Main(Micon) Circuit - Panasonic SA-AKX74PH Service Manual

16.3. Main(MICON) Circuit

1 2 3
SCHEMATIC DIAGRAM - 5
A
B MAIN(MICON) CIRCUIT
B
LCH_IN
TUNER_L C2028 1
C
AUX_L C2032 1
R2154 R2152
15K 15K
MPORT_L
C2029 1
CD_L
R2012 680 C2020 10
DAGND
D
CD_R
R2103 680 C2021 10
MPORT_R C2031 1
AUX_R
C2033 1
TUNER_R
C2034 1
E
F
G
RCH_IN
MI: MAIN(MICON): SCHEMATIC DIAGRAM - 5 ~ 14
DA: MAIN(D-AMP): SCHEMATIC DIAGRAM - 15 ~ 16
H
4 5 6
: +B SIGNAL LINE : CD AUDIO INPUT SIGNAL LINE
: -B SIGNAL LINE : AUX/TUNER/MUSIC PORT/MIC AUDIO INPUT SIGNAL LINE
C2067
1
C2061 50V1
R2373
150K
C2192
1
C2043 C2049
1000P 100P 39 38 37 36 35 34 33 32 31 30 29 28 27
C2024
40 IN4B 26
1000P
41 NC 25
INT
42 IN5B 24
EXTSENSE
C2053
43 NC VOL2CAPB 23
1000P [39] NC [26] SURTC
44 IN6B OUTB 22
C2056 10V33
IC2000
45 VREF V+ 21
C2057 50V4.7
C1AB00003256
46 IN6DIFF SCL 20
47 IN6A ASP 19
SDA
NC [14] BPF2
C2054 48 GND 18
[1] NC [15] BPF3
1000P
49 NC OUTA 17
50 IN5A VOL2CAPA 16
51 NC 15
52 IN4A 14
C2026 C2046 C2050
1000P 1000P 100P
1 2 3 4 5 6 7 8 9 10 11 12 13
C2153
10
R2375 C2193
150K 1
R2061
6.8K
Q2041
B1ABCF000176
SWITCH
Q2037
B1ABCF000176
C2068
1
SWITCH
R2054
0
Q2042
B1ABCF000176
SWITCH
R2246
C2066
50V1
7 8 9
: AUDIO OUTPUT SIGNAL LINE : FM SIGNAL LINE
: AM SIGNAL LINE : USB SIGNAL LINE
Q2040
B1ABCF000176 R2372
SWITCH 1K
R2077
Q2001
1K
CLIP_ATTN
B1ABCF000231
SWITCH
R2064
15K
C2092
0.068
C2090 50V1
C2085 50V3.3 R2078 56K
50V3.3
C2089
LEFT-OUT
PW_+9V_1
ASP_CLK
C2242 C2093
0.1 16V1000
AGND
RIGHT-OUT
C2086 50V3.3
R2129
0
R2062 150K
PW_+9V
R2079 33
ASP_DATA
MIC_GND
C2084 C2088
0.082 0.082
R2063
15K
R2355
12K
C2087
4.7
R2356
1K
MIC
R2374
1K
R2377
1K
SYS3.3V
100
BASS_SHIFT
TO MAIN(MICON)
CIRCUIT (6/10)
87
10 11 12
C2047 R2039 R2044
50V1 22K 22K
R2024
3.9K
R2032
C2055 C2060
47K
47P 100P
R2050
22K
R2025 C2041 5 6 7 8
3.9K 6.3V100
V+
IC2002
C2241
0.1 C0ABBB000067
BUFFER AMP
V-
4 3 2 1
R2029
47K
R2053
22K
C2048
R2030
50V1 C2059 C2064
47K 47 100
R2043 R2045
22K 22K
R2294
6.8K
R2427
68K
R2295
6.8K R2031 R2426
47K 68K
C2037
0.047
1/10 2/10 3/10 4/10 5/10
6/10 7/10 8/10 9/10 10/10
SA-AKX74PH/PN MAIN(MICON) CIRCUIT
13 14
P1
2
1
TO MAIN(MICON)
CIRCUIT (2/10)