Panasonic TH-46PZ80U

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Notor
    New Member
    • Apr 2013
    • 6
    • USA

    #1

    Panasonic TH-46PZ80U

    Hello, first post here.

    I've had my Panasonic since 2009. It operated perfectly until about 2 weeks ago, when it wouldn't turn on suddenly and gave me the 10 red blinks issue. I unplugged all inputs, unplugged the TV, and the next morning plugged everything back in and it worked perfectly.

    However, today it won't turn on and is giving me the 2 red blinks error. I have no idea how to fix this issue, and am pretty distressed as I don't have the money to pay someone to fix it, and the TV is only 4 years old. I haven't tried to contact Panasonic but I'm sure the TV is out of warranty.

    Can anyone help me with this 2 red blink issue? It started with 10 but now it's only showing the 2 red blinks. I have some experience with assembling computers but no experience in electronics repair or replacing caps or anything like that (i've tried to scan some threads). I don't really have any tools at my disposal outside of a screwdriver. Any help you guys could offer would be really appreciated, because if I can't fix it myself I don't see how I can get it fixed.
  • capkid
    Badcaps Legend
    • Oct 2010
    • 1339
    • United States

    #2
    Re: Panasonic TH-46PZ80U

    My TH-50PZ80U had a similar issue a few years ago. It took me a month of off-and-on testing to drill down to the cause, which coincidentally is shown in this video that includes the repair: http://www.youtube.com/watch?v=LjpGKaBt8hg

    When I did this repair, I did not replace the TEA1611 chip. I just replaced the capacitor. My TV has been working flawlessly for about 2 years. I can't guarantee that this will resolve your issue, but it's likely.
    Last edited by capkid; 04-24-2013, 01:34 AM.
    LG Plasma Mal-Discharge Correction Service

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #3
      Re: Panasonic TH-46PZ80U

      2 blink and 10 blink are caused by one of the ceramic caps on those boards failing -- but replace both for reliability. SMD electrolytics work good.
      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

      • Notor
        New Member
        • Apr 2013
        • 6
        • USA

        #4
        Re: Panasonic TH-46PZ80U

        Can anyone suggest caps or point me in the right direction? I'm open to fixing the issue but like I said I have 0 experience in electronics/TV repair. A link to a thread or a link to what I need to get would be much appreciated.

        Thanks a lot guys.

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: Panasonic TH-46PZ80U

          Norcal's video, linked above, will guide you through the repair. Watch it all the way through as he talks about all parts of the repair. It is not necessary to replace the TEA chip in the vast majority of cases, so replace the cap only for now.
          http://www.youtube.com/watch?v=LjpGKaBt8hg
          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

          • capkid
            Badcaps Legend
            • Oct 2010
            • 1339
            • United States

            #6
            Re: Panasonic TH-46PZ80U

            Originally posted by Notor
            Can anyone suggest caps or point me in the right direction? I'm open to fixing the issue but like I said I have 0 experience in electronics/TV repair. A link to a thread or a link to what I need to get would be much appreciated.

            Thanks a lot guys.
            Yeah, I linked to the same video that Tom did in an earlier post. I'm not sure what else to tell you. If you have zero experience, you might have to seek out someone to do the repair for you. The repair isn't too terribly difficult, but you could damage the small module if you're not careful; those modules are hard to find, and they're pricey if you do find one. Do you have any friends with electronics experience that like beer? :-) Maybe a local repair shop can do it cheaply, since we've already pointed you in the suspected right direction.
            Last edited by capkid; 04-25-2013, 06:17 PM.
            LG Plasma Mal-Discharge Correction Service

            Comment

            • Notor
              New Member
              • Apr 2013
              • 6
              • USA

              #7
              Re: Panasonic TH-46PZ80U

              Anyone have a recommendation as far as what solderer to use? Also, just so I'm clear, I need two TEA1611 chips and 2 ceramic capacitors to make this repair?

