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ER-A310 (serv.man2). ERA310 330 Service Manual - Sharp ECR Service Manual (repair manual). Page 9

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2) ER-A330
CPU
µPD78045
S-RAM
256 kbit
ADDRESS
LATCH
PRINT WHEEL
MG DRIVER
STAMP, PAPER
FEED DRIVER
STEP MOTOR
DRIVER
PRINTER
UCR-812A
SEGMENT 
DRIVER
DIGIT DRIVER
OP.
DISPLAY
7SEG LED
10DIG
POP-UP
DISPLAY
7SEG LED
7DIG
DRIVER
DRIVER
DRAWER
BUZZER
KEYBOARD
8X9 72KEY
MODE
SWITCH
8SIGNAL
DC-DC 
CONVERTER
DRY BATTERY
VOLTAGE
REGULATOR
TRANSFORMER
PRINTER POWER SOURCE : +18V
DISPLAY POWER SOURCE : +5.5V
ADDRESS 
BUS
HAMMER COMMON SIGNAL
LATCH
SIGNAL
DIGIT SIGNAL
STROBE
SIGNAL
RETURN
SIGNAL
ADDRESS 
BUS
DATA BUS
DRIVE SIGNAL
 DRIVE SIGNAL
DRIVE SIGNAL
TIMING SIGNAL
DRIVE SIGNAL
DRIVE SIGNAL
CHIP SELECTSIGNAL
ONE
HOLE
CASHIER
KEY
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