Panasonic SA-MAX500LMK Service Manual page 78

57 58 59
SCHEMATIC DIAGRAM - 9
B
MAIN(MICON) CIRCUIT
C2109
50V1
IC2004
C0ABBB000067
DUAL OP-AMP
R2110
C2111
SW_LV1
Q2004
B1GDCFJJ0047
BUFFER
TO MAIN(MICON)
CIRCUIT (4/10)
SW_MUTE
UP_DGND
Q2005
B1GDCFJJ0047
BUFFER
SW_LV2
P1
MI: MAIN(MICON): SCHEMATIC DIAGRAM - 5 ~ 14
DA: MAIN(D-AMP): SCHEMATIC DIAGRAM - 15 ~ 16
60 61 62
: +B SIGNAL LINE : CD AUDIO INPUT SIGNAL LINE
: -B SIGNAL LINE : AUX/TUNER/MUSIC PORT/MIC AUDIO INPUT SIGNAL LINE
R2089 C2113 R2124 C2122 R2147
10K 100P 22K 10 15K
R2111
47K
C2125 C2131 R2151 R2155 R2161
5 6 7 8
1 0.01 18K 27K 27K
V+
V- R2145
15K
4 3 2 1
C2112 R2131
10M 47P 1K
R2180
100K
R2119
0.01 12K
C2118 C2124 R2149
0.39 10 470
R2132
1K
Q2006
B1GDCFJJ0047
R2133 R2148
MUTING CONTROL
0 1K
B1ABCF000176
C2119
6.3V220
R2125
1K
63 64 65
: AUDIO OUTPUT SIGNAL LINE : FM SIGNAL LINE
: AM SIGNAL LINE : USB SIGNAL LINE
R2167 R2179
2.2K 12K
Q2009 Q2010
B1ABCF000176 B1ABCF000176
SW LEVEL CONTROL SW LEVEL CONTROL
GND
MUTE_F
F_HOP
DC_DET_AMP
MODE_DA
AGND
Q2008
MUTING
TO MAIN(MICON)
CIRCUIT (10/10)
66 67 68
CN2004
1 SUBWOOFER 1
R2168
2 SIGNAL AGND
0
3 SUBWOOFER 2
C2239 0.1
4 AGND
R2164 0
5 SUBWOOFER 3/4
R2433 0
6 AGND
7 SURROUND R
8 AGND
9 SURROUND L
10 AGND
11 NC
R2410
0
12 MUTE_S
13 MUTE_F
14 FHOP
15 FAN
16 DC_DET
17 MOD_DA
C2238
2.2
1/10 2/10 3/10 4/10 5/10
SA-MAX500
10/10
MAIN(MICON) CIRCUIT
6/10 7/10 8/10 9/10
69 70
A
B
C
17
L
TO
D-AMP CIRCUIT
(CN5050)
IN SCHEMATIC
DIAGRAM - 22
D
1
E
F
G
H