Toshiba 29PB200E LED TV - Black Screen

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • ant3202
    Badcaps Veteran
    • Jun 2006
    • 274
    • Singapore
    #1

    Toshiba 29PB200E LED TV - Black Screen

    Hi All


    I had a Toshiba LED TV which was not working.
    There were no screen or display / sound.
    This happen just as usual, turning on the television, and there were no screen display on it.
    Only Power LED.

    Remote control seems to be able to capture and process/




    Things I had checked.
    LED Strips is turning ON When startup.
    Voltage are not fluctuating.

    Check on the board on the common diodes, no shorts.



    Disconnected T-Con connector from mainboard, but seems the board is not turning ON.

    Output Capacitor is still within the range of value

    Had checked on the powersupply output.
    13V and 12V (TCON) is missing.
    had disconnected the powersupply cable to mainboard, but there are no voltages still.


    Any guide or help is much appreciated.

    Thank You
    Attached Files
    Tags: None
    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6642
      • Wales
      #2
      Re: Toshiba 29PB200E LED TV - Black Screen

      Do you have the 5V supply?
      Willing to help but I'm no expert.

        Comment

        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
        • 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
        • 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
        • 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...