Wanting to tap the rgb port

[old_tv_nut]

I'm guessing that the text print port means that this set has a Teletext decoder.

I can't recall what the RGB port would be on these. There's a good possibility it's not compatible with anything current; for example, it could be TTL logic levels.

Maybe somebody who knows for sure will chime in.

[dieseljeep]

Originally Posted by old_tv_nut

I'm guessing that the text print port means that this set has a Teletext decoder.

I can't recall what the RGB port would be on these. There's a good possibility it's not compatible with anything current; for example, it could be TTL logic levels.

Maybe somebody who knows for sure will chime in.

One of the people that worked in the same place I did had one of those sets and he even bought the printer that was available for that set.
He was the biggest toy and trinket buyer, I ever knew!

[zeno]

Wow yours still has a sweet pix. When they came out the table
model was $1100 & we sold it $1000 with a free printer.
Teletext was just a newspaper format & also used by truckers to
find loads. It was sent by the Atlanta superstation on cable.
The set was NTSC. After video & audio detect everything was digitally
processed then back to analog for the outputs. I dont remember
the RGB but probably TTL. Look for an owners manual, OEM service
manual, training manual or Tech Topics for more on it.

One thing I would do to this set is recap ( lytics only) the vert board. A bad
cap will blow the IC. The IC has been disco for YEARS.........

73 Zeno
LFOD !

[Jeffhs]

Originally Posted by old_tv_nut

I'm guessing that the text print port means that this set has a Teletext decoder.

I can't recall what the RGB port would be on these. There's a good possibility it's not compatible with anything current; for example, it could be TTL logic levels.

Maybe somebody who knows for sure will chime in.

I have a Zenith SMS1917SG 19" table model TV (new in 1995) which has a Teletext decoder, but no printer port or RGB port. I never used the decoder, although I might have seen teletext activity through that system had I been in the Atlanta area. I think WTBS-TV (channel 17) in that city was experimenting with teletext in the late 1980s-early '90s. The teletext decoder in my Zenith TV has two modes, Text 1 and Text 2, selectable from an onscreen menu; I think text 1 was standard teletext, but I am not sure what the second TT option would have been used for. In any event, since my area's TV stations were not conducting teletext tests or using the system at all (I doubt they were), I never knew if the TT decoder in my set worked or not.

While my set has the teletext option in the OSD menu, however, I am not sure if the decoder would have been usable since there are no RGB or printer ports on the back of the set; the only input jack there is a 75-ohm connector for antenna or cable TV. Since the set has no RGB or printer ports, I can't help but wonder why the TV had a teletext decoder in the first place, unless it was designed only for on-screen readout, the RGB/printer ports were available as extra-cost options, or if there was a special model of this TV that indeed had the ports built in.