Specifications

v
Figures and Tables
Chapter 1
Introduction to the PowerBook Duo 270c Computer
1
Figure 1-1 Simplified block diagram of the PowerBook Duo 270c computer
system 4
Chapter 2
Hardware Modifications
5
Figure 2-1 PowerBook Duo 270c main logic board 8
Figure 2-2 Hard disk drive housing 11
Figure 2-3 Bracket for the hard disk drive 12
Figure 2-4 Hard disk drive SCSI connector 13
Figure 2-5 The PowerBook Duo 270c computer housing in open
position 18
Table 2-1 Features of the active-matrix TFT color display 6
Table 2-2 Environmental specifications for 240 MB hard disk drive 9
Table 2-3 Hard disk drive SCSI connector signal assignments – SCSI and
power 13
Table 2-4 Hard disk drive SCSI connector signal assignments – SCSI
ID 15
Table 2-5 SCSI ID encoding 15
Table 2-6 Power requirements for the 240 MB hard disk drive 16
Chapter 3
Software Modifications
19
Figure 3-1 PowerBook Duo 270c color lookup table 21
Figure 3-2 Power adapter warning 23
Figure 3-3 Initial information dialog box 24
Figure 3-4 Main informational dialog box 25
Figure 3-5 Less-than-30-days message 25
Figure 3-6 Final confirmation: less than 30 days 26
Figure 3-7 Waiting image 26
Figure 3-8 Completion dialog box 26
Figure 3-9 PowerBook Setup panel 28
Figure 3-10 PowerBook control panel 29
Appendix A Color Lookup Table (CLUT)
31
Table A-1 Color look up table 31