Dell plasma question

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Rmasters3
    Senior Member
    • Mar 2010
    • 126
    #1

    Dell plasma question

    Picked up a 10+ year old Dell plasma about a year ago, and fixed it with some new caps in the power supply. Just recently it's begun to act up--the lower half the screen goes black.

    This is usually after extended use--1 to 1 1/2 hours. It will flash back and forth with the picture occasionally returning. On/Off doesn't affect it.

    Before I get into it--anyone have suggestions as to what to look for? I'm guessing some solid state device is overheating, but if there a common cause knowing would help.
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Dell plasma question

      It would depend on who made the plasma panel for this unit, but it would likely be a controller board, Y-buffer or X-address board failure. Since it is intermittent, you may be able to locate the exact intermittent part with hot air (a standard hairdryer does a decent job)
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • whiz62
          whiz62
          • Dec 2013
          • 242
          • usa
          #3
          Re: Dell plasma question

          I have a Dell with same symptom. I replaced some caps on power board about three years ago and then the bottom going black started a short while later. i could tap on back lightly and would straighten up. it is in garage now. when i get time i will dig into it. acts like a loose connection. it is a 43" samsung panel.

            Comment

            Previous template Next

            Related Topics

            Collapse
            • Bowline
              Dell E6400 PT434 type Battery Charging Stuck at 1%. Battery Pinouts?
              by Bowline
              My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?

              Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?

              My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
              The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
              I have tried multiple different Dell power adapters. My Dell...
              06-11-2025, 10:13 AM
            • Mots06
              Old Dell E5400 Laptop ( Purchased in the year 2008)
              by Mots06
              Hi, I'm unable to find the motherboard number (PPID number) or the board view for this old laptop. My laptop won't start, and when I enter the serial number on the Dell website, it says the number is invalid. The sticker on the bottom is unreadable because it has faded over time. Unfortunately, I'm unable to start the laptop to use the power cell or explore other options.I needed the CMOS Cell & it also seems the Laptop will not start now because of the power switch issue, which is yet to be detected.
              4 Photos
              07-19-2025, 01:56 AM
            • F R 2568
              Dell Latitude 5420 does not start (no post) need help to find the reason why
              by F R 2568
              Hello all,

              this is my first post, so if I make mistakes please do not hesitate to point them out, thank you in advance.

              I got a Dell Latitude 5420 (Service Tag: 7RFM6D3, Motherboard: GDF40 LA-491P Rev.: 2.0 (A01)) which does not start and I want to repair it. These are the symptoms:

              If the laptop is only connected to the AC adapter (battery removed):

              When I press the power button, the keyboard backlight and the display backlight are turning on. Caps key light is lightning, but key does not respond to pressing it.

              The power/battery...
              01-08-2025, 05:45 AM
            • diamon
              Looking for Dell Latitude 5520 / 5530 / 5540 RJ45 network connector replacement
              by diamon
              I have a Dell Latitude 5530 with a damaged RJ45 network connector. See the attached pictures.

              Have already searched on Farnell / Aliexpress / Ebay and had contact with several suppliers on Aliexpress and Ebay, but they cannot deliver this connector.
              Is there someone inside the EU, who has these connector(s) or perhaps defective motherboard(s) for these laptop models I have mentioned in the topic title.

              Pictures of these boards:
              Dell Latitude 5520 https://www.ebay.com/itm/256052956663
              Dell Latitude 5530 https://www.ebay.com/itm/125844181534
              Dell...
              4 Photos
              02-28-2024, 12:51 PM
            • master3112
              Dell Inspiron 5590 Board 18778-1 no charging, charging not possible
              by master3112
              I would like to share my experience about charging issues with Dell power supplies with the tech community. I am working on a Dell Inspiron 5590, Mainboard 18778-1 with charging problems. The device can be switched on and works so far, only the message appears at startup:

              Alert! The AC power adapter wattage and Type cannot be determined. The battery may not change. The System will adjust the performace to match the power available.

              The power supply unit is not recognized in the Bios and the charging process is set to "idle". I use original Dell battery, type...
              Yesterday, 01:55 PM
            • Loading...
            • No more items.
            Working...