Read Sharp MX-2300N / MX-2700N / MX-2300G / MX-2700G / MX-2300FG / MX-2700FG (serv.man10) Service Manual online
MX-2300/2700 N/G/FG BLOCK DIAGRAM / ブロック図 1 – 3
3. PCU PWB
IC1
CPU
H8S/2373
IC5
SRAM
(1Mbit)
FLASH
ROM
(16Mbit)
IC6
EEPROM
(64kbit)
IC9
PMC
ASIC
IC8
I/O
ASIC
IC7
DFF
LCX574
I2C
Bus
IC27/IC30/IC31/IC37
MUX
HC151x5
CLOCK
LCC
FINISHER
DESK
IC4
RESETIC
AnalogInput
Fuser
Thermistor
(TH_UM/LM/US)
Toner
Detector
(TCS_K/C/M/Y)
Process
Cont.
sensor
(PCS_K/CL)
Resist
sensor
(REGS_F/R)
To
LSU
Via
Mother
Optional
To
MFPC
Via
Mother
UART
UART
UART
UART
UART
DC
Power
Supply
X1
Xtal
19.6608MHz
IC2
Spread
Spectrum
Sensor
Input
PPD2
Sensor
Input
CPFD1
/
C
PFD2/
HPOS
/
P
PD1
/
DHPD_CL/DHPD_K
/
POD3
/
P
OD2
DSW_F
/DSW_R
/DSW_C/
CLUD1
/CLUD2
/
CSPD1
/
C
SPD2/
1TUD_K
/1TUD_CL
MUX
HC151
CRUM
CRUM_K/C/M/Y
IC71
D/A
C
onv
(TCS/REGS
cont)
Load
Control
O
utput
Coin
vendor
(Optional)
Stepping
M
otor
Control
Pout
Motor
(POM)
/
ADU
Motor
(ADML)
/
Shifter
Motor
(OSM)/
Resist
Motor
(RRM)
/
P
SF
Motor
(PFM)
Drum
Motor
BK(DM_K)/
Drum
Motor
CL(DM_CL)
Fuser
M
otor(FUM)
Fuser
unit
HL
control
HL_UM/LM/US
Sensor
Input
CSS11-14
/
C
SS21-24
POD1
APPD1
/
APPD2
Load
control
Output
MPGS
/CPUC1
/
CPUC2
/
PCSS
/
C
PFC
/
LSUSS1
/LSUSS2
(Optional)
/
MPUC
/
M
PFS
/
1TURC
FAN
Motor
Control
PS
FAN
(PSFM)
/
Ozone
F
AN
(OZFM)
/
Pout
FAN
(POFM_F/POFM_R)
Flash
Write
Protect
HV
MC
/
T
C
u
n
3-wireds
erial
Drum
L
amp
(DL_K/C/M/Y)
PWM
DC
Motor
C
ontrol
DV
Motor
B
K
(DVM_K)/
DV
Motor
CL
(DVM_CL)
Paper
Feed
Motor
(CPFM)
Sensor
Input
CSS1
/
C
PED2
/
C
SS2
/
CPED1
MPFD
/MPED
/CPWD11-12
TFD2/
1TNFD
/
WENDD
/
W
INID
Motor
L
ock
Detect
FAN_LD1-2
/
D
VMC_LD
/
D
VMB_LD
/
PFM_LD
/
F
UM_LD
Fuser
Thermistor
open
detect
THOPEN_UM/LM/US
Sensor
Input
DVSET
(K/C/M/Y)
DRDET
(K/C/M/Y)
IC73
Analog
MUX
Analog
Input
Temp/Hum
sensor
(TH_M/HUD_M)
LSU
T
hermistor
(TH1_LSU)
DV
detector
(DVTYP_C/M/Y/K)
Multi-bypass
tray
width
sensor
(MPWD)
FW
Sensor
Input
COIN
VENDOR
(Optional)
CV_CLCOPY
/
CV_COPY
Load
output
Mechanical
Counter
(Optional)
PNC_K
/
PNC_CL
Syncronous
Motor
Toner
Motor
(TNM_K/C/M/Y)
Waste
T
oner
M
otor(WTNM)
DC
Motor
Lift
Up
Motor
(CLUM1/CLUM2)
Sensor
Input
DSW_ADU/
TFD3
/
MPLD/
MTOP1/MTOP2/
MPED
MUX
HC151
RD
I/F
PWB
AddressBus[20:0]
DATABus[15:0]
I2C
B
us
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