Special Circuit Descriptions - Samsung SRP-350PG - SRP 350 B/W Direct Thermal Printer Service Manual

7 Special Circuit Descriptions

7-1 Power Circuit
POWER
ADAPTER
+DC24V
NO.
1 V (+24VDC)
DR
2 V (+5VDC)
CC
3 V (+24VDC)
TPH
7-1-1 Drawer Driving and Feed, Auto Cutter Motor Voltage : +24Vdc
7-1-2 Logic IC Driving Voltage: +5V
7-1-3 TPH Driving Voltage: +24Vdc
Samsung Electro-Mechanics
Figure 7-1 Power Block Diagram
V (+24V)
DR
VOLTAGE
Table 7-1 Power Source Voltage Descriptions
VOLTAGE
REGULATION
CIRCUIT #1
VOLTAGE
REGULATION
CIRCUIT #2
VOLTAGE
REGULATION
CIRCUIT #3
MAIN BOARD
DESCRIPTION
Cash Drawer Solenoid Driving / Step Motor Voltage
Logic IC Driving Voltage
Thermal Printer Head(TPH) Voltage
V (+24V)
DR

  
V (+5V)
CC

 
V (+24V)
TPH

    
7-1