LG 42" Plasma 42pc30 picture quality issue

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  • Jonesy123
    Member
    • Oct 2013
    • 10
    • canada
    #1

    LG 42" Plasma 42pc30 picture quality issue

    Hello,
    Had a quick question for you bright polite fokes. Picked up a "broken" plasma. Previous owner complained of green picture. I set up tv an over all not too bad. Every thing works properly. Picture isn't super sharp, tiny bit of sparkle, and after of an hour a slight bit of green around I objects. Barly noticeable. If I wasn't looking for it I probably would not have seen it.
    So I checked some values on the power supplie. Va and vs matched sticker on panel va 60, vs 186 but there was a second sticker with higher max number va 65 and vs 195. One thing I did notice is the sticker says 5.2 vdc and I only read 4.9vdc. I see adjustments for va, vs, and 3.3 but not 5vdc . So I guess my actual question is, the panel was build in 06 is this just the nature of the beast and the picture quality is what it is, or can I tweak anything.
    I tryed getting into the service menu, I got in twice and it wouldn't let me back in for some reason. I pressed menu on remote and tv same time for 10 sec. Any input would be great. Thank you for your time. Jonesy
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: LG 42" Plasma 42pc30 picture quality issue

      Always use the sticker with the five other ratings printed on it - the MAX are a "damage threshold" which should not be exceeded.

      You have the common LG sparklies issue. It's fixable, but it's a bit of work. You need to get the control board flashed with new firmware to fix the issue. Unfortunately it can only be done with the special jig provided by LG costing around $150 to $200. A nice member on here by the name of capkid flashes these for about $25, which is a fair price IMO. You should contact him:
      https://www.badcaps.net/forum/showthread.php?t=29263
      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

        • Jonesy123
          Member
          • Oct 2013
          • 10
          • canada
          #3
          Re: LG 42" Plasma 42pc30 picture quality issue

          Thank you for the fast response Tom66 I appreciate it! Would the firmware also cause the slight green around objects? And one more quick thing... The 5vdc is listed as 5.2 on every thing but I only measure 4.9 is that any concern or acceptable? Also I read a few things about some dc-dc converters on the sustain boards, do these ever require tweaking or is it uncommon to play with thos values? Thanks for the input appreciate it! Decided to play with some Tv's as a past time.

            Comment

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