Question about Sanyo DS27510 27" TV

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Picture tube has a horizontal line across the screen but not picture, just the sound comes through. I can sometimes regain a picture by quickly turning on and off the surge protector switch, but lately is has been going out more often without coming back. In other words the picture returns full screen for a week or turn then it goes out by leaving a horizontal light line with full sound.

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  • john alex bangot Jun 12, 2013

    good day..i encountered 1 inch horizontal line on my television..then i open the and re solder the circuit on the vertical section but the problem was not resolved ..any idea,tnx

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Hello,
You are experiencing a lack of vertical deflection or vertical collapse. Since it will come back the first thing I would suspect is “ring cracks” in the solder joint in the vertical circuit, mainly the vertical IC. These suspect solder joint can be re-soldered and the television set repaired.
I would suggest that you contact a local servicer. If you are repairing the set yourself, be careful, there is always a risk of shock when dealing with electronics.

I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread.
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Thank you for your support

Posted on May 15, 2009

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  • Master
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This is a problem within the vertical circuit. Since this seems to "recover" at times, it suggests that the problem is a connection one. If you can solder, resolder the connections on the vertical IC. This is a small flat IC attached to a heat sink with 9-11 pins. It may be marked LA7837 or something similar.

Try the resoldering and update this if the problem is not resolved.

Dan

Posted on May 15, 2009

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