Re: A problem with Second Sight

[Rubywand <rubywand@swbell.net>]

James D. Keim wrote:
> 
> Rubywand (rubywand@swbell.net) wrote:
> : juntunen@hotmail.com writes ...
> : >
> : > I have a Second Sight card installed into my IIgs and the other day I went to
> : > try and use Inwords but it just locked the computer up.
> : > ....
> : >
> : > Also, is it just my imagination or does the Second Sight card seem to make the
> : > gs more unstable?  It seems like I have to reboot my machine more often
> : > because of something or the other crashing.
> : > ....
> ....
> 
> Rubywand,
> 
> Um, nice information and probably worthwhile.  However, you've missed
> the most obvious problem.  Inwords uses the DHR display.  The
> SecondSight cannot emulate the DHR display and locks up the system
> when a program tries the use it.  It is not a power problem.
> ....
> 

     Good points. If SS always messes up with Inwords, then doing the PS
mods would not eliminate the problem. Thanks for the information.




> My guess is that the system will likely run just fine with fewer
> modifications--say just adding a better power supply (a Buggie unit,
> or one of the drop in replacements sold by some of the Apple II
> resellers that advertise here).
>

     Yes; if the system should exhibit crashes due to glitching,
fattening the PS leads or swapping in any good power supply with
significantly heavier +5, +12, and GND leads will help. Actually, the
standard GS power supply has ample rated capacity for most
configurations. What matters most is that the PS has low Resistance +5,
+12, and GND leads.

     Just heavier PS leads may not be enough, especially when the GS is
a ROM-01 model. The motherboard Slot power traces are pretty skimpy. If,
besides the SS card, an accelerator card is installed, then, it is
virtually certain that the system will glitch unless both heavy PS leads
and on-motherboard jumpers are added.


> For what it's worth, the "bug" that has hit this user can also be
> experienced by running PublishIt or any Appleworks Timout macro that
> uses the DHR screen (page preview and paint, for example).
>

     That's good to know. Are there any other known non-PS-related
causes for SS bombs?




Rubywand