Forth-Based Prom Diagnostics - Sun Microsystems SPARCstation 5 Service Manual

FORTH-Based PROM Diagnostics

For information about how to run the FORTH Diagnostics, see Appendix D." Table
2–4Table 2–4 lists specific on-board diagnostic tests for SPARCstation 5 systems.
TABLE 2–4
Type of Test
test
screen
test
floppy
test scsi
test
net-aui
test
net-tpe
test net
SPARCstation 5 Service Manual ♦ Revision A, August 1994
14
Selected FORTH Diagnostic Tests
Description
Tests the system video
graphics hardware and
monitor.
Tests the floppy drive
response to commands.
Tests the SCSI interface logic
on the system board.
Performs an internal and an
external loopback test on the
AUI (Thick) Ethernet
interface.
Performs an internal and an
external loopback test on the
twisted-pair Ethernet (TPE)
interface.
Performs an internal and an
external loopback test on the
auto-selected system
Ethernet interface.
Preparation
The diag-switch?
NVRAM parameter must be
set to true.
Insert a formatted diskette
into the drive.
The diag-switch?
NVRAM parameter must be
set to true.
A cable must be connected
to the system AUI Ethernet
port and to an Ethernet tap
or the test will fail the
external loopback phase.
A cable must be connected to
the system TPE port and to a
TPE hub or the test will fail
the external loopback phase.
If the tpe-link-test?
parameter is false
(disabled), the external
loopback test will appear to
pass even if a cable is not
connected.
A cable must be attached to
the system and to an
Ethernet tap or hub or the
external loopback test will
fail.
When to Use
See
description.
See
description.
See
description.
See
description.
See
description.
See
description.