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- Newsgroups: comp.sys.apollo
- Path: sparky!uunet!usc!sol.ctr.columbia.edu!destroyer!ubc-cs!unixg.ubc.ca!physics.ubc.ca!unruh
- From: unruh@physics.ubc.ca (William Unruh)
- Subject: Update: monitors on 2500
- Message-ID: <unruh.713836194@physics.ubc.ca>
- Summary: Update: Monitors on 2500
- Keywords: monitors,2500
- Sender: news@unixg.ubc.ca (Usenet News Maintenance)
- Nntp-Posting-Host: physics.ubc.ca
- Organization: University of British Columbia, Vancouver, B.C., Canada
- Date: Fri, 14 Aug 1992 23:49:54 GMT
- Lines: 18
-
- As I stated earlier the monitors on my 2500 ( 15") blew. After ttrying
- to repare them I went to the Surplus equip store on campus here and
- found they had some 19" monitors from some old 3500 on sale- no cables.
- They work! And the cable that worked was a cheap $6.00 IBM Monochrome
- monitor extention cable. They were a bit dim, but after some
- trepedation, I tweaked the sub threshold(?) pot inside a tiny amount
- and now they are fine. How does the 2500 Know tht there is a high res
- monitor attached to the system rather than a 1024X800? ( What weas
- interesting was that if I drove it via a Sun Mono cable, It would come
- up in low res mode- Teh sun cable has 2-7-8 shorted together. Do they as
- someone suggested use one of the lines (2or 7) to tell which monitor it
- is?
- And why did the monitor sync at low res since both the hor and vert are
- rather different between the two. Are they really multisyncs in
- disguise, or would they burn out driven at the low res mode?
- Bill Unruh
- unruh@physics.ubc.ca
-
-