Sun Microsystems SPARCstation 5 Service Manual page 29

Selected FORTH Diagnostic Tests
TABLE 2–4
Type of Test Description
Tests internal or external
test disk
SCSI disks that have a
test disk0
self-diagnostic program
test disk1
test disk2
contained in the drive
test disk3
controller (disk0 = SCSI
address 0, disk1 = SCSI
address 1, disk2 = SCSI
address 2, disk and disk3
= SCSI address 3).
Performs a self-test
test cdrom
diagnostic on the CD-ROM
drive.
Tests the SCSI tape drive by
test tape
executing the drive self-test
test tape0
program. tape and tape 0
test tape1
are the first tape drive. tape
1 is the second tape drive.
Outputs an alphanumeric
test ttya
test pattern on the system
test ttyb
serial ports (ttya = serial
port A, ttyb = serial port B).
This test executes the
test
keyboard self- test. The four
keyboard
LEDs on the keyboard
should flash on once, and
the message Keyboard
Present is displayed.
Tests all of the system main
test-
memory if the
memory
diag-switch is true. If
diag-switch is set to
false, it tests the memory
according to the number
specified in
selftest-#megs.
(continued)
Preparation
The drive must be spinning
before this test is executed or
the test will fail. Enter a
boot <disk alias> command
to cause the drive to spin up.
The CD-ROM must be set to
SCSI target 6 and have a CD
inserted in the drive or the
test will fail.
Connect the tape drive to the
system and then turn on the
power.
Attach a terminal to the
serial port to observe the
output.
Keyboard must be
connected.
None.
Troubleshooting Overview
When to Use
Disk drive
does not
function
properly.
See
description.
See
description.
Tests serial
ports.
See
description.
See
description.
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