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    HP Digital Picture Frame goes black

    HP 8" Digital Picture Frame model df810v1. Screen initially lights up with images but after a few minutes, the screen goes completely black. Would this likely be a capacitor problem? I've posted a picture of the board. If this is likely a capacitor problem, can those bad capacitors be identified for me on this picture? Thanks. None of the capacitors appear to be bulging.
    Attached Files

    #2
    Re: HP Digital Picture Frame goes black

    What is the part number of IC chip that has a heat sink tab to the board and also has a lot of pins on it and looks like some thing spilled on it or burned up it hard to tell which one it is

    It is on left hand side of the board toward the bottom of the board

    Can you take a closer photo of that chip thanks
    Last edited by sam_sam_sam; 05-01-2017, 01:40 PM.
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

    Comment


      #3
      Re: HP Digital Picture Frame goes black

      Thanks. Here's another picture.
      Attached Files

      Comment


        #4
        Re: HP Digital Picture Frame goes black

        conductive glue - bastards know not to use that stuff!!

        Comment


          #5
          Re: HP Digital Picture Frame goes black

          Good or bad?

          Comment


            #6
            Re: HP Digital Picture Frame goes black

            you need to carfully remove it.

            Comment


              #7
              Re: HP Digital Picture Frame goes black

              So the chip is bad? The one that "has a heat sink tab to the board and also has a lot of pins on it and looks like some thing spilled on it or burned up"?

              Comment


                #8
                Re: HP Digital Picture Frame goes black

                no, just remove the brown glue.
                it turns conductive with age and shorts stuff out - causes all kinds of problems.
                specially bad in psu's!!!

                Comment


                  #9
                  Re: HP Digital Picture Frame goes black

                  Thanks. I'll try that. Is there a 'best' way to remove it, aside from being careful?

                  Comment


                    #10
                    Re: HP Digital Picture Frame goes black

                    not really

                    it starts like gum, and as it gets older it becomes brittle like honeycomb
                    so it's very variable.

                    Comment


                      #11
                      Re: HP Digital Picture Frame goes black

                      I would careful removing that glue
                      That a lot better photo

                      Thanks
                      9 PC LCD Monitor
                      6 LCD Flat Screen TV
                      30 Desk Top Switching Power Supply
                      10 Battery Charger Switching Power Supply for Power Tool
                      6 18v Lithium Battery Power Boards for Tool Battery Packs
                      1 XBox 360 Switching Power Supply and M Board
                      25 Servo Drives 220/460 3 Phase
                      6 De-soldering Station Switching Power Supply 1 Power Supply
                      1 Dell Mother Board
                      15 Computer Power Supply
                      1 HP Printer Supply & Control Board * lighting finished it *


                      These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

                      1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
                      2 Hem Saw Computer Stack Board

                      All of these had CAPs POOF
                      All of the mosfet that are taken out by bad caps

                      Comment


                        #12
                        Re: HP Digital Picture Frame goes black

                        Looks like there is also that conductive glue on the high voltage transformer, lower left corner of the photo in the first post. Burn mark on right side of it, likely causing the display to shut down.

                        I have had to deal with that cr!p in HP evil (EVO) mini toaster (SFF desktop) power supply that shorted out from that glue. The supply had the glue poured all over the board. It took me 2 hours to scrape it off the board. Unfortunately, I know of no other way to remove except to carefully scrape.
                        Stupidity should be a crime, especially for drivers. I have NO patience for them.

                        Comment


                          #13
                          Re: HP Digital Picture Frame goes black

                          Thanks for all the help. I'll give it a try and let you know how it turns out.

                          Comment


                            #14
                            Re: HP Digital Picture Frame goes black

                            No luck. Removed most of the glue (using acetone to first soften). See picture. Now, the screen will not light at all.
                            Attached Files

                            Comment


                              #15
                              Re: HP Digital Picture Frame goes black

                              Look at the pads on the transformer the soldiering joint on the left hand side dose not look very good and another one a few pins from that one dose not look
                              Good either I would resoldier all the pins on the transformer

                              If you have an ( ex-o-knife or very thin blade screw driver)I would try to remove more of the glue but be very care not to dig deep in to the board
                              9 PC LCD Monitor
                              6 LCD Flat Screen TV
                              30 Desk Top Switching Power Supply
                              10 Battery Charger Switching Power Supply for Power Tool
                              6 18v Lithium Battery Power Boards for Tool Battery Packs
                              1 XBox 360 Switching Power Supply and M Board
                              25 Servo Drives 220/460 3 Phase
                              6 De-soldering Station Switching Power Supply 1 Power Supply
                              1 Dell Mother Board
                              15 Computer Power Supply
                              1 HP Printer Supply & Control Board * lighting finished it *


                              These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

                              1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
                              2 Hem Saw Computer Stack Board

                              All of these had CAPs POOF
                              All of the mosfet that are taken out by bad caps

                              Comment


                                #16
                                Re: HP Digital Picture Frame goes black

                                Thanks. Is there any way you can point to the areas/pins you're referring to on the picture and re-post it?

                                Comment


                                  #17
                                  Re: HP Digital Picture Frame goes black

                                  Not sure which pins you're talking about. But anyway, what is the purpose of this 'conductive glue'? Is it already conductive and used in place of solder, or is it just glue and it becomes conductive with age? Thanks.

                                  Comment


                                    #18
                                    Re: HP Digital Picture Frame goes black

                                    becomes conductive with age.
                                    probably used intentionally as a "suicide" device to limit the life of the equipment!!

                                    Comment


                                      #19
                                      Re: HP Digital Picture Frame goes black

                                      Ain't that a Btch! But now I'm wondering why removing some of the glue made the problem worse. I was really careful to not damage the board or any connections.

                                      Comment


                                        #20
                                        Re: HP Digital Picture Frame goes black

                                        look at your foto, it looks like you may have cracked a resistor and possibly dislodged the soldering on a cap or 2.

                                        Comment

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