rknop@nntp-server.caltech.edu (Robert Andrew Knop) (03/08/91)
I am placed in the rather embarassing situation of asking a question which I know was recently asked, but to whose answer I didn't pay much attention since at the time I didn't think I would ever want or need to know how to do this. My question is, where can one get ahold of a cable which will let you display the 128's 80 column screen in monochrome on a composite monitor or a TV? Thanks, -Rob
cshamis@desire.wright.edu (03/08/91)
In article <1991Mar7.163956.2069@nntp-server.caltech.edu>, rknop@nntp-server.caltech.edu (Robert Andrew Knop) writes: > I am placed in the rather embarassing situation of asking a question which I > know was recently asked, but to whose answer I didn't pay much attention since > at the time I didn't think I would ever want or need to know how to do this. > My question is, where can one get ahold of a cable which will let you display > the 128's 80 column screen in monochrome on a composite monitor or a TV? > > Thanks, > > -Rob This might be a little trickier than you think. (at Leaset for a TV) (Which is all i know how to do at the moment) To send the RGBI output to a TV, the only way I can think of to do it is to use the MONOCROME pin off the RGBI port, then send that Info, thru to a RF-Modulator. Then you can send the RF-out line into the VHF in on your television. The better the RF modulator the better your picture will be on the screen...(The TV helps alot also.) I know that RadioShack USED to sell a RF-Modulator, that worked real well with this application. The RF Mod. was from the old TI-99/4A computer, I think it (The RF-M, can still be purchased but Im no longer sure) The Exact procedure is fairly simple, keep the RF modualtor grounded, and +12 (Maybey +5) volts going thru it, and the MONOCROME-OUT line from the RGBI port, and remember to use the two synch wires too! theres a H and V both, run them ALL into the RF-Mods Pinouts, and BINGO your set-up. Like I saidits been over 2 years Since I had to use this method but it works. IF you use the TI's Modulator the wire colours are thus : Black - Ground Red - Plus 5v (or plus 12v) Yellow- Picture (Monocrome ONLY) White - Vsynch Brown - Hsynch Please Its been two years since I messed with this, these MAY not be accurate! But at least you get the idea of what youll need to do. (Hope your handy with a Soldering Gun those 9-pin connectors are a %$@@$&!!!) CShamis@Desire.Wright.Edu CShamis@WSU.Bitnet
root@zswamp.fidonet.org (Geoffrey Welsh) (03/10/91)
Robert Andrew Knop (rknop@nntp-server.caltech.edu ) wrote: >My question is, where can one get ahold of a cable which >will let you display >the 128's 80 column screen in monochrome on a composite >monitor or a TV? I don't know about modulating it for a TV, but you can wire pin 7 of the RGB port (monochrome signal) to the luma (or video) inputs of most composite monitors such as the 1701/1702. Don't forget also to wire the ground... pin 1 I think. -- UUCP: watmath!xenitec!zswamp!root | 602-66 Mooregate Crescent Internet: root@zswamp.fidonet.org | Kitchener, Ontario FidoNet: SYSOP, 1:221/171 | N2M 5E6 CANADA Data: (519) 742-8939 | (519) 741-9553 The mile is traversed not by a single leap, but by a procession of coherent steps; those who insist on making the trip in a single element will be failing long after you and I have discovered new worlds. - me
bwildasi@silver.ucs.indiana.edu (Ben Wildasin) (03/10/91)
The cable can be purchased from Tenex, (800) 776-6781, cat. no. 40771. It costs $24.95. This is probably an exorbitant price given the components that go into it, but it has been a godsend for me since for $100 dollars (a $75 mono. monitor plus the cable) I have crisp, clear CGA, switchable instantly to composite to run 64 software. (I seem to remember that the results are not so hot on a color composite monitor, however...) Hope this helps. -- ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ::Ben Wildasin:::::::::::::::::::::::::::::::::::::::bwildasi@ucs.indiana.edu:: :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
cs4344af@evax.arl.utexas.edu (Fuzzy Fox) (03/12/91)
As someone here posted, Tenex does sell an RGB to monochrome composite cable for $24.95. I am amazed at this price, because Software Support International also sells such a cable, for $7.95. What do you suppose the difference is? -- David DeSimone, aka "Fuzzy Fox" on some networks. /!/! INET: an207@cleveland.freenet.edu / .. Q-Link: Fuzzy Fox / --* Quote: "Foxes are people too! And vice versa." / ---