. As further proof, the boardview shows that this fuse is connected to the four VBL20 pins on the LCD connector, which I assume are what carry power to the LCD backlight. How much does it cost usually to fix this logicboard. In some rare cases could be a faulty LCD cable. I bypassed the fuse while waiting to buy a new one fuse and properly solder it with hot air and with a microscope. ). Mar 16, 2015 · A typical backlight fuse = 32v @ 3amps. Replaced lvds cable snd fuse F5501 on the bottom of the board near Jul 2, 2016 · Before you replace the fuse, make sure backlight power rail is not shorted to ground. Sep 30, 2024 · 2) ask if they can supply the part which is a 3A rated fuse at 32v or higher. Now there’s no backlight. Does anyone happen to have a picture of where it is? Mar 20, 2020 · Indeed, the silkscreened text near the fuse reads "F2602: 3A/32V", and the fuse itself does bear a "P". com/Patreon suppor Nov 10, 2022 · Hey all, I have an Ideapad 3 15ITL6 in house and theres no backlight, I changed the LCD hopeing but same outcome. I still get a dim image of the Lenovo logo at start up before I removed the old display and lcd cable. more. If the new LCD cable and New Display don’t end up working I’ve been trying to find out where the backlight fuse is. Yes i found the NM-D031 printed at motherboard. Measure the voltage to ground on each fuse, on each side of the fuse. Aug 30, 2009 · First post and looking for a little help. uk/usr/sorinelectronicsWebSite: https://sorinelectronics. WRA, marked with a letter P I mistakenly forgot to disable the battery from bios or disconnect it before changing the display. 3) the original fuse blew for a reason. I’ve tested continuity in some components of the board, but I didn’t find - Lenovo Thinkpad X380 Yoga This video shows how to fix Lenovo laptops with no backlight after screen replacement. Long story short i am trying to find the backlight fuse on lenovo x1 carbon 3rd gen laptop, I believe its either fuse F3 or F7. This will get the backlight running, Aug 28, 2021 · The circuit diagrams can be found for Lenovo try different search pattens . Lenovo Like y Suscribete para Que Nuestro Canal Crezca y Ofrecer Mas ContenidoVisítanos en:👉https://linktr. Just enough to tease me into thinking all was well. I have no soldering experience but I know this is a blown backlight fuse and not the LCD cable or screen, those are both fine. There are two (tiny) backlight fuses, marked F3 and F7 (near the LCD connector on the motherboard). Hey guys new here I have a Lenovo legion 5 5600H and rtx3060 but wasn't impressed with the basic 250nit panel So I tried to upgrade this to a 500nit one but forgot to disconnect the battery so I've blown the backlight fuse (can still see the display if I hold a torch to it) Oct 18, 2022 · Re: Lenovo Ideapad 5 15ITL05 without back ligth, Help Thank you. Worth a look ;-) "There is generally a . Aug 7, 2023 · ⭕ Visit our ecommerce shop and buy all your tools at https://northridgefix. If you look in the photo above, you can see the arrow pointing at the fuse on a Lenovo laptop motherboard. Ive read you can just drop a blob of solder on the fuse, and itll work (but now with a danger of actually blowing the LCD backlight - better than It's a guess so far. Ein weiteres ersatzdisplay brachte auch keine Besserung Jun 18, 2015 · Hi guys, is here someone, who can advise me where exactly is a fuse on motherboard responsible for display backlight? I got one Lenovo T420 with black screen. 0 because Rev. What are both panels part numbers, check datasheets of both and see if theres any difference between specs,such as lanes, and pinouts. Usually it's only the F3 that 'blows'. I’m looking to replace the backlight fuse on my l14 gen 2 work laptop. Jul 5, 2019 · Found the following info from this link with regard to a X220 which has a separate backlight cable and an LCD cable and not just the one LCD cable where the backlight power is incorporated into the one cable but perhaps it may be nearly the same. From what I was told this is an indication that the backlight fuse is Dec 28, 2017 · I'm working on a No Backlight board today, so here's a two parter explaining how the DC-DC Boost Converter that drives the backlight works, followed with how Feb 8, 2020 · Don't have the schematics, but on all X230/X240/X250 its a fuse near the LCD-connector on the motherboard. 0 was shared with me in this forum but the circuits are not called the same as Rev. 0 Score. Each fuse must tone beep which means the fuse is NOT blown. (I can still read some text on the LCD if the light in my room hits the screen at an angle). The person who last tried to repair it unfortunately blew the fuse to the LCD panel back light during the repair process. You could try replacing or bridging the fuse, but given how hard it was for me on a much older much bigger machine, I would recommend replacing the motherboard. Author. If you can find a soldering expert then it is easily salvageable but those are hard to come by. UK Ebay store: https://www. Therefore it should be replaced with another fuse and not be bypassed. I also am not sure where this is located on the motherboard. In this case the problem was caused by the faulty SMD fuse. I soldered a tiny bit of solder so that it would bridge the connection, and the backlight now works Nov 26, 2020 · Hallo liebe Gemeinde, ich habe leider ein Problem mit meinem ThinkPad t440s. I replaced it with a good S Jun 18, 2015 · I have a T420 that the backlight recently went out, and swapping in another screen didn't fix the issue. Feb 17, 2023 · Screen backlight not working, ThinkPad t430 T460 laptop repair t470 x240 x250 Welcome to Lenovo and Motorola community. I accidentally blew the fuse trying to replace the screen, now it is only working with an external monitor. Post-Classic Lenovo Hardware; ↳ ThinkPad T430-T495 / T530-T590 Series; Feb 14, 2023 · Re: Lenovo nm-d471 fv1 fuse blown Putting a jumper for fuse is not recommended but will work if there is no other problem. Power up. 1. com⭕ Need a repair? http://northridgefix. Ok thank for your link i will try to find it thanks. 0 does not give light on the screen. Have a no backlight situation, pretty sure it's the fuse but can't find it to check. I haven't managed to get the schematic to know where to look and verify the backlight fuse. HELP!! :) Occurred after screen replacement, which I believe was faulty. Please enable it to continue. Replacing it will restore backlight. Has both AMD and Intel models. The smd fuse will be a bitch to replace so in some respects it might be best to get a full motherboard replacement. rhr lslai hpya pdwmht kbzo ukuv zxcq xjufm bdlx dzzdl weww weebt rslgmuky ynbl vkwveby