No Backlight on LED screen

Or am I out of luck, and better off buying a new motherboard?

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Are you sure it's just back light not working? Do you still see picture on the LCD?

 

Yeah, I can see a faint picture, especially when using a flashlight.

 

There is another fuse in lcd controller board. It's worth checking it.

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Do you want me to take a pic of that, or is there a number I should look for?

 

Hi everyone! I have the same problem with my Vaio SVE1111M1EW. I think that the fuse was produced when it crashed on the floor. I try to replace lcd and cable but the backlight didn´t work. Can you help me understanding where is the fuse? thank you so much in advance and I´m sorry for my english.
ps: this is mb´s name "v180 mp mb board"
link to foto
http://www.directupload.net/file/d/3734/mkcje496_jpg.htm

 

There is no number for that fuse. When you remove lcd and controller board cover, you may see it.

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Try F8 on the other side of the underneath lcd connector.

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On my Vaio SVF1521J1EW the fuse is F2 underneath near the video output (it's very obvious so no need for a photo). It's such a pain that the fuse blows so easily but well worth knowing to avoid going to the trouble of buying a new screen and having to send it back (like I did d'oh!).
I'm guessing it's the same on other F-series Viaos but maybe they had motherboard revisions.

 

I try to change F8 fuse but I have the same problem...so the reason isn't this fuse. Any other solutions? thank you

 

Thanks a lot to this thread and specially to ngvuanh, it has been very useful!

I would just like to add that while bridging the fuse with solder is not so dangerous, actually replacing it with a new fuse is not any harder and the fuses are ridiculously cheap.
I bought one in Germany for 75 euro-cents (about 1usd).

First make sure that the fuse is actually blown.
Then just ask for a 2 Ampere SMD fuse, of size 1206 at your local electronic components shop.
You don't have to remove the burnt fuse, just put the new one on top and solder it. You will need some tweezers and magnifying glass. But the latter you need anyway, even just to bridge it.

 

Hi all, having the same issue (rushing and i think I left it plugged in). My model is VAIO F22 VPCF22KFX/B 16.4". Couldn't find any previous posts on the F series.

 

Hello everybody
I´m having the same backlight problem on my sony vaio SVE1113M1EW.
Going through this problem from last week.
replaced a lcd still no luck.
i found this forum,and started searching for the blown fuse on my vaio´s motherboard.
i found 4 F categorized fuses F1 F3 F8 F4.
all seems to be Okay and non of these above fuses are marked with letter N,instead its written P01,P03.
so i want to know what could be the possible solution in my case.
I´m having trouble in uploading the picture.
tried more than 10 times but its not working.

 

AlexVaio
i have the same problem too.
THe same model.
i bridged F8 but no luck.
Did you found any solution for that?

 

There are two types of laptop LCD displays: older versions that use a separate fluorescent backlight bulb with an inverter, and newer models that use a true LED backlight integral with the display screen.
Do you know which type your laptop uses? Pure LED backlit screens with have only one ribbon cable to it. CCFL screens will have a second connection.

 

Hey guys, sorry if you do not see my replies for few days. I am working now so I may have not enough time to check this post. I will try to check it frequently.
If you are having backlight issue, please post board part number which is mostly beginning with MBX.
If your laptop has 2 connectors from single LCD cable, then you don't have LED backlight.

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i have a VAIO® E Series Laptop SVE11135CXW with the samed problem no backlight after replacing scren it works great with an expernal mointor conected to it but on new screen you cnat hardly see vaio logo when you turn laptop on can any one please help me to find the baacklight fuse thanks

 

Anyone have a location on the fuse for a Vaio svf1521mcxb ? Any help would be greatly appreciated. Thanks!

 

Hello Friend

if after replacing N Fuse problem not solve then please check the DISPLAY CABLE its the one reason for No LIGHT in LCD Pannel

 

hi there have same problem, dimed screen can you show where is location of that fuse? Model sony vaio 71911M. just replaced screen and got same problem

 

I can confirm I had the same problem this fix worked for me ...great work guys

 

[
Hi guys
I need help with a Packard bell easy note ts which has no back light after screen cable got shorted out, MB is a P5WEO LA 6901P,
I checked two screens and I have display and no back light. Also checked output on screen cable and had 19V on 3 wires and 3.5 on the other these were for LED backlight as best I can figure. I found a F1 and F2 which were beside HDMi and external display outlets, both fuses are fine. I have a good meter and can't fine any faults on the board. But some thing defo got damaged, Is there more fuses ??

