Toshiba Satellite P500 Maintenance Manual page 132

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Maintenance manual (288 pages)

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Table of Contents

Test Program for Field.

Subtest 08

"H" Pattern Display

This subtest displays a full screen of "H" patterns.

HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

To exit this subtest and return to the Display Test menu:

Press Enter if NO was selected for Test Loop on the Test Parameter Menu.

Press Ctrl + break if YES was selected for Test Loop on the Test Parameter

Menu.

Subtest 9

Video DAC Register W/R/C

This subtest writes data patterns to the Video DAC register lookup table (PEL

Address register), then reads the new data, and compares the result to the

original data patterns. The original content of the Video DAC register is saved

in RAM and restored after the test is completed.

The test data patterns are 00H,15H, 2AH and 3FH.

NOTE: If NO is selected for Test Loop on the Test Parameter menu,

Screen will remain blank"

executing. When the test is complete the Display Test menu displays.

If YES is selected for Test Loop on the Test Parameter menu, "

will remain blank

to the fast screen refresh while the test is executing. Press Ctrl + break to

return to the Display Test menu.

Satellite P500 and Satellite Pro P500 Tests and Diagnostics Manual

displays on the screen while the test is

" displays on the screen and then the screen flickers due

The Screen

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