Samsung UN32D4000NDXZA - Manual (Page 121)

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Self❑Diagnosis
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Picture❑Test❑(Yes❑/❑No) : Use to check for picture problems. Picture test
displays a high definition picture that you can examine for flaws or faults.
Yes : Select Yes if the test picture does not appear or there is noise or
distortion in the test picture. There may be a problem with the TV. Contact
Samsung’s Call Center for assistance.