Hi all, my hp g62 is showing black screen. Connecting it to an external monitor works. I tried the panel and the flat on another motherboard and it works. I would like to know which component is causing this malfunction. Thank you all.
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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 everyone !
My name is Chris, I am a 30 years old embedded software developer working in the automotive industry. I am really passionate about learning new skills and repairing/crafting stuff. I came around this forum last week with the goal of repairing my faulty gaming laptop, indeed, I was video editing on it when suddenly a black screen popped and never disappeared
I bought some stuff to try to repair it and learn as many things as possible about computer repairs but nothing worked so far. When the black screen appeared, my legion 5 pro was connected to my external monitor...
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Onkyo TX-SR607 HDMI problem showing a black screen intermittently, audio was OK.
It would usually cut out a few minutes after power on, for maybe 1 minute then work OK, then cut out and go to black again. Or fade out to sparkles and noisy video.
Well known is these boards need recapping and there is a strange mix of parts on both sides of the board.
The bottom of the board has 100uF 4V (5.3*5.3mm, qty 5) and 220uF 4V (6.6*6.6mm, qty 5).
Per the service bulletin, an issue is the Toshiba LDO's want low ESR for stability so I went with 100uF 6.3V polymer... -
Hello, I'm working on a new deskmod pc project and have a problem with my monitor, an AOC U34G3XM, well, I may have bricked it.
The monitor was dismanteled and the separate parts parts integrated in the desk. the screen panel alone is on the upper part, and main board/video board + power board on the back of the desk (not enough place on the cover to fit it)
At first everything was working smoothly, then I decided to change the connexion between the video board and the screen for a longer one. Still working fine
During another reassembly, I made a mistake, and... -
Hey folks,
I picked this neat monitor up from a recycling center years ago, and it worked fine for a long time. I know they are prone to T-con issues with the Altera chip, but I've yet to experience any symptoms of that going. I always perform scaling on the GPU though. It had occasionally thrown a black screen at me, that was usually reset by powering it off, and reseating the DVI-D cable in the sole input. I gave it to my brother who said the problem got worse, and it would be very difficult to get it to display a picture, it took lots of fiddling. As far as I understand him, it always...
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