Panasonic TH-C50HD18 no picture

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • 73buick
    Member
    • Mar 2011
    • 41
    • USA
    #1

    Panasonic TH-C50HD18 no picture

    Client brought in this TV, it got hit w/a lightning surge. When you plug it, relays click. Hit power button, more relay clicking, but nothing on screen. The red power led is steady on and both green leds on the SC and SS boards are steady lit. Initial check of the Vsus, Ve, etc are all within parameters according to the service manual I have.

    What should I test for next? I am assuming one of the smaller boards is bad?
    Tags: None
    • tw2005
      Badcaps Legend
      • Oct 2011
      • 6458
      • Australia
      #2
      Re: Panasonic TH-C50HD18 no picture

      sounds like mainboard. If it's powering up and the sustain boards are running then mainboard .

        Comment

        Previous template Next

        Related Topics

        Collapse
        • FZG
          Panasonic AG-1000B VHS player with bad picture quality
          by FZG
          Hello!

          I recently got an old VHS player from Panasonic and just for fun I want to try to repair this device. It is an AG-1000B portable VHS player from 1990 and it has a problem with picture quality in playback mode.

          Picture in playback mode is very noisy and often loses sync but the still images are nearly perfect.

          I want to know, is this something that could be solved by recapping or is the video head likely gone?

          Also, what mechanism is this?

          Any feedback is appreciated!...
          05-06-2024, 07:16 AM
        • Bazfletch3
          Panasonic TH-65FX800A backlight LED's working but picture is very dark
          by Bazfletch3
          Hi all

          While I have quite a decent background in electrical & electronic troubleshooting & repairs, this is my first time stripping down an LCD TV for repair.... I have inherited a 3yr old Panasonic LCD which has a picture, but it is quite dark (too dark to be watchable - but still quite easy to see; I didnt need a torch to see it).

          I started by checking and trying to adjust all of the picture and backlighting levels, but that made little to no difference. I also did a factory reset.

          From there I envisaged that the backlighting wasn't working, however...
          01-08-2024, 10:18 PM
        • Tr0ll
          T-con suspect issue. Both ribbon cables no picture. One ribbon cable ok. (58pus8545)
          by Tr0ll
          Hi guys! I realized you have a lot of knowledge here so i am hoping you could point me in right direction with my odd issue.

          The Tv is a Philips 58PUS8545/12, it had no picture but working backlights.

          Original T-con:
          Opened the Tv and tested to unplug one ribbon cable at a time. With this test i could see that i got fine picture on both halves as long as there was only one ribbon cable connected, with two connected picture were gone.

          First replacement T-con:

          I thought it might be t-con and ordered new t-con from china(supposedly tested)...
          10-07-2023, 07:48 PM
        • Buzztv
          Panasonic TC-P42S60 Plasma,how to check Vsus
          by Buzztv
          Hi,
          This is my first post in attempting to keep my beloved 2013 Panasonic plasma tv going.
          About 6 weeks ago the tv was turned on but then immediately shut off. There was no recent power surge or popping noise or any other symptom.
          I checked all of the obvious things and decided to try a replacement power supply board (PSS in Panasonic lingo).
          I would like to check the Vsus but this is one of the final models and at that point Panasonic did not indicate the Vsus and Vad voltages inside the chassis. It looks like they were discouraging people from making adjustments....
          10-27-2019, 01:24 PM
        • JJAAMM
          SAMSUNG UN55KS9000F picture fades then distorts into vertical lines after 20 seconds
          by JJAAMM
          This was my main TV for the last 6 years. I'm not inclined to throw out a $2600 TV so quickly so I'm trying to investigate the issue.

          Problem
          TV was disconnected from power for 6 months during construction. When I plugged it yesterday picture was fine, after 30 seconds it dimmed then started developing horizontal lines, picture then starts to ghost vertically until it degrades into vertical streaks. TV always displays a perfect picture when cold. I can unplug TV for 5 minutes and plug it back in and picture is restored for 20 seconds. I can also keep it in standby mode...
          07-06-2023, 06:01 AM
        • Loading...
        • No more items.
        Working...