Service manual

AL-1661CS ELECTRICAL SECTION 12 - 1
[12] ELECTRICAL SECTION
1. Block diagram
A. Overall block diagram
Carriage Unit AR Model Only (Optional)
CCD PWB
12V 12V
Reg
A5V
3.3V
R G
8bits (MSB/LSB)
AR Model Only (Optional)
B
SPF Motor
5V
Speaker
(Power Supply unit)
FAX only MPFS,RRS,CPFS1
MCU-PWB
(SPF UNI
T
SGS SRRC SPUS SPPS
AL Model Only 4Mb
AR-MODEL Only or 8Mb (Counter) MCNT
256Mbx1 or 16Mb
3.3V
D[7..0] RD
IEEE 1284 I/F CS
INT
(Electorical detector/SW/Sensor)
UART
INTERRUPT
Printer CLK(16.1511MHz) SPPD
3.3V
I/O
Scanner CLK(48MHz)
16.1511MH
Interlock SW Cassette detector X 2 Drum Initial detector PPD1 POD
A[19 1]
OPE PWB
MFD
Motor PPD2
D[15 0]
SDOD
1Mbit SPOD
PSL LED
Shifter Motor
Note: Energy-saving 1W correspondence)
8Mbit 8bit
FAX Model Only
I2C Bus 8bit 2Kbyte FAX OPE PWB
Buzzer
Fan Motor (1speed)
2nd Cassette
MainMotor Toner Motor Mirror Motor
AR Model Only (Optional)
Mechanical load
CPFS2
Sensor/SW
PAPD,PPD3, PD2,CED2
AC Code
C D S
A G C
M P X
AD
16bits
CCD Driver
CCFL x 2
Lamp Invertor
HOME POSITION SENSOR
MHPS
PWM
0 - 24V
DC-DC