Please help and thanks Willie
http://imageshack.com/a/img905/299/yDLh5m.jpg
http://imageshack.com/a/img661/6435/XZ7Ell.jpg
http://imageshack.com/a/img538/8712/bSVBdX.jpg
http://imageshack.com/a/img661/9251/iX5CmF.jpg
http://imageshack.com/a/img904/2590/7ducT8.jpg
http://imageshack.com/a/img911/3333/DnMMpk.jpg
http://imageshack.com/a/img661/6333/9u0YIm.jpg
http://imageshack.com/a/img905/9485/QHVbAh.jpg
http://imageshack.com/a/img909/9247/BszKte.jpg
http://imageshack.com/a/img537/910/AKSvUV.jpg
http://imageshack.com/a/img912/6945/H0n5jv.jpg

 

Sorry pic linked
http://imageshack.com/a/img905/299/...ttp://imageshack.com/a/img661/6435/XZ7Ell.jpg
http://imageshack.com/a/img538/8712/bSVBdX.jpg
http://imageshack.com/a/img661/9251/iX5CmF.jpg
http://imageshack.com/a/img904/2590/7ducT8.jpg
http://imageshack.com/a/img911/3333/DnMMpk.jpg
http://imageshack.com/a/img661/6333/9u0YIm.jpg
http://imageshack.com/a/img905/9485/QHVbAh.jpg
http://imageshack.com/a/img909/9247/BszKte.jpg
http://imageshack.com/a/img537/910/AKSvUV.jpg
http://imageshack.com/a/img912/6945/H0n5jv.jpg

 

I have a SONY VAIO VPCEB11FM that I'm having issues with, I have literally read every post in this thread. A friend wanted me to fix his cracked screen on his SONY VAIO VPCEB11FM, I replaced the screen with a new one, I now got the screen installed but no backlight. So I replaced the inverter as well with a used one i found on ebay. That didn't work. I understand that this thread is about LED screens with no backlight but can anybody guide me through finding which fuses could possibly make the backlight not work? I have a multimeter that I have been tinkering around with trying to figure out something, but it seems like I clueless to what I am doing, especially with these fuses being as small as they are. I will say this much, before the screen was changed, it didn't have a backlight this as well. Any help would be fantastic. Would a bad inverter still push out juice? can i test the inverters i have with just a multimeter and not having to build a whole rig just to test it? Thanks guys, i've been clueless on this....I will provide any additional information as needed.

 

I have done what U have advise...but, still no backlight:/ Funny thing...old screen (broken one) have a backlight, mayby i've done something wrong. Please HELP. I'm quite desperate.

Question 1)
On which PIN should I solder that bridge???? (An arrow pointing a connector on that picture)

Question2)
Or that doesnt matter??

Soory for my English. Still learning

 

THANK U guys!!!!!!!!!!!!!!!! U make my day.
Finally i found it
#316 post enlighted everything, and my friends laptop awaken...

 

@bigm3mike, pictures are showing your laptop has CCFL back light, not LED. You can see there is a small connector next to power connector coming from LCD cable. You should check inverter and make sure 2 connectors on it sit properly.

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hi i have exactly the same problem no backlit here are the pics can somebody help me ?its a vaio vpcs11x9e or pcg 51211m
PiXhost - Free Image Hosting
PiXhost - Free Image Hosting
PiXhost - Free Image Hosting

 

Try F17 near lcd connector.

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Hi,
I have backlight issue on my Acer Travelmate 5810TZ, I have jumpered F1 and F2 just in case... did not solve the problem :-(
Tested it with 2 brand new screens...
Any ideas..?

Dumpt - Image Host
Dumpt - Image Host

 

Hi, do you still have this photo of the fuse location? I'm having the same problem with my vaio p11z

 

Is it old or new model?

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Try F1 again, it is the right one. You can use multimeter to check both ends of F1 if possible.

