EC Line EC-PM-80320 - Control Systems Principle Frame

EC-PM-80320 Service Manual
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4.3.4 Control System’s Principle Frame
Thermal motor control system’s principle frame:
8MB SDRAM
Electrify replacement
Top case sensor
Paper sensor
Paper near end sensor
Tem
p
erature senso
r
Cashbox switch control
Paper feeding motor drive
Power indicator
Error indicator
Paper out indicator
(FEED) key
AT91SAM7SE32
(RAM)
Thermal print head circuit
Paper cutter drive
Interface card
(Ethernet interface,
parallel interface and
serial interface)
USB interface
(standard equipped)
4MB
SPI Flash
Address
Bus
16-bit
Data Bus
Note: working under +24v independent power, and key parts of system work under 3.3v.