SERVICE CALL CONDITIONS
B135/B138 4-16 SM
Code No. Symptom Possible Cause
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
C Self-Diagnostic Error 1: EEPROM
Access Error
840
During input/output with the
EEPROM, one of the following errors
occurred:
• A read error occurred, then
continued after 3 retries.
• Write error occurred.
• EEPROM defective
• EEPROM worn out
Self-Diagnostic Error 2: EEPROM
Read/Write Data Error
841
C
The values of the data written and
“mirrored” in 3 errors are all detected
as not matching..
• The data is being written into the 3
designated errors differently
Network I/F Abnormal 850 B
NIB interface error.
• NIB defective
• Controller board defective
IEEE 1394 I/F Abnormal 851 B
IEEE1394 interface error.
• IEEE1384 interface board defective
• Controller board defective
853 Wireless LAN Error: Card Error 1
B
The wireless LAN board can be
accessed, but the wireless LAN card
(IEEE 802.11b or Bluetooth) cannot
access the board.
• Wireless LAN card not inserted into
the wireless LAN board
854 Wireless LAN Error Card Error 2
B
The board that holds the wireless
LAN card can be accessed, but the
wireless LAN card
(802.11b/Bluetooth) itself cannot be
accessed while the machine is
operating
• Wireless LAN card has been
removed
855 Wireless LAN Error 3: Card Error 3
B
An error is detected for the wireless
LAN card (802.11b or Bluetooth).
• Wireless LAN card defective
• Wireless card connection not tight
856 Wireless LAN Error 4: Board
An error is detected for the wireless
LAN card (802.11b or Bluetooth).
• Wireless LAN card board defective
• PCI connector loose
857 USB I/F Error
B
The USB driver is unstable and
generated an error. The USB I/F
cannot be used.
• The USB driver can generate three
types of errors: RX, CRC, and STALL
errors. Only the STALL error can
generate this SC code.
860 C Startup without HD connection at
main power on
The hard disk connection is not
detected.
• Cable between HDC and HD loose or
defective
• HD power connector loose or
defective
• HD defective
• HDC defective
Rev. 04/2004