Re: Dell 1545 screen backlight on but blank display help me
What part number is the screen
What part number is the screen
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Problem
This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached.... -
Hello,
YouTube video of the problem encountered: https://youtube.com/shorts/q7TLNv36LUo
I am a pro and I have a problem that I have never seen despite my 7.5 years of experience on my own and my thousands of repairs, on a customer's Dell G3 15 3500.
On this PC I have already changed the complete palmrest because the keyboard was no longer working properly.
I also changed the screen because the PC fell and the screen was broken.
I changed the battery with a new and original battery.
I also had corrosion/oxidation on the... -
Hello.
I have a Dell 5480 that show display only on external, through HDMI.
It's own display is completely dead, total blank, i checked with lot of light to see if backlight is dead but no, nothing at all.
I want to check all possibilites before order a new screen so any advice welcomed.
Schematics attached, bought them for dirty cheap (my mb is rev 2.0 and schematics are rev 1.0 though)
Thank you!... -
Hello
I have search everywhere for a solution for my problem, but cant find it anywhere.
When I was away to trow some garbage i always look in the electronic bin.
and this time i find a laptop.
Dell G3 15 3500, when I get home i look at the battery, add one harddrive, plug in the powercord.
the lamp for charmig is white.
Tryed to start it, the screen blink for a second, the keyboard lightsup, the fans and HD starts.
but no Dell logo.
I tryed with a hdmi cable to another screen, still black.
I started to search solution and tryed...07-06-2025, 06:18 AM -
Hi there,
I have a Dell monitor model P2417H white screen display. The panel is samsung LTM238HL05. I measure test points and don’t anything like VGH, VGL, … still have 5V. Please suggest me some thing.
Thank a lot!
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