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SA-PT465EE
15.10. Mic Circuit
1
2
3
SCHEMATIC DIAGRAM - 20
A
L
MIC CIRCUIT
B
JK7002
C
1
MIC 2
4
2
J0JBC0000019
D
Q7008
J0JBC0000019
B1GDCFGA0018
Q7006
MUTING CONTROL
B1ABEB000002
MUTING
R7022
1.8K
JK7001
1
J0JBC0000019
MIC 1
4
E
2
J0JBC0000019
Q7106
B1ABEB000002
Q7108
R7122
MUTING
1.8K
B1GDCFGA0018
MUTING CONTROL
F
G
H
1
2
3
4
5
6
: +B SIGNAL LINE
: -B SIGNAL LINE
: MIC SIGNAL LINE
L7003
J0JBC0000019
C7003
R7001
R7003
100
0
1
L7002
D7001
B0ACCK000005
J0JBC0000030
R7016
1K
L7001
L7101
R7021
10K
Q7007
B1GBCFJJ0051
MIC IN DETECT
D7002
B0ACCK000005
L7103
R7017
68
W7004
0
R7116
100
L7303
D7106
B0ACCK000005
C7101
R7100
1
15K
Q7107
B1GBCFJJ0051
MIC IN DETECT
CHASSIS
Q7100
B1GBCFJJ0051
MUTING
4
5
6
7
8
9
R7015
C7015
1K
1
R7009
56K
C7010
C7009
47P
150P
4
3
2
1
V-
IC7000
C1AB00002773
V+
MIC AMP
5
6
7
8
C7005
C7006
47P
100P
R7010
100
R7005
R7006
1K
56K
Q7001
B1GBCFJJ0051
Q7002
SWITCH
B1GBCFJJ0051
SWITCH
D7003
D7004
B0ACCK000005
B0ACCK000005
W7012
R7019
0
4.7K
IC7100
C0ABBB000230
ECHO PROCESSOR
W7005
L7004
C7111
0
J0JBC0000019
16V47
R7101
10K
16
LPFIN
VCC
1
C7103
560P
R7102
10K
15
LPF1OUT
VREF
2
C7112
C7110
W7007
16V47
0.1
R7104
15K
14
LPF2OUT
AGND
3
C7108
560P
R7103
10K
C7020
13
LPF2IN
DGND
4
0.1
R7105
10K
12
OP2OUT
CLK_O
5
C7109
0.082
11
OP2IN
VCO
6
10
OP1IN
CC1
7
C7104
0.082
9
OP1OUT
CCO
8
C7113
1
R7109
10K
Q7101
Q7102
B1GBCFJJ0051
B1GBCFJJ0051
SWITCH
SWITCH
7
8
9
88
10
11
12
C7014
W7013
W7015
R7011
0.47
0
0
0
C7018
C7019
0.1
0.1
C7012
R7008
1
100
12
ASP_MICIN
W7016
11
+7V
0
Q7003
10
AGND
B1GBCFJJ0051
9
-7V
SWITCH
W7003
0
8
MIC_SW
W7014
0
7
MIC LVL 1
6
MIC LVL 2
5
ECHO LVL 1
4
ECHO LVL 2
3
ECHO MUTE
2
MICVOLUP
1
MICVOLDOWN
D7005
B0ACCK000005
R7107
1K
D7100
B0BC5R000009
0
10
11
12
13
14
A
B
C
CN7000
1
B
TO
MAIN CIRCUIT
(CN2005*)
IN SCHEMATIC
DIAGRAM - 7
D
12
E
F
G
SA-PT465EE
MIC CIRCUIT
H
13
14
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