Ricoh D158 - Page 273

Service Call Conditions
D158/D159/D160/D161/D170 5-9 SM
Trouble-
shooting
No.
Definition
Symptom Possible Cause
144 B
Communication Error between BICU and SBU
The BICU board cannot
detect the SBU connect
signal.
 The flat cable between the BICU
board and the SBU has a poor
connection
 The flat cable between the BICU
board and the SBU is damaged
 BICU board
 SBU
161
-01
B
IPU (BICU) error (LSYNC error) (D158/D159)
Error was detected in the
result of the BICU self-check
at startup.
 Defective BICU
 Bad cable connection between the
SBU and the BICU.
161
-02
B
IPU (BICU) error (RI response error) (D158/D159)
Error was detected on access
to the RI.
 Defective BICU
165 B
Unauthorized copy protection Failed (D158/D159)
Detected the wrong type of
copy data protection unit, or
no unit was found when copy
protection was turned on, or a
problem was detected with
the unit at startup.
 Copy data protection unit not
attached firmly.
 Defective copy data protection unit
195 B
Serial number mismatch
Checking if the serial number
matches.
 Serial numbers (11 digits) do not
match.