NEC PX-50XR5W (Plasma) Shuts down

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Markus1
    Senior Member
    • Jul 2013
    • 80
    • Australia
    #1

    NEC PX-50XR5W (Plasma) Shuts down

    Hi there,
    Seeking your guidance again.
    At Power On relay clicks, fans start to spin, then after a second or two the relay clicks again and all shuts down. A small red LED on the sub-board of the PSU starts blinking red.
    The front LED indicator at the beginning shows green, after shut down turns off and in about 20 sec turns on red.
    I did try to disconnect power to the Y-drive to observe a brief presence of Va (it is Vd on NEC) and Vs voltages before shut down. Nothing observed and no difference in sequence behavior.
    I could not find anything related to this model on the Badcaps, and had no luck with the PSU schematic search. Hence hoping for a good advice from you guys.
    Attached:
    - full view from the back
    - view of the PSU (with additional heat sinking plates removed)
    Any help will be appreciated.
    Attached Files

    if you find these attachements useful please consider making a small donation to the site

    Tags: None
    • Markus1
      Senior Member
      • Jul 2013
      • 80
      • Australia
      #2
      Re: NEC PX-50XR5W (Plasma) Shuts down

      I would really need some direction on where to start with this shut down problem. Any suggestion? Any chance of a schematics for the Power Supply Unit? Will be greatly appreciated.

        Comment

        • Markus1
          Senior Member
          • Jul 2013
          • 80
          • Australia
          #3
          Re: NEC PX-50XR5W (Plasma) Shuts down

          Still having problem with this TV, still calling for help. Possibly the issue is with Power Supply Unit but it is hard for me to move without the circuit diagram.
          Some internet searches indicate that possibly Panasonic used the same power board.
          In my case (NEC) the PSU is marked as KPC 2294V-0.
          Can any one confirm that it was actually used by Panasonic and in what TV model number?

            Comment

            • ReeceyBurger123
              Never Give Up !
              • May 2014
              • 7325
              • Britain
              #4
              Re: NEC PX-50XR5W (Plasma) Shuts down

              So does Vs shut down even with Ydrive not present ?
              Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

              https://www.facebook.com/Telford-Tel...7894576335359/

                Comment

                • Markus1
                  Senior Member
                  • Jul 2013
                  • 80
                  • Australia
                  #5
                  Re: NEC PX-50XR5W (Plasma) Shuts down

                  Thanks ReeceyBurger123 for you reply.
                  Yes, PSU shuts down even when Ydrive is disconnected.

                    Comment

                    • monrel
                      New Member
                      • Dec 2016
                      • 1
                      • Australia
                      #6
                      Re: NEC PX-50XR5W (Plasma) Shuts down

                      Hi!

                      I have the 61 inch version of this screen and bought the service manual for it, online. It makes mention of your model number in it, a few times. Are you still looking for help with it? If so, I'll send you the PDF.

                      P.S My screen is displaying EXACTLY the same problems as yours. Please let me know if you have any advice.

                        Comment

                        Previous template Next

                        Related Topics

                        Collapse
                        • cloo
                          Panasonic ZT60 plasma tv with strange behavior and 8 blink code
                          by cloo
                          I recently got my hands on a 60" Panasonic P60ZT60 plasma tv (european model) that has some strange issues along with an 8 blink code.
                          It know this tv is getting old but it was once considered one of the best plasmas ever made, and i think it is still holds on to that even by todays standards.


                          So, long story short. When i first got the tv it had a very bright washed out picture with very raised blacks in all picture modes and i couldn't find the cause in the picture setting menus.
                          After doing a factory reset this problem was gone and the picture was back to...
                          01-06-2025, 06:02 AM
                        • goldbird78
                          LG 50PK550 EAX61392501/10 EAY60968801 clicks and shuts off immediately
                          by goldbird78
                          Hi All, I have an LG 50PK550 with the EAX61392501/10 EAY60968801 power supply board. When I turn it on it clicks and shuts off immediately, I have unpluged the power wires to to Zsus and Ysus board and it does the same thing. I have read up and replaced IC301 & d304 and checked the R927 R929 and all 3 fuses on the board and all appear ok. Still does the same, shuts off immediately with or without the z & ysus board hooked up. Any help would be appreciated. Thx
                          02-17-2021, 08:45 PM
                        • bffargo
                          2014 LG 60" Plasma shut down just clicking unless I disconnect 17V line to main CPU
                          by bffargo
                          LG 60PB66550 NOV 2014
                          PSU: EAY63168603
                          PCB: EAX65359531 2013.11.01 Rev:1.0

                          Main board: EAX65399305(1.0) 13.11.27 PU42A/PA42A/PD42A

                          Symptom:
                          While watching, just went black and started clicking relay every few seconds.

                          Initial diagnosis:
                          Removing JUST the main CPU/Input PCB from circuit stops the clicking. No problems with any other boards/drivers. (Removing all other boards and only putting Main back in is all it takes to start clicking again)

                          Deeper diagnosis:
                          Pulling pins #1/#2 (Blue/Grey) from the connector housing...
                          09-09-2022, 07:34 PM
                        • theone111
                          Problem with LG Plasma 60PM6700 - Random power downs
                          by theone111
                          I have an LG Plasma TV 60PM6700 for the past ~12 years.

                          In the last ~3-4 months I have been having some issues.
                          1. Problem: It started with random picture disappearing (sound still worked).
                            Frequency: Happened about once a week.
                            Solution: Had to turn off TV wait a few seconds before turning it on again.
                          2. Problem: Then it got worse and the TV started to shut down and when turning on the no picture just sound.
                            Frequency: Happened about once a week.
                            Solution: Had to turn off TV wait about 10-20 seconds and turn it on again to solve.
                          3. Problem: TV shuts down
                          ...
                          1 Photo
                          07-22-2024, 10:36 AM
                        • huzo
                          HP Omen shuts down when loading OS
                          by huzo
                          The model is 15ec-1061nm
                          Board number is DAG3EDMB8D0​

                          SO i turn the laptop on , and as soon as it starts booting from disk, from usb, windows,linux,HBCD,anything i boot it just turns off....while in bios menu or in linux boot menu it stays on normally...It's like when it starts to use graphics it shuts down...But i measured 0.72V while working on the GPU power line,no excess heat is comming from GPU or CPU, i even removed the heatsink and turned the laptop on and everything worked fine, got a bit hot, fan span to full speed, but it worked like that for few minutes in bios...
                          10-29-2024, 12:05 AM
                        • Loading...
                        • No more items.
                        Working...