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From: soh@pegasus.trl.oz.au (kam hung soh)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Connecting an Amiga to a TTL Monochrome monitor
Keywords: TTL, monochrome, monitor, cable, help
Message-ID: <2086@trlluna.trl.oz>
Date: 16 Aug 90 07:21:20 GMT
References: <816@beguine.UUCP>
Sender: root@trlluna.trl.oz
Reply-To: soh@pegasus.trl.oz.au (kam hung soh)
Organization: Telecom Research Laboratories, Melbourne, Australia
Lines: 17

I'd connected my old A1000 to a CGA-type TTL monitor.  The picture was
refreshingly
sharp in 640 x 256 (I had a PAL A1000) and almost usable in interlace
mode.  Them old
monitors have long persistence phosphor screens!  Unfortunately, the
monitor did not
display all colours (due to the digital input).

To do this, I had to invert the signals of the digital Red, Green and
Blue outputs
from the A1000 with a NOT chip.  Buy a chip prototype board & a chip
socket if you
don't want to burn the chip with your soldering iron.

---
Soh, Kam Hung      email: h.soh@trl.oz.au     tel: +61 03 541 6403 
Telecom Research Laboratories, P.O. Box 249, Clayton, Victoria 3168, Australia