STB SYSTEMS, INC.

CHANNEL 4G

Category                   Video
Video Types Supported      XVGA
Video Processor            Unidentified
Highest Resolution         1280 x 1024
Supported
Data Bus Type              16-bit ISA
Memory Type                DRAM
Maximum Onboard Memory     4MB (1MB of on-board DRAM per port)

[Image]

                                CONNECTIONS

      Purpose          Location             Purpose            Location

  VGA feature            CN1        Coax connector (Port 1)       P2
  connector

  VGA feature            CN2        Coax connector (Port 2)       P3
  connector

  VGA feature            CN3        Coax connector (Port 3)       P4
  connector

  VGA feature            CN4        Coax connector (Port 4)       P5
  connector

  VGA connector           P1        Refresh signal                P6
                                    synchronization
                                    connector

                           COLOR TYPE SELECTION

    Type           J8              J9            J10             J11

    Color       Pins 1 & 2     Pins 1 & 2     Pins 1 & 2      Pins 1 & 2
                 closed          closed         closed         closed

    Mono        Pins 2 & 3     Pins 2 & 3     Pins 2 & 3      Pins 2 & 3
                 closed          closed         closed         closed

                NTSC/PAL OUTPUT CONFIGURATION

       Setting               J13                  J14

        NTSC           Pins 1 & 2 closed   Pins 1 & 2 closed

         PAL           Pins 2 & 3 closed   Pins 2 & 3 closed

       CRYSTAL FREQUENCY SELECTION

       Setting               J12

       Master         Pins 1 & 2 closed

        Slave         Pins 2 & 3 closed

   BOARD IDENTIFICATION SELECTION

  Board    SW1/1    SW1/2    SW1/3

    0       Off      Off      Off

    1       Off      Off       On

    2       Off       On      Off

    3       Off       On       On

    4       On       Off      Off

    5       On       Off       On

    6       On        On      Off

    7       On        On       On

  FACTORY CONFIGURED - DO NOT ALTER

      Switch            Position

       SW1/4               Off