Philips 46pfl5505d/f7

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  • CapLeaker
    Leaking Member
    • Dec 2014
    • 8198
    • Canada

    #61
    Re: Philips 46pfl5505d/f7

    delete double post.
    Last edited by CapLeaker; 09-10-2015, 05:01 AM.

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    • CapLeaker
      Leaking Member
      • Dec 2014
      • 8198
      • Canada

      #62
      Re: Philips 46pfl5505d/f7

      Funny... third try to post.
      So what it looks like the BL-sw pin 14 coming from the main board is intermittent, or not there most of the time. The LED blinking 21 times is probably a backlight error. I think your PSU is fine. So what to do next to disconnect only BL-sw pin 14 that goes between the PSU and the main board and force it on manually with a resistor.

      Comment

      • krygods
        Badcaps Veteran
        • Dec 2014
        • 257
        • USA

        #63
        Re: Philips 46pfl5505d/f7

        1k ohm resistor from CN2 Pin 9 to Pin 14?

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        • CapLeaker
          Leaking Member
          • Dec 2014
          • 8198
          • Canada

          #64
          Re: Philips 46pfl5505d/f7

          yes

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          • krygods
            Badcaps Veteran
            • Dec 2014
            • 257
            • USA

            #65
            Re: Philips 46pfl5505d/f7

            Ok I jumped Pin 9 to Pin 14 with 1k resistor.

            Backlight comes on, standby light blinks 21 times, during the pause between 21 blinks the backlight turns off and then turns back on when the 21 blinks starts over.

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            • CapLeaker
              Leaking Member
              • Dec 2014
              • 8198
              • Canada

              #66
              Re: Philips 46pfl5505d/f7

              When there is a pause during the 21 time blinking LED, does PSon go low in voltage?

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              • krygods
                Badcaps Veteran
                • Dec 2014
                • 257
                • USA

                #67
                Re: Philips 46pfl5505d/f7

                Yes PSon goes from 3.1VDC to zero and then back to 3.1VDC

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                • CapLeaker
                  Leaking Member
                  • Dec 2014
                  • 8198
                  • Canada

                  #68
                  Re: Philips 46pfl5505d/f7

                  5v stby rock solid during this?

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                  • krygods
                    Badcaps Veteran
                    • Dec 2014
                    • 257
                    • USA

                    #69
                    Re: Philips 46pfl5505d/f7

                    Rock solid at 5.4VDC

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                    • CapLeaker
                      Leaking Member
                      • Dec 2014
                      • 8198
                      • Canada

                      #70
                      Re: Philips 46pfl5505d/f7

                      main board problem

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                      • krygods
                        Badcaps Veteran
                        • Dec 2014
                        • 257
                        • USA

                        #71
                        Re: Philips 46pfl5505d/f7

                        possible to troubleshoot or just find a replacement?

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                        • CapLeaker
                          Leaking Member
                          • Dec 2014
                          • 8198
                          • Canada

                          #72
                          Re: Philips 46pfl5505d/f7

                          What is your mainboard? Maybe upload some hi res, straight shot pics. That stuff is small and we have to trace. Got to find the standby processor with the BLon pin and see what is what... not an easy thing. That feeds of course from the 5V STBY and it being blown, it probably done something somewhere to it. There is also the STBY processor EEPROM, that could prevent the TV to turn on proper.

                          So, if you find a working main board for cheap, that's your best option right now.

                          Comment

                          • krygods
                            Badcaps Veteran
                            • Dec 2014
                            • 257
                            • USA

                            #73
                            Re: Philips 46pfl5505d/f7

                            Well, I've looked online for main boards are there aren't any at all for sale. I'll keep an eye out in the meantime, but if you don't mind helping with troubleshooting I'll get out the tripod and DSLR and take some Hi-Res pics of the front and back of the board.

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                            • CapLeaker
                              Leaking Member
                              • Dec 2014
                              • 8198
                              • Canada

                              #74
                              Re: Philips 46pfl5505d/f7

                              sounds like a plan

                              I hope someone has maybe a schematic for the PL10.7 chassis main board?
                              Last edited by CapLeaker; 09-10-2015, 04:04 PM.

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                              • krygods
                                Badcaps Veteran
                                • Dec 2014
                                • 257
                                • USA

                                #75
                                Re: Philips 46pfl5505d/f7

                                Here are front and back shots for the time being. As soon as the DSLR is done charging I'll get some Hi-Res pics of the front and back.

                                I believe this is a link to the service manual if I'm not mistaken.

                                http://www.manualslib.com/products/P...7-1477495.html
                                Attached Files

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                                • CapLeaker
                                  Leaking Member
                                  • Dec 2014
                                  • 8198
                                  • Canada

                                  #76
                                  Re: Philips 46pfl5505d/f7

                                  Yeah... unfortunately I can't read it. Too small
                                  On pic 1 the lower left corner, that should be the plug for the PSU. Can you make another pic of that section?
                                  Also with pin is the BLon pin on there?
                                  Last edited by CapLeaker; 09-10-2015, 04:27 PM.

                                  Comment

                                  • krygods
                                    Badcaps Veteran
                                    • Dec 2014
                                    • 257
                                    • USA

                                    #77
                                    Re: Philips 46pfl5505d/f7

                                    Here are some pics of the front side with DSLR camera.

                                    I think the images are being re-scaled after I upload them. The original files are 4MB and now under 1MB after uploading. Hope it doesn't affect legibility.
                                    Attached Files

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                                    • krygods
                                      Badcaps Veteran
                                      • Dec 2014
                                      • 257
                                      • USA

                                      #78
                                      Re: Philips 46pfl5505d/f7

                                      Back side of main board
                                      Attached Files

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                                      • krygods
                                        Badcaps Veteran
                                        • Dec 2014
                                        • 257
                                        • USA

                                        #79
                                        Re: Philips 46pfl5505d/f7

                                        BLsw is Pin 1 of CN3002

                                        Comment

                                        • CapLeaker
                                          Leaking Member
                                          • Dec 2014
                                          • 8198
                                          • Canada

                                          #80
                                          Re: Philips 46pfl5505d/f7

                                          Got another idea for you to test. Put the boards back into the TV everything as it supposed to be... no forcing things on the PSU. Heat up the main board with a hair dryer. Don't overheat it though... then turn on the tv. See what it does.
                                          If you didn't get any results, try cooling specific regions the main board (can of duster air upside down) and see if you can find something that way.
                                          I partially traced the BLon pin, but I lost it... (reminds me I should get a bigger screen here).

                                          Comment

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