4-53
(4)
Hard RAM
Use this option to create a Hard RAM disk in the T2200SX’s memory. When you
press the
space bar
or
backspace
key, the size of memory allocated for Hard
RAM increases and decreases. The amount of memory you can allocate for Hard
RAM depends on the size of extended memory.
(5)
Shadow BIOS ROM
Use this special feature of the T2200SX to copy BIOS functions from ROM to RAM
for faster access while you’re using the T2200SX. You must have at least 128KB of
extended memory to select
Enable
for this option. Since the BIOS subroutines are
accessed often, enabling this option significantly improves the T2200SX’s operating
speed.
Enable
Copies BIOS from BIOS ROM to RAM.
Disable
Accesses BIOS from BIOS ROM.
2.
Display
This group of options helps you configure the T2200SX’s display.
(1)
Display adapter
Use this option to choose the display adapter.
VGA compatible
Chooses the internal adapter for the VGA display. This is the
default setting.
Not used
Chooses an external adapter installed in the Desk Station IV.
(2)
LCD Display Mode
Use this option to select whether the display will use the color or monochrome mode.
Color
Selects the 80x25 text or 640x480 graphics modes. This option
also affects a color monitor attached to the RGB port. This is
the default setting.
Monochrome
Selects the monochrome mode and simulates 64 levels of gray
with the LCD’s 16-level gray scale. This mode is also used
when you attach a VGA monochrome monitor to the RGB
port.
(3)
LCD Gray Scale
This option specifies the relationship between the brightness levels for characters
displayed in normal and intense display modes. A setting of
Bright
causes the
T2200SX to use the maximum brightness level (gray scale level 15) to display charac-
ters. A setting of
Semi-Bright
uses a slightly lower brightness level (gray scale
level 11).
Summary of Contents for T-Series T2200sx
Page 1: ...1 1 Chapter 1 Hardware Overview ...
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Page 17: ...2 1 Chapter 2 Operational Overview ...
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Page 43: ...3 1 Chapter 3 Troubleshooting Procedures ...
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Page 83: ...4 1 Chapter 4 Tests and Diagnostics ...
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Page 141: ...5 1 Chapter 5 Disassembly Procedures ...
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Page 169: ...6 1 Chapter 6 Reassembly Procedures ...
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Page 191: ...App 1 Appendices ...
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Page 196: ...App 6 Figure A 2 System board FSTFGx ICs back G G G G E F J H I K ...
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Page 200: ...App 10 Figure A 4 System board FSTFGx connectors back E A P Q ...
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Page 203: ...App 13 A 3 System Board FSTFGx OSCs Figure A 5 System board FSTFGx OSCs front F G H E ...
Page 204: ...App 14 Figure A 6 System board FSTFGx OSCs back A B C D ...
Page 215: ...App 25 Appendix C ASCII Character Codes Table C 1 ASCII character codes ...