PDA

View Full Version : Anyone familiar with these TI 3046 or LR47777 monitors?



mrcity
November 12th, 2017, 10:07 AM
I've had these monitors for close to two years now and haven't been able to identify thheir purpose. I haven't attempted to power them up because I don't know what I can safely connect them to.

They have an IEC plug that seems to go into the female port of a 5150-style computer (where you can plug the monitor into the computer's power supply), but then there's a Composite (RCA connector) video input. Searches on the two potential model numbers (TI 3046 or TI LR47777) turned up nothing of interest, nor did searching on the FCC ID. I asked Paul Urbanus, who wrote Parsec for the TI-99 as an intern, if he remembered these and he said they probably aren't related to any of the home computer products.

41917
41918

Any ideas?

roberttx
November 12th, 2017, 10:17 AM
Did TI ever sell a CCTV system?

SpidersWeb
November 12th, 2017, 10:27 AM
My guess is it's probably a generic composite monitor. Was quite popular to prefer these over TV if you had a computer running 80 column text.

On the back I can see it's 120VAC, and if you have a female IEC connector, then just plug a male mains cable in to it and flick the switch (that's all that plug really is on the back of PCs - it's nothing special). Then if it doesn't pop you can feed in a composite video signal and see if it syncs - anything from an Apple II to even an old VCR would likely work.

Chuck(G)
November 12th, 2017, 11:19 AM
Here's a photo of one with a Ti Professional Computer. It has that "Zenith" look about it and wouldn't surprise me if that's what you found inside.

http://www.pdp8.net/shows/vcfe16/ti_floppy.jpg

djg
December 26th, 2017, 05:55 AM
Just ran across this. Picture is my machine. Its 730x300 pixels vs CGA 640x200. I can measure the video timing if you wish. I have a little info on it online at http://www.pdp8online.com/shows/vcfe16/pics/P1090151.shtml?small