Panasonic TX-P42S30B - 6 blinks

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • MikeFloutier
    Member
    • May 2015
    • 42
    • UK

    #1

    Panasonic TX-P42S30B - 6 blinks

    Panasonic TX-P42S30B - 6 blinks

    I bought this 2011 model in early 2012 and we use it for around 2-3 hours daily; no problems at all.

    The other day, when using the SD card feature (a rare event) the tv powered itself off.

    Now when switching on I get 3 clicks (relay?) from the Power board followed by 6 blinks from the LED on the front of the tv followed by another click.

    I followed the ShopJimmy diagnostic video for this tv which pointed to a failure in the Main"A" board.

    I bought a used A-board online which was said to be ok. I fitted it today but I get exactly the same response.

    Any ideas how I should proceed?

    Kind regards,

    Mike
  • tw2005
    Badcaps Legend
    • Oct 2011
    • 6458
    • Australia

    #2
    Re: Panasonic TX-P42S30B - 6 blinks

    You have to watch some of those videos, i think they can be incomplete but 6 blink I'd consider A board as rare and never seen A board cause 6.

    SN would be prime suspect. If you have a multimeter and can check for shorts ,look for 30F131 transistors and see if shorted out.

    Comment

    • tw2005
      Badcaps Legend
      • Oct 2011
      • 6458
      • Australia

      #3
      Re: Panasonic TX-P42S30B - 6 blinks

      this is a repair kit to give an idea what to look at, again no certainty that's it just these items but the transistors do blow

      http://www.shopjimmy.com/catalogsear...t/?q=tc-p42s30

      Comment

      • MikeFloutier
        Member
        • May 2015
        • 42
        • UK

        #4
        Re: Panasonic TX-P42S30B - 6 blinks

        Thanks TW2005, I will try to find out how to check for shorts in the transistors you mention.

        I guess I liked the logic behind the diagnostic that suggested isolating the SN board and seeing if the 6 blink remained. I tried this and it did. Doesn't this point to the SN board being ok OR , is isolating the board just another way of creating a 6 blink code?

        Comment

        • MikeFloutier
          Member
          • May 2015
          • 42
          • UK

          #5
          Re: Panasonic TX-P42S30B - 6 blinks

          And thanks for the link to the ShopJimmy SN repair pack.

          Will start researching Shorting tonight, I'm new to all this but have a multimeter and the desire to learn.

          Comment

          • tw2005
            Badcaps Legend
            • Oct 2011
            • 6458
            • Australia

            #6
            Re: Panasonic TX-P42S30B - 6 blinks

            Originally posted by MikeFloutier
            Thanks TW2005, I will try to find out how to check for shorts in the transistors you mention.

            I guess I liked the logic behind the diagnostic that suggested isolating the SN board and seeing if the 6 blink remained. I tried this and it did. Doesn't this point to the SN board being ok OR , is isolating the board just another way of creating a 6 blink code?
            would have to check the fault tree for these. But I think find evidence first before getting anymore boards just in case I'm wrong.
            Don't have exact guide for S30, which cables did you disconnect for the isolation?

            Comment

            • tw2005
              Badcaps Legend
              • Oct 2011
              • 6458
              • Australia

              #7
              Re: Panasonic TX-P42S30B - 6 blinks

              Originally posted by MikeFloutier
              And thanks for the link to the ShopJimmy SN repair pack.

              Will start researching Shorting tonight, I'm new to all this but have a multimeter and the desire to learn.
              a short is zero resitance or very low ohms, often the transistor will be dead short but can go low in ohms too

              Comment

              • MikeFloutier
                Member
                • May 2015
                • 42
                • UK

                #8
                Re: Panasonic TX-P42S30B - 6 blinks

                Thanks, it was ribbon cables A > SN, A > C x2

                Comment

                • MikeFloutier
                  Member
                  • May 2015
                  • 42
                  • UK

                  #9
                  Re: Panasonic TX-P42S30B - 6 blinks

                  Thanks, which terminals on the Transistor should I be checking between?

                  Comment

                  • MikeFloutier
                    Member
                    • May 2015
                    • 42
                    • UK

                    #10
                    Re: Panasonic TX-P42S30B - 6 blinks

                    Ok, looking at the 30F 131 transistors, they appear to have just two terminals soldered to the board so I guess it's those.

                    Is it ok to use my analogue multimeter or do I need a digital one?

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK

                      #11
                      Re: Panasonic TX-P42S30B - 6 blinks

                      The transistor tab, the fat pin at the other end, is also electrically important, so check to that as well.

