Chapter 4. Hardware Description - Sharp ER-A440 Service Manual

CHAPTER 4. HARDWARE DESCRIPTION

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