Philips 50PF9631D/37 Half Screen

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  • cheebster
    Badcaps Veteran
    • May 2008
    • 373
    #1

    Philips 50PF9631D/37 Half Screen

    Hello ! I just got this Philips 50PF9631D/37 Plasma, from a customer who was told repair was 1000$ into another shop. I opened the unit up, powered it on after they 'estimated' it, and found a 35V cap soldered upside down. Well, i found out after powering on the display and found it smoking on the power supply.

    So, i replaced that caps, installed it the proper way, and tadam, tv powered on. The owner, first stated the set was dead.

    So now, here's the result i get,

    http://imgur.com/aFLwbfQ

    For some reason, the pictures look like there's some yellow banding, but there's not. There's a yellow huge stain/spot in the middle, and colors are weird in the bad half, but the good half look perfectly black, and then if i press 'menu' i get a very clean meny in half of the tv.

    Anyone got a clue where i could start, could it still be caps related in the psu ?

    I tried using freezeit and heating the psu with a hairdryer, but it didn't make a difference. It's weird, half of the screen is very clean. Any input would be very appreciated, keep in mind i'm a computer technician, just doing these tv's once in a while for fun. Thanks !!!
    Tags: None
    • vlado66
      Member
      • Apr 2015
      • 10
      • SLOVENSKO
      #2
      Re: Philips 50PF9631D/37 Half Screen

      Defective panels

        Comment

        • ReeceyBurger123
          Never Give Up !
          • May 2014
          • 7325
          • Britain
          #3
          Re: Philips 50PF9631D/37 Half Screen

          I agree bad Panel, possibly will need a Tab bond repair.
          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

            • cheebster
              Badcaps Veteran
              • May 2008
              • 373
              #4
              Re: Philips 50PF9631D/37 Half Screen

              Really weird. The guy said there was a surge, and it completely stopped working, no power nothing. They had the tv in the repair shop for 6 months !

              When they brought it here, the tv was laying flat in the van. Could it be damage from the transport that caused this ?

              Any cowboy way of doing the tab bond repair, like erasers or something that could give this one some more life ? Thanks for any info !

                Comment

                • cheebster
                  Badcaps Veteran
                  • May 2008
                  • 373
                  #5
                  Re: Philips 50PF9631D/37 Half Screen

                  Anyone knows if it's worth it to take it completely apart to look at the tab bonding for possibly fixing, of if it's a waste of time and should go to the recycling as is ? Thanks

                    Comment

                    • Moreno83
                      Badcaps Legend
                      • Jun 2014
                      • 2008
                      • The Netherlands
                      #6
                      Re: Philips 50PF9631D/37 Half Screen

                      Thats a "defective" panel indeed. They probably already tried to remove the lcd panel from the tv and failed. The tab bonds are damaged.

                      You can try to remove the bezel and apply some pressure on the tabs and see if the screen turns back to normal. Its your only option.
                      I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK
                          #7
                          Re: Philips 50PF9631D/37 Half Screen

                          Since this is a plasma I'm not 100% convinced the panel is bad. I would check that the Va fuse on the lower address boards is good. Also, check the cables are seated. Do not unplug or plug in Va with power connected as you may cause damage to the panel (if it ain't already knackered...)
                          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

                            • ReeceyBurger123
                              Never Give Up !
                              • May 2014
                              • 7325
                              • Britain
                              #8
                              Re: Philips 50PF9631D/37 Half Screen

                              Rigt you are Tom thought this was an Lcd lol Doh !
                              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

                                • tom66
                                  EVs Rule
                                  • Apr 2011
                                  • 32560
                                  • UK
                                  #9
                                  Re: Philips 50PF9631D/37 Half Screen

                                  I didn't even need the model number to tell it's a plasma you can see the blue-yellow banding from the subfields. As seen here in slow motion:
                                  https://www.youtube.com/watch?v=yWecqe04DTI

                                  if a CMOS camera with a slow shutter takes the picture it'll appear in blue-yellow bars
                                  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

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