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MX-LC17 N ELECTRICAL SECTION 5 – 1
MX-LC17 N
Service Manual
[5] ELECTRICAL SECTION
1. Block diagram
RXD-LCC
DSR-LCC
TXD-LCC
DTR-LCC
RES-LCC
L24VM
GND2
5V
24V
GND1
F.G.
3.3V
/TRC-LCC
AC-L
AC-N
+24V
+24V
+24V
5V
5V
+24V
+24V
Output buffer
12.2MHz
On-board write circuit
24
V monitoring
circuit
Paper feed motor （
LP
FM
）
Upper limit switch
（
LLS
W
）
Upper limit monitoring circuit
Lift motor drive circuit
Poly switch
1.1A
Current control circuit
Lift motor
（
LLM
）
Sensor input circuit
Tray lower limit sensor
（
LDD
）
Tray paper empty sensor
（
LP
E
D
）
Paper transport sensor
（
LP
FD
）
Connect sensor
（
LCCD
）
Lift motor encoder sensor
（
LRE
）
Paper feed clutch （
LP
FC
）
Transport clutch （
LTRC
）
Paper feed solenoid （
LP
FS
）
Clutch drive circuit
Main unit
LCC
MAI
N
PW
B
Tray upper limit sensor
（
LU
D
）
3.
3V circuit
24V
/LPFM_EN
/LPFM-CLK
LPFM-T(LD)
Fuse
Heater
Lift up circuit
Downward circuit
Reverse winding monitoring circuit
Paper upper surface sensor
(LP
U
D
)
CPU
LPCW
Right door close switch
（
LCLS
W
）
Right door monitoring circuit
Reverse winding detection switch
（
LW
RS
W
）
Fuse
Paper transport sensor2
(LP
FP
D
)
Output buffer
Input buffer
Output buffer
Input buffer
Input buffer
Input buffer
Input buffer
Solenoid drive circuit
Clutch drive circuit
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