LG LED - need help with diffuser order after reassembly

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • sandineyez
    New Member
    • Aug 2014
    • 6
    • United States
    #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
    • mmartell
      Badcaps Legend
      • Oct 2013
      • 3189
      • Canada
      #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

        • dick_barton
          Badcaps Legend
          • Aug 2015
          • 6643
          • Wales
          #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

            • Diah
              Badcaps Legend
              • Feb 2013
              • 6395
              • Germany
              #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

                • ReeceyBurger123
                  Never Give Up !
                  • May 2014
                  • 7325
                  • Britain
                  #5
                  Re: LG LED - need help with diffuser order after reassembly

                  Originally posted by dick_barton
                  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

                    • scoostraw
                      New Member
                      • Sep 2016
                      • 1
                      • USA
                      #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

                        • daffsters
                          New Member
                          • Feb 2018
                          • 5
                          • United States
                          #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

                            • R_J
                              Badcaps Legend
                              • Jun 2012
                              • 9552
                              • Canada
                              #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

                                • freakaftr8
                                  Badcaps Legend
                                  • Oct 2012
                                  • 3743
                                  • USA
                                  #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

                                    • daffsters
                                      New Member
                                      • Feb 2018
                                      • 5
                                      • United States
                                      #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

                                        • freakaftr8
                                          Badcaps Legend
                                          • Oct 2012
                                          • 3743
                                          • USA
                                          #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

                                            • redidbull
                                              New Member
                                              • Jan 2019
                                              • 1
                                              • USA
                                              #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

                                                • MAVA
                                                  Member
                                                  • Mar 2018
                                                  • 42
                                                  • USA
                                                  #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

                                                    Comment

                                                    Previous template Next

                                                    Related Topics

                                                    Collapse
                                                    • howardc64
                                                      A1312 (27” iMac 2009-2011) A1407 (Thunderbolt Display) A1316 (Cinema Display) Display Black Screen Repair
                                                      by howardc64
                                                      Problem

                                                      This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached....
                                                      08-04-2024, 10:36 PM
                                                    • V3dran
                                                      Diffuser/LPG for UE50NU7022KXXH
                                                      by V3dran
                                                      Hello,
                                                      I'm trying to repair a UE50NU7022KXXH with a cracked diffuser/lpg and now also with burned leds
                                                      There are 4/5 white spots on the bottom that are not visible since the left side is dark now so I want to change the diffuser/lpg

                                                      Looking the samsung spare parts, I see that there is a DIFFUSER PLATE and a LPG so I'm wondering what is really broken?
                                                      https://www.samsungparts.eu/samsung-...n61-15659a.htm DIFFUSER PLATE 1125x625x2,5mm
                                                      https://www.samsungparts.eu/samsung-...n61-15661a.htm LPG 1101x619x2,7mm...
                                                      06-26-2025, 01:54 AM
                                                    • Lee M.
                                                      LG 55LN5710 backlight diffuser sheet order
                                                      by Lee M.
                                                      Hello all, new member here. I replaced the LED strips and found that the BL can be turned on with the TCON board and LCD panel disconnected. So new LED strips are working fine. Now the problem. There are 3 diffuser sheets on this set. One sheet is thicker than the others and I know it goes in first next to the LED strips. But one side of this sheet has a rougher texture than the other side. Does the rough side go up or down? The 2 thinner sheets have tabs that will only allow them to be installed one way so that's good. One sheet is what I would call plain translucent. The other sheet is whiter...
                                                      11-29-2021, 07:52 PM
                                                    • Ogre262
                                                      SAMSUNG UN60JU7100 - Order of LED light diffuser sheets when re-assembling TV
                                                      by Ogre262
                                                      SAMSUNG UN60JU7100 - Order of LED light diffuser sheets when re-assembling TV


                                                      I recently replaced an LED strip in my SAMSUNG UN60JU7100 TV. I managed to do that with little difficulty.

                                                      My problem is that I did not mark the order of the 3 diffuser sheets that go between the LED lights and the screen.

                                                      There a 3 sheets

                                                      1 thick white opaque plastic (about 1mm) with a smooth side and a rough side

                                                      2 silvery translucent ones about the thickness of card stock
                                                      A. One that is the same on both sides
                                                      B....
                                                      02-10-2019, 03:35 PM
                                                    • linuxrunner
                                                      generic diffuser?
                                                      by linuxrunner
                                                      i have a 65" samsung UN65TU700DFXZA. my kid sprayed cooking oil from a spray/mist bottle onto the screen (2yr old thinking she was cleaning). oil ran down and seeped under the bezel on the bottom of the screen. It appears to have soaked/wicked into the diffuser i have a light colored splotch along the bottom of the screen that grew upwards over a day or two.

                                                      i have not disassembled yet but judging by the way it wicked up it looks like its been absorbed into the diffuser so i don't have a lot of hope of cleaning it.

                                                      i checked Samsung parts site but they don't...
                                                      08-26-2022, 10:52 AM
                                                    • Loading...
                                                    • No more items.
                                                    Working...