THANK YOU! I had the black screen, but menus and external VCR all worked, only the cable input was "disabled" (black screen on all channels). Guide had "To be announced", but got populated, but NO VIDEO from cable. I disconnected the AC power and cable from the box for over a minute, hooked both up, and after a short initialization, the cable box power went off. It turned it back on, and it was WORKING! The guide just has to repopulate, but that's ok.
From John Nozum, a recipient of a new cable box as of 09/04/2019
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