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       # TWINHEAD INTERNATIONAL CORPORATION
       
          CT-8490
       
          Card Type                    Video card                        
          Video Chip Set               Unidentified                      
          Maximum Video Memory         Unidentified                      
          Video Types Supported        Monochrome, CGA, EGA, VGA         
          Highest Resolution Supported 800 x 600                         
          Data Bus                     8-bit ISA                         
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |         Function         | Label |    Function     | Label |
          |--------------------------+-------+-----------------+-------|
          | VGA feature connector    |  CN1  | 9-pin TTL video |  CN3  |
          |                          |       | connector       |       |
          |--------------------------+-------+-----------------+-------|
          | 15-pin Analog video      |  CN2  |                 |       |
          | connector                |       |                 |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Function                | Label | Position  |
          |----------------------------------------+-------+-----------|
          | ยป | CT-8490 is primary display card    | SW1/5 |    On     |
          |---+------------------------------------+-------+-----------|
          |   | CT-8490 is secondary display card  | SW1/5 |    Off    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   MONITOR TYPE SELECTION                   |
          |------------------------------------------------------------|
          |      Monitor      |  SW1/1   |  SW1/2  |  SW1/3  |  SW1/4  |
          |-------------------+----------+---------+---------+---------|
          |    Monochrome     |    On    |   On    |   On    |   On    |
          |-------------------+----------+---------+---------+---------|
          |        CGA        |   Off    |   On    |   On    |   On    |
          |-------------------+----------+---------+---------+---------|
          |        EGA        |    On    |   Off   |   On    |   On    |
          |-------------------+----------+---------+---------+---------|
          |        VGA        |    On    |   On    |   On    |   Off   |
          |-------------------+----------+---------+---------+---------|
          | Monochrome (PS/2) |   Off    |   On    |   On    |   Off   |
          |-------------------+----------+---------+---------+---------|
          |   MultiSync TTL   |   Off    |   Off   |   On    |   On    |
          |-------------------+----------+---------+---------+---------|
          | MultiSync analog  |   Off    |   On    |   On    |   Off   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   DISPLAY MODE SELECTION                   |
          |------------------------------------------------------------|
          |             Setting             | SW1/6  | SW1/7  | SW1/8  |
          |---------------------------------+--------+--------+--------|
          | Lock at monochrome display mode |   On   |  Off   |   On   |
          |---------------------------------+--------+--------+--------|
          |    Lock at CGA display mode     |  Off   |   On   |   On   |
          |---------------------------------+--------+--------+--------|
          |    Lock at EGA display mode     |   On   |   On   |  Off   |
          |---------------------------------+--------+--------+--------|
          |    Lock at VGA display mode     |   On   |   On   |  Off   |
          |---------------------------------+--------+--------+--------|
          |    Lock at VGA display mode     |   On   |   On   |  Off   |
          |---------------------------------+--------+--------+--------|
          |       Set at auto switch        |   On   |   On   |   On   |
          |---------------------------------+--------+--------+--------|
          |       Set at auto switch        |   On   |   On   |   On   |
          +------------------------------------------------------------+