Search the web
Sign In
New User? Sign Up
TRS-80 · TRS-80 Radio Shack Computers
? Already a member? Sign in to Yahoo!

Yahoo! Groups Tips

Did you know...
Message search is now enhanced, find messages faster. Take it for a spin.

Best of Y! Groups

   Check them out and nominate your group.
Having problems with message search? Fill out this form to ensure your group is one of the first to be migrated to the new message search system.

Messages

  Messages Help
Advanced
Messages 2498 - 2527 of 3674   Oldest  |  < Older  |  Newer >  |  Newest
Messages: Simplify | Expand   (Group by Topic) Author Sort by Date ^
2498
Anyone know the video pin-outs for the 5 Din connector on the model I? Looking to tap the composite video out....
cornelleyde
Offline Send Email
Mar 7, 2008
9:08 pm
2499
Pin 1 = +5V Pin 2 = Ground Pin 4 = Video Mike ... ____________________________________________________________________________________ Be a better friend,...
Mike Fortuna
nhmikef
Offline Send Email
Mar 7, 2008
9:39 pm
2500
FYI AFAIR The video-out signal of the keyboard/CPU does not comply to the composite standard. The voltage is a little bit too high so you have to put an...
butchijo
Offline Send Email
Mar 8, 2008
6:31 pm
2501
Opps, That's news to me. In the past (30 years ago) I've done the RF modulator thing and tapped the 5volt line for power. An driven a generic composite monitor...
Cornell Eyde
cornelleyde
Offline Send Email
Mar 8, 2008
8:23 pm
2502
Never heard that one. I've connected pin 4 to the center and pin 2 to the outside and have driven several different CVBS monitors for the last 15 years. ...
Jan Vanden Bossche
jan80trs
Offline Send Email
Mar 8, 2008
8:57 pm
2503
News to me too. My model1 video cable recently fell apart and I made a new one. I didn't use any resistors and it works just fine on an old generic b/w...
Terry Stewart
tezza_80
Offline Send Email
Mar 9, 2008
5:41 pm
2504
Hi Jan, I looked it up: The composite video is 1 V (p-p)(ref Wikipedia) . The output of the TRS-80 is 1.8V (p-p) (ref: TRS-80 technical reference handbook). So...
butchijo
Offline Send Email
Mar 9, 2008
5:42 pm
2505
OK Butch, you're probably right. But I think that we can safely assume, as you did, that most, if not all, CVBS monitors can handle this. Also because in the...
Jan Vanden Bossche
jan80trs
Offline Send Email
Mar 9, 2008
8:38 pm
2506
I have a Model 16K Level II model one that has not been used in 20 plus years. The LED lights up, but there is no picture on the monitor. I tried a composite...
cornelleyde
Offline Send Email
Mar 15, 2008
1:15 pm
2507
Normally if you have a CPU or PROM issue, you'll get junk on the screen. No junk means you are getting no signal. It could be there is no clock and therefore...
Mike Fortuna
nhmikef
Offline Send Email
Mar 15, 2008
4:04 pm
2508
... screen. No junk means you are getting no signal. It could be there is no clock and therefore no video. Hit enter a few times and then enter cload. If the...
cornelleyde
Offline Send Email
Mar 15, 2008
9:30 pm
2509
... Not a common problem, I think it is more common to get garbage on the screen. No video... you might turn brightness and contrast on the monitor all the way...
Knut Roll-Lund
knutrl
Offline Send Email
Mar 15, 2008
9:52 pm
2510
I actually have a Model I with the same issue. Maybe this is a good time to open it up and see what's wrong. I got it for free from someone and it was...
David J. Cooper
eugeneman42
Offline Send Email
Mar 15, 2008
10:26 pm
2511
Thanks, I'll need to investigate further. At one point in time the machine had the power supply plugged into the video jack (by accident) but that was repaired...
Cornell Eyde
cornelleyde
