Samsung SRP-350PG Service Manual - Page 54
Buzzer and Cash Drawer circuits
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7-3 Buzzer and Cash Drawer circuits 7-3-1 Buzzer Driving Circuit 7 Special Circuit Descriptions CPU BUZZER ON/OFF CONTROL BUZZER DRIVING CIRCUIT ≈ ≈ 2 [KHz] Figure 7-4 Buzzer Block Diagram 7-3-4 Cash Drawer Driving Circuit Caution: make sure that the Cash Drawer solenoid resistance is more than 20Ω CPU DWR1 / 2 DRAWER DRIVING CIRCUIT +24V SOLENOID DWR_COMP1 +5V 0V +24V 0V 70ms COMPULSORY [DRAWER] Figure 7-5 Cash Drawer Block Diagram Samsung Electro-Mechanics 7-3
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7
Special Circuit Descriptions
7-3
7-3
Buzzer and Cash Drawer circuits
7-3-1 Buzzer Driving Circuit
±²¸µ9¿;;¸¼µ³´µ¿´¸¾µ·ºµ³Àʺ¼¹µ´¸Í¸¼½Éµ/³À¾´µºÊµ´·½·¸´µÈ²³Å²µºÅÅ¿¼µ¿À¾¸¼µ´¶´·¸¹µº»¸¼½·³Àε½À¾µÎ³Í¸´µ´º¹¸µ³Àʺ¼¹½·³ºÀ
·ºµ¿´¸¼´µ$¶µÅºÀ·¼ºÉɳÀε·²¸µ#'Ç-µºÊµÌ#,%"ÆÃ-°3<3#(Ç
Figure 7-4 Buzzer Block Diagram
7-3-4 Cash Drawer Driving Circuit
±²¸µÅ³¼Å¿³·µ³´µ¿´¸¾µÊº¼µº»¸À³ÀεŽ´²µ¾¼½È¸¼µ½À¾µ¾¼³Í¸Àµ$¶µ·²¸µ4Á&4Â%Ë)-Ã(ǵ µ :²¸Àµ³·´µ´·½·¸µ³´µ²³Î²µÉ¸Í¸Éµ´³ÎÀ½É&
4Áµº¼µ4µ%Ë)-Ã(µ¾¼³Í¸µ·²¸µ´ºÉ¸Àº³¾µ·ºµº»¸Àµ·²¸µÅ½´²µ¾¼½È¸¼Çµ µ .´µ½Àµº»·³ºÀ½Éµ³·¸¹&µÈ¸µ»¼ºÍ³¾¸µ´¸À´º¼µ´È³·Å²µ%ȸµÅ½ÉÉ
³·µ½µÅº¹»¿É´º¼¶µ´È³·Å²(µÈ²³Å²µÅ²¸Å/´µ·²¸µ¾¼½È¸¼µÈ²¸·²¸¼µ³·µ³´µº»¸À¸¾µº¼µÀº·Çµ µ ±²³´µ´¸À´º¼µ´È³·Å²µ·¿¼À´µºÀµÊº¼µ·²¸
¾¼½È¸¼µº»¸ÀµÅºÀ¾³·³ºÀ&µ½À¾µ·¿¼À´µºÊʵʺ¼µ·²¸µº·²¸¼Ç
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