7 Special Circuit Descriptions
7-3
7-3 Buzzer and Cash Drawer circuits
7-3-1 Buzzer Driving Circuit
9;; /
$#'-#,%"- 3<3#(
Figure 7-4 Buzzer Block Diagram
7-3-4 Cash Drawer Driving Circuit
$4&4%)-( :&
44%)-( . &%
(/
&
Caution:
make sure that the Cash Drawer solenoid resistance is more than 20
Ω
Figure 7-5 Cash Drawer Block Diagram
BUZZER
≈
≈
CPU
BUZZER
DRIVING
CIRCUIT
2 [KHz]
ON/OFF
CONTROL
DWR1 / 2
[DRAWER]
+24V
COMPULSORY
70ms
+5V
+24V
DWR_COMP1
CPU
DRAWER
DRIVING
CIRCUIT
0V
0V
SOLENOID
Samsung Electro-M
e
chanics
Summary of Contents for SRP-350U
Page 2: ...About Notes Precaution symbols Samsung Electro Mechanics ...
Page 4: ...Overview of this Receipt Printer Samsung Electro Mechanics ...
Page 7: ...1 Precaution Statements 8 6 0 A 6 8 9 8 4 8 8 1 3 Samsung Electro Mechanics ...
Page 8: ...1 Precaution Statements 1 4 MEMO Samsung Electro Mechanics ...
Page 26: ...2 Product Specifications 2 18 MEMO Samsung Electro Mechanics ...
Page 34: ...3 Installation and Operation 3 8 MEMO Samsung Electro Mechanics ...
Page 63: ...7 Special Circuit Descriptions 7 12 MEMO Samsung Electro Mechanics ...
Page 113: ...12 Block Diagram 12 2 MEMO Samsung Electro Mechanics ...
Page 115: ...13 Wiring Diagram 13 2 MEMO Samsung Electro Mechanics ...
Page 125: ... SAMSUNG ELECTRO MECHANICS Co Ltd January 2004 Printed in Korea ELECTRO MECHANICS ...