Announcement

Collapse
No announcement yet.

TCL 55S451 Blank screen

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    #61
    You gonna sell a tape TV?

    Comment


      #62
      Originally posted by EazyBone View Post
      You gonna sell a tape TV?
      This one was more or less a proof of concept and personal achievement 😄

      The ones I DO sell I've either replaced power supply components, boards, or most commonly, backlights. On rare occasion I get one that has nothing wrong with it at all.. And those are the ones I can't guarantee anything AT ALL.

      But as far as used TVs go, they're just the same as used cars. You can put a new transmission in a car and sell it but 6 months later a head gasket goes. I may put a new power supply in a TV but I can't guarantee that the backlights won't fail next week. That's why I will honor my work and my customers for a respectable length of time.. but obviously not forever.


      Comment


        #63
        Originally posted by x_orange90_x View Post
        Update:

        I revisited the tape method and successfully found the clock signals, blocked them, and the end result looks great! I can't see any anything wrong with the picture!
        Any pictures available of the working fix? I have the same TV in the same situation, but am unclear on what part of the ribbon cable for the right side I need to tape to attempt a fix.

        Comment


          #64
          Originally posted by amxlink View Post

          Any pictures available of the working fix? I have the same TV in the same situation, but am unclear on what part of the ribbon cable for the right side I need to tape to attempt a fix.
          I don't have a picture of what I did. What I suggest is you find the clock signals yourself and then block them with tape. The way I found them was by looking at the main board and finding the labels near the ribbons. When I found CLK1 thru CLK8 (I believe it was) I followed the trace to the ribbon connector. Using a multimeter in continuity, place one probe on the the pin of the connector and run the other probe along the pins of the opposite side of the ribbon (the end that plugs into the strips on the panel) until you hear a beep. When it beeps you've found where that signal comes out on the other end. All you need to find is 1 and 8 then everything in between those are the remaining signals. Start by putting tape over all 8 and see what happens.

          This is assuming your multimeter BEEPS when continuity is found.

          Comment

          Working...