Service manual

AR-203E/5420/M200/M201 ELECTRICAL SECTION 13 - 1
[13] ELECTRICAL SECTION
1. Block diagram
A. Overall block diagram (AR-203E/5420)
Carriage Unit
CCD PWB
12V
5V
NF
A5V 3.3V
Reg
5V
SPF Motor (AR-203E optional only)
Mechanical Load
R
MPFS,RRS,CPFS1
G 8bits(MSB/LSB) B
5V
MCU-PWB
Sensor/SW
(Electorical detector/SW/Sensor)
CPU
INTERRUPT
SPPD
3.3V
CPU I/O
Interlock SW Cassette detector X 2 Drum Initial detector PPD1 POD
Printer CLK
MFD
(18.3856MHz)
PPD2 SPOD PD1
3.3V
Scanner CLK(48MHz)
A[19…1]
OPE PWB
D[15…0]
USB I/F
1Mbit
16Mbit
16bit
I2C Bus
Fan Motor
I2C Bus
(2speed with Lock detect)
8Kbyte
24V 12V
2nd Cassette
MainMotor Toner Motor Mirror Motor
(AR-203E Optional only)
Polygon
Mechanical load
Motor
CPFS2
Sensor/SW
PAPD,PPD3, PD2,CED2
AC Code
LSU
KRONOS ASIC
(296pin)
CPU
H8S/2321
(19.6608MHz)
EEPROM
SDRAM
16Mbyte
or 8Mbyte
Reset IC
SRAM
Driver
Flash ROM
AFE(HT82V24)
C D
S
A
G
C
M
P X
AD
16bits
CCD Driver
CCFL x 2
Lamp Inverter for CCFL
HOME POSITION SENSOR
CCD
(ILX558X)
CPU CLK(19.6608MHz)
System Reset
SSCG
PMD
Driver
LED Driver
LED
HC151 x 2
KEY Matrix
START KEY
POWER SUPPLY
/POFF,HL,PR FW 3.3V,5VEN,5V,12V,24V
HVU
TC, GRID, MC, BIAS
PMCLK
PSW
KEYIN1,2
SELIN1,2,3
OP-CLK OP-LATCH OP-DATA
PSL
MHPS
Driver
/MMD
PWM
0 - 24V
HC151
DC-DC
/MMRDY
EEPROM (CRUM)
LASER
MMCLK
USB1T20
PSL LED
ONL LED
ONL
Driver
USB2.0
FullSpeed
(expect for
AR-5420)