Question about Samsung HCL473W 47" Rear Projection Television

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No Raster, but sound works

I've lost picture, but the sound is still there. The week before, it would come on after a few minutes, fading in overzoomed and unaligned. This would clear up before my eyes like an old TV warming up. Now black screen and all the listening you can stand. Any suggestions?

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  • derek_opie Apr 04, 2008

    No, no visuals of any sort now, but everything else functions because I can hear the different sources if I switch inputs. I've got myself a service manual, though it seems geared toward someone with intimate knowledge of samsung products (go figure). Armed with this and your advice I'll dive inside when I get back into town. I guessed it would be something common to the three guns.

  • derek_opie May 08, 2008

    Well, I'm back to look at my TV and I can't find the driver you recommend checking, even with the service manual. It leaves out a few things I like to see like a board layout. It does have a flowchart for troubleshooting my specific problem, but uses general terms meant for someone who is familiar with TV servicing.

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  • Samsung Master
  • 8,617 Answers

Sounds like vertical deflection has caused the tubes to go into blanking. Do you still have on screen displays? Try resoldering the vertical output IC. If that doesnt help the vertical output may be defective.

Posted on Apr 04, 2008

  • Sonny Berry
    Sonny Berry Apr 04, 2008

    yes if vertical deflection stops all 3 CRTs will shutdown for protective reasons.

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