TH-46PZ85U no picture

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • dietzcj
    Senior Member
    • Mar 2011
    • 114

    #21
    Re: TH-46PZ85U no picture

    TNPH0721ABS ...any one have this ? I do not want to go to Ebay and pay $165 for this.
    I'd rather just sell off these good boards.

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #22
      Re: TH-46PZ85U no picture

      Maybe it's possible to repair the D board if you post some detailed photos I can point out some things to test.
      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

      • dietzcj
        Senior Member
        • Mar 2011
        • 114

        #23
        Re: TH-46PZ85U no picture

        Will do, although I have 2 D boards so I will photo one of them and then test on the other.
        ( I bought a replacement that's why I have 2 of them)
        Last edited by dietzcj; 09-27-2012, 09:28 AM.

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #24
          Re: TH-46PZ85U no picture

          Sorry, I meant to say the A board. D board is probably OK in your case.
          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

          • dietzcj
            Senior Member
            • Mar 2011
            • 114

            #25
            Re: TH-46PZ85U no picture

            Here is the best pic I can get with my old iPhone3g.
            Attached Files

            if you find these attachements useful please consider making a small donation to the site

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK

              #26
              Re: TH-46PZ85U no picture

              The power supplies are in the bottom right corner, see if you can get a clearer pic of this area.
              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

              • dietzcj
                Senior Member
                • Mar 2011
                • 114

                #27
                Re: TH-46PZ85U no picture

                here ?
                Attached Files

                if you find these attachements useful please consider making a small donation to the site

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK

                  #28
                  Re: TH-46PZ85U no picture

                  Thats good did you use another camera?

                  Test the voltage across the black components with "68" written on them... they are caps.
                  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

                  • dietzcj
                    Senior Member
                    • Mar 2011
                    • 114

                    #29
                    Re: TH-46PZ85U no picture

                    the one labeled 68 are caps ?
                    Wow, okay. what setting should I use with the volt meter for these ?

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK

                      #30
                      Re: TH-46PZ85U no picture

                      Originally posted by dietzcj
                      the one labeled 68 are caps ?
                      Wow, okay. what setting should I use with the volt meter for these ?
                      Yep, tantalum capacitors. Different format to electrolytics and ceramics. More expensive too - you only tend to see them in better TVs, they have better reliability and lower ESR.

                      DC 20V will be fine.
                      TV with lit up screen but not functional.
                      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

                      • dietzcj
                        Senior Member
                        • Mar 2011
                        • 114

                        #31
                        Re: TH-46PZ85U no picture

                        You mean these right ?
                        With TV on, my Vmeter set to Dc20, and which side goes to witch ?
                        I assume the light side toward the end of the 68 is the neg ?
                        Attached Files

                        if you find these attachements useful please consider making a small donation to the site

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK

                          #32
                          Re: TH-46PZ85U no picture

                          Yes, and the other, facing the other way.

                          Polarity isn't important, we're only looking for an absolute value here.
                          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

                          • dietzcj
                            Senior Member
                            • Mar 2011
                            • 114

                            #33
                            Re: TH-46PZ85U no picture

                            Sorry for being such a n00b at this, but I am confused with the multimeter setting.
                            can you cirlce that for me ?
                            Attached Files

                            if you find these attachements useful please consider making a small donation to the site

                            Comment

                            • tom66
                              EVs Rule
                              • Apr 2011
                              • 32560
                              • UK

                              #34
                              Re: TH-46PZ85U no picture

                              See pic.
                              Also move probe from 10A DC to Volts/Ohms/mA jack.
                              Attached Files

                              if you find these attachements useful please consider making a small donation to the site

                              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

                              • dietzcj
                                Senior Member
                                • Mar 2011
                                • 114

                                #35
                                Re: TH-46PZ85U no picture

                                Top one 1.84
                                1.32
                                3.28
                                Attached Files

                                if you find these attachements useful please consider making a small donation to the site

                                Comment

                                • tom66
                                  EVs Rule
                                  • Apr 2011
                                  • 32560
                                  • UK

                                  #36
                                  Re: TH-46PZ85U no picture

                                  OK - those seem OK.

                                  There are two marked test points TP3502 and TP3506. There are F+15V and SUB9V.

