Panasonic plasma 50PX77U only 120V?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Biruslapio
    Badcaps Veteran
    • Nov 2013
    • 552
    • Brasil

    #1

    Panasonic plasma 50PX77U only 120V?

    Hello,i have this TV working,fixed it by replacing SS board,in my region AC standard is 220V 60Hz,the service manual and sticker on the TV back cover says 120V AC,in order to use it i need a 220>127V transformer,but analysing the P-board it doesn't seem to really be only 120V.
    Power supply part number is ETXMM655MEH,which is the same as a panasonic plasma manufactured and sold here in Brazil(50PV70LB),that supports full range(110-220VAC).
    The EMC-filter,fuses and relays on P-BOARD are 250V,all the electrolytic caps on primary are 450V,transformers are the same part-number as the 50PV70LB.
    Is there some adaption i can do or any way i can confirm the TV to work in 220V?
    Service manual: https://elektrotanya.com/panasonic_t.../download.html
    Attached Files
  • Biruslapio
    Badcaps Veteran
    • Nov 2013
    • 552
    • Brasil

    #2
    Re: Panasonic plasma 50PX77U only 120V?

    Since no one bothered to answer,i just plugged it in 220V,it works fine,no need to waste money on a transformer anymore.

    Comment

    • Andrew F. Ali
      Badcaps Legend
      • Jan 2014
      • 2450
      • Trinidad & Tobago

      #3
      Re: Panasonic plasma 50PX77U only 120V?

      With the TV plugged in the 220Vac. See if the dc supplies are what is expected.

      Comment

      • freakaftr8
        Badcaps Legend
        • Oct 2012
        • 3743
        • USA

        #4
        Re: Panasonic plasma 50PX77U only 120V?

        I'm pretty sure they would be on par as applying to 22 0 to a 120v circuit would immediately blow the bridge rectifier and open the varistor. Then if jt passed the bridge rectifier without blowing upon plugging in and you would have a lightning show at coils and various IGBTs And you would see some capacitors open right up.
        Last edited by freakaftr8; 03-13-2018, 01:00 PM.
        Did I leave the soldering iron on?

        Comment

        Related Topics

        Collapse

        • jm1234
          Panasonic plasma TX-P42ST50 - 6 blinks
          by jm1234
          Hi,
          anyone able to provide the service manual for old plasma Panasonic TX-P42ST50E?
          It turns off almost immediately (0~5 seconds after pressing the on/off button) and starts flashing the red diode 6 times.
          I disconnected the left-hand side board (SC?, both the ribbon cable and the power cable to it) and also another ribbon going to bottom left board. Then the led signal is 8 flashes. According to service guide to another Panasonic plasma it would mean the left-hand side board is faulty. But I'm not sure it 100% applies to my model.
          I checked that board for any obvious faults...
          05-22-2024, 06:59 AM
        • stecos
          Panasonic Plasma main board repair (ST30 GT30 VT30 ST50 GT50 VT50),LED with 3 blincks
          by stecos
          Hi everyone!
          I happened several times, in the search for help from the web, to consult this very interesting forum.
          So I decided to sign up and I intend to participate actively by making available my knowledge and experience on the subject, I'm a new user but at the same time I'm old in the sense that I have 4 decades of experience in repairing and designing electronics but above all I'm a great passionate about the subject.

          Having said that I come to the gist of my post on the forum as the title suggests.
          For my passion for technology I'm now collecting several...
          11-28-2022, 11:39 AM
        • 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
        • Alicat
          Panasonic Plasma TH-50PZ85U No screen No blinks on red power light
          by Alicat
          Hello,

          Stopped by this site trying to fix my parents Panasonic Plasma TV.

          Model number is TH-50PZ85U

          Power comes on and the red power light stays on solid.

          Did a few checks like hold the power button on for 60 seconds, hold the - Volume while holding the menu button, no luck, still@ blank grey screen as the screen lights up very vague.

          I also hear a few clicks.

          I also think my parents said there was a thunderstorm and the TV failed after that.

          Section 6 in the service manual talks about power and no screen,...
          10-30-2024, 10:09 AM
        • Lintesir
          Panasonic P42S30 Plasma - Pink sparkles
          by Lintesir
          My parents' Panasonic P42S30 died recently, and they asked me to have a look at it. I was able to identify the SN-board as the culprit, as it was shorted. After removing Q401, Q402, Q421 and Q422 the short was gone, so I replaced these components and that got the TV working again. However, when testing the tv a bit, I noticed quite bad pinkish sparkles on some colors. For instance the greyish bar on this forum seems to trigger it quite badly. I made a fullscreen test picture with only that color, with the below result.

          There is about a 5cm high region at the top without any sparkles,...
          07-26-2024, 03:16 AM
        • Loading...
        • No more items.
        Working...