Board Structure; Block Diagram - Ricoh A-C4 Service Manual

20 June 2005

6.2 BOARD STRUCTURE

6.2.1 BLOCK DIAGRAM

SDRAM F-ROM
8MB 2MB
Sync．SCI
VLCDC
OPU
CCD LVDS
LM98513
4.7μm Driver
DAC P/H
GASBUP
SBU
ADF
AKS
Exposure
Inverter
Lamp
MDB
Scan.
Driver
Motor
This machine uses the GW (Grand Workware) architecture, which allows the copier
to be expanded as an MFP by installing simple modular components (SD cards) on
the controller board. The BICU and FCU are connected to the controller via a PCI
bus.
Option×2
CPU
RM7035C
SD
CARD
ASIC
HDD ATA100
Trumpet
RAM-DIMM
SSTL2
RAM-DIMM
SM Bus
SEEP
RTC SSCG
ROM(1kbit)
MB
SIB
CDICA
I
LVDC
RI1001A
LVDS
Reciver
eSOC
I 2 C
(m66485)
H8/
3297
UART
UART
DC-DC
Conv.
eIO eIO
5V 12V
Sensor
P.P. 1bin
Acyuator
Tray
・IEEE1284 ・Wireless LAN
・MLB2 ・Bluetooth
RIO3
・IEEE1394
NVRAM
64 MB
LSD
SD
CARD
ASIC
PHY
PCI
Shaker
USB2.0
DIMM
Option
FACE3
SAF
BACK
UP
FCUI/F
Controller
UART
UART
ICIB
BICU
PMACA
GAVD
2
C
Type-R
PMACA
EEPROM
Polygon
motor
SRAM FROM
256kB 2MB
Dulex
Feed
Unit
Motor
LD Main
Fuser
Rotate
Motor Motor
Driver
IOB
UART
Sync.SCI
Finisher
B408 B545 B546
6-5
BOARD STRUCTURE
Circuit
TEL
GS
Relay
RGU
Primary Ext. Tel
Comm. Line
Circuit
DTMF
Rec,
SP
FAME
DRV
SiG4-ASD
CCUDRV
or
MBU
SG3-NEO
Primary
FROM CCUIF
Backup
SG3-NEO
Reset
SRAM
EXSRAM
(Expan.）
Option
GWFCU3
+5V
NRS
MK1I/F
+5VE
LDB
LD
LD
DC-DC
AC-DC
+5VE
1
+5V
+24V
DC-DC
+12V
2
-12V
Fuser AC
Unit Drive
PSU
Bypath
Tray
UART
LCT
UART
BANK
B195D920.WMF