
3.8 Video
3 Diagnostic Programs
3.8 Video
This test item tests the video by:
1.
displaying the figures in different graphic modes.
2.
displaying the property and color of the characters in different text modes.
User will confirm whether each video mode works normally by judging whether the display
is correct. It checks whether the video memory works normally by writing data into the video
memory, then reading it out and comparing the two value.
Subtest 01
Text Mode
1.
Character Test
Tests two types of font patterns.
Font 9*14
Font 9*16
It requires the user to check whether all characters of each font type displayed
correctly by answering the questions prompted on screen. It will be displayed as
follows:.
2.
Text Attribute
This test item is to check whether the text attribute of normal, hi-intensity,
inverse, and blinking in VGA text mode could be correctly displayed on the
screen.
Satellite A500 Maintenance Manual
51
Summary of Contents for Satellite Pro A500 series
Page 14: ...Chapter 1 Hardware Overview ...
Page 15: ...1 Hardware Overview ii Satellite Satellite Pro A500 A505 A507 dynabook Maintenance Manual ...
Page 70: ...Chapter 3 Diagnostic Programs ...
Page 73: ......
Page 113: ...3 Diagnostic Programs 3 5 System Test 40 Satellite A500 Maintenance Manual ...
Page 141: ......
Page 143: ...Chapter 4 Replacement Procedures 4 1 ...
Page 227: ...6000 1 次 Appendices ...