Ricoh D127 Service Manual page 172

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