Offline Send Email
Mar 15, 2008
11:14 pm
2512
Anyone have a PDF of the RS Model I Service manual The Board says TRS-80 170069G (I think that makes it a G board?)...
cornelleyde
Offline Send Email
Mar 15, 2008
11:37 pm
2513
Check the photo album for a few pictures of my L1/L2 card. I designed this card mainly as an exercise for learning the pcb123 software. Not much to it, just a...
nhmikef
Offline Send Email
Mar 18, 2008
12:26 am
2514
Here is the Model I service manual (PDF) with schematics at the end: ftp://incore.net/pub/trs80/TRS-80_Technical_Manual_1978_Radio_Shack.pdf ...
Clay Degenhardt
mr_transistor
Offline Send Email
Mar 18, 2008
12:27 am
2515
thanks --- On Mon, 3/17/08, Clay Degenhardt <mr_transistor@...> wrote: From: Clay Degenhardt <mr_transistor@...> Subject: [TRS-80] Re: Model I...
Cornell Eyde
cornelleyde
Offline Send Email
Mar 18, 2008
12:50 am
2516
Any Luck David? I'm going to dig in this weekend. ... good time to open it up and see what's wrong. I got it for free from someone and it was covered with mud...
cornelleyde
Offline Send Email
Mar 19, 2008
5:43 pm
2517
So finally my new application, a spinnoff from wav2cas, is ready for release. Those last quirks were more difficult to solve than I had imagined... Play CAS is...
Knut Roll-Lund
knutrl
Offline Send Email
Mar 25, 2008
12:58 am
2518
... plays ... also ... Too bad my real Model III doesn't work, else I would defenitely have given it a try. This seems to be a great utility. Keep up the good...
N.Karsdorp
dh3201
Offline Send Email
Mar 25, 2008
11:01 am
2519
... Dave, Both Attila Grosz's and Matthew Reed's emulator will output casette files as WAVs. Not sure about bitrates with MP3s though. Terry ... From: David...
Terry Stewart
tezza_80
Offline Send Email
Mar 25, 2008
10:16 pm
2520
Hi From: David Sutherland [turnkit@...] ... Play CAS can save a WAV also. You find 'Save Wav' file in the options menu. The format is 22050 Hz mono 8 bit...
Knut Roll-Lund
knutrl
Offline Send Email
Mar 25, 2008
11:29 pm
2521
The May 2008 issue of Computer Power User magazine has a Model III on its cover for its Mad Reader Mod section. Abit AN-M2 with a AMD64 X2. An old 12" lcd...
Stephen Castello
a_b5_fan
Offline Send Email
Mar 27, 2008
5:04 pm
2522
I was watching the beginning of "Airplane II: The Sequel" today, and saw several Model IIIs on a counter at the airport....
Ed Nickl
pioneer4x4
Offline Send Email
Mar 27, 2008
9:57 pm
2523
Pretty cool. I wonder how he got the keyboard to work? Here's a link to the actual article. Was a little hard to find. ...
James Stephenson
jdsteph12
Offline Send Email
Mar 28, 2008
1:33 am
2524
... They had one on the secretary's desk in the old Remington Steele tv series. -- Leonard Erickson (aka shadow) shadow at shadowgard dot com...
shadow@...
shadow97218
Offline Send Email
Mar 28, 2008
4:29 pm
2525
Did anybody spot the Model IV in Napoleon Dynamite? It was in the bottom shelf at the thrift store... ... ...
David G.
winnderfish_...
Offline Send Email
Mar 29, 2008
6:32 pm
2526
Hallo, http://content.techrepublic.com.com/2346-13636_11-193055.html?tag=nl.e099.dl 032608&tag=nl.e099 They "cracked" an osborne 1 this time. I noticed that a...
Jan Vanden Bossche
jan80trs
Offline Send Email
Mar 30, 2008
9:39 am
2527
The spotting of TRS-80 in TV and movies was also a subject on comp.sys.tandy a few years ago: TRS-80 SIGHTINGS - A Usenet Compilation ...
rainerfredrich
Offline Send Email
Mar 30, 2008
9:34 pm
Messages 2498 - 2527 of 3674   Oldest  |  < Older  |  Newer >  |  Newest
Advanced
Add to My Yahoo!      XML What's This?

Copyright © 2009 Yahoo! Inc. All rights reserved.
Privacy Policy - Terms of Service - Guidelines - Help