VGA Adapter   (250-4043)            Settings            Faxback Doc. # 2130

Default Configuration:

Note: The VGA adapter defaults to VGA text mode.  If you are using the
board with the Tandy VGM-100 monochrome monitor or equivalent, the board
defaults to monochrome text mode.  If you are using a Tandy VGM-200 or
VGM-300 color monitor, the VGA adapter card defaults to 80 column color
text mode.  The VGA.EXE utility allows you to easily switch between color
and monochrome modes.

If you will be using your VGA adapter card in conjunction with another
video card and monitor combination or with a computer system that has
built-in video support, please refer to Appendix A for information on the
limitations of such configurations. 

    Dip       Default   
   Switch     Position     Note

     1          OFF        ON is for special multi-frequency displays.
     2          OFF        ON enables monochrome modes on color monitors.
     3          OFF        Not used.
     4          OFF        Not used

The primary video adapter configuration is set to color.  If you replace
the VGA adapter with a monochrome or CGA video display adapter, you need to
run the Setup Utility to switch the configuration to monochrome.  If you
replace the VGA adapter with an EGA adapter, it is not necessary to run the
Setup utility.

Feature Connector Clock Jumper:
 
This jumper allows your VGA adapter card
to use the clock input from the Video Feature Connector.  The default 
jumper setting (pins 1-2) is set at the factory for 132 column text modes.
Changing the jumper setting to pins 2-3 disables the 132 column text modes
and supports all signals on the Video Feature Connector.

NOTE:  The feature Connector Clock Jumper should be left in the default
factory setting on pins 1 and 2 for normal system use.

Make sure all dip switches are set to off and the W1 Feature Connector
Clock Jumper is set to pins 1 and 2 as shown:
   ┌───────────────────────┐
   │┌──────────────┐       │
   ││ ***    ***   │ ***   │   W1
   ││ ***    ***   │ ***   │
   ││ ***    ***   │ ***   │
   │└──────────────┘       │
   └───────────────────────┘
       1      2       3