UNIDENTIFIED

EGA-PC/D SM

Category                  Video
Video Types Supported     CGA, monochrome, EGA
Video Processor           Unidentified
Highest Resolution        800 x 600
Supported
Data Bus Type             8-bit ISA
Memory Type               DRAM
Maximum Onboard Memory    Unidentified

[Image]

                                CONNECTIONS

        Purpose          Location            Purpose           Location

  9-pin digital video       CN1        VESA Feature               J1
  port                                 connector

  RCA video connector       CN2        Replaceable               OSC3
                                       oscillator

  RCA video connector       CN3

  FACTORY CONFIGURED SETTINGS

     Jumper         Setting

     SW1/7            Off

     SW1/8            Off

                               MONITOR TYPE

                 Setting                                 P1

  »                  ECD                         Pins 2 & 3 closed

              RGB or monochrome                  Pins 1 & 2 closed

                             I/O ADDRESS RANGE

            ADDRESS RANGE                              P3

  »                3xxh                         Pins 2 & 3 closed

                   2xxh                         Pins 1 & 2 closed

                                 AUTOMODE

              Setting                       P4                 P6

  »             Enabled                 Pins 1 & 2      Pins 2 & 3 closed
                                          closed

                Disabled                Pins 2 & 3      Pins 1 & 2 closed
                                          closed

                         EXPANSION SLOT SELECTION

                 Type                                  P5

  »                Other                        Pins 1 & 2 closed

               IBM PC slot 8                    Pins 2 & 3 closed

                       SINGLE MONITOR CONFIGURATIONS

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

  »   ECD high resolution     Off          On          On         Off

          RGB 40 x 25          On         Off         Off          On

          RGB 80 x 25         Off         Off         Off          On

      ECD low resolution       On          On          On         Off

          Monochrome          Off         Off          On         Off

              CARD ATTACHED TO PRIMARY MONITOR CONFIGURATIONS

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

  »            ECD high              Off        On        On        Off
        resolution/monochrome

        RGB 40 x 25/monochrome       On        Off       Off        On

        RGB 80 x 25/monochrome       Off       Off       Off        On

                ECD low              On         On        On        Off
        resolution/monochrome

        Monochrome/RGB 80 x 25       Off       Off        On        Off

        Monochrome/RGB 40 x 25       On        Off        On        Off

             CARD ATTACHED TO SECONDARY MONITOR CONFIGURATIONS

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

  RGB 40 x 25/monochrome        On         On          Off         On

  RGB 80 x 25/monochrome       Off         On          Off         On

     Monochrome/ECD low         On         Off         On          On
        resolution

    Monochrome/ECD high        Off         Off         On          On
        resolution

  Monochrome/RGB 40 x 25        On         On          On          On

  Monochrome/RGB 80 x 25       Off         On          On          On

                               POWER-ON MODE

            Resolution/Monitor type                SW1/5          SW/6

  »                   EGA/all                        On            On

            MDA-Hercules/ECD-monochrome             Off            On

                    CGA/ECD-RGB                      On           Off

                            MISCELLANEOUS NOTES

     OSC3 must be replaced with a 19.5 MHz oscillator when the card is
                       configured for Hercules mode.

    OSC3 must be removed when the VESA feature connector (J1) is used.