Rca l42wd22

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • cequil32
    Senior Member
    • Dec 2012
    • 57
    • United States
    #1

    Rca l42wd22

    I found a RCA L42WD22YX6 tv that is not powering on. When I plug the tv in I get a green light on the front but nothing else happens. I found some bad capacitors on the secondary side of the power supply and replaced all of the capacitors on the secondary side, even the ones that looked ok. However, now I have the power supply when plugged in to the tv continues to click. It almost sounds like it trys to start three times (3 clicks) and then shuts down (4th click). Then is immediately starts with the 3 clicks again and shuts down with the 4th click. I have tried unplugging the master and slave inverters while I tried to power on tv, still get the same clicking sounds. Would I need to replace the capacitors on the primary side of the power supply as well...at least that is where I am leaning towards but wanted to see what you all thought.

    Thanks
    Tags: None
    • cequil32
      Senior Member
      • Dec 2012
      • 57
      • United States
      #2
      Re: Rca l42wd22

      Found out that one of the screws on the heat sink for the diodes was grounding the power supply out...once I fixed this the tv powered right up.

        Comment

        • R_J
          Badcaps Legend
          • Jun 2012
          • 9555
          • Canada
          #3
          Re: Rca l42wd22

          You may wnat to check the capacitors on the inverter boards if you already have'nt, they usually go bad also.

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA
              #4
              Re: Rca l42wd22

              "Found out that one of the screws on the heat sink for the diodes was grounding the power supply out...once I fixed this the tv powered right up." So was it missing the insulator sheet for the Diode or someone use the wrong Diode, the old diode that should have Isolated tab?
              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

                Previous template Next

                Related Topics

                Collapse
                • flibidy
                  Magnum IA.100 Amplifier Switches on, No Output, Possible Input Side fault?
                  by flibidy
                  I have here a Magnum IA.100 which belongs to my parents.



                  The unit powers on & when the relay kicks in, you get a pop from the speakers (this might sound weird but is usual behavior for this amp). However, you get nothing coming through it from any of the inputs & no pops and crackls from any of the controls.


                  Because of the sound from the speaker when the amp turns on I have assumed that the output section probably works but I could be wrong & I'm not sure how to test that side of things further.


                  What Ive done........
                  Magnum IA.100 Front
                  8 Photos
                  01-01-2025, 01:26 PM
                • bouny56
                  Lenovo E15 Nm-c421 usb-c work only in one side
                  by bouny56
                  ​Hello

                  Laptop E15 I5 10gen
                  Mb nm-c421

                  I have a problem with the usb-c power dc.
                  The motherboard start only in one side of the usb-c

                  Replace the usb-c port 2 times same problem

                  With the usb-c meter, one side 20v ok, other side the usb-c meter don't come on

                  Try to test the pin with the Mechanic Tail insertion tester and every pin are ok ?

                  Can the pd controler be the fault ? Or something else maybe ?

                  Thx

                  ...
                  02-11-2025, 03:15 AM
                • howardc64
                  TCL 55S425 few horizontal lines, potential failure on both side of panel/buffer board
                  by howardc64
                  All left and right refers to looking from rear of TV (or looking from front with TV upside down)
                  • TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
                  • Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
                  ...
                  07-24-2025, 05:17 PM
                • Stephen
                  A2442 MacBook Pro 14" Two Left SIDE USB C ports charge but no data
                  by Stephen
                  Right SIDE usb.c port charges and transfers data without issue, two left side uSB c ports charge but do not receive or see data. Was liquid damaged, and repaired significantly and thought we were in the clear but appears this is the last issue that is rearing its head. I am trying to locate the RETIMER chip that communicates the DATA TX/RX but I cannot seem to find it on the schematic or maybe I am just so tired my eyes wore out lol. Any help would be great.
                  05-29-2025, 10:35 AM
                • GRANDGG
                  LG 42lw4500 flashing red light , wight light , 2 clicks
                  by GRANDGG
                  Hi i have an issue with LG 42lw4500 wich after pressing the power button flashes red then goes solid white light 2 clicks and nothing , the weird thing is SOMETIMES if i leave the tv plugged in it would come on and fuction normally (i should mention that vertical rectangle going from the bottom to the top of the screen have some red dot artafacts it only appear in somthing like the tv input menu and any input i give like vga , but not in the system menu , i thought i should mention this , i cannot confirme if the tv had this issue when it was up and running in its previous owner . ) when checking...
                  05-09-2025, 12:27 PM
                • Loading...
                • No more items.
                Working...