Lsi Diagram - Casio SE-S10 Service Manual

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LSI DIAGRAM

CPU
uPD70F3738GC
-UEU-AX
20MHz
VDD=EVDD
= AVREF0 = AVREF1
=2.3 ~ 3.6V
Backup
Internal RTC
PWD
RESET
Local_BUS
AD0-AD7
A8-A14
A20(CS signal)
Multiplex
3.3V drive
LED drive signal
Rear display ON/OFF Control
Drive
Drive
KC4
KI0-7
KC0-3
stb drive
Motor drive
Sensor
Drive
Chip selection
3-line serial (Common)
Chip selection
SRAM 256kB Data backup
14 SEG LED
7SEG LED
LED
Drawer
BUZZER
SWITCH
KEY
SHEET
Thermal
printer
Wide
motor
EJ 256kB
RAC12 4MB
— 32 —
Main display only
Main display and
Rear display
Transaction
KC4
KI4-KI7
KC0-KC3, MODE COM
KI0-KI7
Journal and Journal
Journal Volume removing
Serial FROM 2MB
Serial FROM 32MB