Thinkpad T430s : Backlight issue

T430/T440 and T530/540 series specific matters only
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redm0nk
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Joined: Fri Jun 05, 2015 12:42 pm
Location: Tallahassee, Florida

Thinkpad T430s : Backlight issue

#1 Post by redm0nk » Fri Jun 05, 2015 12:54 pm

Hello Guys,
I have a Thinkpad T430s series laptop and I am trying to replace the lcd screen. I think I have blown up a fuse or something because I saw a little smoke/spark which came out at the connection. I did a big mistake by replacing lcd while battery was connected (the laptop was off at that moment).
Now, I have the backlight problem where very faint visuals can be seen on the LCD. So, my question is how should I go about fixing this issue?

Any help is appreciated.
PS: the external display monitor works just fine, it is just the display on the laptop which is very dim.

systemBuilder
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Re: Thinkpad T430s : Backlight issue

#2 Post by systemBuilder » Sun Dec 27, 2015 5:32 pm

I think his question was answered on another forum, but I will copy the information into this thread:

(1) Never work on this laptop without removing the battery first. The backlight fuse is very easy to blow if you are connecting or disconnecting the LCD with the battery installed.

(2) Here is a photo of the backlight fuse. In the photo, somebody has replaced the it with a soldered wire-jumper, which is not recommended, you should rather get a 3A fuse at radio shack and do the replacement correctly, otherwise you are likely to blow other circuitry later in the life of the laptop.

https://drive.google.com/file/d/0B6174o ... lJTjQ/edit
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Lots of thinkpads (10+) but I would never be so stupid as to list them all because that would spam everybody's searches and people who *do* try to list them all would be jerks.

redm0nk
Posts: 4
Joined: Fri Jun 05, 2015 12:42 pm
Location: Tallahassee, Florida

Re: Thinkpad T430s : Backlight issue

#3 Post by redm0nk » Sun Dec 27, 2015 6:01 pm

@systemBuilder Thanks for taking the time to answer my old question.
However, I was able to replace the fuse successfully. And Yes, Please disconnect your battery first before operating the laptop. I learned it the hard way :banghead:

kstrid
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Re: Thinkpad T430s : Backlight issue

#4 Post by kstrid » Wed Jan 04, 2017 1:34 pm

https://drive.google.com/file/d/0B6174o ... lJTjQ/edit

I have some difficulties in locating the backlight fuse. Is the picture showing T430s?

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