New issue pn50a400

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • tvguy616
    Member
    • Sep 2013
    • 14
    • US
    #1

    New issue pn50a400

    This was my previous thread:

    https://www.badcaps.net/forum/showthread.php?t=31898

    I was able to get the TV working for about a week before this happened, vertical bars. Both outer edges are out along with 2 strips towards the center.

    Did a logic board test as advised in my previous thread to see if anything changed. Went through test and the same pattern was visible throughout the entire test.

    Looking through some other threads it looks like the panel may be toast. But I was looking for some other opinions before I totally write this one off.
    Attached Files
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: New issue pn50a400

      Definitely a defective plasma panel.
      These models are terrible for this problem.
      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

        Previous template Next

        Related Topics

        Collapse
        • thetonywarren
          TCL 43S435 NO BACKLIGHT ISSUE, LEDS TEST OK
          by thetonywarren
          I have a TCL 43S435 with no backlights. I contacted ShopJimmy and they said power supply. I got replacement power supply, but still doesnt work. I have confirmed that there is an image with flashlight test. I have also verified that the led strips work when I probe them with LED tester. Any ideas would be helpful. I am also geting a double blink on the status led when trying to turn it on......Nothing on the power supply looks suspect, and caps look ok. Where should I start to test......Thanks!...
          4 Photos
          04-23-2025, 10:48 AM
        • Tynan Dill
          Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
          by Tynan Dill
          I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

          Upon bringing it home and plugging it up, it showed a standby light.

          I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

          The screen seems to blackout and stay black, but with a flashlight I can see the display.

          With my Playstation 4 connected via HDMI, and running a game I can hear sound.

          Assuming...
          ORIGINAL POWER SUPPLY BOARD
          7 Photos
          11-22-2024, 01:46 PM
        • chth96
          How Can I test PWM DM0365R?
          by chth96
          Hello
          I have power adaptor(220V/input, 12V 1.2A/output) which has symptom of fluctuating output DC voltage between 11.5V-12.2V.
          So I opened its plastic case and when switched it on, I heard constant tik tik sound from inside its PCB.
          I measured DC voltage between negative and positive pin of the largest capacitor(400v 10uf) and it was measured contant 300V.
          I also measured ESR value of all capacitors and I noticed that one of capacitor(KMG 16v 470uf), which located in the secondary side, have high ESR value(10 ohm),So I replaced it with same specification NXH capacitor....
          06-18-2025, 04:14 PM
        • Kooopa
          Acer Nitro 5 AN515-43 Turns on Then Off..
          by Kooopa
          Hi! I'm back again... so I solved my previous issue but now it's back with a vengeance...

          First, history... previous issue was dead motherboard, blinking power LED, no fan spin nor LED backlight, which was caused by a missing SLP_S5#. This was fixed when I replaced the RTC crystal.

          Which brings us to the present. The screen started glitching every other 2 seconds. The screen corruption looks like the horizontal pixels/scan-lines are being shifted to different spots. This also happens on the BIOS setup. So I thought, "Okay, this might be my LCD since the thing has...
          10-06-2024, 09:44 AM
        • langbaobao
          DIY 3D-Printer WSON8 Pogo Pin Adapter
          by langbaobao
          Hi.

          I'm posting this here in part as a memo to self as well as to describe the procedure I used in case anyone else found it useful. I found a lot of the necessary information to make this work on this forum and I figured I would give something back. If this is not the appropriate place to post this, I don't mind it being deleted but I hope it can help other people.

          I got an admin password locked HP Elitebook 840 G5 recently that I wanted to unlock. I'm a relative newcomer to reprogramming and unlocking firmware. The only previous experience I had was unlocking a BIOS...
          01-08-2024, 05:58 PM
        • Loading...
        • No more items.
        Working...