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It looks like this set will be bound for file 13. I thought I might get off light when I found a blown fuse and two out of the four diodes in the bridge rectifier network were shorted; which, usually indicates lightning / power surge damage. After replacing those parts, it came up with a greenish raster with vertical foldover. Then, the CRT arced. When fed with a signal, there was audio; but, no video. I didn't feel like digging into the video and vertical circuits, since the CRT is no good. So, out it goes.
This TV will indeed not tune cable channels. All it will handle are channels 2-83 and there is no way to select between CATV and OTA. On the keypad, there are buttons for 0-9, enter, and a skip button. The picture controls are of the rotary type and are located behind a door above the keypad.
Over the years, it seems like the non-cable ready digitally tuned Zenith TV's had red LED displays and the cable ready TV's had green LED displays. Until now, the newest non-cable ready digitally tuned Zenith that I've seen was from the mid '80's. And, they did make both a 12" and 19" B&W set with such a tuner. I also saw one oddball 13" Zenith from the mid '80's that had a continuous tuner, similar to what's on most 5" portables.
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