                      I seem to recall disconnecting bad SN on my TX-P42U30B caused a 6 red code. Could have been 7.

                      Check and see if you have a little green LED light up on your SN and then go out, that is a common sign of a faulty ERC circuit.
                      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

                      • MikeFloutier
                        Member
                        • May 2015
                        • 42
                        • UK

                        #12
                        Re: Panasonic TX-P42S30B - 6 blinks

                        Thanks Tom, I don't get a green led, or any other light. Although there is a red one on the A board.

                        Two or three questions about testing the transistors for shorts:

                        1. Can I do it without removing them from the circuit, and

                        2. Can I use an analogue multimeter?

                        3. Also, since they seem to have 4 tabs, should I try every combination?

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK

                          #13
                          Re: Panasonic TX-P42S30B - 6 blinks

                          Originally posted by MikeFloutier
                          Thanks Tom, I don't get a green led, or any other light. Although there is a red one on the A board.

                          Two or three questions about testing the transistors for shorts:

                          1. Can I do it without removing them from the circuit, and

                          2. Can I use an analogue multimeter?

                          3. Also, since they seem to have 4 tabs, should I try every combination?
                          1. Yes
                          2. Yes, on the lowest ohm range, look for the needle swinging far right. Other tests WILL require a digital meter (an inexpensive Β£10 one is sufficient as long as it is capable of 300VDC measurement or more)
                          3. The middle, disconnected pin is internally electrically connected to the large tab, so you do not need to test that as well.
                          Last edited by tom66; 05-08-2015, 03:16 PM.
                          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

                          • MikeFloutier
                            Member
                            • May 2015
                            • 42
                            • UK

                            #14
                            Re: Panasonic TX-P42S30B - 6 blinks

                            Many thanks Tom, it's bedtime here now, especially after last night's election sleeplessness so I'll give it a go tomorrow.

                            Comment

                            • tw2005
                              Badcaps Legend
                              • Oct 2011
                              • 6458
                              • Australia

                              #15
                              Re: Panasonic TX-P42S30B - 6 blinks

                              Originally posted by MikeFloutier
                              Thanks, it was ribbon cables A > SN, A > C x2
                              So I was looking at the guide for a ST series and it suggests with the 3 white ribbons disconnected from the A it should turn on and stay on, black screen

                              But you say this gives 6 blink and if you do this test again with the new board is it 6 blink?

                              Try this, remove those 3 ribbons at the A board, disconnect SN2, SS11 and P35 and try again and tell me what happens.

                              Don't reconnect for 5 mins especially p35 or you can spike the boards and panel. P35 is the main concern

                              Comment

                              • MikeFloutier
                                Member
                                • May 2015
                                • 42
                                • UK

                                #16
                                Re: Panasonic TX-P42S30B - 6 blinks

                                Thanks, I agree, that's the first step of the ShopJimmy video disconnect those 3 ribbon cables. Black screen/On = SN board failure.

                                Am walking the dog at present, will do the stuff you suggest shortly.

                                Btw, I take it that when testing the 30F131, I should turn off the AC.

                                Comment

                                • tw2005
                                  Badcaps Legend
                                  • Oct 2011
                                  • 6458
                                  • Australia

                                  #17
                                  Re: Panasonic TX-P42S30B - 6 blinks

                                  Originally posted by MikeFloutier
                                  Thanks, I agree, that's the first step of the ShopJimmy video disconnect those 3 ribbon cables. Black screen/On = SN board failure.

                                  Am walking the dog at present, will do the stuff you suggest shortly.

                                  Btw, I take it that when testing the 30F131, I should turn off the AC.
                                  most definitely, nothing on and have it unplugged. you need to be aware of "HOT" side of the PSU or what can kill if it's plugged in and on at the mains!

                                  Comment

                                  • MikeFloutier
                                    Member
                                    • May 2015
                                    • 42
                                    • UK

                                    #18
                                    Re: Panasonic TX-P42S30B - 6 blinks

                                    Thanks, I'll be careful.

                                    Firstly to confirm that I redid the test with new A board with and without it's 3 ribbon cables. Still the same, 6 blinks.

                                    Ok I disconnected the connectors and cables you mentioned.

                                    When I powered on, I got the usual 3 clicks in the power supply followed by 20 blinks (the 20th slightly longer than the rest - followed by a short gap then 6 blinks (the last of which was not technically a blink as it stayed on. Presumably power stayed on as no relay click.

