Question about Symphonic ST427FF TV

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Single horizontal white line on screen

I turned tv on and screen has only single white horizontal line. I think this must be related to the vertical i/c not working. Where can I find a manual or picture to locate the vertical i/c components on board/cabinet?

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  • pullen_s1 Nov 25, 2008

    The TV I have is Model#WF27F4 Symphonic. I'm not sure this makes a difference to the solution.

    The only flat item that matches the description has 16 connections(8on either side) and is covered

    by the heat sink. I sure would like to see a picture or schematic for this model if someone has one.

    Thanks

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This is either bad connections at the vertical IC or a defective IC. This should be a small flat IC attached to a heat sink. It will be marked LA7837 or something similar. It will have about 11 pins. If you are not sure you have the correct one, post the marking here and I'll confirm.

Dan

Posted on Nov 17, 2008

  • ABRsvcs Nov 25, 2008

    Look for an IC that only has pins coming out one side and is standing with the pins down. It should be attached to a small heatsink too. I don't have listing for your specific model. I'll research this a bit and try to get more details.



    Dan

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