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Tests and Diagnostics
PORTEGE M780 Maintenance Manual (960-809) [CONFIDENTIAL] 3-141
3.34.7.8 VIDEO Test
1) Test content
This test displays red, green, blue, white and black colors, circles, line gradation, ASCII
characters and H pattern full screen.
■ Simple Mode
This test mode displays red, green, blue, white and black colors, circles, line gradation,
ASCII characters and H pattern full screen.
■Detail Mode
This test mode performs display of test items in the Simple mode as well as random drawing
of circles, squares and lines.
2) Test screen
Example of a test screen
3) Result judgment
The operator judges PASS or FAILE by visual check. However, unless program error occurs,
OK is displayed in the Result field on the WinPE T&D screen.
■ In the case of PASS
The PASS Count display on the test screen is zoomed in and (OK) is displayed in the Result
field on the WinPE T&D screen.
■ In the case of FAIL
This test only performs gradation display by visual check and does not execute error
judgment.