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5
LED+KEY BOARD SCHEMATIC DIAGRAM
R527
R526
10K/ NC
10K/ NC
VOL
UP
3
D
2
DW
DW
DW
DW
1
CB506
CB533
3 HEADER
CB507
ESD
150pF
150pF
VCC
4/2.0 HEADER
J500
SW5
POWER/STB
3
4
1
STB
1
2
2
3
SPOWER1
KEY
4
C
D511
LED DIP2.54
J506
LED
R523 220
4
GND
3
POWER/STB
2
STB
1
CB522
CB523
CB524
4/2.0 HEADER
CB501 150pF
NC ESD
NC ESD
ESD
CB502 150pF
B
R502
VCC
CB539
ESD
3/2.5 HEADER
K_L0
100
R528
3
2
K_R0
100
R529
1
CB531
CB516
CB517
CB530
J510
ESD/NC
0.1uF /NC
ESD/NC
0.1uF /NC
J511
A
K_L1
100
R530
3
2
K_R1
100
R531
1
CB529
CB518
CB519
CB528
3/2.0 HEADER
ESD/NC
ESD/NC
0.1uF /NC
0.1uF /NC
5
4
U300
F2
CB532
ESD
-24V
VCC
U520
40
GR5
VCC
41
GR4
42
GR3
43
GR2
44
GR1
45
VDD
PSW
46
VFD
CONTROLLER
PSW
47
GPIO4
V63111
48
GPIO3
SG4/KS4
49
GPIO2
SG3/KS3
50
GPIO1
SG2/KS2
51
GND
SG1/KS1
52
OSC2
Y505
455KHz
22K
R501
2K2
R503
10K
+
CE501
47uF/10V
1
2
3
VCC
J515/ MP3
1
2
3
J508/ MIC
4
3
VFDA
200780-1A0
F1
PSW
26
SG12
25
SG11
24
SG10
23
SG9
22
SG8
21
SG7
20
SG6
19
SG5
18
17
16
15
VCC
14
VDD
CB538
CB521
CB536
V63111/SMD
0.1uF
0.1uF
PT6-52-1
0.1uF
STB
SW1
SW2
3
4
3
4
1
2
1
2
OPEN/CLOSE
KEY
PLAY/PAUSE
KEY
SW3
POWER/STB
3
4
1
2
STOP
KEY
SW4
3
4
1
2
SOURCE
KEY
3
2
USB
4
R534
3
R535
2
R536
1
VCC
R518
4.7K
R516
2
10K
Reset
R519
0
3
IMP810
CE5xx
Q501
+
10uF/16V
1
VCC
VCC
R520
4.7K
IR
R521
33
CB537
IR_V6111
ESD
CB515
22pF
IR
GND
VFD_CLK
VFD_STB
VFD_DATA
UP
R524
0
U_P
DW
R525
0
DONW
BT-14S
2
1
J512
GND
1
33
UP
2
33
UB
UB
3
0
+5V
4
4 HEADER
CB520
CB525
CB526
CB527
ESD
ESD
ESD/NC
0.1uF
STB ON/OFF
1/0
J507
ON/OFF
1
R540
0R
VCC
2
GND
3
CE506
-24V
4
+
CB514
CB535
F2
5
F1
6
10uF/10v
0.1uF
0.1uF
6 HEADER
R541
NC 0
J505
7 HEADER
1
2
3
4
5
6
R537
NC 0
7
8
R539
NC 0
IR501
R517
10
VCC
CE502
R505 10K/NC
+
CB513
10uF/10V
0.1uF
1
D
C
B
A
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