Samsung UN32D4000NDXZA - Manual (Page 180)

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Troubleshooting
If the TV seems to have a problem, first review this list of problems and solutions. If
none of these troubleshooting tips apply, visit samsung.com, then click on Support, or
call Samsung customer service at 1-800-SAMSUNG.
Issues Solutions❑and❑Explanations
Poor picture First, perform the Picture❑Test and to see if your TV is
properly displaying the test image.
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Go to MENU - Support❑-❑Self❑Diagnosis❑-❑Picture❑Test❑
If the test image is properly displayed, the poor picture may
be caused by the source or signal.