#16
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Here are some pics of the inside on mine. It's actually cleaner than I expected. The main board on the bottom has a cover over it. Where should I begin about recapping?
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#17
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Starting separate thread
Last edited by dibmem; 12-27-2017 at 08:03 AM. Reason: Starting separate thread |
#18
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Only recap the sweep board & only the electrolytics. Also check
it real good for cold joints. The big shielded board on the bottom is the digital board. Do not mess with it unless you HAVE to. RGB is probably TTL with sync on green. It prob goes to a switching IC just before a D-A converter. IIRC Sams covered this. Try to find a used ORIGINAL copy. sams is too much $$ & often a poor quality. Originals are the highest Q. OEM Zenith manuals suck at this time but they may have info on the RGB input. They come on fiche that is a PIA to work with or paper that came loose. Finding a truly complete paper one is HARD. Training manuals are nice but I dont remember training on them. May have just missed it. Watch e-bay for OEM. You will probably need to find the manual number 1st. format is CM### 73 Zeno LFOD ! |
#19
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...
Last edited by andy; 11-18-2021 at 05:02 PM. |
#20
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I've been using this set on component with my ps2 and it has worked great. Am I pushing my luck of somthing frying if I don't do or check anything right away? Set has a great picture and overall seems to just "work" which is what I like.
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Audiokarma |
#21
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And thank you everyone for the responses
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#22
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Quote:
There were also two different services carried via the Discovery Channel, Infotext (which revolved around agricultural news and such, as well as AP news and sports), and Datavizion, a family-oriented service which carried quizzes, games, etc. as well as a satellite TV guide. Now, apparently it is possible to extract teletext from S-VHS, so hopefully there are some S-VHS tapes of WTBS from before 1993 that could have pages extracted from them. |
#23
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Thanks for the info. Business relations for Teletext were really a bowl of spaghetti, from what you have posted.
Regular VHS (as well as S-VHS) would record/playback closed caption data, so I wonder if it would also record/playback Teletext? There might be a lot more around on old tapes than anyone realizes. |
#24
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Just checked with a colleague of mine who worked on the captioning capability of VHS, who says:
"...normal VHS machines will not record teletext. The data rate is too high. Captioning is a lower rate and gets through. On S-VHS machines the recording has a wider bandwidth and can record the teletext signal. However there is a comb filter that separates the color from lumance. This destroys the data and needs to be turned off during the teletext interval." |
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