Sharp XE-A202 Service Manual - Page 7
Hardware Description
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UPC - 074000048270
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CHAPTER 4. HARDWARE DESCRIPTION 1. HARDWARE BLOCK DIAGRAM POWER SUPPLY STANDARD DRAWER. DRIVER , SENSOR CPU ROM : 256K Byte RAM : 20K Byte Data bus Address bus RAM 128K Byte PRINTER M-T53II PAPER TAKE UP MOTOR 4 to 16 DECORDER Seg. DRIVER Dig. DRIVER POPUP FRONT LED KEY SCAN SIGNAL KEYBOARD MODE SWITCH KEY RETURN SIGNAL RS232C DRIVER RS232 XE-A202U HARDWARE DESCRIPTION - 6 -
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XE-A202U
HARDWARE DESCRIPTION
– 6 –
CHAPTER 4. HARDWARE DESCRIPTION
1. HARDWARE BLOCK DIAGRAM
CPU
ROM : 256K Byte
RAM :
20K Byte
DRIVER , SENSOR
PRINTER
M-T53
II
PAPER TAKE
UP MOTOR
RAM
128K Byte
Data bus
Seg. DRIVER
Dig. DRIVER
POPUP
FRONT
LED
KEY RETURN SIGNAL
KEY SCAN SIGNAL
RS232C
DRIVER
RS232
4 to 16
DECORDER
KEYBOARD
MODE SWITCH
STANDARD
DRAWER.
POWER SUPPLY
Address
bus