JUKO LABORATORIES, LTD.
=======================

   G7-B

   Category                     Video                             
   Video Types Supported        Monochrome, CGA, EGA              
   Video Processor              Juko                              
   Highest Resolution Supported 640 x 400                         
   Data Bus Type                8-bit ISA                         
   Memory Type                  DRAM                              
   Maximum Onboard Memory       256KB (location unknown)          

<gopher://bitreich.org/I/th99/v/I-L/50442-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | 9-pin video port  |   CN1    | 25-pin parallel  |   CN8    |
   |                   |          | port - internal  |          |
   |-------------------+----------+------------------+----------|
   | Composite video   |   CN2    | 25-pin serial    |   CN9    |
   | jack              |          | port - internal  |          |
   |-------------------+----------+------------------+----------|
   | 9-pin mouse port  |   CN3    | 25-pin serial    |   CN10   |
   |                   |          | port - internal  |          |
   |-------------------+----------+------------------+----------|
   | 6-pin light pen   |   CN5    | Control cable    |   CN11   |
   | connector         |          | connector -      |          |
   |                   |          | floppy drive     |          |
   |-------------------+----------+------------------+----------|
   | 16-pin game port  |   CN7    |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           COMPOSITE COLOR DISPLAY CONFIGURATIONS           |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> |    Composite color selected    |    J1    | Pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> |  Clock frequency is 14.31818   |    J3    | Pins 1 & 2 |
   |   |              MHz               |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |                                |  J5/SW3  | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |   Composite color video mode   |  J5/SW4  | Pins 2 & 3 |
   |   |            selected            |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |                                |  J5/SW5  | Pins 1 & 2 |
   |   |                                |          |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |        COMPOSITE MONOCHROME DISPLAY CONFIGURATIONS         |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |   |    Composite mono selected     |    J1    | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> |  Clock frequency is 14.31818   |    J3    | Pins 1 & 2 |
   |   |              MHz               |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |                                |  J5/SW3  | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |   Composite mono video mode    |  J5/SW4  | Pins 1 & 2 |
   |   |            selected            |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |                                |  J5/SW5  | Pins 2 & 3 |
   |   |                                |          |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CGA DISPLAY CONFIGURATIONS                 |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> |  Clock frequency is 14.31818   |    J3    | Pins 1 & 2 |
   |   |              MHz               |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Vertical synchronize pulse is  |  J5/SW1  | Pins 1 & 2 |
   |   |            positive            |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> |  Horizontal synchronize pulse  |  J5/SW2  | Pins 1 & 2 |
   |   |          is positive           |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |                                |  J5/SW3  | Pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> |   CGA display mode selected    |  J5/SW4  | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |                                |  J5/SW5  | Pins 1 & 2 |
   |   |                                |          |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             MONOCHROME DISPLAY CONFIGURATIONS              |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |   |    Clock frequency is 16MHz    |    J3    | Pins 3 & 4 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Vertical synchronize pulse is  |  J5/SW1  | Pins 2 & 3 |
   |   |            negative            |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> |  Horizontal synchronize pulse  |  J5/SW2  | Pins 1 & 2 |
   |   |          is positive           |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |                                |  J5/SW3  | Pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |   Mono display mode selected   |  J5/SW4  | Pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |                                |  J5/SW5  | Pins 1 & 2 |
   |   |                                |          |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           640 X 400 COLOR DISPLAY CONFIGURATIONS           |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |     Clock frequency is 23.4MHz     |    J3    | Pins 5 & 6 |
   |                                    |          |   closed   |
   |------------------------------------+----------+------------|
   |   Vertical synchronize pulse is    |  J5/SW1  | Pins 2 & 3 |
   |              negative              |          |   closed   |
   |------------------------------------+----------+------------|
   |  Horizontal synchronize pulse is   |  J5/SW2  | Pins 2 & 3 |
   |              negative              |          |   closed   |
   |------------------------------------+----------+------------|
