Re: Newbie Apple IIgs questions

["Michael J. Mahon" <mjmahon@aol.com>]

David Murray wrote:
> Okay.. well, I answered a lot of my own questions today.
>
> First of all, the power supply is bad, that is why it works without a 
> floppy but not with.  I know this because I was given two IIgs systems and 
> the other one works.  So I swapped the power supplies and the problem 
> follows the power supply, not the system.  

Good diagnostic work.  ;-)

> Secondly, I get color once the OS starts loading, but for some reason the 
> control panel wouldn't give color.  Of course, I was surprised to see that 
> same nasty color-phase-shift problem that older Apple's suffered from.  I 
> thought surely by the time the IIgs was out Apple would have fixed that 
> problem.  That is such a disappointment.  I'll try building that adapter to 
> connect to my Amiga monitor's RGB input and I can pray that maybe it will 
> look better there.  

The color "aliasing" that you see on a composite video display is
not an "error", but the correct functioning of the method used to
create a color display.  It's just that in a text display, for example,
you'd rather not see the colors.

Intrinsic color bandwidth limitations of a composite video signal
prevent producing high-resolution color images.

RGB is totally different, and you will see exactly what you hope for.

A separate luminance-chrominance video signal (as used by some C=64
systems) can support better monochrome resolution and less color
artifacting.

-michael

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