Panasonic TX-P50VT50E completely dead!

Collapse
X
Collapse
 
  • Page of 4
  • Time
  • Show
Clear All
new posts
Previous 1 2 3 4 template Next
  • Moreno83
    Badcaps Legend
    • Jun 2014
    • 2008
    • The Netherlands
    #61
    Re: Panasonic TX-P50VT50E completely dead!

    Was thinking the same!

    Is the service manual for this TV.

    Check the manual and search for EV5V! My voltage stops after Q2001 , so voltage never reaches Q2002/2004 and thats why i don't have STB5V on the mainboard.
    I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

      Comment

      • Moreno83
        Badcaps Legend
        • Jun 2014
        • 2008
        • The Netherlands
        #62
        Re: Panasonic TX-P50VT50E completely dead!

        Going to install a ST50 mainboard in this VT set. ( temporary deu to no boards available in NL. )
        I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

          Comment

          • Moreno83
            Badcaps Legend
            • Jun 2014
            • 2008
            • The Netherlands
            #63
            Re: Panasonic TX-P50VT50E completely dead!

            Tv is working with the ST mainboard so it was definately a mainboard problem. Mainboard from these tv's turns on the 5vSTB.

            Will look for a cheap VT mainboard but already liking the picture. Little sparkles but will fix that tomorrow.

            Thx for all the help Tom/Tw2005
            I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

              Comment

              • AndyA
                New Member
                • Feb 2017
                • 3
                • Austria
                #64
                Re: Panasonic TX-P50VT50E completely dead!

                I don't know if anyone is reading this thread, though, but I still try.

                I was watching the TV, when a few distorted vertical lines appeard in the picture, and in next to no time picture was gone and a relay started to click. Ever since it only does that when I power on the set.

                My problem is only that much different, that the power relay clicks to and from, about 1 sec each cycle, turning on and off the TV apparently, power LED blinking quick between the clicks like 6-7 flashes (too quick to be able to count exactly). No red flashes, only green. Remote is being so far recognized, that green blinking stops for a blink of an eye when I press any buttons on it.

                I can turn off TV with the power button on the right hand side, it reacts to that, but none of the service modes, i.e. button + remote push combinations seem to work.

                I do have voltage tester, oscilloscope, soldering iron and like stuff, which I can and are willing to use, but no background in repairing electronics. :-)

                Any help is much appreciated.

                  Comment

                  • marekk
                    Member
                    • Mar 2013
                    • 35
                    • UK
                    #65
                    Re: Panasonic TX-P50VT50E completely dead!

                    If lines were vertical it means more then likely your main av card died.
                    It's very hard to find item.

                      Comment

                      • zagallo
                        New Member
                        • Oct 2018
                        • 2
                        • tunisia
                        #66
                        Re: Panasonic TX-P50VT50E completely dead!

                        sorry guys i'm new in this forum please can anyone help me and provide me the dump of PANASONIC TX-47ASW804
                        thanks in advance

                          Comment

                          • AndyA
                            New Member
                            • Feb 2017
                            • 3
                            • Austria
                            #67
                            Re: Panasonic TX-P50VT50E completely dead!

                            Originally posted by marekk
                            If lines were vertical it means more then likely your main av card died.
                            It's very hard to find item.
                            But could it cause this turn on-turn off routine, relay clicking, etc.?

                              Comment

                              Previous 1 2 3 4 template Next

                              Related Topics

                              Collapse
                              • max-power
                                Dell E6540 laptop completely dead after dssasembly
                                by max-power
                                Hi, I disassemble my laptop to replace the speakers, to access them, you have to remove everything including the heat sink and fan, unscrew the motherboard, lift it up a bit to access the speaker wire.
                                that was not the first time I dissasemble it, i did replace the same speaker a few year ago and I repaste it last year, so I had nothing to worry about. but when I put everything back together, its completely dead.

                                After a bit of investigating, i found one pin of the status led ribbon cable that was unglued from the cable and bend touching another pin, I bend it back at his place...
                                03-24-2025, 08:49 AM
                              • wangbreeze
                                T480s random shutoff and then completely dead
                                by wangbreeze
                                Hello Gurus,

                                I got a ThinkPad T480s. It was running fine but suddenly started random shut down. When it turned off, I had to push the reset pin to bring it back to life. But it got aggressively worse and became completely dead. No charging light, no life.

                                I did some initial diagnostics with just the board (no battery, nothing attached, and no CMOS battery as well)

                                Initial testing of the coil resistance seems to indicate no dead short. The only low resistance I measured was at PL701. It reads 38 ohms.
                                charger gave - 20V - ok

                                U101B
                                ...
                                02-03-2024, 04:57 PM
                              • thedirekter
                                A1990 Dead, Odd Voltages on USB-C, Nothing on AWAKE's
                                by thedirekter
                                Hey all,

                                Been lurking for a while to find a solution to my dead A1990 (board # 820-01326-05, I can't find a bv for that one so I've been using 820-01041 for reference) but have come up empty handed. I haven't really done any diagnostics on electronics like this though so I'm sure I've probably missed something. I've soldered and diagnosed keyboards and cars but this is definitely new to me.

                                My overview thus far:

                                After browsing the web one night, I closed the lid while it was on the charger, left it on my desk overnight and it was dead in the morning. No response...
                                01-02-2024, 11:32 AM
                              • pavski
                                Completely dead MSI z490 tomahawk
                                by pavski
                                Trying to troubleshoot MSI z490 tomahawk board and would appreciate your help. The board is completely dead and shows no activity when the power button is pressed.

                                I have tried to look at the Superio, the PSIN signal seems to be correct (goes from 3.3V to 0 on button press) but the voltage on PSOUT pin is quite low. I

                                t is only 0.8V which seems to be incorrect but goes to 0 when the button is pressed.

                                Can you please let me know if this is indeed incorrect and what else should I look at next?

                                Thanks!
                                06-02-2024, 02:42 PM
                              • Andreasbest
                                Lenovo Thinkpad T14s completely dead.
                                by Andreasbest
                                Hello.
                                I received a T14s Gen1 ( NM-C891 motherboard ) that is completely dead, no indication of life at all.
                                I tried hard reset without RTC battery and short both pins of it for 1 minute but no luck.
                                Since it's type C connector i have no idea what to measure or where to inject voltage, so any advice are welcomed
                                Thank you in advance!


                                Schematic & boardview -> https://www.badcaps.net/forum/troubl...cfc-nm-c891-sc...
                                03-19-2024, 03:18 AM
                              • Loading...
                              • No more items.
                              Working...