3.9 Display Test
3 Tests and Diagnostics
3.9 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.
PORTEGE R200 Maintenance Manual (960-519)
[CONFIDENTIAL]
3-19
Summary of Contents for Portege R200
Page 10: ...x CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 34: ...1 Hardware Overview 1 7 AC Adapter 1 20 CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 ...
Page 35: ... CONFIDENTIAL Chapter 2 Troubleshooting ...
Page 36: ...2 Troubleshooting 2 ii CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 2 ...
Page 40: ...2 Troubleshooting 2 vi CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 ...
Page 103: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 104: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 3 ...
Page 211: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 212: ...4 Replacement Procedures 4 ii CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 4 ...
Page 216: ...4 Replacement Procedures 4 vi CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 ...
Page 281: ... CONFIDENTIAL Appendices ...
Page 282: ...Appendices App ii CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 ...
Page 288: ...Appendices App viii CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 ...
Page 302: ...Appendices Appendix B Board Layout B 8 CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 ...
Page 338: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 ...
Page 346: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL PORTEGE R200 Maintenance Manual 960 519 ...