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Circuit Diagrams and PWB Layouts
Small Signal Board: Audio I/O
1
2
3
AUDIO I/O
A
B
7I17
25
24
23
20
19
18
TEA6422D
R1
R2
R3
R4
R5
R6
+8V
3 VS
C
II72
2 CAP
SUPPLY
BUS DECODER
1 GND
7
8
21
NC
22
L1
L2
L3
L4
L5
L6
D
4
5
6
9
10
11
E
F
7I18
TEA6422D
25
24
23
20
19
18
R1
R2
R3
R4
R5
R6
+8V
G
3
VS
II71
2
CAP
SUPPLY
BUS DECODER
1
GND
7
H
8
NC
21
22
L1
L2
L3
L4
L5
L6
4
5
6
9
10
11
I
8204 000 8321.2
1
2
3
FTP1.1E
7.
4
5
6
9I49
9I42
9I39
B6a,B14d
9I32
SNDR-MAIN-IN
ROUT1
ROUT1 13
B6a,B14d
9I33
SNDR-SEC-IN
ROUT2
15
ROUT2
B14b
9I34
SNDR-BO-IN
ROUT3
17
ROUT3
3IJ0
SDA
28
S-SDA
100R
3IJ1
SCL
27
S-SCL
100R
ADDR
26
B6a,B14d
9I35
SNDL-MAIN-IN
LOUT1
12
LOUT1
B6a,B14d
9I36
SNDL-SEC-IN
LOUT2 14
LOUT2
B14b
LOUT3
16
9I37
SNDL-BO-IN
LOUT3
9I41
9I43
9I48
FID2
B6a , B14d
ROUT1 13
SNDR-MAIN-IN
FID3
B6a , B14d
ROUT2 15
SNDR-SEC-IN
B14b
ROUT3 17
SNDR-BO-IN
3II8
SDA 28
S-SDA
100R
3II9
SCL 27
S-SCL
100R
ADDR 26
FID4
B6a , B14d
LOUT1 12
SNDL-MAIN-IN
FID5
B6a , B14d
LOUT2 14
SNDL-SEC-IN
B14b
LOUT3 16
SNDL-BO-IN
4
5
6
61
7
8
9
10
B
B6a
3IH5
SUBW-SPI-SW
22K
+5V
II73
3IT7
10R
BC847BW
7I00
B6b
SPDIF-IN1
9I59
3IR8
220R
2IA0
B14b
SNDL-SC2-OUT
1u
II67
3II1
B6a
REG-SW
22K
B14b
2IA1
SNDR-SC2-OUT
1u
B14b
SEL_IN_2_B
+5V
B6c
SEL_IN_2_F
II69
3IJ3
7I23-B
BC847BS
22K
B14b
SEL_IN_1_B
+5V
II70
B6c
SEL_IN_1_F
3II7
7I23-A
BC847BS
22K
7
8
9
10
11
12
13
+8V
B14b,d
3IH9
SNDL-SC1-OUT
47K
B6a , B14d
SNDL-SC1-OUT-DC
B6a , B14d
SNDR-SC1-OUT-DC
II65
7I22-A
BC847BS
B14b,d
3II4
SNDR-SC1-OUT
47K
+8V
100n
+8V
2IH2
7I20
3IR1
16
74HC4053
100K
6
VCC
II66
G3
3IR0
+8V
14
100K
II68
MUXDX
B14b
12
2IH0
SPI-1
1y0
11
B14b
2IH1
13
100n
SPI-2
1y1
75R 3IR7
100n
15
B6a
2
7I22-B
SNDL-MON-OUT
2y0
10
BC847BS
B6a , B14d
1
SNDL-SC1-OUT-DC
2y1
4
B6a
5
9
SNDR-MON-OUT
3y0
B6a , B14d
3
SNDR-SC1-OUT-DC
3y1
GND
VEE
8
7
9I57
9I58
B
CL 36532075_029.eps
11
12
13
2I71 B2
2I72 B3
2I73 B3
2I74 B3
2I75 B3
2I76 B3
2I77 C1
2I78 C2
2I79 C2
2I80 E2
2I81 D3
2I82 E3
2I83 D3
2I84 E3
A
2I85 D3
2I86 F2
2I87 F3
2I88 F3
2I89 F3
2I90 F3
2I91 H1
2I92 H2
2I93 H2
2I94 I2
2I95 I3
B
2I96 I3
2I97 I3
2I99 A12
2IA0 B10
2IA1 D10
2IA2 A12
2IA3 B9
2IA7 A11
2IA8 I3
2IF0 I3
2IF1 F3
2IH0 C13
C
2IH1 C12
2IH2 B12
3IH5 A10
3IH6 A10
3IH7 A11
3IH8 C10
3IH9 A12
3II0 C10
3II1 C10
3II2 D10
3II3 D10
3II4 A12
D
3II5 G10
3II6 H10
3II7 H9
3II8 G4
3II9 G4
3IJ0 C4
3IJ1 C5
3IJ2 F10
3IJ3 F9
3IJ4 G10
3IR0 C12
E
3IR1 B12
3IR2 B12
3IR3 B12
3IR4 B12
3IR6 C13
3IR7 C13
3IR8 B10
3IT7 A9
7I00 B10
7I17 B2
7I18 F2
7I20 B12
F
7I22-A A11
7I22-B C10
7I23-A H10
7I23-B F10
9I32 B5
9I33 B5
9I34 C5
9I35 C5
9I36 D5
9I37 D5
9I38 A3
9I39 B4
G
9I40 E3
9I41 D3
9I42 A3
9I43 E3
9I48 E3
9I49 A3
9I57 D12
9I58 E12
9I59 B10
FID2 G5
FID3 G5
H
FID4 H5
FID5 H5
II65 A10
II66 C12
II67 C10
II68 C12
II69 F10
II70 H10
II71 G2
II72 C2
II73 A9
I
151003
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