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Schematic Diagrams
B - 24 Pre Amp AP8202
B.Schematic Diagrams
Pre Amp AP8202
Sheet 23 of 40
Pre Amp AP8202
VR4 6.8K
C287 10UF/6.3V
VR5 6.8K
C642 0.1UF
C654
0.082UF
R213
10K
C650 0.1UF
SRS_CNTL#25
C653
22PF
AC97_OUT_R20
C288
0.1UF
R217 2.2K
C285
4.7UF/10V
WOWO_VDD
R497
30.1K
R214
15K
FRONT-L22
R209
8.87K
TR4 18K
C644 0.1UF
C641
0.1UF
C646 0.1UF
Q8
*2N7002
G
DS
R218
10K
R591 10K
R210
51K
VR2 5.1K
VR3
5.1K
R208 *0
C643
0.1UF
C655
0.001UF
VR6 62K
AP8202Q
U37
AP8202Q
43
44
39
40
41
31
32
33
34
26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
27
28
29
30
35
36
37
38
42
25
NC4
RFOUT
LIN
BUFR
BUFL
BASSBYPB
FOCUSBYPB
GAININ
NC3
LWNI
LFOUT
LFOCUS
CB3
CB3B
CB2
CB2B
CB1
CB1B
FOUT
MIXOUT
BP2
NC1
BP2B
BP1B
BP1
MODE
VREF
VREFB
TBGAIN
LWO
NC2
RWO
RWPI
RWNI
LOUT
ROUT
COMPI
GND
COMPC2
FWRIN
VCC
RIN
RFOCUS
LWPI
TR5 15K
C278 4.7UF/10VTR1 22K
C279
0.018UF
R492 10K
TR9
30K
R493 10K
R494
10K
R212
20K
FRONT-R22
TR8
39K
C283 10UF/6.3V
WOWO_VDD
PRE_LOUT 22
R207
51K
PRE_ROUT 22
C282
0.1UF
TR6 2.2K
C652
10UF/6.3V
VR1
62K
R211 *0
Q7
*DTA114EUA
CE
B
C645
0.1UF
C280 22PF
HIGH BYPASS
LOW SRS
C281
10UF/6.3V
R592 10K
+5VCDROM
WOWO_VDD
R499
8.66K
R498
15K
C289
0.1UF
R496 0
R206
10K
AC97_OUT_L20
TR3 3K
C284 10UF/6.3V
C286 10UF/6.3V
TR2 4.7K
C651 0.1UFR216 2.2K
L75
HCB3216K-800T30
R215
15K
R495 0
TR7
62K