8 Apr
2015
8 Apr
'15
3:49 p.m.
I have finally managed to get my hands on a TRS-80 Model 1. Trouble is, it
came without a monitor. I have been doing some searching to see if I can
find out what kind of monitor it is and I am left unsure. All I have found
so far is a statement which says it is a TV without a tuner. I am not sure
what that means. I still have a CRT TV, can that be made to work, or have I
bought something that I can't use?
Thanks
Rob
8 Apr
8 Apr
3:55 p.m.
On Wed, 8 Apr 2015, Robert Jarratt wrote:
I have finally managed to get my hands on a TRS-80
Model 1. Trouble is, it
came without a monitor. I have been doing some searching to see if I can
find out what kind of monitor it is and I am left unsure. All I have found
so far is a statement which says it is a TV without a tuner. I am not sure
what that means. I still have a CRT TV, can that be made to work, or have I
bought something that I can't use?
You can make a cable to connect the DIN jack on the Model 1 to a
standard composite video monitor:
https://www.youtube.com/watch?v=xr2IKeNR5Gs
Mike Loewen mloewen at cpumagic.scol.pa.us
Old Technology http://q7.neurotica.com/Oldtech/
3:55 p.m.
The model 1 did in fact use an RCA B&W tv with the tuner Amplifier/speaker
and IF card removed, the video cable came out of the spot left by the
removed volume knob. You can use a standard NTSC monitor.
Connect pin 5 of the DIN connector to the shield of a coax cable and
connect pin 4 of the DIN connector to the center conductor, then terminate
the coax cable with an RCA connector and connect the cable to your monitor.
You can connect the cable to a standard composite video in, bu you will get
a better picture if you connect it to the Green(Y) connector on a
component input (if your monitor can do 480i on component)
On Wed, Apr 8, 2015 at 6:49 PM, Robert Jarratt <robert.jarratt at ntlworld.com>
wrote:
I have finally managed to get my hands on a TRS-80
Model 1. Trouble is, it
came without a monitor. I have been doing some searching to see if I can
find out what kind of monitor it is and I am left unsure. All I have found
so far is a statement which says it is a TV without a tuner. I am not sure
what that means. I still have a CRT TV, can that be made to work, or have I
bought something that I can't use?
Thanks
Rob
--
Matt Patoray
Owner, MSP Productions
(330)542-3698
mspproductions at gmail.com
KD8AMG Amateur Radio Call Sign
4:04 p.m.
On Wed, 8 Apr 2015, Robert Jarratt wrote:
I have finally managed to get my hands on a TRS-80
Model 1. Trouble is, it
came without a monitor. I have been doing some searching to see if I can
find out what kind of monitor it is and I am left unsure. All I have found
so far is a statement which says it is a TV without a tuner. I am not sure
what that means. I still have a CRT TV, can that be made to work, or have I
bought something that I can't use?
Almost any TV that has a "composite video" input. Or an RF modulator., or
the video in of a VCR.
It is close to being in-spec for RS-170. OK, it IS "RS-170", if and only
if you interpret that to mean "RADIO SHACK 170" (which is what they once
did with "RS-232".
When I did lectures in Evans-10 at UC, I just cabled straight in to the
wall jack there, to display on half a dozen large overhead monitors.
--
Grumpy Ol' Fred cisin at xenosoft.com
9:57 p.m.
I have finally managed to get my hands on a TRS-80
Model 1. Trouble is, it
came without a monitor. I have been doing some searching to see if I can
find out what kind of monitor it is and I am left unsure. All I have found
so far is a statement which says it is a TV without a tuner. I am not sure
what that means. I still have a CRT TV, can that be made to work, or have I
bought something that I can't use?
Did you get the PSU brick? That is a little harder (but only a little) to replicate?
The TRS-80 M1 drives a normal [1] composite video monitor. The original one was an RCA
portable TV that had had the tuner, etc, removed, but there is no reason why you have to
use that. I am sure you have something that will work.
[1] OK, US scan rates. 15770Hz horizontal, 60Hz vertical. But I've yet to find a
composite
monochrome monitor that can't be tweaked to do both US and European rates.
The only trick is the video output connector on the M1. It's a 5 pin DIN socket. The
connections are :
1 : +5V
4 : Composite video
2 ; N/C
5 : Ground
3 : N/C
And of course the pins are numbered in that order on the connector/
-tony
10:58 p.m.
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of tony
duell
Sent: 09 April 2015 05:58
To: General Discussion: On-Topic and Off-Topic Posts
Subject: RE: TRS-80 Model 1 Monitor
replicate?
I have finally managed to get my hands on a
TRS-80 Model 1. Trouble
is, it came without a monitor. I have been doing some searching to see
if I can find out what kind of monitor it is and I am left unsure. All
I have found so far is a statement which says it is a TV without a
tuner. I am not sure what that means. I still have a CRT TV, can that
be made to work, or have I bought something that I can't use?
Did you get the PSU brick? That is a little harder (but only a little) to
The TRS-80 M1 drives a normal [1] composite video
monitor. The original
one
was an RCA portable TV that had had the tuner, etc,
removed, but there is
no
reason why you have to use that. I am sure you have
something that will
work.
3545
days inactive
3546
days old
5 comments
5 participants
participants (5)
-
ard＠p850ug1.demon.co.uk -
cisin＠xenosoft.com -
mloewen＠cpumagic.scol.pa.us -
mspproductions＠gmail.com -
robert.jarratt＠ntlworld.com