137
17.8. Mic Circuit
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
D
E
F
H
G
C
K
MIC CIRCUIT
SCHEMATIC DIAGRAM - 17
SA-PT875GA/GC/GS MIC
CIRCUIT
B
TO
MAIN CIRCUIT
(CN2005)
IN SCHEMATIC
DIAGRAM - 7
: MIC AUDIO INPUT SIGNAL LINE
: +B SIGNAL LINE
: -B SIGNAL LINE
C7013
0.01
7
8
3
2
1
MIC 2
MIC 1
L7004
C7118
0.01
0.01
L7001
J0JBC0000030
J0JBC0000030
J0JBC0000019
L7002
680
R7001
C7114
0.01
C7119
7
8
3
2
1
JK7001
JK7002
L7006
680
R7116
L7005
J0JBC0000019
J0JBC0000019
J0JBC0000030
L7007
CHASSIS
C7011
0.1
47P
C7010
150P
C7009
1K
R7015
OP-AMP (MIC)
SWITCH
SWITCH
SWITCH
1
C7015
100K
R7009
6
7
5
2
4
3
8
1
IC7000
C0ABBB000189
39
R7018
100
R7008
0.1
0.1
C7018
C7019
1
C7012
R7012
150
Q7003
Q7002
R7013
47
0.47
C7014
0
R7011
R7109
10K
R7110
6.8K
C7116
5600P
B1GBCFJJ0051
Q7102
C7111
16V47
16V47
R7106
12K
C7106
C7110
C7020
0.1
C7105
0.1
0.1
7
5
6
1
2
4
3
10
12
14
15
16
13
11
8
9
IC7100
C1AB00002773
4.7K
R7019
MA2J11100L
MA2J11100L
MA2J11100L
D7003
D7004
D7005
C7112
0.1
R7107
68
D7100
MAZ80510ML
100
R7010
B1GBCFJJ0051
B1GBCFJJ0051
B1GBCFJJ0051
Q7001
0.1
C7007
C7107
3300P
12K
R7117
15K
R7100
1
C7117
0.1
C7115
R7108
4.7K
B1GBCFJJ0051
Q7100
8.2K
R7118
C7102
3900P
C7104
C7103
560P
560P
0.082
0.082
R7103
R7105
10K
C7108
C7109
R7102
R7104
R7101
10K
10K
15K
10K
B1GBCFJJ0051
Q7101
R7112
15K
C7113
1
MUTING
SWITCH
SWITCH
R7006
82K
R7005
1K
C7006
C7005
47P
100P
7
9
10
8
4
5
1
3
2
6
H7000*
R7114
10K
1
C7101
R7113
10K
0
R7003
1
C7003
C7004
0.015
R7004
680
+7V
-7V
AGND
V+
V-
MIC_IN
OP2IN
VCO
DGND
AGND
VREF
CLK_O
OP2OUT
OP1OUT
CCO
CCI
LPF1OUT
OP1IN
LPF2IN
LPF2OUT
VCC
LPFIN
ECHO PROCESSOR
MIC_SW
ECHO MUTE
MIC LVL 2
MIC LVL 1
ECHO LVL 1
ECHO LVL 2
J0JBC0000019
L7008
K7000
0
100P
C7030
100P
C7031
100P
C7032
100P
C7029
100P
C7027
100P
C7023
100P
C7022
C7028
100P
100P
C7021
100P
C7026
100P
C7025
100P
C7024
Summary of Contents for SA-PT875GA
Page 5: ...5 1 3 1 Caution for fuse replacement ...
Page 15: ...15 Refer to their respective original service manuals for 1 ...
Page 16: ...16 ...
Page 48: ...48 Fig 4 Fan Connector FAN CONNECTOR CN5501 ...
Page 55: ...55 ...
Page 57: ...57 9 2 Main Components and P C B Locations ...
Page 120: ...120 ...