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I managed to find it, bridged it with solder and it works a treat

 

Hello everyone same problem new display no backlight.
i found a fuse with an N( PF2 above) on motherboar near the LCD connector and i wanna be sure it s the right one.
model sony vaio pcg 5n4l

imgur: the simple image sharer

Thanks

 

Yes, it's the right one.

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Oi ngvuanh, quebrei a tela do meu sony vaio sve14113ebw, e comprei outra tela nova LED, ao colocar a tela ficou escura com a luz de fundo muito fraca, e lendo o forum aqui percebi que vocês falam muito sobre os fusiveis, o meu pode até ser somente o fusivel mais tem outras maneira de backlight acontecer ?
Eu ja sei qual é o fusivel para troca, só quero que você me confirme, se está certo. F4 "N" parte superior da foto.

Ngvuanh Hi, I broke the screen of my sony vaio sve14113ebw, and bought another new LED screen, to put the screen went dark with the backlight very weak, and reading the forums here I realized that you talk a lot about the fuses, can my until the fuse only other way to have more backlight happen?
I already know what the fuse for replacement, I just want you to confirm me, you're right. F4 "N" top of the photo?.

 

F4 is the right one.

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I have tested the fuse with a multimeter, seems to be fine...
Tried it with a new LCD cable, no luck,,,,

Any ideas....?

Thank you

 

Big Thank you to this forum.

My laptop model Sony Vaio VPCEA, the fuse was F16, exactly under the LCD connecter of motherboard.
I bridged the fuse, and it worked.

 

Guys, Same issue here but didn't find any posts related to Sony Vaio VPC-CW190X. I'm having one heck of a time getting to the lower side of the motherboard. So many connections and I seriously doubt I can put this back together. I've attached a picture of the upper side of the mother board beside the monitor connector. I can't see any fuses in that area. Do you guys know if this model has the fuse on the back of the motherboard. I hope its not ----- any advise is very much appreciated.

https://drive.google.com/file/d/0ByLstfLfwdrXNmZPb01Lb05JdXFTNUdSY2FMWDlvQ0p1UjNB/view

 

Find F17 and jump it. It could be on other side.

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hi ngvuanh. please help me. i cant find the right fuse for the backlight of my screen. my laptop is sony vaio pcg-51511L. my brother already bridged the F17 (under the connector with P sign) but nothing happens. is this the right fuse? if so, can you say that my lcd is already broken? thanks sir. awiating for your response.

https://www.facebook.com/photo.php?...791.1073741829.100006034741931&type=1&theater

 

Can anyone advise were the backlight fuse is for this motherboard of : sve151d11m ?

Thanks.

 

Sony Vaio PCG-71911M with LED Screen, no backlight, in my case was the screen connector behind LED screen that was partially disconnected
Here some hint to find and test LCD fuse 1A fast fuse...in my case was OK


Here the connector behind LED screen and another fuse to check, 1,5A fast fuse, in my case was OK

 

Hi,
I have a problem with the backlight of my notebook positivo bgh m-425, is that I have this broken fuse, as I fix? Thank You

https://www.dropbox.com/s/qwlkkuy8vakm2k1/CAM02041.jpg?dl=0

 

Can someone please tell me which fuse is the backlight fuse on my Sony Vaio VPCEB390X?

Thanks!

Can someone please help by aleshaleigh posted Feb 27, 2015 at 2:52 AM

 

PLZ I Need a Confirmation for my SONY VAIO pcg-71511M.Ifound a fuse wifh lettre "N" f5.
Voltage one side 19.25 other side 0.NO Backlight.Is't the right one to change?

THANKE YOU

 

I have a SONY VAIO SVE14AG12L with no backlight. I have replaced the lcd cable, the lcd, and tried jumping multiple fuses. If anyone can point me in a direction of fixing this laptop I would be greatly appreciative.

This is (as) high-res photos I could get of the board.

http://imgur.com/a/MfoyQ

 

F2 by zulu93 posted Apr 8, 2015 at 7:50 PM

F1 by zulu93 posted Apr 8, 2015 at 7:50 PM

Hi .I am new this forum. I landed here after google search reagarding fuses.
Anybody can help me with the fuse on this motherboard please?
My laptop is sony VPCZ2. Motherboard is MBX-236.