              What is the exact capacitor for this repair and where can I find it? Any help would be much appreciated, I've been TV-less for like 5 months now and I really want to play GTA V

              Comment

              • capkid
                Badcaps Legend
                • Oct 2010
                • 1339
                • United States

                #8
                Re: Panasonic TH-46PZ80U

                If you've never used a soldering iron, and you're at all hesitant, I'd find someone to do it for you. Again, if you damage one of the MC modules, it's most likely game over and you'll have to buy a replacement PSU.

                http://www.ebay.com/sch/i.html?_saca...t&LH_PrefLoc=1

                I used ceramics once, then I switched to electrolytic caps on the next two Panasonics I worked. The caps are 1uF/50V.

                Did you watch the video to familiarize yourself with the process?

                (1) I use a cheap Xytronic temp-controlled soldering iron with a chisel tip; a Radio Shack iron might be fine for this job
                (2) 60/40 rosin-core solder
                (3) Flux pen
                (4) Solder sucker or some other solder removal tool to remove the MC modules from the board.
                Last edited by capkid; 09-25-2013, 10:17 PM.
                LG Plasma Mal-Discharge Correction Service

                Comment

                • Notor
                  New Member
                  • Apr 2013
                  • 6
                  • USA

                  #9
                  Re: Panasonic TH-46PZ80U

                  Yes, I watched all the video. I did the air can/refrigerant diagnostic, the TV powered up after I used the refrigerant on the TEA1611 chip that is more toward the left side of the PSU. It was giving the 2 blink/10 blink error code beforehand. I used the refrigerant on one chip, attempted power up, and waited 15 minutes and did the other one. The TV only turned on after I used the refrigerant on the chip located more toward the left.

                  I have never soldered before but I feel like this is a good learning experience and I'd prefer to attempt it myself. Any tips would really be appreciated, I feel like I've watched that guy solder 10 times and he makes it look so effortless.

                  Comment

                  • capkid
                    Badcaps Legend
                    • Oct 2010
                    • 1339
                    • United States

                    #10
                    Re: Panasonic TH-46PZ80U

                    Ok, cool. I'd change out both chips and both caps to prevent having to open the TV later. The chips and caps are cheap. Like I mentioned earlier, though, I only replaced the cap on the MC301 module, and my TV's been working fine for over two years.

                    (1) Through-hole solder removal: First, you'll need to remove the MC modules from the board. I'd remove and work on one at a time to avoid confusing them. This is where the solder sucking device or wick comes into play:

                    http://www.youtube.com/watch?v=CuH3dWHipKI

                    http://www.youtube.com/watch?v=hQFpYN2FPN0

                    (2) You're going to be doing strictly surface mount soldering on the MC modules. I used my hot air station to remove the chip, but the method Norcal715 used works great, too. You'll need to make sure the TEA1611T chip is aligned correctly and avoid bridging the pins with solder when you install it. Also, flux is a must: http://www.youtube.com/watch?v=3NN7UGWYmBY. Installing the cap can be a bit tricky - just avoid heating the small cap pads on the module too much, and try to avoid touching components that are close by with the iron.

                    (3) Installing the module on the PSU after completing the chip and cap replacement: http://www.youtube.com/watch?v=4oyJYZRRU8c. I had to put something under the module when I had the board turned over to prop it up so that it wouldn't fall as I was soldering at least the first pin.
                    Last edited by capkid; 09-26-2013, 01:15 PM.
                    LG Plasma Mal-Discharge Correction Service

                    Comment

                    • Notor
                      New Member
                      • Apr 2013
                      • 6
                      • USA

                      #11
                      Re: Panasonic TH-46PZ80U

                      I am going to attempt the fix tomorrow. Is a solder sucker or a wick easier to use for the purpose of removing the modules?

                      Thanks

                      Comment

                      • tom66
                        EVs Rule
                        • Apr 2011
                        • 32560
                        • UK

                        #12
                        Re: Panasonic TH-46PZ80U

                        Wick - by far.
                        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

                        • Notor
                          New Member
                          • Apr 2013
                          • 6
                          • USA

                          #13
                          Re: Panasonic TH-46PZ80U

                          Thanks for all your help guys, I completed the repair and my TV is up and running. Fans sound a bit odd though, like a bit of a muffly whining sound, very quiet, any thoughts?

