Block Diagram - Samsung ER-220 Service Manual

1.SYSTEM BLOCK DIAGRAM
Vv
POWER Bae ae! DISPLAY a DISPLAY
SUPPLY ae DRIVER
VDD | VPF
RESET
K CIRCUIT eae? PRINTER
DRIVER
CPU
POWER FAIL
CIACUIT 8032
CASH DRAWER
Wi
CLOCK
12MHZ
CLOCK
32. 768KHZ
REAL TIME
CLOCK
RPSC15 KEY BOARD
BUZZER
BACK UP DATA MEMORY PEDGHAM
BATTERY MEMORY