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EN 37
3139 785 32230
7
Circuit Diagram and PWB Layout
Volume USB: Circuit Diagram
4
3
2
1
S
S
V
E
E
V
2
3
4
5
6
7
8
11
12
16
PSW
9
10
11
12
13
14
15
STB
CLK
D_IO
OSC2
OSC1
1
2
3
10
9
8
7
6
5
GPIO
SEG<1:12>
KS
SEG<20:13>
GRID
GRID
VDD
K
4
RESET
MODE
REMOTE
SDA
SCL
1
2
3
4
1
40kHZ
DISPLAY BOARD
F737 D13
F738 D13
ioSTBY
F709 F3
F710 G3
F711 G3
F712 G3
F713 G3
F715 D10
F716 D9
F717 D11
F726 H3
F727 I3
F728 I4
F729 E8
F730 E10
F733 H12
VOLA
7510 I2
7511 I12
7512 I12
7513 I13
F702 E2
F703 E2
F704 E2
F705 E2
F706 F3
F707 F3
F708 F3
VOLB
F
O
5
0
1
1
M
O
R
F/
O
T
7506 B13
7508 E6
7509 E10
6510 G13
6511 G13
6512 G13
6513 G13
6514 G6
6515 G7
6516 H9
6517 H9
6518 I9
6520 C14
7500 B6
7501 B4
7502 C5
7503 C3
7505 E5
GND_D
3560 F5
3561 E4
3563 E13
3564 E13
3565 E13
3566 E13
3567 E13
5500 B6
5501 B4
6501 D10
6503 E12
6504 E12
6505 E12
6506 E12
6507 E12
6508 E13
6509 G13
3543 I12
3544 I4
3545 I13
3546 I13
3547 I6
3548 I6
3549 I7
3550 I8
3551 I4
3552 I11
3553 I11
3554 I13
3555 E5
3556 E4
3558 F4
3559 F4
NC
3517 B12
3518 B13
3519 B13
3522 C8
3523 C11
3524 D8
3525 D11
3528 D9
3529 E8
3530 E10
3531 E9
3532 E6
3533 E5
3534 F6
3535 F7
3536 F7
3537 E8
3538 G5
3539 G5
3540 H3
3541 H10
3542 I3
+12VSty
2525 I12
2526 I13
2527 I8
2528 I12
2529 I11
2530 F4
2531 F3
3500 B6
3501 C4
3502 B5
3503 C2
3504 C3
3505 C5
3506 E2
3511 B13
3513 B12
1530 E9
1560 G3
1561 F2
2500 B7
2501 B4
2510 C12
2512 E8
2513 D10
2514 E10
2515 E9
2516 E10
2517 E9
2518 E9
2519 F8
2520 F8
2521 F9
2522 F3
2523 F6
2524 H3
+5V_Ever
D
R
A
O
B
O
N
O
M
FROM PSU
5
6
7
8
9
10
11
12
13
14
A
B
C
D
E
F
G
H
I
A
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
S-CS
-24V
GND_MTK
4
G
H
I
1501 D13
1502 F2
1504 E1
1507 H6
1508 H6
1509 H7
1510 H7
1511 H7
1512 H7
1513 H8
1514 H4
1520 C9
IR
S-CLK
S_DAT
1
2
3556
B
C
D
E
F
10K
GND
5
5
5
3
7
K
4
1561
1
BC847B
7513
K
0
1
1
0
5
3
LTL-816EELC
6520
F737
33R
3524
F730
F705
F703
3
2
5
2
n
0
0
1
4K7
3561
n
0
0
1
0
3
5
2
1530
455K
V
6
1
u
0
1
0
0
5
2
2516
10u
K
0
0
1
3
6
5
3
2
GND
4
5
1
OUT
3
VS
TSOP4836ZC1
7510
n
0
0
1
4
2
5
2
K
0
1
2
4
5
3
5501
600R
3544
1K0
BC857B
7512
3
K
3
5
3
5
3
7
K
4
9
4
5
3
8
0
5
6
2
3
4
5
6
7
8
9
6
1
3
S
A
B
WH09D-1
1502
1
3540
100R
10K
3503
F704
SKQNAB
1507
K
0
0
1
5
6
5
3
V
3.
