chaiklin@cunixf.cc.columbia.edu (Seth Chaiklin) (07/07/90)
I have a 1084S monitor on an Amiga 500. I have noticed that the color and tint adjustment knobs on this monitor have no effect on the display. I have tried them under a variety of circumstances (e.g., in Workbench, in various games), but they do not seem to work. Should they be working? Or are they included for another reason? I couldn't get any enlightenment from the manual. Any advice would be appreciated. Thanks, Seth ------------------------------------------------------------------------------ Seth Chaiklin Institute for Learning Technologies (212) 678-3899 Box 8, Teachers College, Columbia University, NYC 10027 INTERNET: chaiklin@cunixf.cc.columbia.edu UUCP: seth@ny-yn ------------------------------------------------------------------------------
phoenix@ms.uky.edu (R'ykandar Korra'ti) (07/07/90)
In article <1990Jul7.064455.10507@cunixf.cc.columbia.edu> chaiklin@cunixf.cc.columbia.edu (Seth Chaiklin) writes: >[My colour and tint knobs on my 1084s don't work] > Seth That's because you're using the RGB hookup and this information is provided by the computer (sort of. Colour and tint knobs control the levels of R, G, and B and their ratios, respectively. If you're sending separately controlled signals - as you are with the RGB analogue hookup - you already have control over this at the source.) Those knobs are there for users who are using the 1084 with a composite signal, wherein you don't have direct machine control over the individual colour levels and, for that matter, you often have artifacting and colour balance problems that _need_ correcting. (At least, I think they work in that mode. I've never tried it myself, as I have a separate monitor for the C128...) - R'ykandar. -- | R'ykandar Korra'ti | Editor: LOW ORBIT Science and Fiction | PLink: Skywise | | Elfinkind, Unite! | phoenix@ms.uky.edu | phoenix%ms.uky.edu@ukcc.bitnet | | "Hi! We're evangelical Hari-Krishna pedophiles for LaRouche! Would you like | | to see some of our fine Amway products?" - TRHMS | CIS 72406,370/LOW ORBIT |
dougp@voodoo.ucsb.edu (07/08/90)
-Message-Text-Follows- In article <1990Jul7.064455.10507@cunixf.cc.columbia.edu>, chaiklin@cunixf.cc.columbia.edu (Seth Chaiklin) writes... > >I have a 1084S monitor on an Amiga 500. I have noticed that >the color and tint adjustment knobs on this monitor have >no effect on the display. I have tried them under a variety > > Seth On my 1080, the color and tint only work for the composit input, the monitor treats RGB as absolute, and only the brightness and contrast work for RGB. Douglas Peale
grr@cbmvax.commodore.com (George Robbins) (07/08/90)
In article <1990Jul7.064455.10507@cunixf.cc.columbia.edu> chaiklin@cunixf.cc.columbia.edu (Seth Chaiklin) writes: > > I have a 1084S monitor on an Amiga 500. I have noticed that > the color and tint adjustment knobs on this monitor have > no effect on the display. Tint and Color affect the decoding of NTSC composite video and have no effect on the RGB inputs, which presumably don't need this sort of compensation. -- George Robbins - now working for, uucp: {uunet|pyramid|rutgers}!cbmvax!grr but no way officially representing: domain: grr@cbmvax.commodore.com Commodore, Engineering Department phone: 215-431-9349 (only by moonlite)
lshaw@walt.cc.utexas.edu (logan shaw) (07/08/90)
In article <1990Jul7.064455.10507@cunixf.cc.columbia.edu> chaiklin@cunixf.cc.columbia.edu (Seth Chaiklin) writes: > >I have a 1084S monitor on an Amiga 500. I have noticed that >the color and tint adjustment knobs on this monitor have >no effect on the display. I have tried them under a variety >of circumstances (e.g., in Workbench, in various games), but >they do not seem to work. Should they be working? Or are >they included for another reason? I couldn't get any >enlightenment from the manual. Any advice would be >appreciated. My guess is that it's because you're using it in RGB mode, where the color and hue controls don't make sense. To adjust the hue, you'd have the reds, greens, and blues with each other in certain amounts and then split them up again to get and RGB signal. In other words, the hue control doesn't work because the red, green, and blue are separate and that makes a hue control a pain to implement. (Also, you probably don't need it with RGB and it would degrade the signal quality.) They _DO_ work in Composite (CVBS) mode, though. Hook your 1084 up to a composite video source like a VCR and try them out. > >Thanks, > Seth No problem. >------------------------------------------------------------------------------ >Seth Chaiklin Institute for Learning Technologies >(212) 678-3899 Box 8, Teachers College, Columbia University, NYC 10027 >INTERNET: chaiklin@cunixf.cc.columbia.edu UUCP: seth@ny-yn >------------------------------------------------------------------------------ ============================================================================ "The machine minded material man Logan Shaw desperately dreams of a brand new sedan. lshaw@ccwf.cc.utexas.edu Wlll he expect long lasting gain ======================== from a toy that will race then rust in the rain?" - elim Hall, Things Break