UNIDENTIFIED

H-EGA CARD

Category                  Video card
Video Type                EGA/Monochrome
Video Processor           Unknown
Highest Resolution        800 x 600
Supported
Data Bus Type             8-bit ISA
Memory Type               DRAM
Maximum Onboard Memory    64KB (Location unknown)

[Image]

                                CONNECTIONS

        Purpose           Location           Purpose           Location

  9-pin analog video         CN1       Light pen connector        CN4
  port

  RCA connector 1            CN2       Feature connector          CN5

  RCA connector 2            CN3

                            MONITOR TYPE SELECT

      Type         SW1/1      SW1/2      SW1/3      SW1/4         J2

   Monochrome       Off        Off         On        Off       Pins 1 & 2
                                                                closed

  Standard RGB      Off        Off        Off         On       Pins 1 & 2
                                                                closed

  Enhanced RGB      Off         On         On        Off       Pins 2 & 3
                                                                closed

  Note: For EGA mode, SW1/5 should be set in the Off position. For
  compatible operation SW1/5 should be on.

                           DISPLAY CONFIGURATION

     Primary      SW1/1    SW1/2    SW1/3    SW1/4    SW1/5        J2
    Monitor

    40 column      On       Off      On       Off      Off     Pins 1 & 2
    standard                                                     closed
    RGB/Comp

    80 column      Off      Off      On       Off      Off     Pins 1 & 2
    standard                                                     closed
    RGB/Comp

  Note: These settings apply when the EGA card is used with an IBM
  color/graphics display, with EGA primary.

                           DISPLAY CONFIGURATION

     Primary      SW1/1    SW1/2    SW1/3    SW1/4    SW1/5        J2
    Monitor

    40 column      On       On       Off       On      Off     Pins 1 & 2
    standard                                                     closed
    RGB/Comp

    80 column      Off      On       Off       On      Off     Pins 1 & 2
    standard                                                     closed
    RGB/Comp

  Note: These settings apply when the EGA card is used with an IBM
  color/graphics display, with CGA primary.

                           DISPLAY CONFIGURATION

     Primary      SW1/1    SW1/2    SW1/3    SW1/4    SW1/5        J2
    Monitor

    40 column      On       Off      Off       On      Off     Pins 1 & 2
  standard RGB                                                   closed

    48 column      Off      Off      Off       On      Off     Pins 1 & 2
  standard RGB                                                   closed

    200 line       On       On       On       Off      Off     Pins 2 & 3
  enhanced RGB                                                   closed

    350 line       Off      On       On       Off      Off     Pins 2 & 3
  enhanced RGB                                                   closed

  Note: These settings apply when the EGA card is used with an IBM
  monochrome display, with EGA primary.

                           DISPLAY CONFIGURATION

     Primary      SW1/1    SW1/2    SW1/3    SW1/4    SW1/5        J2
    Monitor

    40 column      On       On       On        On      Off     Pins 1 & 2
  standard RGB                                                   closed

    80 column      Off      On       On        On      Off     Pins 1 & 2
  standard RGB                                                   closed

    200 line       On       Off      On        On      Off     Pins 2 & 3
  enhanced RGB                                                   closed

    350 line       Off      Off      On        On      Off     Pins 2 & 3
  enhanced RGB                                                   closed

  Note: These settings apply when the EGA card is used with an IBM
  monochrome display, with monochrome primary.

       FACTORY CONFIGURED SETTINGS

       Jumper              Setting

         J1           Pins 1 & 2 closed