3.7 Display Test
3 Tests and Diagnostics
Satellite A40 Maintenance Manual (960-458)
3-19
3.7 Display Test
To execute the Display Test, select
4
from the DIAGNOSTIC TEST MENU, press
Enter
and
follow the directions on the screen. Move the highlight bar to the subtest you want to execute and
press
Enter
.
Subtest 01
VRAM read/write for VGA
This subtest writes the constant data (AAh and 55h) to the video RAM. The data is
read and compared to the original data.
Subtest 02
Gradation for VGA
This subtest displays four colors: red, green, blue and white from left to right across
the screen from black to maximum brightness. The display below appears on the
screen, when this subtest is executed.
To exit this subtest and return to the DISPLAY TEST menu, press
Enter
.
Subtest 03
Gradation for LCD
This subtest displays bands of gradations for mixed colors, then for red, green, and
blue. Next, it displays eight solid colors full screen: red, semi-red, green, semi-
green, blue, semi-blue, white, and semi-white. Each color displays for three
seconds.
Summary of Contents for Satellite A40
Page 11: ...Satellite A40 Maintenance Manual 960 458 xi ...
Page 12: ...Chapter 1 Hardware Overview ...
Page 13: ...1 Hardware Overview 1 ii Satellite A40 Maintenance Manual 960 458 ...
Page 16: ...1 Hardware Overview Satellite A40 Maintenance Manual 960 458 1 v ...
Page 54: ...Chapter 2 Troubleshooting Procedures ...
Page 55: ...2 Troubleshooting Procedures 2 ii Satellite A40 Maintenance Manual 960 458 ...
Page 59: ...2 Troubleshooting Procedures 2 vi Satellite A40 Maintenance Manual 960 458 ...
Page 121: ...Chapter 3 Tests and Diagnostics ...
Page 122: ...3 Tests and Diagnostics 3 ii Satellite A40 Maintenance Manual 960 458 ...
Page 213: ...Chapter 4 Replacement Procedures ...
Page 214: ...4 Replacement Procedures 4 ii Satellite A40 Maintenance Manual 960 458 ...
Page 384: ...Appendices ...
Page 385: ...Appendices App ii Satellite A40 Maintenance Manual 960 458 ...
Page 388: ...Appendices Satellite A40 Maintenance Manual 960 458 App v Appendix I Reliability I 1 ...
Page 392: ...Appendices Satellite A40 Maintenance Manual 960 458 App ix ...
Page 398: ...Appendices Appendix A Handling the LCD Module A 6 Satellite A40 Maintenance Manual 960 458 ...
Page 438: ...Appendices Appendix E Key Layout E 4 Satellite A40 Maintenance Manual 960 458 ...
Page 440: ...Appendices Appendix F Wiring Diagrams F 2 Satellite A40 Maintenance Manual 960 458 ...
Page 442: ...Appendices Appendix G BIOS Rewrite Procedures G 2 Satellite A40 Maintenance Manual 960 458 ...
Page 444: ...Appendices Appendix H EC KBC Rewrite Procedures H 2 Satellite A40 Maintenance Manual 960 458 ...
Page 446: ...Appendices Appendix I Reliability I 2 Satellite A40 Maintenance Manual 960 458 ...