Engine Pwb - Olivetti d-Copia 600 Service Manual

2-3-4

Engine PWB

Optional
document
finisher/side
feeder
Switches
Sensor
DKPWB
Motors
Solenoid
Switches
Sensor
CSPWB
Motors
Switches
DUPPWB
Motors
Solenoids
FH-M
Switches
FH-S
Sensors
FH-L
DC
AC
PSPWB
PSPWB
Motors
Solenoids
fan motors
Fan
FMDPWB
motors
Y104350-7
Serial
communication
REM
SIG
CPU
REM
(U101)
SIG
REM
SIG
SIG
REM
ZERO CROSS
5 V DC
24 V DC
REM
REM
REM
Figure 2-3-7 Engine PWB block diagram
EPWB
OUTPEN, PVSYNC
EG SCLK, EG SDO, EG SBSY, EG SDIR, EG IRN,
EG SDI
Address bus
Data/Address multiplex bus
Address
Address
bus
latch
(U303, U304)
CLK
EEPROM
DIO
(U308)
SEL
DATA, CLK, LOAD
Buffer
(U202)
XIO
DATA, CLK, LOAD
(U201)
Sevice Manual
CLK
DATA
Flash
ROM
(U305)
SRAM
(U306)
SRAM
(U307)
D/A
con-
verter
(U901)
SIG
REM
24V, PLGREM, PLGCLK
PLGRDY
DEVC
CLC
MPWB
APCPWB
HVPWB
THVPWB
Switches
Sensors
Motors
Solenoids
Fan motors
PM
2-3-17