Main Circuit - Panasonic SA-AKX72PH Service Manual

17.3. Main Circuit

1 2 3
SCHEMATIC DIAGRAM - 3
A
B MAIN CIRCUIT
B
C
TUNER_L
CD_L
R2013
R2015
1.8K
4.7K
AUX_L
PA_IN_L
D
JUPITER_L
R2010 3.3K
PA_IN_GND
R2343 0
JUPITER_R R2009 3.3K
R2011 R2012 R2016
4.7K 4.7K 4.7K
PA_IN_R
A_D_GND
E
AUX_R
TUNER_R
CD_R
R2014 1.8K
F
REC_R_USB
R2020 0
REC_L_USB R2021 0
G
H
4 5 6
: +B SIGNAL LINE : -B SIGNAL LINE : CD/DVD AUDIO INPUT SIGNAL LINE
C2061
50V1
C2028 1
C2030 4.7
C2032
1
39 38 37 36 35 34 33
C2043 C2045 C2049
1000P 1000P 100P
40 IN4B
C2029
41 NC
1
42 IN5B
C2053
43
1000P NC
C2024 10 [39] NC
44
IN6B
C2056 10V33
45 VREF
IC2000
C2057 50V4.7
46
IN6DIFF
C1AB00003256
C2025 10
47
IN6A
ASP
C2026 C2036 48 NC
C2054
[1] NC
1000P 1000P
1000P
49 NC
50 IN5A
C2031
51 NC
1
52 IN4A
C2044 C2046 C2050
1000P 1000P 100P
C2193
1 2 3 4 5 6 7
1
C2033 1
C2034 1
C2035 4.7
C2066
50V1
R2375
150K
C2068
1
Q2041
R2054
B1ABCF000176
0
SWITCH
C2039
16V10
C2038
R2374
16V10
1K
TO MAIN
CIRCUIT (5/8)
7 8 9
: AUX/MIC/TUNER/MUSIC PORT AUDIO INPUT SIGNAL LINE
R2372
1K
Q2040
B1ABCF000176
C2082
SWITCH
3300P
C2192 R2373
1 150K
R2077
Q2001
1K
B1ABCF000176
SWITCH
R2064
15K
32 31 30 29 28 27
C2092
0.068
26
C2090 50V1
25
INT
C2085 50V3.3 R2078 56K
EXTSENSE 24
C2089 50V3.3
VOL2CAPB 23
[26] SURTC
22
OUTB
R2079 33
V+ 21
SCL 20
C2242 C2093
0.1 16V1000
SDA 19
[14] BPF2
GND 18
[15] BPF3
17
OUTA
C2086 50V3.3
VOL2CAPA 16
15
14
R2062
8 9 10 11 12 13 150K
C2153 C2084 C2088
10 0.082 0.082
R2060
6.8K
R2061
6.8K
R2063
C2083
15K
0.022
R2355 C2087
12K 4.7
R2356
1K
Q2037
B1ABCF000176
SWITCH
Q2042
B1ABCF000176
SWITCH
99
10 11 12
: AUDIO OUTPUT SIGNAL LINE
CLIP_ATTN
ASP_CLK
ASP_DATA
LEFT-OUT
+9V R2001
8.2K
AUX_L
R2005
10K
RIGHT-OUT
R2006
10K
AUX_R
R2002
C2000
8.2K
0.01
R2377
1K
SYS3.3V
R2246
100
BASS_SHIFT
AGND
1/8 2/8 3/8 4/8
5/8 6/8 7/8 8/8
SA-AKX72PH/PN MAIN
13 14
1
2
TO MAIN
CIRCUIT (2/8)
3
JK2000
1
[LCH]
2
AUX IN
[RCH]
3
4
4
5
P1
CIRCUIT