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From: phil@brahms.amd.com (Phil Ngai)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Sony CPD-1304 MultiScan HG Monitor
Keywords: Sony 1304 EGA VGA
Message-ID: <1991Jan14.211413.28433@amd.com>
Date: 14 Jan 91 21:14:13 GMT
References: <14248@milton.u.washington.edu>
Sender: usenet@amd.com (NNTP Posting)
Distribution: usa
Organization: Advanced Micro Devices, Inc; Sunnyvale, CA
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In article <14248@milton.u.washington.edu> scalawag@blake.u.washington.edu (Keith Frederick) writes:
|
| I've almost decided to purchase a Sony 1304 Monitor but read the following
|in PC Sources: "The Seiko and Sony monitors, as well as the Relisys RE-1520
|support 640-by-480 VGA through 1,024-by-768 8514/A (non-interlaced and
|interlaced) resolution.  These monitors do not, however, support lower 
|resolution digital standards."  This is from the Dec. 1990 PC Sources.

It's true. The Sony 1304 has a very high lower frequency limit for a
"multi-sync" monitor (28 KHz). This is much too high for an EGA board,
which requires around 22 KHz.

Note the key word here in PC Sources' quote: DIGITAL. VGA boards are
ANALOG. Anything digital is CGA, monochrome, or EGA. This does not
include VGA boards emulating lower resolution.

The PC Source guys are 100% correct but perhaps a little subtle for
people not intimate with the nitty gritty details of PC displays.

|However, a sales person at the local computer store said the Sony does
|support EGA and up.  Who is right?  Does PC Sources mean only digitial boards

That's what you get for asking a sales type.

|or what?  It would be a shame not to be able to play those neato 320x200x256
|VGA games (and basically, any game!!!).

You can display any standard VGA resolution on the 1304 because all standard VGA
resolutions use the same horizontal frequency: 31 KHz. They achieve the
lower resolutions by various means, including increasing the vertical
refresh (as high as 70 Hz) and "double-scanning" the vertical lines.
This includes the VGA's EGA emulation mode.

Thus we can see that with the lower price and versatility of VGA cards no
one in their right mind would buy anything else and therefore the Sony
1304, being fully compatible with all VGA modes, is a product that should
satisfy anyone who needs a 14 inch VGA monitor.

(note: I don't even own a 1304, but I looked at them.)

--
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           b. The armed citzenry, as distinct from the regular army.