6
u
2
2
1
3
5
2
F738
5
6
1
3
S
A
B
3
1
5
6
WH05D-1
1504
1
2
3
4
1
0
5
7
B
7
4
8
C
B
9
3
5
3
7
K
4
1K0
3504
2
1
5
2
7
u
4
K
2
2
8
2
5
3
3517
4K7
p
0
0
1
7
2
5
2
7
6
5
3
K
0
0
1
6516
6
1
3
S
A
B
5
1
5
6
BAS316
p
0
0
1
8
1
5
2
7
1
5
2
F711
p
0
0
1
7
3
5
3
3
K
3
SKQNAB
1510
6
1
3
S
A
B
5
0
5
6
6
1
3
S
A
B
7
0
5
6
1560
1
GND
SKQNAB
1512
3
1
5
3
7
K
4
F708
3523
33R
F706
3552
2K2
0
1
5
2
0
u
1
F729
100R
3560
F717
n
0
0
1
2
2
5
2
n
0
0
1
3
1
5
2
100n
2514
600R
5500
BAS316
SKQNAB
1509
6518
3559
100R
100R
3558
2K2
3553
3505
10K
B
7
5
8
C
B
0
0
5
7
33R
3522
1
2
WH02D-1
1501
4K7
3518
3
0
5
6
6
1
3
S
A
B
9
1
5
3
R
0
7
4
4
0
5
6
6
1
3
S
A
B
F727
F709
F728
6
1
3
S
A
B
0
1
5
6
7502
BC847B
F716
6
1
3
S
A
B
9
0
5
6
6
6
5
3
K
0
0
1
BC847B
7506
R
0
7
4
1
1
5
3
3
K
3
6
3
5
3
F733
SKQNAB
1511
7
P
2
2
8
P
1
2
9
P
5
1
P
6
1
P
4
1
3
1
7
1
P
2
P
8
2
7
2
3
P
6
2
4
P
5
2
5
P
4
2
6
P
3
2
2
3
2
F
9
2
1
P
0
2
0
1
P
9
1
1
1
P
2
1
P
8
1
7
1
3
1
P
4
1
P
6
1
5
1
5
G
2
6
G
3
G
4
7
8
G
5
9
G
6
0
1
G
7
1
1
G
8
1
1
F
DSP
HUV-08SS57T
1520
4
G
1
4
6
5
3
K
0
0
1
21
22
23
9
4
1
3
3
5
4
4
3
1
5
30
31
32
35
15
36
16
17
18
19
20
4
2
7
6
24
25
26
27
28
29
37
10
11
12
13
3
1
52
46
49
48
47
44
43
42
41
40
39
38
Φ
8
5
50
7
K
4
V63111
7509
0
3
5
3
1
4
5
3
K
0
1
3502
1K0
F710
7
K
4
8
3
5
3
4
1
5
6
6
1
3
S
A
B
F713
3533
10K
6
0
5
6
6
1
3
S
A
B
7
K
4
7
4
5
3
F715
6
1
3
S
A
B
1
1
5
6
7
K
4
6
4
5
3
9
2
5
2
u
0
1
V
5
3
35V
10u
2528
0
5
5
3
7
K
4
F702
BAS316
6517
u
0
1
V
5
3
1
0
5
2
1513
SKQNAB
7511
BC817-25
F712
7505
BC847B
F707
33R
3525
8
4
5
3
7
K
4
5
1
5
2
u
0
1
4
3
5
3
K
6
5
4R7
3506
6
2
5
2
p
2
2
4
5
5
3
K
0
1
BC847B
7508
3551
1K2
SKQNAB
F726
1508
1M0
3531
3
0
5
7
B
7
5
8
C
B
2
K
2
2
3
5
3
p
0
1
1
2
5
2
0
2
5
2
p
0
1
p
0
1
9
1
5
2
1
0
5
6
B-
2.
6
Z
D
P
5
4
5
3
R
0
3
3
1
A
3
B
2
C
4
5
EVE
1514
6
1
3
S
A
B
2
1
5
6
3543
330R
5
2
5
2
n
3
3
0
0
5
3
K
0
1
G(4)
G(3)
D
V
4
2-
D
V
4
2-
-V_FIL
3529
2K2
D
V
4
2-
stdby_2
stdby_1
+5VDSTBY
+5VDSTBY
+5VDSTBY
P(3)
P(2)
P(2)
P(1)
G(7)
G(6)
G(5)
G(1) G(2)
G(8)
P(3)
P(4)
P(1)
P(2)
P(5)
P(6)
P(7)
P(8)
P(9)
P(10)
P(11)
P(12)
P(17)
P(16)
P(15)
P(14)
P(13)
VOLB
stdby_1
switch
+12VSty
-24VD
+12VD
stdby_1
+5VDSTBY
Stby-k1
Stby-k2
Stby-k2
Stby-k1
Erro_Det
+5VDSTBY
switch
stdby_2
+5VDSTBY
VOLB
)
1(
P
Erro_Det
RESET
+12VSty
switch
-24V
REMOTE
RESET
VOLA
LI
F
_
V-
VOLA
)
1(
G
)
2(
G
)
3(
G
)
4(
G
)
5(
G
)
6(
G
)
7(
G
)
8(
G
)
2
1(
P
)
3
1(
P
)
4
1(
P
)
5
1(
P
)
6
1(
P
)
7
1(
P
)
2(
P
)
3(
P
)
4(
P
)
5(
P
)
6(
P
)
7(
P
)
1
1(
P
)
0
1(
P
)
9(
P
)
8(
P
+5VDSTBY
REMOTE
+5VDSTBY
LR-CLK
stdby_2
+12VSty
-24V
VGL+1
VGL-1
+5VDSTBY
+12VD
LR-CLK
VGL+1
VGL-1
3139_243_34054_a2_sh130_sh1.pdf 2006-01-18