RCA 46LB45RQ solarization effect

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  • Daveleone
    Badcaps Veteran
    • Apr 2016
    • 267
    • USA
    #1

    RCA 46LB45RQ solarization effect

    Hi all! I have an RCA 46LB45RQ that came to me dead. I replaced the EEPROM on the main board with one I bought off of eBay that matched my set (ver B1). Now I have a picture and audio, but it looks solarized (see attached photo). The solarization affects both the displayed image AND the OSD.

    My question - do you think it's:
    1) A bad t-con?
    2) A misprogrammed replacement EEPROM (maybe programmed for an A1 set?) Can a misprogrammed EEPROM even cause this problem?
    3) A secondary problem with the main board?
    ...AND...
    4) Is there any way to test/confirm whether the problem lies in the t-con or the main board?

    As always, your help is greatly appreciated!
    Thanks,
    --Dave
    Attached Files
    Last edited by Daveleone; 07-09-2018, 10:13 PM.
    Tags: None
    • attainteddragon
      Badcaps Veteran
      • Apr 2013
      • 764
      • australia
      #2
      Re: RCA 46LB45RQ solarization effect

      i don't think that the eeprom (even if wrong) could be to blame.

      on the t-con, test the vgma test points. there will probably be around 20 of them.
      WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?

        Comment

        • dick_barton
          Badcaps Legend
          • Aug 2015
          • 6642
          • Wales
          #3
          Re: RCA 46LB45RQ solarization effect

          It certainly looks like a solarized screen but I would first check in the service menu to make certain it's set up for the led panel fitted in the set.
          Willing to help but I'm no expert.

            Comment

            • Daveleone
              Badcaps Veteran
              • Apr 2016
              • 267
              • USA
              #4
              Re: RCA 46LB45RQ solarization effect

              Originally posted by dick_barton
              It certainly looks like a solarized screen but I would first check in the service menu to make certain it's set up for the led panel fitted in the set.
              This worked! I found this youtube video: https://www.youtube.com/watch?v=pbffKtXjTog
              When I changed the LVDS map setting on my TV from "default" to any 'B' setting (6-bit B, 8-bit B, 10-bit B) the picture cleared right up. Not sure which setting is the correct setting, but I chose "10-bit B" because it sounded the best.

              Thanks so much for the help!
              --Dave
              Last edited by Daveleone; 07-10-2018, 10:15 AM.

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