                                    Comment

                                    • tom66
                                      EVs Rule
                                      • Apr 2011
                                      • 32560
                                      • UK

                                      #19
                                      Re: Panasonic TX-P42S30B - 6 blinks

                                      Were the 6 blinks at the end red or green?
                                      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

                                      • tw2005
                                        Badcaps Legend
                                        • Oct 2011
                                        • 6458
                                        • Australia

                                        #20
                                        Re: Panasonic TX-P42S30B - 6 blinks

                                        Originally posted by tom66
                                        Were the 6 blinks at the end red or green?
                                        yeah, this is getting weird. Good question, keep forgetting you guys have the same setup as us. Green - go, red - no go. US just has red

                                        the other thing too, once it goes sos , it just keeps repeating in red the blink code until it's shutdown
                                        Last edited by tw2005; 05-09-2015, 02:43 AM.

                                        Comment

                                        Related Topics

                                        Collapse

                                        • Andre Gilbert
                                          Panasonic TC-P55ST50 8 blinks then no blinks
                                          by Andre Gilbert
                                          Hello! yes I know there is already lots of information about this issue. I have a Panasonic TC-P55ST50 that originally displayed an 8-blink error code. Following the troubleshooting flowchart, I ended up replacing the SS board. However, even after replacing it, the issue persists. The TV turns on and stays on without displaying an image, and continuity is confirmed on all connectors. What am I missing hereπŸ€”?
                                          Ok Im a mechanical engineer ...but I thought I was able to follow a rather simple flowchart for electric troubleshooting πŸ˜‚.

                                          TV Model: Panasonic TC-P55ST50
                                          ...
                                          11-20-2024, 08:52 PM
                                        • Biruslapio
                                          Panasonic P58V11B 8 and 12 blinks error "fix"
                                          by Biruslapio
                                          Bought this TV used not working, panel flashed briefly on power up and it was blinking 8 times, a quick look on SS board revealed a common fault on the 3uF 250V capacitors, C201 to C205 (C1620X in the service manual), the solder joints were all cracked, C201 and C205 pins were darkened and some sparking had occurred on them, C201 was split open and clearly overheated in its last hours, replaced that one and resoldered the others, 8 blinks fixed.

                                          Also the previous owner broke the antenna connector by taking the TV out of the wall mount forgetting to unplug it, I desoldered the tuner...
                                          04-13-2021, 07:13 AM
                                        • jm1234
                                          Panasonic plasma TX-P42ST50 - 6 blinks
                                          by jm1234
                                          Hi,
                                          anyone able to provide the service manual for old plasma Panasonic TX-P42ST50E?
                                          It turns off almost immediately (0~5 seconds after pressing the on/off button) and starts flashing the red diode 6 times.
                                          I disconnected the left-hand side board (SC?, both the ribbon cable and the power cable to it) and also another ribbon going to bottom left board. Then the led signal is 8 flashes. According to service guide to another Panasonic plasma it would mean the left-hand side board is faulty. But I'm not sure it 100% applies to my model.
                                          I checked that board for any obvious faults...
                                          05-22-2024, 06:59 AM
                                        • Alicat
                                          Panasonic Plasma TH-50PZ85U No screen No blinks on red power light
                                          by Alicat
                                          Hello,

                                          Stopped by this site trying to fix my parents Panasonic Plasma TV.

                                          Model number is TH-50PZ85U

                                          Power comes on and the red power light stays on solid.

                                          Did a few checks like hold the power button on for 60 seconds, hold the - Volume while holding the menu button, no luck, still@ blank grey screen as the screen lights up very vague.

                                          I also hear a few clicks.

                                          I also think my parents said there was a thunderstorm and the TV failed after that.

                                          Section 6 in the service manual talks about power and no screen,...
                                          10-30-2024, 10:09 AM
                                        • CrewmanRedShirt
                                          Looking for assistance troubleshooting a Panasonic TC-P65ZT60 with 3 LED Fast Blinks
                                          by CrewmanRedShirt
                                          Hello all,
                                          As the title states, I followed the troubleshooting guide located here: https://www.manualslib.com/manual/23...page=53#manual, which concluded the 'A' board needs to be replaced. Looking around the net and eBay, I see that there are repair services for the board (TNPH1043UE? Not sure if it is a 'UE' as the suffix grid does not appear marked). What additional troubleshooting can be performed to ensure 1) this board is the problem and 2) since there are repair services, what are they fixing on the board?) I expected 3.3V not to be available anywhere...
                                          07-13-2024, 11:02 AM
                                        • Loading...
                                        • No more items.
                                        Working...