Block Diagram - Samsung SRP-275 Service Manual

4-2 Block Diagram

AC adapter
DC24V
Power
+24V
supply
+5V
circuit
Reset
circuit
EEPROM
M24C04
Flash
memory
M29F800
DRAM
K4F151611D
LED &
switch
DIP
Switch
Drawer &
buzzer
Clock
(10MHz)
Rev. 2.00
Data
CPU
Address
S3C4640X01
Data
Address
LED &
button
circuit
DIP
sensing
circuit
Driver
Clock
circuit
(40MHz)
RS-232
driver
IEEE1284
driver
USB
driver
Sensor
circuit
Head
driver
Auto cutter
Drive
Sensor
circuit
PF Motor
Driver
- 50 -
SRP-275
RS-232C
connector
Parallel
connector
USB
connector
Paper end,
home position
sensor
Printer-
head dot
HF motor
driver
HF Motor
Auto cutter,
home position
sensor
Paper near end,
Paper near end-W,
Rear cover open
PF Motor