a186@mindlink.UUCP (Harvey Taylor) (05/02/90)
In <11177@cbmvax.commodore.com>, hood@cbmvax.commodore.com (Scott Hood) writes: > [...] > The 1950 is just a very good multiscan monitor. > > Scott Can you supply any quantitative info? I am wondering about: Screen Size Resolution Dot Pitch Vertical Frequency (Range) Horizontal Frequency (Range) BandWidth Phosphor Type Tilt Swivel Base Anything else you think is relevant... <-Harvey PS. I don't suppose you want to tell us who OEM'ed it for you? ;-) "Anyone who considers arithmetical methods of producing random digits is, of course, in a state of sin." -Von Neumann Harvey Taylor Meta Media Productions uunet!van-bc!rsoft!mindlink!Harvey_Taylor a186@mindlink.UUCP
rjtatz@hpuxa.ircc.ohio-state.edu (Robert J. Tatz) (05/03/90)
In article <1625@mindlink.UUCP> a186@mindlink.UUCP (Harvey Taylor) writes: > > Can you supply any quantitative info [ about the 1950 monitor ] ? > I am wondering about: > Screen Size ...etc. > Anything else you think is relevant... > > <-Harvey > Screen size - 14" diagonal Resolution - 800 dot (H) x 600 Lines (V) Pitch - 0.31 mm Deflection - 90 degrees Scanning: Horiz - 15-36 KHz Vert - 50-80 Hz Signal - analog RGB and digital RGBI Connectors - DB-15 (VGA) and adapters for Amiga DB-23 and DB-9 Display modes - (multiscan) MDA, Hercules, CGA, EGA, VGA, Super VGA, Amiga Swivel base With the A3000, all screen modes seem to work - 1280 x 400 (1440x480 overscan) and 640 x 960 and others. The A3000 can put out a 640x480 16 color deinterlaced screen with the A1950 hooked up (standard VGA mode). DPaint III is super fast on the 25MHz A3000, but it loses the menu bar on overscan. It doesn't die though since keyboard commands still work. .std disclaimer Bob rjtatz@hpuxa.ircc.ohio-state.edu
eric@oakhill.UUCP (Eric Quintana) (05/04/90)
>> Can you supply any quantitative info [ about the 1950 monitor ] ? > Resolution - 800 dot (H) x 600 Lines (V) > > With the A3000, all screen modes seem to work - 1280 x 400 (1440x480 overscan) > and 640 x 960 and others. I'm confused. How does 1280 x 400 work on a monitor that only has 800 dots horizontal resolution? Is the screen cropped? >Bob rjtatz@hpuxa.ircc.ohio-state.edu Eric Quintana
hood@cbmvax.commodore.com (Scott Hood) (05/04/90)
In article <1625@mindlink.UUCP> a186@mindlink.UUCP (Harvey Taylor) writes: >In <11177@cbmvax.commodore.com>, hood@cbmvax.commodore.com (Scott Hood) >writes: >> [...] >> The 1950 is just a very good multiscan monitor. >> >> Scott > > Can you supply any quantitative info? > I am wondering about: > Screen Size > Resolution > Dot Pitch > Vertical Frequency (Range) > Horizontal Frequency (Range) > BandWidth > Phosphor Type > Tilt Swivel Base > Anything else you think is relevant... > > <-Harvey > > PS. > I don't suppose you want to tell us who OEM'ed it for you? ;-) > > "Anyone who considers arithmetical methods of producing random digits > is, of course, in a state of sin." -Von Neumann > Harvey Taylor Meta Media Productions > uunet!van-bc!rsoft!mindlink!Harvey_Taylor > a186@mindlink.UUCP Yes I think that I can help. Here are the specs out of the manual: CRT: 14" (13" viewable), 90 degree deflection, 29mm neck, 0.31mm dot pitch non-glare screen. Display Color: TTL input - 8/16/64 colors Analog - Unlimited colors Input Signal: Video - TTL level positive Analog 0.5-0.7Vp-p/75 ohm positive Sync. - Separate sync. TTL level Horizonital sync. positive/negative Vertical sync. positive/negative Composite sync. TTL level positive/negative Composite sync, on green video sync. 0.3Vp-p negative Synchronization: Horizontal - 15Khz to 35Khz automatically Vertical - 50Hz to 80Hz automatically Resolution: 800x600 max. Video Bandwidth: 30Mhz (-3 dB) Miscovergence: Center 0.3mm max. Corner 0.5mm max. Power: Switching mode power supply AC 90V-132V or 180V-265V, 50Hz/60Hz Operating Temperate: -5 C to 40 C ambient Weight: 12.4 Kgs (net) It has a front mounted power switch, tilt-swivel base, side panel controls with overcan/normal switch, v-size, v-hold, h-center, v-center, brightness and contrast controls, and a text switch. The A1950 Multiscan monitor also comes with a DB15 VGA connector on the cable, a 15-pin to 9-pin adaptor for devices that require NEC multisync pinouts and a 23-pin to 15-pin adaptor for all Amiga models List Price: less than $800 and can be used with our Amigas or PC products alike. Scott (tired fingers) Hood C
