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    #1

    LG LED - need help with diffuser order after reassembly

    model: LG 50LN5100

    backstory: picked up tv at local dump and diagnosed unit to have a bad led strip. unit was apart for 3 months before i got around to repairing it.

    problem: i cannot recall the order of placement for the diffuser panels.. the way i assembled it the screen is dark and has a poor viewing angle..

    does anyone have any insight as to the order? im so mad at myself for this gaff. i have never gone panel deep to repair a tv before and didnt take into consideration the importance of the order

    thanks a lot
    Tags: None
    #2
    Re: LG LED - need help with diffuser order after reassembly

    I wish I could help you, bud. I just repaired a 50LN5300 but I removed the back off the panel instead of the other way round so I wouldn't run into this problem.

    Some here have insight into the different layers and will be able to help you.

    Comment

      #3
      Re: LG LED - need help with diffuser order after reassembly

      Can you get hold of another set from the local disposal and break it down to see how they have stacked the diffuser etc.
      Willing to help but I'm no expert.

      Comment

        #4
        Re: LG LED - need help with diffuser order after reassembly

        in general all LED backlight. direct LED the first plate will have one micro lens surface and other side mat. lens surface should be down faced LED

        side or up down led panel sets first plate will have white reflection white type clues / color on the opposite side of the strips. also mat side always on the top forward LCD

        other layer are color filter will be amount regards to side wholes,, never missing úp

        Comment

          #5
          Re: LG LED - need help with diffuser order after reassembly

          Originally posted by dick_barton View Post
          can you get hold of another set from the local disposal and break it down to see how they have stacked the diffuser etc.
          +1
          Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

          https://www.facebook.com/Telford-Tel...7894576335359/

          Comment

            #6
            Re: LG LED - need help with diffuser order after reassembly

            Did you get an answer to this? I just replaced the LED's in my LG 50LN5100 and I may be able to help.

            Comment

              #7
              Re: LG LED - need help with diffuser order after reassembly

              I have the white spot issue where the plastic reflector has fallen off of the LED. Since my TV is out of warranty, I disassembled it to glue the fallen reflectors back into place. Unfortunately, I did not note what order and orientation the hard plastic and 3 flexible diffuser sheets go in for re-assembly. What is the correct order? I know the hard plastic goes first, but does the smooth side or the textured side face the reflectors? After that, which sheets go in which order? Thank you!
              Last edited by daffsters; 02-04-2018, 10:27 AM.

              Comment

                #8
                Re: LG LED - need help with diffuser order after reassembly

                There is this video that has a shinny sheet between the two opaque sheets
                htps://www.youtube.com/watch?v=059mF4cyqBU
                and then this one that says the thick sheet that has the bumps facing the 3 diffuser sheets (opposite the led's)
                https://www.youtube.com/watch?v=rZKjs51k2GY

                Comment

                  #9
                  Re: LG LED - need help with diffuser order after reassembly

                  Here's the order.

                  The 2 clear sheets in the middle could be reversed which would cause the problem.

                  The LCD panel in that pic is on the opposite side thou. The sheet nearest the LCD panel in that pic should be the one right above the backlights then consecutively inline with my picture.
                  Attached Files
                  Last edited by freakaftr8; 02-04-2018, 09:26 PM.
                  Did I leave the soldering iron on?

                  Comment

                    #10
                    Re: LG LED - need help with diffuser order after reassembly

                    Thank you for the replies. There seem to be 2 similar "shiny" sheets that go in between the hard plastic and the top sheet. They have different sized tabs on the side with one being wider and the other being the same width as the tab of the top sheet. Does it matter what order these go in? Right now, I have the hard plastic on top of the LEDs with bumpy side facing up, then the shiny with the wider side tab, followed by the shiny with the skinnier side tab and lastly, the non-shiny sheet.
                    Last edited by daffsters; 02-05-2018, 11:36 AM.

                    Comment

                      #11
                      Re: LG LED - need help with diffuser order after reassembly

                      I'll look again tonight since the LG I'm working on is still apart for LED repairs.
                      Did I leave the soldering iron on?

                      Comment

                        #12
                        Re: LG LED - need help with diffuser order after reassembly

                        Hello I have not been on here in a long time. I was curious if this was ever solved because I have the same problem. I have a LG 50UH5500/5530 and for got the order of the diffusers. I should have taped them like I saw in the vid posted but I didn't realize there would be this much time between disassembly and assembly. Thanks for any help. Jim

                        Comment

                          #13
                          Re: LG LED - need help with diffuser order after reassembly

                          I had asked the same question and got NADA in replies, but this YouTube helped me out..

                          https://www.youtube.com/watch?v=7z7lXrI1vbs&t=65s

                          I think the larger sets have these edge cut-outs to help direction and not order, so the notches have to line-up.

                          Hope it helps,

                          Martin

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