Read Sharp AR-203 (serv.man5) Service Manual online
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
M
otor
(AR-203E
optional
only)
Mechanical
Load
R
MPFS,RRS,CPFS1
G
8
bits(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
R
OM
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,
G
RID,
MC,
B
IAS
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
(expectf
or
AR-5420)
Click on the first or last page to see other AR-203 (serv.man5) service manuals if exist.