Re: CGA monitor on a Laser 128

[pubpc1@library.ucla.edu]

jruschme@hiway1.exit109.com (John Ruschmeyer) wrote:
>In article <5i3a7l$40s$1@news3.alpha.net>,
>bheinz  <bheinz@hawk.phantasy.com> wrote:
>>John Ruschmeyer <jruschme@hiway1.exit109.com> wrote:
>><snip>
>>: Taking a page from the recent Laser 128 discussions, I've also pulled
>>: mine out of storage and set it up. Personally, I've decided to go the
>>: color monitor route by using an old IBM CGA monitor and a Laser 128 RGB
>>: cable. I won't get a chance to try it until this weekend, but I suspect
>>: it should work very well.
>>
>>I'm not sure that a CGA monitor will work with the Laser, depending on the
>>refresh rate of the monitor (it needs to be 15Mhz, not the modern standard
>>30, but and old CGA MAY support this.)
>
>Well, I finally got to try it this weekend and it seems to work. 40-col
>mode looks great. I am getting some "tearing" of characters in 80-col mode,
>though. Perhaps it is my monitor, but I am getting results more like
>what I would expect from a color composite monitor.

Try flipping the color/mono switch on the Laser to mono.

>
>If I can find another one, I may try a differnt monitor to see if it
>makes a difference.
>
>I'm not sure I should be surprised, though. As I recall, CGA is little more
>than a color TV without *any* of the composite or demodulation cirtuitry.
>
><<<John>>>

The Laser works with both digital CGA and GS/Amiga style analog RGB.

Check out http://ground.isca.uiowa.edu/apple2/upload/laser.3000.A2.CLONE.GIF
      and http://ground.isca.uiowa.edu/apple2/upload/laserpics.gif

-Scott G.