Service manual

AL-2030/2040CS/2050CS ELECTRICAL SECTION 12 - 1
[12] ELECTRICAL SECTION
1. Block diagram
A. Overall block diagram
(1) AL-2030/2040CS
Carriage Unit
CCD PWB
12V
5V
NF
A5V 3.3V
Reg
5V
SPF Motor
MechanicalLoad
R
MPFS,RRS,CPFS1
G8bits (MSB/LSB)
B
(Counter) MCNT
5V
Sensor/SW
(Electorical detector/SW/Sensor)
CPU INTERRUPT
SPPD
PSW
MCU-PWB
FW MHPS
CPU I/O
Interlock SW Cassette detector X2 Drum Initial detector
3.3V PPD1
POD MFD PPD2 SPOD
Printer CLK
(18.3856MHz)
3.3V
Scanner CLK(48MHz)
A[19…1]
OPE PWB
D[15…0]
USBI/F
1Mbit
16Mbit
Duplex Motor
16bit
Fan Motor
I2C Bus
(2speed,Lock sensor)
8Kbyte
24V 12V
2nd Cassette
Main Motor Toner Motor Mirror Motor
(AL2040 only)
Polygon
Mechanicalload
Motor
CPFS2
Sensor/SW
PAPD,PPD3, PD2,CED2
AC Code
LSU
KRONOS ASIC
(296pin)
CPU
H8S/2321
(19.6608MHz)
EEPROM
SDRAM
16Mbyte (AL2040)
or 8Mbyte (AL2030)
Reset IC
SRAM
Driver
Flash ROM
AFE (HT82V24)
CDS
AGC
MPX
AD
16bits
CCD Driver
CCFL x 2
Lamp Inverter
for CCFL
HOME POSITION SENSOR
CCD
(ILX558X)
CPU CLK(19.6608MHz)
SystemReset
SSCG
PMD
Driver
LED Driver
LED
AL2030 44 pcs AL2040 48 pcs
HC151 x 2
KEY Matrix
AL2030 13 pcs AL2040 15 pcs
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
LASER
MMCLK
USB1T20
PSL LED
Driver
ONL LED
ONL
Driver
NIC PCBA (AL2040 only)
RJ45 (N/W connector)
Ether Chip RTL8019AS
FPGA
CPU uPD703100
FlashROM 1Mbit
SRAM 256kbit
1284 I/F
AL2040 only
USB2.0
Full Speed