Ricoh LANIER MP 301SP, Service Manual

Page: 172 / 553

SC Tables
D127/D128 6-6 SM
No.
Definition
Symptom Possible Cause
230 B
FGATE: Fail to switch "ON"
NOT switching FGATE signal on
within one second after writing
start-timing.

Defective the GAVD, PCI bridge
ASIC

BICU, the Controller board
wrong or bad connection

Defective the harness between
the BICU to the LDB
231 B
FGATE: Fail to switch "OFF"
NOT switching FGATE signal off
within nine seconds after writing
end-timing.

BICU, the Controller board
wrong or bad connection

Defective the harness between
the BICU to the LDB

Defective the GAVD, PCI bridge
ASIC
240 D
LD error
Detecting two LD error flags in
series when LD lighting after the LD
initializing

Characteristic degradation of
the LD (LD broken, electric
current versus light output
characteristic shift, etc)

Bad connection or
disconnection of the harness to
the LD

Defective the LD driver parts
270 B
GAVE communication error
Doesn't the value you set in a
certain resister accord with the
value of the same resister on
reading.

Defective the BICU

Defective the GAVD, the CPU