Re: lenovo t430 no backlight
new motherboard fitted by myself, all working as expected!
new motherboard fitted by myself, all working as expected!
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Re: lenovo t430 no backlight
Thanx it's Good for me m
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Re: lenovo t430 no backlight
Not quite the same issue with my daughter's T430. Backlight works during POST and for all BIOS setup stuff, but then shuts off after the Windows splash screen is displayed.
Booted a live CD (Kubuntu if it matters) and it seemed to work for the 30 mins or so I had it running.
Yesterday, I had it sitting in BIOS setup and got pulled away for a couple hours and came back to find the backlight turning on and off every few minutes. Planning on tearing it down tomorrow to check all the fuses etc... Any other things I should check while I'm at it?Comment
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Re: lenovo t430 no backlight
For those guys in the future reading this:
I had the same problem as described by Skiddz, quoted below.
I soldered the fuse F7, and now my backlight works perfectly. The specific component is the one above/left of the F7 text, with the "stripes". It seems to work when measuring using a meter. Half of my backlight died short after being turned on. Seems the fuse was faulty.
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Re: lenovo t430 no backlight
Hi guys
I got the same backlight problem I tryed to fix it but some how I shorten my mobo... And now it's not even power on..... Need help....Comment
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Re: lenovo t430 no backlight
Here is another victim.
Thanks to this thread, I quickly identified F7.
I just removed it and replaced with tiny wire from solder wick.
My laptop is back to life now.Comment
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Re: lenovo t430 no backlight
Hi guys,
i have the same issue. My F7, F8, F16 and F19 have voltage but the problem is not solved. Any another tip to fix this?Comment
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For Badcaps Readers, Please note that I am hopefully going to present this same message to Lenovo to see if they have any insight to the matter as well and figured to share the entirety here for clarification. The System is out of warranty as it is but does have the option to have it extended.
Model Information: T14 Gen 2 (Type 20XK, 20XL) Laptop (ThinkPad) - Type 20XK - Model 20XK0069US
Board: T14 Gen 2 (Type 20XK, 20XL) - Type 20XK.
System Hardware:
Processor: AMD Ryzen 7 PRO 5850U
Memory: 1x 16GB DDR4 3200 (Soldered on Board); 1x Crucial 32GB DDR4...09-08-2025, 10:46 PM -
TE Circuit Protection offers the widest selection of surface-mount fuses available for addressing a broad range of overcurrent protection applications. Helping to prevent costly damage and promote a safe environment for electronic and electrical equipment, our single-use chip fuses provide performance stability to support applications with current ratings from .5A up to 20A.
TE Circuit Protection also offers the telecom FT600 fuse for telecommunications applications. This telecom fuse helps comply with North American overcurrent protection requirements, including Telcordia, GR-1089,...10-07-2024, 06:07 AM -
Good morning guys,
I have a Lenovo V15 G3 that came in with liquid damage. The damage was very minor and some corrosion on the IO board where the power switch was. After cleaning both the motherboard and IO board in alcohol, the laptop turned on and I had backlight for about 3 seconds but nothing further. I don't have a boardview for this laptop (Have requested this in the Schematic Request section), however from previous experience on Lenovo laptops I have checked pins 1, 2, 3 on the EDP connector. When the battery is connected only, I get 8V and when AC adapter is connected, I get... -
Hello!
The image is visible, but there is no backlight! On older Lenovo laptops, this problem could have been solved by replacing a fuse, but now I can't find the solution!
ThinkBook 13s-IML (20RR)
P207JXJ6... -
this tv is throwing me for a loop. do samsung tvs no longer have the backlight self test feature built into the power supply?
i tested the backlight with my LED tester and it lights up both strips. one of them reads 100v and the other reads 63.7v.
unplugged mainboard from power supply but left backlight plugged in, and then plugged psu wall power in. expected to see backlights light up but see nothing.
according to how ive diagnosed in the past, this would almost always be a bad power supply. replacement power supply was cheap like 20$ from ebay. but still i get not even...
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