Buzzer And Cash Drawer Circuits - Samsung SRP-350PG - SRP 350 B/W Direct Thermal Printer Service Manual

7-3 Buzzer and Cash Drawer circuits

7-3-1 Buzzer Driving Circuit
7-3-4 Cash Drawer Driving Circuit
Caution: make sure that the Cash Drawer solenoid resistance is more than 20
CPU
Samsung Electro-Mechanics
BUZZER
CPU
ON/OFF
CONTROL
Figure 7-4 Buzzer Block Diagram
DWR1 / 2
DWR_COMP1
+5V
0V
+24V
0V
Figure 7-5 Cash Drawer Block Diagram
BUZZER
DRIVING
CIRCUIT
DRAWER
DRIVING
CIRCUIT
70ms
7 Special Circuit Descriptions
2 [KHz]
+24V
SOLENOID
COMPULSORY
[DRAWER]
7-3