Chapter 4
Troubleshooting Procedures
4-13
device path name.
CODE EXAMPLE 4-6
identifies the
test
output message.
TABLE 4-5
lists
test <alias name>
selections, a description of the selection, and
preparation.
Note –
The floppy drive is selected as the
test <alias name>
example.
4.6.5
FFB Card
The FFB card contains a built-in diagnostic test that is enabled through the OBP. The
FFB card built-in diagnostic test verifies basic graphics functionality without booting
the operating system software.
CODE EXAMPLE 4-6
test
Output Message
ok test floppy
Testing floppy disk system. A
formatted disk should be in the
drive.
Test succeeded.
TABLE 4-5
Selected OBP On-Board Diagnostic Tests
Type of Test
Description
Preparation
test
screen
Tests system video graphics hardware and
monitor
Diag-switch? NVRAM parameter must be
true for the test to execute.
test
floppy
Tests floppy drive response to commands
A formatted diskette must be inserted into
the drive.
test
net
Performs internal/external loopback test of
the system
auto-selected Ethernet interface
An Ethernet cable must be attached to the
system and to an Ethernet tap or hub or the
external loopback test fails.
test
ttya
test
ttyb
Outputs an alphanumeric test pattern on
the system serial ports:ttya, serial port A;
ttyb, serial port B
A terminal must be connected to the port
being tested to observe the output.
test
keyboard
Executes the keyboard selftest.
Four keyboard LEDs should flash once and
a message is displayed:
Keyboard
Present
.
test
-all
Sequentially test
system-configured devices containing
selftest.
Tests are sequentially executed in device-
tree order (viewed with the
show-devs
command).
Summary of Contents for Ultra 1 Series
Page 8: ...viii Ultra 1 Creator Series Service Manual August 1996...
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Page 212: ...Glossary 4 Ultra 1 Creator Series Service Manual August 1996...