5.2.4 Video Test
This menu allows you to test the display and the control logic on the
system board.
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¦ DISPLAY TEST ¦
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¦ 0 - DISPLAY SELF TEST ¦
¦ 1 - DISPLAY ATTRIBUTES ¦
¦ 2 - CHARACTER SET ¦
¦ 3 - 80X25 DISPLAY ¦
¦ 4 - 40X25 DISPLAY ¦
¦ 5 - 320X200 GRAPHICS ¦
¦ 6 - 640X200 AND 640X480 GRAPHICS ¦
¦ 8 - SCREEN PAGING ¦
¦ 9 - EXIT TO MAIN MENU ¦
¦ 10 - RUN ALL ABOVE TESTS ¦
¦ 11 - VIDEO TEST ¦
¦ 12 - SYNC TEST ¦
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0 - DISPLAY SELF TEST: Tests the video memory, video registers, scan
frequency, and monitor interface.
1 - DISPLAY ATTRIBUTES: Tests the display attribute logic for intensity,
reverse video, blinking, non-display, and underline modes.
2 - CHARACTER SET: Tests character ROM by displaying all of the available
characters.
3 - 80X25 DISPLAY: Fills the screen with a pattern of characters, in the
80-by-25 display mode.
4 - 40X25 DISPLAY: Fills the screen with a pattern of characters and an
intensified white border in the 40-by-25 display mode.
5 - 320X200 GRAPHICS: Tests the 320-by-200 graphics mode and displays
graphics tests 1, 2, and 3.
6 - 640X200 AND 640X480 GRAPHICS: Tests the 640-by-200 and 640-by-480
graphics modes.
8 - SCREEN PAGING: Tests the video addressing circuitry.
9 - EXIT TO MAIN MENU: Returns to the System Checkout menu.
10 - RUN ALL ABOVE TESTS: Performs tests 0 through 8.
11 - VIDEO TEST: Provides a test signal to allow voltage measurements at
the video and intensity outputs.
12 - SYNC TEST: Provides a test signal to allow voltage measurements at
the horizontal and vertical synchronization outputs.
HMR Diagnostics for Non Micro Channel
Video Test
¦ Copyright IBM Corp. 1990
5.2.4 - 1