Argox FM201 - Manual (Page 7)

6
11 Buzzer
To provide the indication of sound.
The generation of frequency & duty
( loudness) of buzzer sound is done by
Timer Z in CPU
0.1uF
C22
C0603
R8
33R
R0603
C21
10uF
C0805
D2
1N4148
SOD80C
2N2222
SOT-23
Q2
3
1
2
+5V
R7
1K
R0603
Buzzer
+
-
BUZZER
12 GRE_LED.
Dual LED (LED3)
Dual Red&Green LED for indication.
13 RED_LED.
Dual LED (LED3)
Dual Red&Green LED for indication.
R9
220R
R0603
LED4
5690F_0 Dual LED
RED_LED
GRE_LED
+5V
R33
220R
R0603
Red/Greed LED
14 N.C.