ckp@grebyn.com (Checkpoint Technologies) (05/04/90)
In article <3244@rorschach.oakhill.UUCP> eric@rorschach.UUCP (Eric Quintana) writes: >> Resolution - 800 dot (H) x 600 Lines (V) >> >> With the A3000, all screen modes seem to work - 1280 x 400 (1440x480 overscan) >> and 640 x 960 and others. > >I'm confused. How does 1280 x 400 work on a monitor that only has 800 dots >horizontal resolution? Is the screen cropped? No, what happens is that the Amiga's pixels are too narrow horizontally to be individually perceivable. At the 1280 X nnn resolutions, if you light one pixel of a color, you won't necessarily see it and be able to tell it's color. -- First comes the logo: C H E C K P O I N T T E C H N O L O G I E S / / \\ / / Then, the disclaimer: All expressed opinions are, indeed, opinions. \ / o Now for the witty part: I'm pink, therefore, I'm spam! \/
daveh@cbmvax.commodore.com (Dave Haynie) (05/04/90)
In article <3244@rorschach.oakhill.UUCP> eric@rorschach.UUCP (Eric Quintana) writes: >>> Can you supply any quantitative info [ about the 1950 monitor ] ? >I'm confused. How does 1280 x 400 work on a monitor that only has 800 dots >horizontal resolution? Is the screen cropped? Most monitors are horizontally analog, in that there are an infinite number of possible dot positions across the screen. For example, video compatible monitors like the 1080. That's not to say that the average monitor is fast enough to resolve the associated pixel changes if you're trying to read text at that resolution, though the 1080s I've seen this on do a fair job. You've seen this effect before, though you may not notice it. If you've ever compared Amiga video titling to the kind you see on "Wide World of Sports" or other TV shows, the Amiga occasionally comes up lacking. That's because it is spitting out 720 or do dots/line (assuming overscan). Really good titling boxes spit out about 1400 dot/line, and I've heard some are even going to 2000 something. You know you can't even read 640 dot computer text on a TV, but what you can see on a TV is accurate but widely spaced high resolution pixel changes. What this means in plain terms is, in 1400 dots/line mode (again assuming interlace), Amiga titles will look much less jaggy than they do in 720 dots/line mode. I guess the main point of the ECS Denise was to give you a cheap 640x480 31kHz non-interlaced display that could drop into any A500/A2000. The 640x960 31kHz interlaced and the 1200xN 15kHz modes were sort of side effects. At least the latter have some real uses on the Amiga, but they're not the CAD-type uses folks think of when you mention "1200xN". >Eric Quintana -- Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests" {uunet|pyramid|rutgers}!cbmvax!daveh PLINK: hazy BIX: hazy "I have been given the freedom to do as I see fit" -REM
rjtatz@hpuxa.ircc.ohio-state.edu (Robert J. Tatz) (05/04/90)
In article <3244@rorschach.oakhill.UUCP> eric@rorschach.UUCP (Eric Quintana) writes: >>> Can you supply any quantitative info [ about the 1950 monitor ] ? > >> Resolution - 800 dot (H) x 600 Lines (V) >>Bob rjtatz@hpuxa.ircc.ohio-state.edu > >I'm confused. How does 1280 x 400 work on a monitor that only has 800 dots >horizontal resolution? Is the screen cropped? >Eric Quintana I was quoting the CBM spec sheet for the A1950 monitor. I admit to being confused to the quoted resolution versus the observed resolution. The 1280 x 400 mode looks OK on the screen. My guess is the horizontal resolution is actually 1600 dots with faster pixels. The 640 x 960 resolution has the Workbench screen kinda falling off the corners. So maybe someone with more technical experience with "definitions" of resolution might have a better idea of the quoted resolution versus the actual. .std disclaimer Bob rjtatz@hpuxa.ircc.ohio-state.edu
hood@cbmvax.commodore.com (Scott Hood) (05/05/90)
