Block Diagram - Sharp AR-LC1 Service Manual

Control circuit

Block diagram

RXD-
TXD-
DSR-
DTR-
RES-
VCC
GND2
Copier
+24V
GND1
FG
CPU(H8/3294)
Operation unit
8MHz
Xtal
Power supply
monitoring unit
24V
Power supply
10 V circuit
10V
Large-capacity tray control PWB
Large-capacity tray
Lift motor drive
circuit
Solenoid drive
circuit
LED lighting circuit
Sensor input
circuit
Transfer motor
drive circuit
10 – 2
Upper limit sw (LLSW)
24V
Lift motor (LLM)
Paper amount detection
sensor (LRE)
Paper feed clutch (LPFC)
Paper feed solenoid (LPFS)
LLED
Cassette detection line (LCD)
Upper limit detection sensor (LUD)
Lower limit detection sensor (LDD)
Paper detection sensor (LPED)
Paper delivery detection sensor
(LPFD)
Copier connection sensor
Door open switch (LDSW)
Transfer motor (LPFM)
10V