Philips 42PF7320 plasma, strange problems

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #21
    Re: Philips 42PF7320 plasma, strange problems

    And, your meter may be set to VAC?
    On some panels Vset is measured as Vs+Vset so subtract Vs from it to get actual Vset.
    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

    • DPark
      Member
      • May 2013
      • 26
      • United States

      #22
      Re: Philips 42PF7320 plasma, strange problems

      Thanks for the info. I haven't been able to get back to the TV project for a little while, but I will try the suggestions and I'll keep you updated.

      Comment

      • DPark
        Member
        • May 2013
        • 26
        • United States

        #23
        Re: Philips 42PF7320 plasma, strange problems

        Ok, I briefly had a chance to get back to it tonight. I changed out the battery to the multimeter. Still have about the same results.
        Attached Files

        Comment

        • retiredcaps
          Badcaps Legend
          • Apr 2010
          • 9271

          #24
          Re: Philips 42PF7320 plasma, strange problems

          Originally posted by DPark
          Still have about the same results.
          Try putting your black probe on the connector pin marked GND (just below Vset).
          --- begin sig file ---

          If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

          We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

          Please do not post inline and offsite as they slow down the loading of pages.

          --- end sig file ---

          Comment

          • retiredcaps
            Badcaps Legend
            • Apr 2010
            • 9271

            #25
            Re: Philips 42PF7320 plasma, strange problems

            To make sure your multimeter is working properly, try the following test.

            1) Measure the 5V standby rail with it set on 20V DC. It should read something like 5.00V.

            2) Measure the 5V standby rail with it set on 200V DC. It should read something like 5.0V.

            3) Measure the 5V standby rail with it set on 200V DC. It should read something like 5V.

            4) Report your findings for all above.

            If your multimeter is not working correct, which is possible, borrow/buy another one. In addition, if you want help fixing the one you have, start a new post and I'll make suggestions on what could be wrong.

            PS. One retiredcaps' bonus point for a picture of your multimeter.
            Last edited by retiredcaps; 05-27-2013, 11:28 PM.
            --- begin sig file ---

            If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

            We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

            Please do not post inline and offsite as they slow down the loading of pages.

            --- end sig file ---

            Comment

            • retiredcaps
              Badcaps Legend
              • Apr 2010
              • 9271

              #26
              Re: Philips 42PF7320 plasma, strange problems

              Originally posted by retiredcaps
              3) Measure the 5V standby rail with it set on 200V DC. It should read something like 5V.
              Whoops, just noticed my error in cut & paste above.

              The "correct" #3 is

              3) Measure the 5V standby rail with it set on 600V DC. It should read something like 5.0V.
              --- begin sig file ---

              If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

              We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

              Please do not post inline and offsite as they slow down the loading of pages.

              --- end sig file ---

              Comment

              • DPark
                Member
                • May 2013
                • 26
                • United States

                #27
                Re: Philips 42PF7320 plasma, strange problems

                I tried the black probe (with red on the vset pin) to the pin connector ground as well as on the board at different points and it seems to range between 480-530V. Even the two ground pins in the same connector seemed to measure different amounts!

                I tested the multimeter at the 5v location retiredbadcaps sugggested. All seems normal.

                Multimeter at 600 - 4-5 (fluctuates) on the display
                Multimeter at 200 - 5.1 on the display
                Multimeter at 20 - 5.13 on the display

                Comment

                • retiredcaps
                  Badcaps Legend
                  • Apr 2010
                  • 9271

                  #28
                  Re: Philips 42PF7320 plasma, strange problems

                  Originally posted by DPark
                  I tested the multimeter at the 5v location retiredbadcaps sugggested. All seems normal.

                  Multimeter at 600 - 4-5 (fluctuates) on the display
                  Multimeter at 200 - 5.1 on the display
                  Multimeter at 20 - 5.13 on the display
                  My interpretation of your readings above is that your multimeter is defective when using the 600V range.

                  At 600, it should show steady/solid 5 because your standby voltage is a steady/solid 5.13.

                  When it is fluctuating between 4-5, the "4" reading suggests it can be between 3.51 and 4.49.

                  I suggest borrowing or using another multimeter to redo the vset reading.

                  Here is a link to your multimeter



                  As you can see on page 8, when it is set to 600V DC range, there is only one digit of resolution so it should show a steady/solid 5V.
                  Attached Files
                  Last edited by retiredcaps; 05-28-2013, 11:00 PM.
                  --- begin sig file ---

                  If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

                  We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

                  Please do not post inline and offsite as they slow down the loading of pages.

                  --- end sig file ---

                  Comment

                  • retiredcaps
                    Badcaps Legend
                    • Apr 2010
                    • 9271

                    #29
                    Re: Philips 42PF7320 plasma, strange problems

                    Originally posted by tom66
                    On some panels Vset is measured as Vs+Vset so subtract Vs from it to get actual Vset.
                    @DPark, what is your Vs+ reading?

