26 July 2002 SERVICE CALL
4-15
Trouble-
shooting
No.
Definition
Symptom Possible Cause
Self-Diagnostic Error: Parallel Interface 835 B
A loopback test error occurred.
• Loopback connector not detected
• IEEE1284 connector defective
• Defective controller board
Self-diagnostic Error: Resident Font ROM 836 B
The resident font ROM returned an
error during the self-diagnostic test.
• Font ROM defective
Self-diagnostic Error: Optional Font ROM 837 B
The optional font ROM returned an
error during the self-diagnostic test.
• Font ROM defective
Verification error 838 D
The verification data of the clock
generator is read via the
communication bus. → The data
contradicts the normal value.
• Defective controller board
Network I/F abnormal 850 B
The IP address is incorrect, or the
controller cannot accesses the
network due to a driver error.
• Incorrect network setting
• Defective controller board
IEEE1394 I/F abnormal 851 B
The IEEE1394 interface cannot be
used, due to a driver error.
• IEEE1394 interface board defective
• Defective controller board
IEEE802 11b card startup error 853 D
The machine starts up. → The
IEEE802 11b card connection board
is recognized. → The IEEE802 11b
card is not recognized.
• Loose connection between the card and
the connection board
IEEE802 11b card access error 854 D
The machine has been reading the
data from the card. → The machine
loses access to the card; the
IEEE802 11b card connection board
is still recognized.
• Loose connection between the card and
the connection board
IEEE802 11b card error 855 D
Some illegal data is found in the card.
• Defective card
IEEE802 11b card connection board error 856 D
An error is detected in the IEEE802
11b card connection board.
• Defective card connection board
Startup without HD connection at main power on 860 C
The hard disk is not detected. (The
hard disk is not formatted.)
• Cable between controller and HD loose
or defective
• HD power connector loose or defective
• HD defective
• Controller defective
Startup without HD detection when the power key was pressed 861 C
The hard disk is not detected.
• Cable between controller and HD loose
or defective
• HD power connector loose or defective
• HD defective
• Controller defective
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