lg42pq6000 start of red haze?

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  • daphney
    Senior Member
    • Feb 2014
    • 93
    • uk

    #1

    lg42pq6000 start of red haze?

    the above tv shows abit of pink /red on bright white backgrounds occansionaly
    is this start of red haze like on lg50ps3000 i have looked inside cleaned all dust out no badcaps if so wat do i need to replace on ysus? or wherever if diff

    thnx for help as always
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: lg42pq6000 start of red haze?

    Is it red on black parts or red on the white part of the scene? If it's on the white I'd increase Vs by up to 10V (increase it slowly until haze disappears then add 1V)
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

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    • ajshoe
      ajshoe
      • Dec 2012
      • 477
      • usa

      #3
      Re: lg42pq6000 start of red haze?

      how about a pic ???

      Comment

      • daphney
        Senior Member
        • Feb 2014
        • 93
        • uk

        #4
        Re: lg42pq6000 start of red haze?

        its red on white & only very occasionally so cant do pic only noticed 3 times yesterday with 12hrs on was bright white from explosion on films or should i just wait n see if gets worse?
        thnx as always

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: lg42pq6000 start of red haze?

          Originally posted by daphney
          its red on white & only very occasionally so cant do pic only noticed 3 times yesterday with 12hrs on was bright white from explosion on films or should i just wait n see if gets worse?
          thnx as always
          No, you should adjust it before it gets worse, that sounds like low Vsus.
          Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
          For service manual, schematic, boardview (board view), datasheet, cad - use our search.

          Comment

          • daphney
            Senior Member
            • Feb 2014
            • 93
            • uk

            #6
            Re: lg42pq6000 start of red haze?

            i did this today & vs was on 197 turned up slowly to 207 & back down & up again is now on 207 no difference do u think panel is dying ?
            thnx as always

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK

              #7
              Re: lg42pq6000 start of red haze?

              Was that measured under load, with TV displaying full white? (You can hook up a laptop/computer to the TV then use MS Paint to draw different colours in full screen)
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

              Comment

              • daphney
                Senior Member
                • Feb 2014
                • 93
                • uk

                #8
                Re: lg42pq6000 start of red haze?

                i did that today as u surgested with paint was still 207v last pic is where i measurin volts on wire into board from ps & adjustin on ps 2nd from last pic hopefully u can see wat i mean in pics yellow shows prob best
                thnx as always
                Attached Files

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK

                  #9
                  Re: lg42pq6000 start of red haze?

                  Ok, I'd set Vs to 202V
                  Increase Vzbias by 10V.
                  Increase -Vy by 10V (make it 10V more negative)

                  Any difference?
                  Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                  For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                  Comment

                  • daphney
                    Senior Member
                    • Feb 2014
                    • 93
                    • uk

                    #10
                    Re: lg42pq6000 start of red haze?

                    did that today & edges of screen look sharper however i get 2 bits in middle of screen with red /pink pixels if i put on sport or game setting for picture this is reduced alot but are still there on some programmes countdown didnt notice at all
                    thnx as always

                    Comment

                    • daphney
                      Senior Member
                      • Feb 2014
                      • 93
                      • uk

                      #11
                      Re: lg42pq6000 start of red haze?

                      pic1 middle to right of screen pic 2 left of middle
                      Attached Files

                      Comment

                      • tom66
                        EVs Rule
                        • Apr 2011
                        • 32560
                        • UK

                        #12
                        Re: lg42pq6000 start of red haze?

                        Try fiddling with the SET-UP and SET-DN controls. I'd start with the SET-DN control. Record original positions with a marker pen or camera photo.

                        When I had a 42PQ3000 in for repair, I thought the picture was rubbish when I fired it up... Too dim, and black level too damn high. One of the worst plasmas I've seen - a real shame to be honest!
                        Last edited by tom66; 12-03-2014, 10:23 AM.
                        Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                        For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                        Comment

                        • daphney
                          Senior Member
                          • Feb 2014
                          • 93
                          • uk

                          #13
                          Re: lg42pq6000 start of red haze?

                          did that today & didnt really gain much so i adjusted vzbias & pink blobs in center have gone but picture is abit sparkly alot lot better than at start but sharpness has gone
                          thnx as always
                          wouldnt have got anywhere without u help

                          Comment

                          • daphney
                            Senior Member
                            • Feb 2014
                            • 93
                            • uk

                            #14
                            Re: lg42pq6000 start of red haze?

                            mite have been vy was on ysus board i put back on to watch

                            Comment

                            • daphney
                              Senior Member
                              • Feb 2014
                              • 93
                              • uk

                              #15
                              Re: lg42pq6000 start of red haze?

                              seems to have settled now & im happy with pic a BIG thnx for all your help & advice

                              Comment

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