Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!aplcen!haven!purdue!mentor.cc.purdue.edu!hopf.math.purdue.edu!wilker
From: wilker@hopf.math.purdue.edu (Clarence Wilkerson)
Newsgroups: comp.sys.ibm.pc
Subject: How to adapt PGA monitor to VGA card ?
Keywords: PGA, VGA
Message-ID: <11201@mentor.cc.purdue.edu>
Date: 31 May 90 20:36:23 GMT
References: <MEISSNER.90May31143733@curley.osf.org> <952@ashton.UUCP> <12661@netcom.UUCP>
Sender: news@mentor.cc.purdue.edu
Reply-To: wilker@hopf.math.purdue.edu (Clarence Wilkerson)
Distribution: usa
Lines: 8


I recall having seen used PGA monitors being advertised for use with
VGA cards. Looking at the pinouts, one obvious problem is the the 
PGA monitor takes a combined horizontal and vertical sync signal, while
the VGA adaptor puts out separate syncs. The frequencies are slightly
different by a percent or so, but I assume one can adjust that slightly.
Any points to the rest of the adaptation ( especially the sync problem?).
Thanks, Clarence Wilkerson