Another Sanyo DP42848 Good Sound/No Picture

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  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #41
    Re: Another Sanyo DP42848 Good Sound/No Picture

    When the panel is out (be super, super careful with it) you can power the TV on as normal. You take the panel out from the front of the TV, not the rear.
    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

    • tocold4u2
      Badcaps Veteran
      • Dec 2012
      • 284
      • usa

      #42
      Re: Another Sanyo DP42848 Good Sound/No Picture

      thanks tom.. i had checked the inverter boards a little,,all readings were 10.01-10.05 on the fet , but im not gona ruel the inverter boards out yet !! it`s either that or the two bulbs that has black/smokey area on them.
      i saw them inverter boards around 40-50 bucks . i will tear into it here in a few and get down to the bulbs,,,being new at the lcd's i'm trying to be careful n going slow.

      Comment

      • tocold4u2
        Badcaps Veteran
        • Dec 2012
        • 284
        • usa

        #43
        Re: Another Sanyo DP42848 Good Sound/No Picture

        was just geting ready to take the screen off to get to the bulbs and decided to power it on real qiuck, i saw on the screen in a blue box was do3-1 is this a error code or saying where the prolbem is ?? any help out there??

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #44
          Re: Another Sanyo DP42848 Good Sound/No Picture

          Don't know how about a picture? Never heard of error code appearing on LCD...
          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

          • tocold4u2
            Badcaps Veteran
            • Dec 2012
            • 284
            • usa

            #45
            Re: Another Sanyo DP42848 Good Sound/No Picture

            it still shuts down right after powering on,,,,screen black the box is blue ,,,,i couldn`t find any answers on the net,,,,,so i guess i will keep going

            Comment

            • tocold4u2
              Badcaps Veteran
              • Dec 2012
              • 284
              • usa

              #46
              Re: Another Sanyo DP42848 Good Sound/No Picture

              i was almost going to wait and replace the inverters first,,,but after seeing the two bulbs that had burnt spots on them,,,thinking thats where the prolbem is.

              Comment

              • tom66
                EVs Rule
                • Apr 2011
                • 32560
                • UK

                #47
                Re: Another Sanyo DP42848 Good Sound/No Picture

                Pictures, please.
                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

                • tocold4u2
                  Badcaps Veteran
                  • Dec 2012
                  • 284
                  • usa

                  #48
                  Re: Another Sanyo DP42848 Good Sound/No Picture

                  it s tore down to the bulds there is 1 bulb 4 sure blown ,,,,if the bulb was taken out would it work ?? as in staying lit up instead of just lighting up for a split second

                  Comment

                  • tocold4u2
                    Badcaps Veteran
                    • Dec 2012
                    • 284
                    • usa

                    #49
                    Re: Another Sanyo DP42848 Good Sound/No Picture

                    got to charge the battery in the camera ,,i will put a pictures up in half hr
                    should i check the board that the bulbs plug into?

                    Comment

                    • tocold4u2
                      Badcaps Veteran
                      • Dec 2012
                      • 284
                      • usa

                      #50
                      Re: Another Sanyo DP42848 Good Sound/No Picture

                      i'm on my other computer,,,,so i got to serch for the pictures
                      Attached Files

                      Comment

                      • tocold4u2
                        Badcaps Veteran
                        • Dec 2012
                        • 284
                        • usa

                        #51
                        Re: Another Sanyo DP42848 Good Sound/No Picture

                        a bulb in middle of screen
                        Attached Files

                        Comment

                        • tocold4u2
                          Badcaps Veteran
                          • Dec 2012
                          • 284
                          • usa

                          #52
                          Re: Another Sanyo DP42848 Good Sound/No Picture

                          the end /side
                          Attached Files

                          Comment

                          • tom66
                            EVs Rule
                            • Apr 2011
                            • 32560
                            • UK

                            #53
                            Re: Another Sanyo DP42848 Good Sound/No Picture

                            You need to fire up the screen to find the faulty bulb.
                            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

                            • tocold4u2
                              Badcaps Veteran
                              • Dec 2012
                              • 284
                              • usa

                              #54
                              Re: Another Sanyo DP42848 Good Sound/No Picture

                              yes i fired the screen up there is two bulbs that are bad. the screen shuts down right after it starts up. if i remove the two bulbs will the screen fire up? or do the bulbs have to be in ?

                              Comment

                              • tom66
                                EVs Rule
                                • Apr 2011
                                • 32560
                                • UK

                                #55
                                Re: Another Sanyo DP42848 Good Sound/No Picture

                                It'll detect any faulty or missing bulb, you'll need to replace them.
                                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

                                • tocold4u2
                                  Badcaps Veteran
                                  • Dec 2012
                                  • 284
                                  • usa

                                  #56
                                  Re: Another Sanyo DP42848 Good Sound/No Picture

                                  dang,,,,,i kinda figured that

                                  Comment

                                  • tocold4u2
                                    Badcaps Veteran
                                    • Dec 2012
                                    • 284
                                    • usa

                                    #57
                                    Re: Another Sanyo DP42848 Good Sound/No Picture

                                    well there looked to be 2 bulds not working,,, and there was another that had the burnt look to it so i took it out also!! i did break 1 of those plastic taps that hold the bulb in place,,then i figured out how to take them out,,,,lol !! also i stoped at raido shack,,they have these (mini wire clips) the bulb will fit in it pretty good ! i did find bulbs at a place called rescue parts. i guess now its a waiting game for the parts to come in! i hope this is the fix for the tv!!

                                    Comment

                                    • tom66
                                      EVs Rule
                                      • Apr 2011
                                      • 32560
                                      • UK

                                      #58
                                      Re: Another Sanyo DP42848 Good Sound/No Picture

                                      Just don't chip or break the LCD glass in any way, or you can say goodbye to it!!!! I learnt this lesson the hard way!
                                      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

                                      • tocold4u2
                                        Badcaps Veteran
                                        • Dec 2012
                                        • 284
                                        • usa

                                        #59
                                        Re: Another Sanyo DP42848 Good Sound/No Picture

                                        i got everything over to the side till the bulbs come in (1-2 wks) yea i hope that dont happen,,but i would only be out 15 bucks,,,,,lol i will keep ya posted on this project !!

                                        Comment

                                        • tocold4u2
                                          Badcaps Veteran
                                          • Dec 2012
                                          • 284
                                          • usa

                                          #60
                                          Re: Another Sanyo DP42848 Good Sound/No Picture

                                          7 bulbs with shipping was 35 bucks that way i have a few extra bulbs !!

                                          Comment

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