                                  Test the voltage on the test points; same range, red probe on the metal pad, black probe on the chassis of the TV.
                                  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

                                  • dietzcj
                                    Senior Member
                                    • Mar 2011
                                    • 114

                                    #37
                                    Re: TH-46PZ85U no picture

                                    There are F+15V and SUB9V

                                    15.8 and 8.9 respectively

                                    Comment

                                    • dietzcj
                                      Senior Member
                                      • Mar 2011
                                      • 114

                                      #38
                                      Re: TH-46PZ85U no picture

                                      Also test point TP3518 15vs = 15.8
                                      And then test point Tp4007 = 4.7

                                      Comment

                                      • tom66
                                        EVs Rule
                                        • Apr 2011
                                        • 32560
                                        • UK

                                        #39
                                        Re: TH-46PZ85U no picture

                                        15V seems a little high but probably OK. I didn't notice there's also a 15VS at TP3518, test it the same. I'm heading to bed now, got lectures in the morning .
                                        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

                                        • dietzcj
                                          Senior Member
                                          • Mar 2011
                                          • 114

                                          #40
                                          Re: TH-46PZ85U no picture

                                          Anything else to check ?
                                          Oh I have a question also about the Suffixes on the boards.
                                          Is it possible to switch them to a different suffix ?

                                          Comment

                                          Related Topics

                                          Collapse

                                          • Tr0ll
                                            T-con suspect issue. Both ribbon cables no picture. One ribbon cable ok. (58pus8545)
                                            by Tr0ll
                                            Hi guys! I realized you have a lot of knowledge here so i am hoping you could point me in right direction with my odd issue.

                                            The Tv is a Philips 58PUS8545/12, it had no picture but working backlights.

                                            Original T-con:
                                            Opened the Tv and tested to unplug one ribbon cable at a time. With this test i could see that i got fine picture on both halves as long as there was only one ribbon cable connected, with two connected picture were gone.

                                            First replacement T-con:

                                            I thought it might be t-con and ordered new t-con from china(supposedly tested)...
                                            10-07-2023, 07:48 PM
                                          • JJAAMM
                                            SAMSUNG UN55KS9000F picture fades then distorts into vertical lines after 20 seconds
                                            by JJAAMM
                                            This was my main TV for the last 6 years. I'm not inclined to throw out a $2600 TV so quickly so I'm trying to investigate the issue.

                                            Problem
                                            TV was disconnected from power for 6 months during construction. When I plugged it yesterday picture was fine, after 30 seconds it dimmed then started developing horizontal lines, picture then starts to ghost vertically until it degrades into vertical streaks. TV always displays a perfect picture when cold. I can unplug TV for 5 minutes and plug it back in and picture is restored for 20 seconds. I can also keep it in standby mode...
                                            07-06-2023, 06:01 AM
                                          • TR103
                                            Samsung TV model UE50TU: rebooting, backlight, sound, but no picture
                                            by TR103
                                            Hi, I have a Samsung UE50TU with:
                                            - sound and backlight, but no picture
                                            - when it arrived, it had a picture for a few seconds
                                            - it keeps rebooting
                                            - without ribbon cable between the two panel boards, it does not reboot but I have no picture
                                            - without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
                                            - when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.

                                            - without cable between mainboard and lcd panel and with a jumpered...
                                            01-22-2025, 04:12 PM
                                          • Mgiffune
                                            Samsung UN60EH6000F Black Screen, Backlight and Sound Good. Power Cycle Returns Picture
                                            by Mgiffune
                                            I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started ‘fading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.

                                            I ordered a supposedly ‘new' Tcon board this time, and
                                            ...
                                            06-09-2024, 10:28 AM
                                          • CyberPhoenix
                                            Issue with picture quality of Sony bravia TV
                                            by CyberPhoenix
                                            Hello, Last week I bought the 50" Sony X80j tv everything was working fine, untill I plugged the tv in a ups power supply 650va the tv remote control became unresponsive and the TV became laggy after a while the picture quality isn't the same as before the tv seems less brighter and the picture is somehow blurry, people's faces don't look as natural as before, there is a mini orange-pink tint to the edge of people's faces especially in NETFLIX Dolby Vision like in One Piece ep1 Alvida skin tone, my intention was to protect the tv but something went wrong I checked the ups with a multimeter,...
                                            01-22-2024, 02:08 AM
                                          • Loading...
                                          • No more items.
                                          Working...