                          TVs been off for so long I don't know if that's normal or not, other than that it's working as intended. Thanks again.

                          Comment

                          • tom66
                            EVs Rule
                            • Apr 2011
                            • 32560
                            • UK

                            #14
                            Re: Panasonic TH-46PZ80U

                            Originally posted by Notor
                            Thanks for all your help guys, I completed the repair and my TV is up and running. Fans sound a bit odd though, like a bit of a muffly whining sound, very quiet, any thoughts?

                            TVs been off for so long I don't know if that's normal or not, other than that it's working as intended. Thanks again.
                            Do you smoke cigarettes (around the TV?) I had the same problem until I found that the cigarette gunk had built up in the fans. Cleaned that out and they ran smooth. Now I know why I don't smoke. Awful stuff.
                            Last edited by tom66; 10-18-2013, 03:51 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

                            • capkid
                              Badcaps Legend
                              • Oct 2010
                              • 1339
                              • United States

                              #15
                              Re: Panasonic TH-46PZ80U

                              Nice job. I'm glad you were able to get it running again.
                              LG Plasma Mal-Discharge Correction Service

                              Comment

                              • bluto
                                Badcaps Veteran
                                • Oct 2007
                                • 557

                                #16
                                Re: Panasonic TH-46PZ80U

                                Does anyone know the if there are polarity issues when replacing the ceramic SMD caps with electrolytics? Since ceramic are not polarized and 'lytics are... I am sure that it matters which direction you install them. I have never been able to verify this and I really need to replace mine before the TV craps out.

                                Comment

                                • capkid
                                  Badcaps Legend
                                  • Oct 2010
                                  • 1339
                                  • United States

                                  #17
                                  Re: Panasonic TH-46PZ80U

                                  Originally posted by bluto
                                  Does anyone know the if there are polarity issues when replacing the ceramic SMD caps with electrolytics? Since ceramic are not polarized and 'lytics are... I am sure that it matters which direction you install them. I have never been able to verify this and I really need to replace mine before the TV craps out.
                                  Yes, the polarity is specific. Watch the video included in this post to see the correct orientation: https://www.badcaps.net/forum/showpo...25&postcount=2
                                  Last edited by capkid; 10-21-2013, 09:08 PM.
                                  LG Plasma Mal-Discharge Correction Service

                                  Comment

                                  Related Topics

                                  Collapse

                                  • Taurus12
                                    Optiplex 3050 micro 2 blinks followed by 3 blinks issue
                                    by Taurus12
                                    Does anyone have an idea of what might be the issue with my 3050 micro? I have tried replacing new cmos battery but still the same

                                    I am not sure if its the powersupply that I'm using is the issue since its the original powersupply. its a laptop powersupply with the same specifications with the 3050 micro so i guess it should be fine.

                                    i also tried replacing the bios but with no avail, everytime i try another bios it gives a different blinking lights

                                    Any recommendation on what I have to do next? Thanks in advance
                                    06-10-2025, 05:05 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
                                  • 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
                                  • Ancient1
                                    I'm stuck . Panasonic TH-L32U20M panel's boards issue
                                    by Ancient1
                                    Hi

                                    The TV seem to start ( blinking green) but goes into blinking red. No display and or backlight. Full view photo.

                                    Actions :

                                    1. Disconnected Panel's Right, 2nd, board : TV comes ON (steady green , no blinking red )
                                    1a. You can see in two photos the B/W screen , fading blue "HDMI12" , and the wierd sides of the image, like an old CRT.
                                    Obviously the fault is from or on the Right, secondary board

                                    2. I taped the Flex tracks, ~2 tracks at a time- see Photo. The issue seems to be on the V lines (Assuming Data...
                                    09-03-2023, 03:51 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
                                  • Loading...
                                  • No more items.
                                  Working...