Read Sharp MX-LC12 (serv.man10) Service Manual online
MX-LC12 ELECTRICAL SECTION 8 – 2
2. Block diagram
LPFM
LLM
CPU
(H8/3687HV)
EEPROM
LCC
M
AIN
PWB
CR
MX-LC12
GND2
Xtal
7.37MHz
LUD
LDD
LPED
LPFD
LTOD
LCD
LRE
LTRC
LPFC
LPFS
LLSW
LDSW
+24V
+24V
+24V
+5V
+5V
+5V
+5V+5V
+5V
+5V
+5V
(TD62003AP)
+24V
-
-
/LPFM
/LPFM-CLK
LPFM-T
/RXD-LCC
/TXD-LCC
/DSR-LCC
/DTR-LCC
RES-LCC
/TRC-LCC
+5V
GND2
+24V
GND1
AC
-L
AC
-N
Heater
Ground
On-board
wr
ite
c
ircuit
Output
b
u
ff
er
Output
b
u
ff
er
+24V
+5V
Input
b
u
ff
er
Input
b
u
ff
er
Input
b
u
ff
er
Input
b
u
ff
er
T
ransistor
arr
a
y
Sensor
input
circuit
Current
control
circuit
Lift
m
otor
dr
iv
e
c
ircuit
P
o
ly
s
w
itch
1.1A
L24VM
LDSW
LLSW
Upper
limit
monitoring
circuit
Upper
d
oor
monitoring
c
ircuit
24V
m
onitoring
circuit
Upper
d
oor
latch
switch
Upper
limit
switch
LCC
lift
m
otor
MX-6240N/7040N
F
F
Tray
upper
limit
sensor
Transport
sensor
Tray
lower
limit
sensor
Paper-on-tray
s
ensor
Main
unit
connection
sensor
Tray
insertion
sensor
Lift
motor
encoder
sensor
LCC
p
aper
feed
clutch
LCC
transport
clutch
LCC
p
aper
feed
solenoid
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