Test Descriptions; Test; Display Fault Log - Seagate ST8741J Maintenance Manual

Test Descriptions
TEST DESCRIPTIONS
The individual offline diagnostic tests are listed in table 2-4
and are described in the following topics.
Do not attempt to enter any test numbers that are not listed in
table 2-4. Doing so will result in invalid test information.
The drive will not run tests that produce seeks (OS.
08. 09.
or
OE) unless the spindle motor is up to speed and the heads are
loaded. The following LCD displays indicate why seek tests
will not run:
• SPEED NOT OK -- the spindle was not up to speed when the
test was executed.
•
ACT PARKED -- the carriage was parked and locked when the
test was executed.
If you connected a status/control panel to the drive
temporarily to do troubleshooting. run Tests
06
and
07
before
you continue with other tests. When powered off. the panel
stores its status log and fault log in a nonvolatile RAM. When
the panel is powered on initially. these logs may reflect
operation of the panel with a different drive.
TABLE 2-4. SUMMARY OF DIAGNOSTIC TESTS
Test Number Title
00
01
04
05
06
07
08
09
QC
OE
2F
83325720 B
Display Drive Operating Status Log
Display Fault Log
Calculate Three Most Likely Field
Replaceable Units
Servo Test
Clear Drive Operating Status Log
Clear Fault Log
Direct Or Continuous Seeks
Random Seek
Display EPROM Part Number
Return To Zero
I/O Test (SCSI Interface Drives Only)
TROUBLE ANALYSIS
2-23