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3. ELECTRONICS
EO18-33013
3.3 Main PC Board
3- 2
3.3 Main PC Board
PCB Layout (Parts side)
CPU
ROM
ROM
CPLD
Black Mark Sensor & Gap
Sensor (Photo Diode) CN
Peel Sensor CN
DRAM
Decoder by CPLD
Stepping Motor CN
Stepping Motor
Driver
Print Head
CN
DC-DC Regulator
24V/5V
Power Switch
AC Adapter
RS232C Driver
RTC
Parallel Port
ECP Controller
USB CN
Battery 3.6V
USB Controller
Key & LED CN
Gap Sensor (Photo
Transistor ) CN
Head Open
Sensor CN
RS232C CN
Cutter CN