BOSE 251030 Schematic
8
7
6
5
4
3
2
1
6
5
LPF@170KHz
6
5
R
LPF@170KHzLPF@102KHz
RR
C11
100pF
R44
10.0K
-
+
-
+
6
5
U3B
U4B
-
U5B
+
4565A
C12
100pF
4565A
R2
N/A
R46
10.0K
4565A
7
AOUT1
7
AOUT2
7
AOUT1
AOUT2
D1
D2
D3
D4
CH_SEL
N1A
10K
81
72
N1B
10K
N2A
10K
81
72
N2B
10K
54
N1D 10K
54
N2D 10K
1
U31A
2
4
U31B
5
9
U31C
10
12
U31D
13
PCB1 PT195567AA
LABEL1 LASER LABEL
MISC. PARTS
74HC00
74HC00
74HC00
74HC00
N1C
10K
63
2
-
3
+
6
-
5
+
U1A
U1B
N2C
10K
1
TL074
63
7
TL074
PEAK DETECTORS
3
NABL1
6
NABL2
8
NABL3
11
NABL4
CH_SEL
ENABLE
NABL_BAR
R
R
+5D
+5D
CLOCK
DATA
PEAK1
31
D1
C1
13
12
10
16pF
-
+
D3
9
-
+
U1D
U1C
14
TL074
31
C2
16pF
8
TL074
4
U32B
5
1
U32A
2
4
U33B
5
1
U33A
2
+5D
74HC00
74HC00
74HC00
74HC00
2
-
3
+
6
-
5
+
6
3
6
3
D2
U2A
TL072
D4
U2B
TL072
12
13
10
9
12
13
10
9
U32D
U32C
U33D
U33C
31
1
31
7
74HC00
74HC00
74HC00
74HC00
C55
0.1uF
D
PEAK2
C56
0.1uF
D
11
8
NABL0
11
GCLK
8
GDATA
C6
47pF
-
U5A
+
4565A
4565A
R1
N/A
C7
47pF
4565A
S1V
R53
33.2K
1
R43
10.0K
R54
33.2K
1
R45
10.0K
1
GND1 GND2
N21-22
33K
AIN1 AIN9
AIN2 AIN10
AIN3 AIN11
AIN4 AIN12
AIN5 AIN13
AIN6 AIN14
AIN7 AIN15
D D
AIN8 AIN16
AIN1 AIN9
C C
AIN2 AIN10
AIN3 AIN11
AIN4 AIN12
AIN5 AIN13
AIN6 AIN14
AIN7 AIN15
AIN8 AIN16
B B
1 8
2
3
4
1 8
2
3
4
N25-26
33K
7
6
5
7
6
5
AUDIO
SIGNAL
7
6
5
7
6
5
GDATA GDATA
GCLK GCLK
NABL1 NABL2
18
2
3
4
18
2
3
4
GDATA GDATA
GCLK GCLK
NABL3 NABL4
2
3
4
6
7
8
10
11
29
28
27
25
24
23
21
20
17
16
14
13
18
2
3
4
6
7
8
10
11
29
28
27
25
24
23
21
20
17
16
14
13
18
U11
D
CK
ST
NJU7312M
U13
D
CK
ST
NJU7312M
GND
GND
5
9
12
26
GND1 GND1
22
19
30
+V
-V
+V
-V
+15
1
-15
15
D
5
9
12
26
GND2 GND2
22
19
30
+15
1
-15
15
D
N23-24
33K
1 8
2
3
4
1 8
2
3
4
N27-28
33K
7
6
5
7
6
5
U12
2
3
4
6
7
8
10
11
29
28
27
25
24
23
21
20
17
16
14
13
18
2
3
4
6
7
8
10
11
29
28
27
25
24
23
21
20
17
D
16
CK
14
ST
13
18
NJU7312M
U14
D
CK
ST
NJU7312M
7
6
5
7
6
5
18
2
3
4
18
2
3
4
GND
+V
-V
GND
5
9
12
26
22
19
30
+V
-V
+15
1
-15
15
D
5
9
12
26
22
19
30
+15
1
-15
15
D
S1I
2
-
U3A
3
+
R R
LPF@102KHz
SUMMING WITH
VARIABLE ATTENUATION
S2I S2V
2
-
U4A
3
+
R
SUMMING WITH
VARIABLE ATTENUATION
2
3
PATH
LOGIC
1
AOUT2
2
AOUT1 S2I
3
AIN16 S2V
4
AIN15
5
AIN14
6
AIN13 DATA
7
AIN12 CLOCK
8
AIN11 CH_SEL
9
AIN10 ENABLE
10
AIN9
11
AIN8 PEAK1
12
AIN7 D4
13
AIN6 PEAK2 D3
14
A A
AIN5 D2
15
AIN4 D1
16
AIN3
17
AIN2 GDATA
18
AIN1 ID GCLK
19
J1
CONNECTORS
R
D
U21 74HC165
10
SER
11
A
12
B
13
C
14
D
3
E
4
F
5
G
6
H
2
CLK
15
INH
1
SH/LD
CODE=048 HEX
DIGITAL ID
9
QH
7
QH
+5D
1
2
3
4
5
6
7
8
9
10
11
12
13
J2
+15
+5A
-5A
-15
+5D
D
GDATA
NABL_BAR
ID
8
7
6
G21B1 ID INFO:
NOLOAD=0.625V
LOADED=0.556V
CODE=072 HEX
+5A
R98
N/A
R99
N/A
R
ID
S1V
+5D
GAIN SELECT
5
R31 4.99K
R41 10.0K
R51 33.2K
R32 4.99K
R42 10.0K
R52 33.2K
1 8
2
3
4
N29
33.2K
7
6
5
NABL0
2
3
4
6
7
8
10
11
29
28
27
25
24
23
21
20
17
16
14
13
18
D
CK
ST
U15
NJU7312M
4
GND
5
S1I
+15
9
12
26
22
-15
U1 U2 U11 U12 U13 U14U3 U4
C53
C51
0.1uF
0.1uF
C54
C52
D
0.1uF
0.1uF
C57
0.1uF
C58
0.1uF
C59
0.1uF
C60
0.1uF
C61
0.1uF
C62
0.1uF
C63
0.1uF
C64
0.1uF
C65
0.1uF
C66
0.1uF
C67
0.1uF
C68
0.1uF
U15
C69
0.1uF
C70
0.1uF
U5
C71
0.1uF
C72
0.1uF
+5D
U31 U32
C73
0.1uF
D
C74
0.1uF
U33
C75
0.1uF
DECOUPLING
19
30
+V
-V
+15
1
-15
15
D
D
SW. GAIN
===== ======
NONE -0.0dB
33.2K -6.0dB
10.0K -12.6dB
4.99K -17.5dB
GAIN TABLE
3
R
BOSE ENTERO SE 16 AUDIO PROCESSOR
SERVICE MANUAL PART NUMBER 256689
TM
16 x 2 ROUTER MODULE
PART NUMBER 251030
SHEET 1 OF 1
2
1
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