Sharp AL-1215

AL-1551CS ELECTRICAL SECTION 12 - 1
[12] ELECTRICAL SECTION
1. Block diagram
A. Overall block diagram
Carriage Unit
CCD PWB
12V
R G
8bits MSB/LSB)
B
VCL
5VEN
PSW
SELin
ADCCLK
Kin
BSAMP, VSAMP
SDI, SCLK, LOAD
1, 2, TG, TG2, TG3 RB, CLB, 1L
3.3V
Clock,Data,
LATCH
CCD ( uPD8861)
AFE(AD9826)
C D S
A G C
M P X
AD
16bits
CCD Driver
Operation PWB
SDRAM
(8MB/16MB)
CCFL
Lamp Inverter
I/F PWB (Optional)
ASIC Reset
IEEE 1284 I/F
3.3V
A[9
1]
USB I/F
D[15
0]
MMD
LSU UNIT
VFM
Main Motor
PMD
TM+, TM–
DMT0/1/2/3
ASIC
CPU H8S/2320
I E E E 1 2 8 4
Laser
I/F PWB (Optional)
Polygon Motor
OSC (24MHz) OSC (13.9867MHz)
Other Loads
<ASIC I/O> MPFS,RRS,HL,PR FAN Motor SGS
SRRC SPUS SPPS
TC GRIDL MC BIAS
MPFS
CPFS2 Toner Motor Scanner Motor
CPFS1
Duplex Motor
Other Inputs CPU INTERRUPT
PMCLK
MHPS
SPPD
CPU I/O
RTH PPD1, POD, MFD, CED1, TCS, DVS1, PPD2, PPD3, CED2, DSWS SDSW, SPID, SDOD, DRST
MultiPlexed
MCU PWB UNIT
I2C Bus
A[16..0]
D[15 8]
A[19..0] D[15..0]
A[19
0]
D[15
0]
Power Reset
3.3V 3.3V/5V/ 5VEN/12V 24V
CPU H8S/2320
(19.6608MHz)
EEPROM
(2Kb)
Reset IC
SRAM (1Mb x 1)
ROM (4Mb)
Power Supply Unit (Low Power/High Power)
SPMT0/1/2/3 SPF Motor
U S B 1 . 1