Service manual

MX-LCX2 ELECTRICAL SECTION 11 – 2
2. Block diagram
LPFM
LLM
CPU (H8/3687HV)
EEPROM
LCC MAIN PWB CR
MX-LCX2
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 write circuit
Output buffer Output buffer
+24V
+5V
Input buffer Input buffer Input buffer Input buffer
Transistor array
Sensor input circuit
Current control circuit
Lift motor drive circuit
Poly switch 1.1A
L24VM LDSW LLSW
Upper limit monitoring circuit
Upper door monitoring circuit
24V monitoring circuit
Upper door latch switch Upper limit switch LCC lift motor
MX-2300/2700
FF
Tray upper limit sensor Transport sensor Tray lower limit sensor
Paper-on-tray sensor
Main unit connection sensor Tray insertion sensor Lift motor encoder sensor LCC paper feed clutch LCC transport clutch LCC paper feed solenoid