HP 9020 CE Handbook page 48

9020 Diagnostics
5-13
BASIC Mainframe Functional Tests (Continue)
Test Name Pass/Fail Indicator
Description/Requirements
BGRAPHICS Hardware: 9020B
Compare displays with outputs that Tests graphics hardware such as: cursor types,
follow. Graphics memory test pro- vector generation, arc generation, area fill capa-
vides pass/fail message. bility. video mixer. LP bit (light pen bit). and
graphics memory.
CGRAPHICS Hardware: 9020C
Compare displays with output that STANDARD - degausses the color display, tests
follows. Graphics memory test pro- vector generation (compare display to Graphics
vides passlfail message. output that follows), and tests graphics memory.
Visually inspect for compliance with INTERACTIVE - The linearity test consists of a
description. series of lines of identical characters. Check that
the lines are equally spaced vertically on the dis-
play. and that the characters in each line are
equally spaced from left to right edges of the
display area. DUring the cursor test, eight hori-
zontal bands are displayed. The colors from top
to bottom are: blue, white, yellow, magenta
(purple), red, green, cyan (light blue), and black
(not visible).
If characters appear sharp and white, CONVERGE - used to converge the three color
no convergence is needed. guns of the display. Use when characters on the
display appear to have colored (red, green, yel-
low, etc) "shadows". Follow procedure detailed
later in this chapter.
LTPEN Hardware: 9020B or 9020C with Light Pen op-
tion
Error indicator described in test in- Verifies operation of the light pen and associated
structions. graphics hardware.
FLOPPY
Hardware: 9020A, 9020B, or 9020C with built-
in flexible disc drive
Test System Error number provided. STANDARD - tests ability of drive to create a file,
Refer to Chapter 10. write to a file, read from a file, and purge a file.
Test System Error number provided. EXTENDED - tests ability of drive to write to and
Refer to Chapter 10. read from many locations on the disc. This test
requires use of a blank, initialized flexible disc.
Test System Error number provided. CLEANING - when used in conjunction with the
Refer to Chapter 10. HP 92193A Disc Cleaning Kit, cleans the read/
write head of the computer's built-in flexible disc
drive.
09020-90035.
rev:
1185