Samsung LN46C630 screen just went black

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  • Mgiffune
    Samsung UN60EH6000F Black Screen, Backlight and Sound Good. Power Cycle Returns Picture
    by Mgiffune
    I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started ‘fading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.

    I ordered a supposedly ‘new' Tcon board this time, and    ...
    06-09-2024, 10:28 AM
  • HTR-Informatique
    Dell G3 15 3500 - Battery bug (black screen and flashing keyboard backlight)
    by HTR-Informatique
    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...
    02-09-2025, 06:51 AM
  • howardc64
    A1312 (27” iMac 2009-2011) A1407 (Thunderbolt Display) A1316 (Cinema Display) Display Black Screen Repair
    by howardc64
    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....
    08-04-2024, 10:36 PM
  • totof
    Samsung UE50KU6070 black screen
    by totof
    Hello,
    I have my TV model UE50KU6070 which I am trying to repair.
    BN41-02528A / BN94-10800C motherboard.
    If I disconnect the motherboard from the power board, the backlight works. When the motherboard is connected the backlight works but the screen remains black.
    When I plug the TV into the electrical outlet, the standby LED lights up but no reaction to an attempt to start it with the remote control for about 1 minute. During this minute the TV consumes about 20W.
    After one minute the consumption drops to 0W and the TV can turn on with the remote control but...
    09-26-2022, 02:34 PM
  • VcemPzd
    Black screen Lenovo legion 5 pro 16ACH6H gaming laptop
    by VcemPzd
    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...
    04-28-2025, 10:14 AM
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