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ER-A440 (serv.man4). ERA440 Service Manual - Sharp ECR Service Manual (repair manual). Page 8

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CHAPTER 4. HARDWARE DESCRIPTION
1. Hard ware block diagram
Fig. 1-1
CPU
GATE ARRAY
MPCA7
DRAWER
STANDARD
RAM1
32KBx2
OPTIONAL
RAM
512KB
ER-03RA:512KB
STANDARD
ROM
256KB
SWITCH
KEY BOARD
RS232
I/F
1 ports
CKDC8
1 LINE
7SEG   7DIG
1 LINE
7SEG  10DIG
CUSTOMER DISPLAY
OPERATER DISPLAY
PRINTER
DP-730
RAM2
4 – 1
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