Read Sharp MX-LC13 (serv.man22) Service Manual online
MX-LC13 ELECTRICAL SECTION 8 - 1
[8] ELECTRICAL SECTION
1. Block diagram
A. Overall
Paper rear edge sensor
1CS paper feed UN
2CS paper feed UN
1CS UN
Vertical transport UN
Horizontal transport sensor UN
24V
Manual paper feed UN
Manual paper feed UN
Manual feed paper entry sensor
Vertical transport sensor 3
Vertical transport sensor 2
Vertical transport sensor 1
1CS paper exit sensor
Vertical transport open/close
sensor
Vertical transport sensor 3
Vertical transport sensor 2
Vertical transport sensor 1
1CS paper exit sensor
Vertical transport open/close
sensor
Horizontal transport sensor 5
Vertical transport sensor 4
2CS paper exit sensor
LCT paper exit sensor
Transport open/close sensor 2
Transport open/close sensor 1
LCT machine connection detection
Vertical transport sensor 4
2CS paper exit sensor
LCT paper exit sensor
Transport open/close sensor 2
Transport open/close sensor 1
LCT machine connection detection
Lift motor
Assist fan
motor 1
motor 1
Assist fan
motor 2
motor 2
1CS suction
fan motor
fan motor
Tray SW PWB
SW
LED
LED
Tray lock/
lock release SOL
lock release SOL
Tray lock sensor
2CS UN
SW
LED
LED
Lower limit sensor
Upper limit sensor
Lift motor RE sensor
Width sensor 1
Width sensor 2
Width sensor 3
Paper top surface sensor
Length sensor
Upper limit sensor
Lift motor RE sensor
Width sensor 1
Width sensor 2
Width sensor 3
Paper top surface sensor
Length sensor
24V
5V
5V
1CS transport clutch
2CS transport clutch
2CS transport clutch
1CS paper feed clutch
2CS paper feed clutch
2CS paper feed clutch
24V
Interface unit transport clutch
5V
5V
24V
Communication
circuit with
main unit
circuit with
main unit
Main unit
Main unit
Communication
circuit with LCT
circuit with LCT
1CS exhaust
fan motor
fan motor
2CS suction
fan motor
fan motor
2CS exhaust
fan motor
fan motor
24V
24V
24V
24V
Transport
motor
motor
Transport motor
control circuit
control circuit
Assist fan motor
drive circuit
drive circuit
Solenoid/clutch
drive circuit
drive circuit
OUT1
OUT2
1CS descending side power
2CS descending side power
1CS lifting side power
2CS lifting side power
24V
5V
5V
24V
24V
䠄24V䠅
䠄24V䠅
LCT front door open
detection SW
detection SW
Open/close SW
detection circuit
detection circuit
Reverse rotation
detection SW
detection SW
Sensor input
circuit
circuit
1CS insertion detection SW 1
24V
1CS upper limit
protection SW
protection SW
1CS paper empty
detection sensor
detection sensor
1CS suction valve
solenoid
solenoid
5V
2CS insertion detection SW1
24V
2CS upper limit
protection SW
protection SW
5V
2CS paper empty
detection sensor
detection sensor
Communication
circuit with
second series
circuit with
second series
5V
Tray SW PWB
I/F circuit
I/F circuit
5V
Lift motor
drive circuit
drive circuit
5V
Buffer AMP
circuit
circuit
Thermistor Open
detection circuit
detection circuit
Abnormal heating
protection circuit
protection circuit
1CS blowing port
temperature sensor
2CS suction valve solenoid
2CS blowing port
temperature sensor
temperature sensor
24V
To A/D conversion
section of CPU
section of CPU
5V
PSW
2CS heater unit (350W)
2CS heater temperature
sensor installation detection
sensor installation detection
AC100V
AC100V
From
AC relay
PWB
From
AC relay
PWB
1CS heater unit (350W)
1CS heater temperature
sensor installation detection
sensor installation detection
AC100V
AC100V
From
AC relay
PWB
From
AC relay
PWB
LCT MAIN PWB
LCT MAIN PWB
䠄24V䠅
LDSW_R_F1
12V
Hot-air heater
control circuit
control circuit
24V
PR drive for
thermal heater
thermal heater
HL_PR1
HL_PR2
L1HT101
1CS insertion detection SW2
2CS insertion detection SW2
To LCT AC
To LCT AC
relay PWB
relay PWB
relay PWB
PSW
Suction/paper exit
fan motor
drive circuit
fan motor
drive circuit
LCT main unit
LCT main unit
L1DT216_R
L1DT116_R
3.3V
CPU
5V
From DC power unit
From DC power unit
S_GND
3.3V
12V
P_GND
㻞㻠䠲
S_GND
Spectrum
diffusion circuit
diffusion circuit
Clock
Tray lift motor
control circuit
control circuit
Stepping motor
control circuit
control circuit
24V
24V
Power unit
cooling fan
motor
cooling fan
motor
LCT inside temperature/
humidity sensor
humidity sensor
5V
+24V_F5
+24V_F5
+24V_F5
L1HT201
L1PW001
LDSW_R_F4
LDSW_R_F4
䠄24V䠅
LDSW_R_F4
F9
F8
F2
F3
F6
F1
F4
F7
F5
䠄24V䠅
䠄24V䠅
䠄24V䠅
䠄24V䠅
Interface UN
Interface UN
Communication circuit with main unit (main unit connection cable)
Refer to the block diagram
Refer to the block diagram
of the primary side of
of the primary side of
of the primary side of
AC, the heater
AC, the heater
AC, the heater
relay and the
relay and the
relay and the
DC power section.
DC power section.
DC power section.
Reverse rotation
detection SW
detection SW
Lower limit sensor
Upper limit sensor
Lift motor RE sensor
Width sensor 1
Width sensor 2
Width sensor 3
Paper top surface sensor
Length sensor
Upper limit sensor
Lift motor RE sensor
Width sensor 1
Width sensor 2
Width sensor 3
Paper top surface sensor
Length sensor
Lift motor
Assist fan
motor 1
motor 1
Assist fan
motor 2
motor 2
Tray SW PWB
Tray lock/
lock release SOL
lock release SOL
Tray lock sensor
Paper rear edge sensor
1
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: ‘13/Dec
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