   |                                    |  J5/SW3  | Pins 1 & 2 |
   |                                    |          |   closed   |
   |------------------------------------+----------+------------|
   |  640 x 400 display mode selected   |  J5/SW4  | Pins 1 & 2 |
   |                                    |          |   closed   |
   |------------------------------------+----------+------------|
   |                                    |  J5/SW5  | Pins 2 & 3 |
   |                                    |          |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            MOUSE PORT (CN3) INTERRUPT SELECTION            |
   |------------------------------------------------------------|
   |          Setting           |              J2               |
   |----------------------------+-------------------------------|
   |>>    |        IRQ2         |       Pins 1 & 2 closed       |
   |------+---------------------+-------------------------------|
   |      |        IRQ3         |       Pins 3 & 4 closed       |
   |------+---------------------+-------------------------------|
   |      |        IRQ4         |       Pins 5 & 6 closed       |
   |------+---------------------+-------------------------------|
   |      |        IRQ5         |       Pins 7 & 8 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      MOUSE PORT MODE                       |
   |------------------------------------------------------------|
   |          Setting           |            J6/SW1             |
   |----------------------------+-------------------------------|
   |>> |        Enabled         |       Pins 1 & 2 closed       |
   |---+------------------------+-------------------------------|
   |   |        Disabled        |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  MOUSE PORT IRQ MATCHING                   |
   |------------------------------------------------------------|
   | Setting  |   J6/SW2   |   J6/SW3   |  J6/SW4   |  J6/SW5   |
   |----------+------------+------------+-----------+-----------|
   |>> | IRQ2 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 &  | Pins 2 &  |
   |   |      |   closed   |   closed   | 3 closed  | 3 closed  |
   |---+------+------------+------------+-----------+-----------|
   |   | IRQ3 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 &  | Pins 2 &  |
   |   |      |   closed   |   closed   | 3 closed  | 3 closed  |
   |---+------+------------+------------+-----------+-----------|
   |   | IRQ4 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 &  | Pins 2 &  |
   |   |      |   closed   |   closed   | 2 closed  | 3 closed  |
   |---+------+------------+------------+-----------+-----------|
   |   | IRQ5 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 &  | Pins 1 &  |
   |   |      |   closed   |   closed   | 3 closed  | 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              PARALLEL PRINTER PORT (CN8) MODE              |
   |------------------------------------------------------------|
   |          Setting           |            J4/SW1             |
   |----------------------------+-------------------------------|
   |>> |        enabled         |       Pins 1 & 2 closed       |
   |---+------------------------+-------------------------------|
   |   |        Disabled        |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    GAME PORT (CN7) MODE                    |
   |------------------------------------------------------------|
   |          Setting           |            J4/SW2             |
   |----------------------------+-------------------------------|
   |>> |        Enabled         |       Pins 1 & 2 closed       |
   |---+------------------------+-------------------------------|
   |   |        Disabled        |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               REALTIME CLOCK CONFIGURATIONS                |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> |   Clock assigned as timer 1    |    J7    | Pins 1& 2  |
   |   |           (340-35F)            |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |   Clock assigned as timer 2    |    J7    | Pins 2 & 3 |
   |   |           (240-25F)            |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> |        Timer uses IRQ4         |   J10    | Pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |        Timer uses IRQ4         |   J10    | Pins 3 & 4 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |        Timer uses IRQ4         |   J10    | Pins 5 & 6 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   |        Timer uses IRQ4         |   J10    | Pins 7 & 8 |
   |   |                                |          |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 2 (CN9) CONFIGURATION              |
   |------------------------------------------------------------|
   |        ADDRESS/IRQ         |      J8       |      J9       |
   |----------------------------+---------------+---------------|
   |        2F8-2FF/IRQ4        |    Closed     |    Closed     |
   |----------------------------+---------------+---------------|
   |       Port disabled        |     Open      |     Open      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 1 (CN10) CONFIGURATION             |
   |------------------------------------------------------------|
   |        ADDRESS/IRQ         |      J11      |      J12      |
   |----------------------------+---------------+---------------|
   |        3F8-3FF/IRQ4        |    Closed     |    Closed     |
   |----------------------------+---------------+---------------|
   |       Port disabled        |     Open      |     Open      |
   +------------------------------------------------------------+