
TANDY / RADIO SHACK CORPORATION

SVGA WINDOWS ACCELERATOR ADAPTER (250-4055)

Card Type                 Video card
Video Processor           Unidentified
Maximum Onboard Memory    1MB DRAM
I/O Options               VGA feature connector
Data Bus                  16-bit ISA
Video Types Supported     XVGA
Highest Resolution        1280 x 1024
Supported

[Image]

                                CONNECTIONS

          Function            Label            Function             Label

  15-pin analog video port     J1     VGA feature connector          J2

                        USER CONFIGURABLE SETTINGS

                   Setting                       Label        Position

     Zero wait states enabled                    W2           Closed

      Zero wait states disabled                   W2            Open

     Monitor uses 31.5KHz horizontal            SW1/5          Off
      frequency

      Monitor uses 40KHz horizontal              SW1/5           On
      frequency

                 VERTICAL FREQUENCY SELECTION - 800 X 600

          Setting                    SW1/1                  SW1/2

             56Hz                    Off                    Off

              56Hz                    On                      On

              60Hz                    Off                     On

              72Hz                    On                     Off

                 VERTICAL FREQUENCY SELECTION - 1024 X 768

            Setting                     SW1/3                SW1/4

         43Hz, interlaced               Off                  Off

                60Hz                     Off                   On

                70Hz                      On                  Off

                72Hz                      On                   On

