westinghouse dwm50f3g1 powers up with no picture

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • engelwood39
    Senior Member
    • Mar 2015
    • 93
    • United States

    #21
    Re: westinghouse dwm50f3g1 powers up with no picture

    Okay, got the new T-Con board and put it in. turned the unit on and the Westinghouse emblem came up... However it was a static hum about 1 second long and then 1 second no hum then the hum again for a second. Every time it made the sound there were horizontal lines through the emblem on the picture. I quickly turned it off and made sure all connections were tight (which they were) and tried it again. Nothing! It is now back to a dark dim lit blank screen? Any ideas?

    Comment

    • engelwood39
      Senior Member
      • Mar 2015
      • 93
      • United States

      #22
      Re: westinghouse dwm50f3g1 powers up with no picture

      Maybe it would be better described as an electrical hum. It was coming from a component on the T-con board I am pretty sure.

      Comment

      • engelwood39
        Senior Member
        • Mar 2015
        • 93
        • United States

        #23
        Re: westinghouse dwm50f3g1 powers up with no picture

        Any suggestions at all? Would a main board replacement be worth a try?

        Comment

        • dskall
          Badcaps Legend
          • Oct 2016
          • 2905
          • usa

          #24
          Re: westinghouse dwm50f3g1 powers up with no picture

          I think you have problem on panel side that blew out your t-con
          I assume no responsibility for any stupid suggestions I might post.

          Comment

          • CapLeaker
            Leaking Member
            • Dec 2014
            • 7988
            • Canada

            #25
            Re: westinghouse dwm50f3g1 powers up with no picture

            A replacement main board wouldn't change that. I think you got a bad panel.

            Comment

            • dskall
              Badcaps Legend
              • Oct 2016
              • 2905
              • usa

              #26
              Re: westinghouse dwm50f3g1 powers up with no picture

              Originally posted by budm
              I believe the IC U209 AUO-P301-16 is the one that produces the VGH, VGL Voltages similar to the TI chip. I need find the spec sheet for to verify, so far I cannot locate the VGH point, it should be in that area.

              http://wenku.baidu.com/view/72d64d2f...950e73832.html
              budm I think VGH is pin 22, VGL looks to be in lower left corner
              I assume no responsibility for any stupid suggestions I might post.

              Comment

              • engelwood39
                Senior Member
                • Mar 2015
                • 93
                • United States

                #27
                Re: westinghouse dwm50f3g1 powers up with no picture

                So, time to call it quits and junk this TV!???

                [TV]

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA

                  #28
                  Re: westinghouse dwm50f3g1 powers up with no picture

                  At this point it looks like the panel took out your new T-CON board.
                  Never stop learning
                  Basic LCD TV and Monitor troubleshooting guides.
                  http://www.badcaps.net/forum/showthr...956#post305956

                  Voltage Regulator (LDO) testing:
                  http://www.badcaps.net/forum/showthr...999#post300999

                  Inverter testing using old CFL:
                  http://www.badcaps.net/forum/showthr...er+testing+cfl

                  Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                  http://s807.photobucket.com/user/budm/library/

                  TV Factory reset codes listing:
                  http://www.badcaps.net/forum/showthread.php?t=24809

                  Comment

                  • CapLeaker
                    Leaking Member
                    • Dec 2014
                    • 7988
                    • Canada

                    #29
                    Re: westinghouse dwm50f3g1 powers up with no picture

                    Originally posted by engelwood39
                    So, time to call it quits and junk this TV!???

                    [TV]
                    unfortunately yes.

                    Comment

                    Related Topics

                    Collapse

                    • sergio_av
                      Acer Aspire E5-571G-52NH powers on, no picture. PCH_ENVDD goes off and on.
                      by sergio_av
                      Hi, I'm unexperienced with troubleshooting and I'm not sure how to proceed with this laptop.
                      Motherboard is A5WAH LA-B991P I think, i5-5200U and nvidia 820m.

                      When I received the laptop, CMOS battery had 0V. I took it out and all the testing has been done without a CMOS battery and without the main battery plugged in, I haven't been able to see physical damage, burnt or missing components with a quick visual inspection, and no shorts were found.
                      Laptop charges the battery, powers on when ON button is pressed when powered from charger and when powered from the battery, but...
                      01-01-2025, 05:27 PM
                    • KYBOSH
                      Trying to Save - LG 60PH6700 60-inch plasma HDTV - Powers ON but no picture
                      by KYBOSH
                      Saved this beast from the landfill this weekend.
                      Manfactured July 2013 in Mexico.

                      I love working on plasma TVs.
                      Its been a while but I was lucky enough to find 2 this week.

                      The TV powers on and stays on but no picture. Havent checked for sound yet.
                      No bulging caps although the insides are pretty dusty and the boards are discolored from many years of high heat.
                      Will start troubleshooting tonight.

                      ...
                      10-17-2024, 01:17 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
                    • 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
                    • TR103
                      Samsung TV model UE50TU: rebooting, backlight, sound, but no picture
                      by TR103
                      Hi, I have a Samsung UE50TU with:
                      - sound and backlight, but no picture
                      - when it arrived, it had a picture for a few seconds
                      - it keeps rebooting
                      - without ribbon cable between the two panel boards, it does not reboot but I have no picture
                      - without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
                      - when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.

                      - without cable between mainboard and lcd panel and with a jumpered...
                      01-22-2025, 04:12 PM
                    • Loading...
                    • No more items.
                    Working...