Philips EM6E Service Manual page 73

Circuit Diagrams and PWB Layouts
Small Signal Board: Audio I/O
1 2 3
AUDIO I/O
A
B 7I17
TEA6422D 25 24 23 20 19 18
R1 R2 R3 R4 R5 R6
+8V
3 VS
II72
C 2 CAP
SUPPLY BUS DECODER
1 GND
7
8
NC
21
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 8143.7
1 2 3
EM6E AB 7.
4 5 6
9I49
9I42
MATRIX SWITCH
B6a
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
9I35
SNDL-MAIN-IN
LOUT1 12
LOUT1
B6a,B14d
9I36
SNDL-SEC-IN
LOUT2 14
LOUT2
B14d
LOUT3 16 9I37
SNDL-BO-IN
LOUT3
9I43
9I48
MATRIX SWITCH
FID2 B6a , B14d
ROUT1 13
SNDR-MAIN-IN
FID3
B6a
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
LOUT1 12
SNDL-MAIN-IN
B6a
FID5
LOUT2 14
SNDL-SEC-IN
B14b
LOUT3 16
SNDL-BO-IN
4 5 6
82
7 8 9 10
B1 --> B18
B6a
3IH5
SUBW-SPI-SW
22K
+5V
II73
3IT7
10R BC847BW
7I00
B6b
SPDIF-IN1
9I59
3IR8
220R 2IA0
SNDL-SC2-OUT
1u
II67
3II1
B6a
REG-SW
22K
2IA1
SNDR-SC2-OUT
1u
B14b
SEL_IN_2_B
+5V
II69
B6b SEL_IN_2_F
3IJ3
7I23-B
BC847BS
22K
B14b
SEL_IN_1_B
+5V
II70
B6b SEL_IN_1_F
3II7
7I23-A
BC847BS
22K
7 8 9 10
11 12 13
+8V
B6a , B14b
3IH9
SNDL-SC1-OUT
47K
B6a , B14b
SNDL-SC1-OUT-DC B6a , B14b
SNDR-SC1-OUT-DC
II65
7I22-A
BC847BS
B6a , B14b
3II4
SNDR-SC1-OUT
47K
+8V
100n
SWITCH
+8V 2IH2
3IR1
7I20
16
74HC4053
100K
6 VCC II66
G3 3IR0
+8V
100K
14
II68
MUXDX 2IH0 B14b
12
SPI-1
1y0
11
B14b
2IH1
13 100n
SPI-2
1y1
3IR7
100n
15
B6a
75R
2
7I22-B SNDL-MON-OUT
2y0
10
BC847BS B6a , B14b
1
SNDL-SC1-OUT-DC
2y1
4
B6a
5
9
SNDR-MON-OUT
3y0
B6a , B14b
3
SNDR-SC1-OUT-DC
3y1
GND VEE
8 7
9I57
9I58
B1 --> B18
CL 36532008_045.eps
11 12 13
2I71 B2
2I72 B3
2I73 B3
2I74 B3
2I75 B3
2I76 B3
2I77 C1
2I78 C2
2I79 C2
2I80 D2
2I81 D3
2I82 D3
A
2I83 D3
2I84 D3
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
2I98 I3
2I99 A12
2IA0 B10
2IA1 D10
2IA2 A12
2IA3 B9
2IA7 A11
2IF0 I3
2IF1 F3
C 2IH0 C13
2IH1 C12
2IH2 B12
3IH5 A10
3IH6 A10
3IH7 A11
3IH8 B10
3IH9 A12
3II0 C10
3II1 C10
3II2 C10
3II3 D10
D
3II4 A12
3II5 G10
3II6 H10
3II7 H9
3II8 G4
3II9 G4
3IJ0 C4
3IJ1 C5
3IJ2 F10
3IJ3 F9
3IJ4 F10
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
F 7I20 B12
7I22-A A11
7I22-B C10
7I23-A H10
7I23-B F10
9I32 B5
9I33 B5
9I34 C5
9I35 C5
9I36 C5
9I37 D5
9I42 B3
G
9I43 E3
9I48 E3
9I49 A3
9I57 D12
9I58 E12
9I59 B10
FID2 G5
FID3 G5
FID4 H5
FID5 H5
II65 A10
II66 C12
H
II67 C10
II68 C12
II69 F10
II70 H10
II71 G2
II72 C2
II73 A9
I
070503