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Circuit Diagrams and PWB Layouts
Multi-Channel Sound Module: Sofac Center and Subwoofer
1
2
Sofac Center & Subwoofer
2635
100n
A
7635-A
LM833D
1
3V5
N17-A4
B
N13
0.5V / div DC
0.2ms / div
N13
N4-D8
2602
Center = Vout_C
3V5
3V5
7600
2603
C
N7-A7
10u
TDA7438
6
3V5
CO
MUXOL
N4-A9
10u
3 LI1
Left_out =
2604
Vout_L
4
LI2
VOL
RES
3V5
5 LI3
N14
INPUT MUX
2605
N4-D9
N7-D7
3V5
2 RI1
+ GAIN
2606
3V5
Subwoofer =
10u
SWO_1
1
RI2
Vout_SW
VOL
10u
28 RI3
N7-D10
2607
D
SWO_2
3V5
MUXOR
8
10u
3V5
N14
0.5V / div DC
0.2ms / div
E
F
1
2
MG3.2E
7.
3
4
12VP_IN
N17-B4
+12V
2752
2753
3
3V5
8
10n
10n
3752
3753
2
3V5
4
8K2
8K2
-12V
12VN_IN
3755
100R
3756
270R
3760
2573
4K7
3613
10K
10u
VSOF
N17-E3
2600
N17-A4
5V2
7V0
100n
7
18
17
16
14
15
24
VS
LO
27
2V8
TREB
MIDD
BASS
ATT
SCL
21
5V2
SDA
22
5V2
I 2 C BUS DECODER+ LATCHES
2601
DGND
20
0V
TREB
MIDD
BASS
ATT
100n
RO
26
2V8
3601
10R
CREF
AGND
9
19
10
11
12
13
23
25
3V5
3V5
3V5
2624
10u
2574
3620
10K
10u
3
4
111
5
6
7
N17-B4
12VP_IN
N15
2625
100n
+12V
0.2V / div DC
2623
7635-B
0.2ms / div
0V
5
8
LM833D
N15
3582
10u
7
0V
1K2
0V
6
4
-12V
N17-A4
12VN_IN
3621
10K
2627
3584
1K8
33p
N16
N12-E3
VL_SW
N16
0.2V / div DC
0.2ms / div
N10-C8
SCL_SOFAC_MIDDLE
2637
2638
SDA
680n
680n
N16-A1
N17-B4
3649
12VP_IN1
12V
680R
7625-A
0V
3
8
LM833D
1
0V
N17-B4
0V
2
-12V
12VP_IN
4
2626
2639
100n
100n
12VN_IN1
N17-A4
3625
12V
10K
2628
7611
BC847B
33p
0V
5
6
7
8
9
VLL_C
N11-E1
4627
N17-B4
RES
12VP_IN1
N17
2636
100n
0.2V / div DC
+12V
0.2ms / div
7625-B
0V
5
8
LM833D
N17
N11-E1
7
0V
VL_SW_DBE
0V
6
4
-12V
N17-A4
12VN_IN1
3704
10K
2643
33p
6638
3701
0V
100K
BAS216
CL 96532042_020.eps
211201
8
9
2573 B4
4540 D1
2574 E4
4541 C1
2600 C4
4627 C8
2601 D4
6637 F7
2602 C1
6638 E8
2603 C1
7600 C1
A
2604 C1
7611 E7
2605 D1
7625-A D5
2606 D1
7625-B C8
2607 D1
7635-A A2
2609 C3
7635-B A6
2613 C3
2620 D3
2622 D4
2623 A5
B
2624 D4
2625 A6
2626 E5
2627 B6
2628 E5
2635 A2
2636 C8
2637 C6
2638 C7
2639 E7
C
2641 D7
2643 D8
2752 A3
2753 A4
2755 B3
2791 F8
3582 A7
3584 B7
3601 D5
D
3603 C4
3613 B4
3617 A5
3619 B6
3620 E4
3621 B6
3623 E5
3624 E5
3625 E6
E
3638 C6
3639 D6
3640 E7
3649 D7
3651 D7
3701 E8
3702 D8
3703 F9
3704 D8
3752 A3
F
3753 A4
3754 A3
3755 B2
3756 B3
3757 B3
3760 B3
3791 E9
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