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can't connect to display

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can't connect to display

how to connect cable box  to sharp aquos LC 45gx6u monitor hdmi to div imout large cable box dets picture then snow small box displays small pictuer about 10z12 inches scranbled upper left corner  please help

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Re: can't connect to display

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Xfinity X1 TV Box
Press the xfinity button on your remote. Go to the gear icon to the far right, and press OK. Go to Device Settings, then Video Display, then Video Output Resolution. For an SD TV, select 4:3, 480i SD, and then press OK.

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