Schematics

1 2 3 4
A
B
C
D
4321
D
C
B
A
RevisionSheet ofSize
Date:
Date:
Date:
Drawing By:
Checked By:
Approved By:
Title:
Spin Master (DongGuan)
Toys Co., Ltd.
Model NO:
A4 1 1
67856TX
V1A
ANT1
Y1
12M
C3
18P
C7
18P
C1
1P
C6
0.1uf
ANT
1
VSS2
2
PA2/ AIN2/ PWM3/SDI
3
PA3/ AIN3/ SDO
4
PA4/ AIN4/SCK
5
VDD
6
PA6/ Xin
7
PA7/ Xout
8
PA5/ RSTb/ VPP
9
PB3/ AIN8/ PWM1/
10
PB2/ AIN7/ PWM2/
11
PB1/ AIN6/ IR/ INT1
12
PB0/ AIN5 /INT0
13
VDD2
14
XTALO
15
XTALI
16
U1
BL2402D
LR
S3
L Fine tune
C2
1P
C4
0.1UF
C8
0.1UF
FB
PC2PC1
S2
R Fine tune
PC2
PC1
BAT1
AAA*2=3V
C5
0.1uf
F1
FUSE/1A
R1
1K
Q1
8050
U2
BELL
BELL
S1
ON/OFF
R2
1K
D1
BLUE LED
BELL
VR2
RJ09A-H-B5Kb(90)-G-Y03
VR1
RJ09A-H-B5Kb(90)-G-Y03
LR FB
VDD
VDD
VDD
C9
0.1uf
25/01/2021
Jack Xu