Screen dimmer in recent months, weird symptom: EPG screen goes bright! LG 19LD350

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  • Hairspring
    New Member
    • Dec 2022
    • 3
    • United Kingdom
    #1

    Screen dimmer in recent months, weird symptom: EPG screen goes bright! LG 19LD350

    In recent months the screen has been getting more and more dim. If that was all, I'd suppose the problem would be the backlight (LED? LCD?). But I've noticed this really weird symptom: switching to the EPG screen restores normal brightness! And then, even weirder, when I go back to the programme, for a moment the programme is at normal brightness and over the next 1-2 seconds it gradually dims down again.

    Last time I looked in a TV it had EHT flyback, so I'm no expert. I do sometimes repair computer monitors and power supplies, most often when there's bad caps.

    Anyhow, in my ignorance, I thought maybe the fault was due to some problem in the power supply. A replacement board from a salvage company was only a tenner. However, replacing that the fault is still identical.

    It's an LG 19LD350 19" TV. Any suggestions, please?
    Tags: None
    • CapLeaker
      Leaking Member
      • Dec 2014
      • 7999
      • Canada
      #2
      Re: Screen dimmer in recent months, weird symptom: EPG screen goes bright! LG 19LD350

      Is auto dimming turned off?

        Comment

        • Hairspring
          New Member
          • Dec 2022
          • 3
          • United Kingdom
          #3
          Re: Screen dimmer in recent months, weird symptom: EPG screen goes bright! LG 19LD350

          Originally posted by CapLeaker
          Is auto dimming turned off?
          Thanks for following up. I can't recall. It will be 2 or 3 days before I can check, I'll reply then.

            Comment

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