Panasonic #Th42ph9uk no startup.

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • SEAWOLF
    Senior Member
    • Nov 2011
    • 177
    • Barbados West Indies.
    #1

    Panasonic #Th42ph9uk no startup.

    Panasonic #Th42ph9uk plasma display start up and displays video for a short
    while, and then shuts down and stand by light blinks 7 times.Recently it does
    not power up,or the stand by light is not displayed.Can anyone offer a solution for this problem?
    Tags: None
    • RON_CET
      Badcaps Veteran
      • Jun 2012
      • 217
      • USA
      #2
      Re: Panasonic #Th42ph9uk no startup.

      start your troubleshooting into these area see attached
      Attached Files
      Last edited by RON_CET; 07-22-2012, 03:15 PM.
      Ron Driver,BSEE,CET,ISCET,NESDA

        Comment

        • SEAWOLF
          Senior Member
          • Nov 2011
          • 177
          • Barbados West Indies.
          #3
          Re: Panasonic #Th42ph9uk no startup.

          Originally posted by RON_CET
          start your troubleshooting into these area see attached
          Thank you very much.

            Comment

            • ben7
              Capaholic
              • Jan 2011
              • 4059
              • USA
              #4
              Re: Panasonic #Th42ph9uk no startup.

              Originally posted by SEAWOLF
              Panasonic #Th42ph9uk plasma display start up and displays video for a short
              while, and then shuts down and stand by light blinks 7 times.Recently it does
              not power up,or the stand by light is not displayed.Can anyone offer a solution for this problem?
              Since you say the stand-by light doesn't work now, I would say its a PSU problem. Check for cracked solder joints on the PSU, check the voltage on the mains filter cap (should be about 300v). Also, check to see if the fuse(s) are good.
              Muh-soggy-knee

                Comment

                Previous template Next

                Related Topics

                Collapse
                • DXseekerMO
                  Samsung UN65NU6900FXZA Stand-by light on but voltages on PS indicate TV should be on
                  by DXseekerMO
                  Hello everyone!

                  Tonight I picked up a Samsung UN65NU6900FXZA with a curious issue.

                  Symptoms:

                  1) Plug TV in to AC outlet, stand-by light illuminates briefly and goes out.
                  2) TV does not appear to turn on
                  3) Backlights do not illuminate, voltages associated with backlights on Power Supply are not present
                  4) "Power on" terminal on Power Supply has 3.26v
                  5) "A13V" terminals have 12.9v
                  6) Stand-by test jumper on Power Supply has 12.9V
                  7) Optical audio jack on Main Board illuminates
                  8) With stand-by...
                  06-09-2021, 12:19 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
                  ...
                  1 Photo
                  11-20-2024, 08:52 PM
                • AquaMan Ua
                  Problem with PANASONIC CF53 laptop after changing BIOS settings
                  by AquaMan Ua
                  Hello. I am asking you for a hint on how to solve the problem with my touchbook Panasonic CF53-2 standart model. After setting up the BIOS, the laptop displays the wrong image until Windows loads. (More precisely, it displays, but distorted, instead of the Panasonic image immediately after turning it on, it displays what is in photo #1 in the attached file) Then the image appears when Windows starts loading and then there are no problems with the screen until the reboot. If you enter the BIOS, just a black screen. If you connect an external screen, the image on it is the same as on the built-in...
                  2
                  2 Photos
                  05-17-2025, 09:40 AM
                • FriedFred
                  Schenker VIA 15 PRO, PF 4NU1F V1.0, P/N: MBPPF4NU18-F310 - 36mA in stand-by
                  by FriedFred
                  Hello, everyone!
                  I have here a Schenker VIA 15 PRO, with this numbers on the board: PF 4NU1F V1.0 and P/N: MBPPF4NU18-F310 .
                  I took out the memory and the battery and the SSD.

                  So, in stand-by, only the board, takes 36mA. No power-button pressed at all, I can measure 1.8V, 3.3V, 5V. All coils present voltages except the two power rails for the CPU. The CPU is a AMD Ryzen 5 4600H.
                  After pressing the power-button, the current raises to 500mA and the two power rails for the CPU show up with 0.8V.
                  After several seconds, the fans switch-off and the board keeps powered...
                  03-08-2025, 04:45 AM
                • Tynan Dill
                  Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
                  by Tynan Dill
                  I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

                  Upon bringing it home and plugging it up, it showed a standby light.

                  I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

                  The screen seems to blackout and stay black, but with a flashlight I can see the display.

                  With my Playstation 4 connected via HDMI, and running a game I can hear sound.

                  Assuming...
                  ORIGINAL POWER SUPPLY BOARD
                  7 Photos
                  11-22-2024, 01:46 PM
                • Loading...
                • No more items.
                Working...