Re: WANTED: Apple III info

[spector@vax2.concordia.ca (Mitchell Spector)]

In article dempson@atlantis.actrix.gen.nz (David Empson) writes...
> 
>> 	Does this mean it's _safe_ to connect an Analog RGB monitor to
>> the Apple III's video port?
> 
>I wouldn't try it. The pinouts are almost identical, but the III is
>feeding TTL levels into the monitor, which might be out of range for
>the analog RGB monitor.  I can't be sure of this, without having a
>closer look at the resistor network and ratings of the various devices.

	When connecting the AppleColor RGB to the III, the video-image is 
stable, sharp and clear. The only problem (using the default cable supplied 
with pin-outs for a IIgs) is color information is incorrect. You'll see
repeating color patterns, colors that don't match what they should be or 
colors that are not displayed period. I doubt I'll try this again though,
I no longer have that monitor and I'm not going to risk my other two...

	I was able to get bursts of color information from the NTSC out
port btw (RCA-connector). Usually, when you connect a color composite
display to the Apple III, the output will be monochrome. However, if you
fiddle with the connector, color is displayed (not random colors, but the
correct colors -- a bit faded though).

>David Empson
>dempson@actrix.gen.nz
>Snail mail: P.O. Box 27-103, Wellington, New Zealand

Mitchell Spector
m_spect@pavo.concordia.ca / spector@vax2.concordia.ca