UNIDENTIFIED
============

   EGA-PC/D SM

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

<gopher://bitreich.org/I/th99/v/U-Z/50456-1.png>
   

   +------------------------------------------------------------+
   |                        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 closed | Pins 2 & 3 closed |
   |---+----------------+-------------------+-------------------|
   |   |    Disabled    | Pins 2 & 3 closed | Pins 1 & 2 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 Monitor  | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
   |----------------------------+-------+-------+-------+-------|
   |   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.                          |
   +------------------------------------------------------------+