Service manual

Schematic Diagrams
SRS AP8202Q B - 27
B.Schematic Diagrams
SRS AP8202Q
Z2746
T442 T443
Z2747 Z2748 Z2750
T445 T444
Z2749
T449 T448 T447 T446
Z2753 Z2754 Z2752 Z2751
AUDIO PROCESSOR PRE-AMP
HIGH BYPASS
LOW WOW
Z2721
PIN32FocusBYPB Low --->ByPass.
PIN31BASSBYPB OPEN --->TrueBass 6dB
PIN31BASSBYPB Low --->ByPass.
PIN32 FocusBYPB OPEN --->Focus .
AGND
AGN D
Z2740
C333
0. 1UF _06
C302
0.1UF_06
C284
1U F/10 V_06
R337
4.7K_06
C E
B
Q78
DT A114EUA
R344
2.2K_06
R331
15K_06
C299
0.1UF_06
C632
8200P_ 06
C613
0.1UF_06
R600
15K_06
R334
10K_06
R360
15K_0 6
L31
L_0805(159)
C296
1U F/10 V_06
LFOUT
1
FOUT
9
LWPI
25
RIN
38
CB3B
4
CB1
7
LWNI
26
RFOCUS
42
LFOCUS
2
CB3
3
CB2
5
CB2B
6
CB1B
8
MIXOUT
10
BP2
11
NC1
12
BP2B
13
BP1B
14
BP1
15
MODE
16
VREF
17
VREFB
18
LWO
20
TBGAIN
19
NC2
21
RWO
22
RWPI
23
RWNI
24
LOUT
27
ROUT
28
COMPI
29
VSA
30
BASSBYPB
31
FOCUSBYPB
32
GAININ
33
NC3
34
COMPC2
35
FWRIN
36
VDA
37
LIN
39
BUFR
40
BUFL
41
NC4
43
RFOUT
44
AP8202Q
U20
AP8202Q
C331
0.1 UF_ 06
R319
62K_0 6
C329
0.1 UF_ 06
R574
15K_06
C322 0.1UF_06
R589
10K_06
R576
3K_06
R591
2K_06
R325
4. 7K_06
C330
0.1 UF_ 06
R581
30K_1% _06
R585
10K_06
R298
30. 1K_06
C645
22P_0 402
C635
1000P_ 06
C256 10U/10V_0805
C646
10U /10V_0805
C328
0.1 UF_ 06
R603
30K_1% _06
R604
39K_06
C636
22P_0 402
C660
0.1UF_06
R592
8. 87K_06
C670
0.1 UF_ 06
R577
2. 2K_06
C627
10U /10V_0805
R605
62K_06
R563
0_06
C669
0. 1UF _06
R559
8.66K_06
R318
*0_06
R329
20K_06
G
DS
Q79
2N7002
C310
0.1 UF_ 06
C332
0.1 UF_ 06
R601
10K_06
R316
62K_0 6
R562
0_06
R602
22K_0 6
R588
30K_1% _06
R361
18K_0 6
R297
*0_06
R584
2.2K_06
R580
4.7K_06
R587
2K_06
C630
0. 018U_06
AGND
VREFB
VREFB
AUD_VDD
AUD_VDD
VREFB
FRONT-L17,25
PRE_ROUT 25
SRS_EN 22
FRONT-R17,25
PRE_LOUT 25
Z2702
Z2711
Z2724
Z2741
Z2722
Z2709
Z2714
Z2732
Z2734
Z2720
Z2725
Z2719
Z2705
Z2717
Z2712
Z2716
Z2723
Z2742
Z2708
Z2733
Z2715
Z2707
Z2743
Z2731
Z2718
Z2737
Z2704
Z2738
Z2726
Z2713
Z2710
Z2736
Z2706
Z2703
Z2735
Z2745
Z2730
Z2729
Z2739
Z2727
Z2701
C267
10U /10V_0805
AUD_VDD 17,25
7/12 C632 fix value to meet BOM
VREFB
Z2744
Sheet 27 of 46
SRS AP8202Q