                    If your multimeter is working correctly, then we need to know the Vs+ reading.
                    --- begin sig file ---

                    If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

                    We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

                    Please do not post inline and offsite as they slow down the loading of pages.

                    --- end sig file ---

                    Comment

                    • DPark
                      Member
                      • May 2013
                      • 26
                      • United States

                      #30
                      Re: Philips 42PF7320 plasma, strange problems

                      Finally had some time to mess with this TV again. Model: 42PF222A/37 Power Supply: 44-00101B.
                      It will power on for about 5-10 minutes, but then shuts off after a couple of relay clicks. 5-blink error code when this happens.
                      All voltages seem to check out fine with the new meter I have when the power is on. The only one that seems to be more than 10% off is SND_P.

                      Factory Specs / Actual Reading
                      Va=70 / 70
                      Vsc=206 / 206
                      Se=86 / 86
                      Vset=195 / 194.2
                      5v2=5.2 / 5.17
                      5vsw=5.2 /5.15
                      8v6=8.6 / 8.64
                      12v=12.5 / 12
                      SND_P=18v / 20.2

                      Anyone have any suggestions on what else I should check or replace? I could just buy a refurb board for less than $50 but what fun would that be?

                      Comment

                      • tom66
                        EVs Rule
                        • Apr 2011
                        • 32560
                        • UK

                        #31
                        Re: Philips 42PF7320 plasma, strange problems

                        The voltages look fine -- I don't think the problem is with the PSU.
                        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

                        Related Topics

                        Collapse

                        • celiabrown
                          Issue with Plasma Philips 37inch chassis FTL2.1
                          by celiabrown
                          Hello guys,
                          My Plasma Philips 37inch chassis FTL2.1 does no picture ,and goes into protection mode after 30 seconds (red led blinks at 3Hz).


                          Can someone has any symptom like this ?

                          Thanksโ€‹
                          05-09-2024, 10:56 PM
                        • jean luc ferre
                          laptop hp g72 b52sf screen problems
                          by jean luc ferre
                          Hello,
                          on this laptop hp g72 b52sf i have screen problems as you can see with the photo joined in attachments.
                          the used graphic card is "intel hd graphics" and the id of the integrated screen is : "monitor/SEC3354".
                          i verified the driver of the pรฉripherals and they are ok. i verified the definition and settings of the graphic card and of the screen : definition 1600x900 and refreshment frequency :60hz. (they are the sames for the graphic card and the screen).
                          i don't understand the reasons of the white stripe at the bottom of the screen below the task...
                          06-07-2025, 03:27 PM
                        • Hondaman
                          USB problems?
                          by Hondaman
                          Recently I discovered my SSD died (OCZ/Toshiba 240 GB). It was in a USB enclosure, attached to the Linksys WRT-AC1200 router. Since then I removed the USB enclosure and attached it to my Win7 PC (AMD 8150 CPU, 970 chipset, 64 GB RAM). I also gathered one or two other USB enclosures to figure out what is going on.

                          (I suspect that I lost quite a few MP3 and FLAC files I recently ripped from my audio CDs, I think I lost very little un-replaceable stuff.)

                          I think it is IMPOSSIBLE for Win7 to have any problems with a USB enclosure as long as Win7 knows how to speak to the...
                          08-12-2024, 03:26 PM
                        • limtk55
                          Philips 49PUT5801/98 PANEL PROBLEMS ON BOTH HALVES
                          by limtk55
                          So this Philips TV has backlight but no image. VGH voltage was 0, so decided to buy a replacement TCON board. Fitted new board to no avail. Now panel PCB control boards have multiple shorted MLCC caps on both sides. TCON ICs hot to the touch suggesting that panel drawing more current than usual (internal short?)

                          Measured voltages on new TCON as follows :
                          VGH (29.67V)
                          VGL1 (-4.97V)
                          VGL2 (-14.89V)
                          VCC (3.282V)
                          VCORE (1.202V)
                          HVDD (7.95V)
                          VDD (15.97V)
                          VIN (11.98V)
                          VCOM1 (4.25V)
                          VCOM2 (4.63V)

                          Removed caps that were...
                          11-21-2020, 06:15 AM
                        • clabr
                          Lenovo 11e problems (any sata hdds are not recognized, sleep battery drain)
                          by clabr
                          Need help to solve some problems with this laptop.

                          After working in bed with it one night and heating up too much (probably the cause of this problems) the sata HDD OS windows froze
                          After restart the original Sata HDD was not recognized anymore (but works fine in other laptops or PCs)

                          Tried connecting other good Sata 2.5 HDDs but not one is working in this laptop anymore (not the original nor others)

                          Before this had happened I observed some other problems:
                          When I tried replacing original mecanical HDD with a SSD HDD could not get them...
                          12-02-2021, 08:09 AM
                        • Loading...
                        • No more items.
                        Working...