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1
D
VFD
HL-D685
C
P8
22
P7
21
P6
20
P5
19
P4
18
P3
17
P2
16
P1
15
14
13
+5V
12
R?
R?
10K
10K
B
D2
OPEN/CLOSE
4148
P13
PLAY/PAUSE
D1
4148
P12
A
1
2
DA216CT VER0
34
SG8
GR4
35
SG7
GR3
36
SG6/KS6
GR2
37
SG5/KS5
GR1
38
SG4/KS4
VDD
IC1
39
SG3/KS3
LED4
PT6312
40
SG2/KS2
LED3
41
SG1/KS1
LED2
42
VDD
LED1
43
K4
VSS
44
K3
OSC
KCON
ENCODER
EN-
EN+
GND
STOP
SOURCE
STD
2
3
1
F2
2
2
F1
1
3
VEE
4
GND
31
32
4PIN
J2
G2
G3
G4
G5
+5V
FAN
R9
4.7K
+5V
C4
104P
R8
33K
C5
100uF/10V
R7
R5
R5
10K
10K
10K
C2
101P
R1
R2
R3
R4
R10
10K
10K
10K
10K
10R
+5
J4
+5V
6
REM
5
STB
4
CLK
3
DTA
2
GND
1
3
4
D
Q1
8050
LED1
BLUE
LED2
BLUE
R?
R?
120R
120R
Q2
8050
LED4
BLUE
LED5
BLUE
R?
R?
120R
120R
C
R?
120R
Q3
8550
LED3
RED
C3
C1
101P
101P
+5V
+5V
B
DTA
CLK
STB
REM
GND
REM
A
4
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