MAGNAVOX

VGA VIDEO ADAPTER

Category                  Video
Video Types Supported     VGA
Video Processor           82C451
Highest Resolution        640 x 480
Supported
Data Bus Type             16-bit ISA
Memory Type               VRAM
Maximum Onboard Memory    Unidentified

[Image]

                                CONNECTIONS

       Purpose           Location            Purpose           Location

  15-pin analog video      CN1        VGA Feature Connector       CN3
  port

  9-pin digital video      CN2
  port

                       SINGLE VGA CARD CONFIGURATION

     Setting         SW1/1          SW1/2         SW1/3         SW1/4

       MD             Off            Off           On            Off

  ED 350 Lines        Off            On            On            Off

  ED 200 Lines         On            On            On            Off

    CD 80x25          Off            Off           Off            On

    CD 40x25           On            Off           Off            On

  Note: MD = Monochrome Display, ED = Enhanced Color Display, CD = Color
  Display.

                       DUAL VIDEO CARD COFIGURATION

     Primary        Secondary     SW1/1      SW1/2      SW1/3     SW1/4
    Adapter         Adapter

  EGA with MD     CGA 80X25 or     Off        Off        On        Off
                      none

  EGA with MD     CGA 40 X 25       On        Off        On        Off

   EGA with ED    MDA or none      Off         On        On        Off
   350 Lines

   EGA with ED    MDA or none       On         On        On        Off
   200 Lines

   EGA with CD    MDA or none      Off        Off        Off        On
     80x25

   EGA with CD    MDA or none       On        Off        Off        On
     40X25

   CGA 80X25      EGA with MD      Off         On        Off        On

   CGA 40X25      EGA with MD       On         On        Off        On

      MDA          EGA with ED     Off        Off        On         On
                   350 Lines

      MDA          EGA with ED      On        Off        On         On
                   200 Lines

      MDA         EGA CD 80X25     Off         On        On         On

      MDA         EGA CD 40X25      On         On        On         On

             MONITOR TYPE

      Setting            SW1/5

  Analog Monitor           On

  Digital Monitor         Off

                        FACTORY CONFIGURED SETTING

                Setting                               SW1/6

      Reserved for new version of                      N/A
               software.

                          BIOS JUMPERS

            Setting                    W2              W3

  16 bit BIOS for AT system or       Closed          Closed

    8 bit BIOS for XT system

    8 bit BIOS for AT system          Open            Open

                        VERTICAL INTERRUPT SETTING

                 Setting                                 W1

  »       Disables interrupts for each                  Open
              vertical sync pulse

          Enables interrupts for each                  Closed
              vertical sync pulse