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LSI DIAGRAM
6666
PWD
RESET
CPU
uPD70F3738GC
-UEU-AX
20MHz
VDD=EVDD
= AVREF0 = AVREF1
=2.3 ~ 3.6V
Backup
Internal RTC
Local_BUS
AD0-AD7
A8-A14
A20(CS signal)
Multiplex
3.3V drive
LED drive signal
Rear display ON/OFF Control
Drive
Drive
KC0-3
KC4
KI0-7
3-line serial (Common)
Chip selection
Chip selection
Drive
Sensor
Motor drive
stb drive
SRAM 256kB
Data backup
Main display only
Transaction
Main display and
Rear display
14 SEG LED
LED
KC4
KI4-KI7
SWITCH
KC0-KC3, MODE COM
KI0-KI7
KEY
SHEET
Journal and Journal
Thermal
printer
Journal Volume removing
Wide
motor
Serial FROM 2MB
EJ 256kB
Serial FROM 32MB
RAC12 4MB
Drawer
BUZZER
7SEG LED
Содержание PCR-T280
Страница 35: ... 33 PCB LAYOUT 777 E276 1 PCB E276 PR PCB ...
Страница 36: ... 34 E276 E2 PCB Main display E276 E22 PCB Rear display ...
Страница 38: ... 36 Model Name Board No Drawing No RJE503230D303 MIAN BOARD EX 276 E276 1 CASIO COMPUTER CO LTD ...
Страница 39: ... 37 Model Name Board No Drawing No RJE503230D305 MIAN DISPLAY BOARD EX 276 E276 E2 CASIO COMPUTER CO LTD ...
Страница 40: ... 38 Model Name Board No Drawing No RJE503230D306 REAR DISPLAY BOARD EX 276 E276 E22 CASIO COMPUTER CO LTD ...
Страница 41: ... 39 Model Name Board No Drawing No CASIO COMPUTER CO LTD RJE503230D404 PRINTER I F BOARD EX 276 E276 PR ...
Страница 44: ... 42 44 42 41 45 43 40 41 44 43 42 41 40 35 S4 36 37 38 34 39 45 ...
Страница 51: ...CASIO COMPUTER CO LTD Overseas Service Division 6 2 Hon machi 1 Chome Shibuya ku Tokyo 151 8543 Japan ...