In article <3244@rorschach.oakhill.UUCP> eric@rorschach.UUCP (Eric Quintana) writes: >>> Can you supply any quantitative info [ about the 1950 monitor ] ? > >> Resolution - 800 dot (H) x 600 Lines (V) >> >> With the A3000, all screen modes seem to work - 1280 x 400 (1440x480 overscan) >> and 640 x 960 and others. > >I'm confused. How does 1280 x 400 work on a monitor that only has 800 dots >horizontal resolution? Is the screen cropped? > >>Bob rjtatz@hpuxa.ircc.ohio-state.edu > >Eric Quintana I think you are confused. Think of the monitor in terms of dot pitch and video bandwidth. Since the 1280 mode (more with overscan) the pixels are 35nS in width (~28.6Mhz) and the 30Mhz bandwidth of the 1950 is quite up the task of showing the `Superhires' video modes. Scott
sparks@corpane.UUCP (John Sparks) (05/07/90)
daveh@cbmvax.commodore.com (Dave Haynie) writes: >I guess the main point of the ECS Denise was to give you a cheap 640x480 >31kHz non-interlaced display that could drop into any A500/A2000. The >640x960 31kHz interlaced and the 1200xN 15kHz modes were sort of side >effects. At least the latter have some real uses on the Amiga, but they're >not the CAD-type uses folks think of when you mention "1200xN". What about if you use a monitor that is capable of displaying that high of a resolution? Does it become CAD usable then? I am thinking of the multisync 3D by NEC, it should handle it. I use it at 1024 X 768 resolution all the time on my Compaq with AutoCAD. But it may not be able to go down to 15Khz. But I am sure there are some monitors out there that can handle it. Or maybe Microway will come out with a new version of their flicker fixer. That will boost the frequency to 31Khz or so. -- John Sparks | D.I.S.K. 24hrs 2400bps. Accessable via Starlink (Louisville KY) sparks@corpane.UUCP | | PH: (502) 968-DISK A virtuous life is its own punishment.
wahlmann@m.cs.uiuc.edu (05/08/90)
/* Written 5:13 pm May 3, 1990 by hood@cbmvax.commodore.com in m.cs.uiuc.edu:comp.sys.amiga */ In article <1625@mindlink.UUCP> a186@mindlink.UUCP (Harvey Taylor) writes: >In <11177@cbmvax.commodore.com>, hood@cbmvax.commodore.com (Scott Hood) >writes: >> [...] >> The 1950 is just a very good multiscan monitor. >> >> Scott > > Can you supply any quantitative info? > I am wondering about: > Screen Size > Resolution > Dot Pitch > Vertical Frequency (Range) > Horizontal Frequency (Range) > BandWidth > Phosphor Type > Tilt Swivel Base > Anything else you think is relevant... > > <-Harvey > > PS. > I don't suppose you want to tell us who OEM'ed it for you? ;-) > > "Anyone who considers arithmetical methods of producing random digits > is, of course, in a state of sin." -Von Neumann > Harvey Taylor Meta Media Productions > uunet!van-bc!rsoft!mindlink!Harvey_Taylor > a186@mindlink.UUCP Yes I think that I can help. Here are the specs out of the manual: CRT: 14" (13" viewable), 90 degree deflection, 29mm neck, 0.31mm dot pitch non-glare screen. Display Color: TTL input - 8/16/64 colors Analog - Unlimited colors Input Signal: Video - TTL level positive Analog 0.5-0.7Vp-p/75 ohm positive Sync. - Separate sync. TTL level Horizonital sync. positive/negative Vertical sync. positive/negative Composite sync. TTL level positive/negative Composite sync, on green video sync. 0.3Vp-p negative Synchronization: Horizontal - 15Khz to 35Khz automatically Vertical - 50Hz to 80Hz automatically Resolution: 800x600 max. Video Bandwidth: 30Mhz (-3 dB) Miscovergence: Center 0.3mm max. Corner 0.5mm max. Power: Switching mode power supply AC 90V-132V or 180V-265V, 50Hz/60Hz Operating Temperate: -5 C to 40 C ambient Weight: 12.4 Kgs (net) It has a front mounted power switch, tilt-swivel base, side panel controls with overcan/normal switch, v-size, v-hold, h-center, v-center, brightness and contrast controls, and a text switch. The A1950 Multiscan monitor also comes with a DB15 VGA connector on the cable, a 15-pin to 9-pin adaptor for devices that require NEC multisync pinouts and a 23-pin to 15-pin adaptor for all Amiga models List Price: less than $800 and can be used with our Amigas or PC products alike. Scott (tired fingers) Hood C /* End of text from m.cs.uiuc.edu:comp.sys.amiga */