7.
Circuit Diagrams and PWB Layouts
Small Signal Board (AB): Audio I/O
NC
SUPPLY
BUS DECODER
NC
SUPPLY
BUS DECODER
MUXDX
B14b
B15b
B1
B14b
B14b
B6a,B14d
9I58 E11
FID2 G4
FID3 G4
FID4 H4
FID5 H4
II65 A10
II66 C12
II67 C9
II68 C11
II69 F9
II70 H9
II71 G1
II72 C1
II73 A9
B14b
B14c
B1 --> B20
3IR7 C12
3IT7 A8
7I17 B1
7I18 F1
7I20 B11
7I22-A A10
7I22-B C10
7I23-A H9
7I23-B F9
9I32 B4
9I33 B4
9I34 C4
9I35 C4
9I36 D4
9I37 D4
B14c
B6a
RES
B6a
B6a
B6a
RES
9I57 D11
9I59 B9
3II5 G9
3II6 H9
3II7 H9
3II8 G4
3II9 G4
3IJ0 C4
3IJ1 C4
3IJ2 F9
3IJ3 F9
3IJ4 G9
3IR0 C12
B6a , B14d
B6a,B14d
3IR1 B12
3IR2 B11
3IR3 B11
3IR4 B12
3IR6 C12
3IR8 B9
2IF0 I3
7I00 B9
2IH0 C12
2IH1 C12
2IH2 B12
3IH5 A9
3IH6 A10
3IH7 A10
3IH8 B9
3IH9 A11
3II0 C10
3II1 C9
3II2 C9
3II3 D9
3II4 A11
B14b
B6c
B6a
B14b
B14b
B6a
RES
2I87 F2
B14b
2I89 F2
2I91 H1
2I92 H1
2I93 H1
2I94 I2
2I95 I2
2I96 I2
2I97 I2
2I98 I2
2I99 A11
2IA0 B9
2IA1 D9
2IA2 A12
2IA3 B9
B14d
B14b
B14b
B1 --> B20
B14b,d
B14b
B6a , B14d
B14b
2IA7 A11
D
2IF1 F3
F
G
H
I
A
B
C
D
E
F
G
H
I
B6c
B14b
2I88 F2
B6a , B14d
2I90 F2
B14b
B14b
6
7
8
9
10
11
12
A
B
MATRIX SWITCH
MATRIX SWITCH
B1
B14b
B14b
B6a , B14d
C
3
E
5
6
7
8
9
10
11
12
1
2
3
4
5
B6b
B14b,d
B6a , B14d
1
B14b
B14b
RES
B6a
2
2I72 B2
4
2I74 B2
2I75 B2
2I76 B3
2I77 C1
2I78 C1
2I79 C1
2I80 D2
2I81 D2
2I82 D2
2I83 D2
2I84 D2
2I85 D3
2I86 F2
B6a,B14d
B14b
B14b
B6a,B14d
B14b
+5V
B14b
2I71 B2
2I73 B2
1u
2I94
2I71
1u
2I96
1u
100n
2IH1
7I23-A
BC847BS
II70
22K
3IJ3
10K
3II5
3IR4
22K
1u
+8V
47K
3IR2
2I83
100R
3IJ0
2I87
1u
3II4
2IH2
100n
3IT7
10R
47K
1u
2IA0
1u
1u
2I86
2IA1
1u
2I95
SDA 28
VS
3
47K
3II3
14
LOUT2
LOUT3 16
7
8
21
22
R1
25
24
R2
R3
23
R4
20
R5
19
R6
18
13
ROUT1
ROUT2 15
ROUT3 17
SCL 27
TEA6422D
7I17
ADDR 26
CAP
2
GND
1
L1
4
L2
5
L3
6
L4
9
10
L5
L6
11
LOUT1 12
BC847BS
7I23-B
+8V
3IH5
22K
100R
9I33
9I59
3IJ1
II69
1u
2I72
9I58
2I99
1u
II71
II67
7I22-A
+8V
BC847BS
9I57
1u
3IH6
22K
2I92
47K
3IH9
3II1
22K
1u
2I82
3II2
22K
1u
2IA2
II73
II65
7I22-B
BC847BS
3II7
22K
9I36
22u
2I93
1u
2I78
9I32
2I80
3IH8
1u
47K
3IR8
220R
+8V
3IR7
75R
9I34
2I90
100K
3IR0
1u
2IF1
1u
1u
2I91
FID4
FID2
1u
2I73
7I00
BC847BW
1u
2I84
+8V
+8V
1u
2I77
22K
3IJ4
FID3
+5V
FID5
3IR6
75R
1u
2IF0
1u
1u
2I76
2I75
10K
3II0
9I35
3IR3
47K
1u
1u
2I85
2I74
3IR1
100K
II72
1u
2I81
2IA7
1u
II68
+5V
II66
2IA3
100n
VCC
7
VEE
11
10
9
3IH7
10K
7I20
12
1y0
13
1y1
14
2y0
2
1
2y1
15
5
3y0
3
3y1
4
6
G3
8
GND
16
74HC4053
3IJ2
10K
22u
9I37
2I79
1u
2I88
100R
3II9
2IH0
100n
SCL
28
SDA
3 VS
3II6
22K
LOUT1
14
LOUT2
16
LOUT3
7
8
21
22
25
R1
24
R2
23
R3
20
R4
19
R5
18
R6
13
ROUT1
15
ROUT2
17
ROUT3
27
7I18
26
ADDR
2 CAP
1 GND
4
L1
5
L2
6
L3
9
L4
10
L5
11
L6
12
3II8
1u
2I89
TEA6422D
1u
2I97
100R
SNDR-MON-OUT
SNDL-MON-OUT
SNDL-SC1-OUT-DC
SNDR-SC1-OUT-DC
2I98
1u
SNDR-SC1-OUT
2Fh1_R
SNDR-BO-OUT1
R-FRONT-IN
AR-SC4-IN
AL-SC4-IN
SNDR-MAIN-IN
SNDR-SEC-IN
SNDL-MAIN-IN
SNDL-SEC-IN
SPI-1
SPI-2
SPDIF-IN1
SNDR-BO-IN
SNDL-MAIN-IN
SNDL-SEC-IN
SNDL-BO-IN
SEL_IN_2_B
SNDR-SC1-OUT-DC
SNDL-SC1-OUT-DC
SNDL-BO-OUT1
SNDR-BO-IN
SNDL-SC1-OUT
2Fh1_L
REG-SW
SNDL-SC2-OUT
SNDR-SC2-OUT
SNDL-SC1-OUT
SNDR-SC1-OUT
SEL_IN_2_F
SEL_IN_1_B
SEL_IN_1_F
SNDL-BO-IN
LOUT1
LOUT2
LOUT3
MONO-PIP
ROUT1
ROUT2
ROUT3
MONO-PIP
S-SDA
S-SCL
SNDR-MAIN-IN
SNDR-SEC-IN
LOUT1
ROUT1
LOUT2
ROUT2
LOUT3
ROUT3
AL-SC1-IN
AL-SC2-IN
AL-SC3-IN
L-FRONT-IN
AR-SC1-IN
AR-SC2-IN
AR-SC3-IN
S-SDA
S-SCL
SUBW-SPI-SW
B14D
B14D
E_13450_034.eps
291204
8204 000 8302.7
AUDIO I/O