[comp.sys.amiga.hardware] Specs for 1080 monitors?

barrett@jhunix.HCF.JHU.EDU (Dan Barrett) (05/07/90)

	With everybody getting multisync monitors and talking about
dot pitches of 0.31 and 0.28, etc., I was wondering...

	What are the "specs" for the standard Amiga 1080/1084 monitors,
for comparison's sake?  What's the dot pitch?  Etc.?  I looked in my
1080 manual and found none of this information.

                                                        Dan

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jma@beach.cis.ufl.edu (John 'Vlad' Adams) (05/07/90)

Here are the specs on the 1084D monitor.

Picture tube:		14 inch, in-line slot, pitch 0.42mm
Display screen:		13 inch, measured diagonally
Deflection:		90 degrees
Resolution:		640x200 lines, 640x400 interlaced
Raster frequency:	60 Hz
Line frequency:		15750 Hz
Character field:	RGB, RGBI - 2,000 characters

There's more, but that's most of the elementary stuff for non-techies...
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commike@sunybcs.cs.Buffalo.EDU (Alan Commike) (05/08/90)

In article <23127@uflorida.cis.ufl.EDU> jma@beach.cis.ufl.edu (John 'Vlad' Adams) writes:
>Here are the specs on the 1084D monitor.
>
>Picture tube:		14 inch, in-line slot, pitch 0.42mm
>Display screen:		13 inch, measured diagonally
>Deflection:		90 degrees
>Resolution:		640x200 lines, 640x400 interlaced
                                   ^^^^^^^^^^^^^^^^^^

not on some of the old monitors, interlace doesn't work.

	...alan

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grr@cbmvax.commodore.com (George Robbins) (05/09/90)

In article <24840@eerie.acsu.Buffalo.EDU> commike@sunybcs.cs.Buffalo.EDU (Alan Commike) writes:
> In article <23127@uflorida.cis.ufl.EDU> jma@beach.cis.ufl.edu (John 'Vlad' Adams) writes:
> >Here are the specs on the 1084D monitor.
> 
> not on some of the old monitors, interlace doesn't work.
> 	...alan


Huh?  Interlace does work on all the Commodore PAL/NTSC Amiga monitors, if not,
the monitor is probably broken and needs a visit to a service center.

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commike@sunybcs.cs.Buffalo.EDU (Alan Commike) (05/10/90)

In article <11456@cbmvax.commodore.com> grr@cbmvax (George Robbins) writes:
>
>Huh?  Interlace does work on all the Commodore PAL/NTSC Amiga monitors, if not,
>the monitor is probably broken and needs a visit to a service center.
>

Well that's not entirely true. There are a bunch of older 108[0|4](S) monitors
that display interlace as a kind of "double-interlace". Instead of interleaving
the 2 frames, they are displayed on top of each other. This has the nasty
effect of leaving whole scan lines blank where the second frame should
be. 

There are two dealers in my area. One never heard of the problem, and 
would charge me a bench charge to bring in the monitor so they could look
at it! The other dealer knows about the problem, and he even has one of
the monitors that has this problem in his store. He says he has tried
to find why this happens a few times, and can't seem to find a thing
wrong with the monitor. There is also a television repair shop that
replaced my fly-back transformer when it blew (got it done in a week, as
opposed to 6 weeks the authorized Commodore repair center would have
taken), he looked it over and couldn't see anyting wrong.

Many people have reported this, but noone has been able to fix it. Some
are worse than others. Many people say once the monitor is fine until
it heats up, others only have this problem occasionally, and we'll mine
just seems to be stuck in double-interlace forever...

	...alan

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Q: How many computer scientists does it take to change a light bulb?
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watters@adena.cis.ohio-state.edu (david r watters) (05/10/90)

In article <25109@eerie.acsu.Buffalo.EDU> commike@sunybcs.cs.Buffalo.EDU (Alan Commike) writes:

>Well that's not entirely true. There are a bunch of older 108[0|4](S) monitors
>that display interlace as a kind of "double-interlace". Instead of interleaving
>the 2 frames, they are displayed on top of each other. This has the nasty
>effect of leaving whole scan lines blank where the second frame should
>be. 
>	...alan


A little monitor history:
First was the 1080, made by '?'.  Then came the 2002 made by '?'
A 1070 was in there somewhere.  All these were fine in my opinion.

Then came the dreaded 1084 made by Magnavox.  JUNK, crap, garbage!!
These are the ones that you constantly here about snapping and dying.
Where I worked, we had them being returned in droves!  Then came
the 1804S which was the same monitor in stereo, with the same problems.
De-interlacing an interlaced screen whenever it wanted to, poping
dying, unusual shaded bands going down the leftside of the screen,
scanlines at the bottom of the screen doing very flaky things, ect...

Then came the 1084sD, made by '?' (maybe magnavox, but certainly a different
monitor then above).  This one was wonderful.  Picture was clear, contrast
was perfect, scanlines were closer, most of the above symptoms were
gone and they flickered a lot less.  Well, for some reason CBM ended
up selling a non-stereo version of the D, but it was still a great 
monitor.

Then I hear through close people that someone in the new improved
CBM brass let the contract with the makers of the 1084D go un-renewed!!!
And guess what, all the new monitors being shipped now are back to the
old junk, crap, trash magnavox's!!!

Why?  Explain this to me?  $299 for a monitor is a great price, by why
sell a junk monitor with a $3000+ '030 workstation. (2500/30) and why
not continue selling the 1084D(s)????????????????????????????????