Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!apple!veritas!amdcad!dgcad!dg-rtp!usenet
From: cassirer@batgirl.rtp.dg.com (Fred Cassirer)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Help with jumpering an EGA card
Message-ID: <1991Jan2.024022.15289@dg-rtp.dg.com>
Date: 2 Jan 91 02:40:22 GMT
Sender: usenet@dg-rtp.dg.com (Usenet Administration)
Organization: Data General Corporation
Lines: 68


 Can anyone tell me how to jumper this card to EGA?  I've got it 
 installed and norton tells me it is a CGA card, 
 Video Mode: Text, 80x25 Color.
 

                     32 pin _.               JP
                             |               12   J2
.----------------------------v----------------------------.
|DEGA              ::::::::::::::::  /\\\\/  :: ``````    |
|                                            `` ``````.---.
| [#####]   .------------.      [####]           JP3  | 1 = On
|           |            |     DM740518               | 2 = Off
| [#####]   |  Genoa     |    [######] 	  [######]    | 3 = On <== 6 pin dip 
|           |            |     8711       HD74LS153P  | 4 = On   switch
| [#####]   | GN006001-A |    [######]    [######]    | 5 = On
|           |            |  SN74LS244N    DM74LS174N  | 6 = Off
| [#####]   `------------'    [######]    [######]    `---'
|                           PA120L8ACNS   HD74LS32P       |
| [#####]   .----------.      .--------.  [######]        |
|           |          |      |D27128D |  HD74LS32P       |
| [#####]   |GN006002-A|      |        |    [####]        +.
|           |          |      `--------'   DM740518       |() <== Video 
| [#####]   |7016-0067 |                [#########]       +'        Jack
|           `----------'      [######]   HD74LS24SWP      +.
| [#####]                       244N                      |() <== Audio
`-------------.                                           +'        Jack
    ^         |                                           +-.
    |         |                                           | | <== DB9 
  Memory      |  |||||||||||||||||||||||||||||||||||||||| +-'     Connector
              |  |||||||||||||||||||||||||||||||||||||||| |
  726105-15   `-------------------------------------------'
  M5M4464P


 I bought it at a flea market for $20, I just assumed that it was jumpered
 to EGA.  The card is supposed to support both modes.  
 
 I have it installed in a DTK M/B with a Datatech 286 BIOS Ver 326 1986. 
 The setup program autoconfig's it as an EGA card but norton tells me it's
 CGA.  I have some programs that require EGA and they won't run so I'm 
 pretty sure it's in CGA mode.

 I've messed around with the jumpers but was unable to get it to
 do anything else.  The current jumper settings are as 
 follows

   JP
   12			Where ++ indicates a jumper
   ..      ......
   .+      ++.++.
   .+       JP3

I'm using the card with an Amiga 1080 Monitor, I'm assuming that the
monitor will display upto a VGA resolution (it's 640x400).

I don't know who makes the card, but the word "MITSUBA" is stamped on
the back, although someone did say it was made by GENOA (although there
is no such company listed in the US according to information)

Any help would be greatly appreciated.

						Thanx.
						 -Fred Cassirer

 /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
<  Fred Cassirer                           ...rti!dg.rtp.com!cassirer      >
<  Data General Corporation               Research Triangle Park, NC       >
 \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/