1.8.8
Pointing Device Subsystem
The pointing device subsystem (Figure 1-17) consists of the built-in "Point"
device on the keyboard and a pre-programmed 82c752 micro-controller that
interfaces the mouse device to the main board. An external PS/2 port also
supports the use of an external PS/2 compatible mouse.
1.8.9
Keyboard Subsystem
The keyboard subsystem is implemented on the keyboard assembly,
Keyscan Board, and part of the System Board.
The TravelMate 5000 Series Keyboard, shown in Figure 1-18, is an
83/84-key, IBM enhanced-type keyboard with the standard character and
function keys plus 12 programmable function keys (F1 through F12).
Using the Special Function (
Fn
) key which assigns multiple functions to
keys, the keyboard can emulate the IBM 101/102 keyboards using 83 keys
(84 on international models).
The keyboard has a 4mm stroke and features a special keyboard interface
chip that can detect multiple levels of key input (good simulation of N-key
rollover for up to 10 keys).
Some of the major features of the keyboard include:
•
4-mm Key movement
Embedded Point Device
Select Switches
83/84 Key , 4mm Keyboard
Figure 1-17 Notebook Pointing Device
1-34
General Description
Summary of Contents for TravelMate 5000 Series
Page 1: ...Maintenance Manual TravelMate 5000 Series Notebook Computers 9786166 0001 March 1995 ...
Page 47: ...Figure 1 16 TM5000 Series Functional Block Diagram 1 30 General Description ...
Page 95: ...Figure 4 2 Notebook Detailed Block Diagram Troubleshooting Procedures 4 3 ...
Page 149: ...Figure 6 4 Main Board P54 75MHz P N 9798803 0001 Sheet 2 of 2 6 14 Illustrated Parts Listing ...
Page 172: ...Figure 6 7 Keyscan Board P N 9786209 0001 Illustrated Parts Listing 6 37 ...
Page 180: ...Figure 6 11 Inverter Board P N 9786134 0001 Illustrated Parts Listing 6 45 ...
Page 185: ...Figure 6 12 DAB Board P N 9786273 0001 6 50 Illustrated Parts Listing ...
Page 228: ...Figure 7 5 Figure 7 5 IR Board P N 9798813 Logic Diagram Sheet 1 of 2 7 42 Schematic Diagrams ...
Page 229: ...Figure 7 5 Figure 7 5 IR Board P N 9798813 Logic Diagram Sheet 2 of 2 Schematic Diagrams 7 43 ...
Page 239: ...Figure A 1 Code Page 437 United States A 2 Character Sets ...
Page 240: ...Figure A 2 Code Page 850 Multilingual Character Sets A 3 ...
Page 241: ...Figure A 3 Code Page 863 Canadian French A 4 Character Sets ...
Page 242: ...Figure A 4 Code Page 865 Nordic Character Sets A 5 ...
Page 286: ...Printed in U S A ...
