no tv signal
DonBMW
Newbie

For no apparent reason all of a sudden we lost the picture and "no signal" message appears on the screen.  Still receive sound.  I checked to make sure tv is set on channel 3, also reset the cable box three different times.  Still no signal.  We have model HD-QIT71001 cable box.  Three other tv's including high def box work fine.  HELP!

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