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Vertical/horizontal I have a 1989 Zenith SF2517TR floor model tv. It will not stay set as the picture will shrink to half the size of the screen. You can bang on the side of the TV and it will reset. Where is the vertical/horizontal switch for this tv, as i can not find it.

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  • muherd99 Sep 10, 2007

    Zenith SF2517TR

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Since you can bang it to heal it some, try checking for cold solder joints. Caps and IC's next. Careful TV's store up to 3000 K volts unplugged. Enuff to kill.

Posted on Jan 08, 2008

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Posted on Jan 02, 2017

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