Apple 20" iMac black screen

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • primoz1
    Badcaps Veteran
    • Oct 2010
    • 270
    • Italy-Slovenia
    #1

    Apple 20" iMac black screen

    Hi. this computer has welcome sound, but black screen, I dont have any keyboard or external monitor cable etc. but I think is nvidia problem not 100 % shure but good 97%

    So what is major problems with this model, before I do reball ?

    board has mark apple 820-2347-A

    Thank you.
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • 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
    • 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
    • DaniK
      Acer Aspire E5-574-52RH - black screen
      by DaniK
      Hi everyone,
      I have this strange behaviour with Acer Aspire E5-574-52RH, i5 6200U, intel graphics, DA0ZRWMB6G0 Rev G, model ZRW.
      Laptop came in for a SSD upgrade, took everything apart to install the SSD.
      Everything started after modifying BIOS settings to boot UEFI instead of Legacy.
      Laptop works fine, i installed windows 10 and drivers/updates, everything works ok(when it works)
      The black screen problem is random, maybe 5 out 10 times, laptop remains with the black screen, no image

      Symptoms are:
      - random black screen after displaying Acer logo...
      02-21-2024, 06:27 AM
    • ktmmotocross
      Apple A1398 emc 2876 randomly black screen and fan rise
      by ktmmotocross
      Hello.
      Have this A1398 emc 2876 that randomly goes to black screen and raising fan. I know this was problem of gpu or gpu voltage controller, but this one is without gpu.

      Is there some known failure points on them or i just count on cold solder under cpu?
      01-22-2025, 12:36 PM
    • turmix
      AOC U34G3XM, new monitor, black screen with backlight on, possible shortcircuit during dissassembly
      by turmix
      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...
      01-29-2024, 03:48 AM
    • Loading...
    • No more items.
    Working...