Alto Dragonfly PM-12 Service Manual page 22

1 2
PH PWR +VCC
R1
R2
R11
C1
6K81 6K81
10N 2K49
R46 C11
TR1
4R7
1 47u/63V
HR
MIC 1 3
2
C21
4
330P
X1 R61
20K
JY-5042-030G
R47
R83
D
C12
4R7 470R
47u/63V
3c R
4d RN -VCC
C26 R93
2b TN
22u/35V 6K34
1a T
LINE IN1
5e S R94 TR16
C27
6K34 A1316
22u/35V
X2
C34
JY-6351G-02-250
1n
R101
1K50 R102
1K50
R12
MIC GAIN=0~-60dB
2K49
LINE IN GAIN=-15~-40dB
-VCC
PH PWR +VCC
R3 R4
C2 R13
6K81 6K81
2K49
10N
R48 C13
4R7 TR2
47u/63V
1
HR
MIC 2
3
2
C22
4
330P
R62
X3
20K
JY-5042-030G
R49 R84
C14
4R7
470R
47u/63V
C 3c R
4d
RN -VCC
C28 R95
2b TN
22u/35V 6K34
1a T
LINE IN2
5e S C29 R96 TR17
6K34 A1316
22u/35V
X4
C35
JY-6351G-02-250
1n
R103
1K50 R104
1K50
R14
2K49
-VCC
PH PWR +VCC
R5 R6
C3 R15
6K81
6K81
10N 2K49
R50 C15
TR3
4R7
1 47u/63V
HR
MIC 3 3
2
C23
4
330P
X5 R63
20K
JY-5042-030G
R51 R85
C16
4R7 470R
47u/63V
3c R
4d RN -VCC
C30 R97
LINE IN3
2b TN
B 22u/35V 6K34
1a T
5e R98 TR18
S C31
6K34 A1316
22u/35V
X6
C36
JY-6351G-02-250
1n
R105
1K50 R106
1K50
R16
2K49
-VCC
PH PWR +VCC
R7
R8
R17
C4
6K81 6K81
2K49
10N
R52 C17
TR4
4R7 47u/63V
1
HR
MIC 4 3
2
C24
4
330P
X7 R64
20K
JY-5042-030G
R53
R86
C18
4R7 470R
R 47u/63V
3c
4d RN -VCC
C32 R99
LINE IN4 2b
TN
22u/35V 6K34
1a T
A
5e S C33 R100 TR19
6K34 A1316
22u/35V
X8
C37
JY-6351G-02-250
1n
R107
1K50 R108
1K50
R18
2K49
-VCC
1 2
3 4
+VCC +VCC +VCC
R19
2K49
U2A
C5 R20 D1 R21
C49
4580M
C44 BAS316
10N 2K49 2K49 22P
1000u/10V
3
TR5
U1A R123
2
TR6
HR
4580M 5K11
HR
3
C50
1
22P
2
R143
R124
10K0
5K11
R87
C51 R125
470R
5K11
22P
VR1
O10K
U1B
C85
4580M
5
0.22u/50V
TR20
7
R54
A1316 R153
6
4R7 R144 1K3
10K0
6
R22
C86
C52
2K49 5
22P
0.22u/50V
R126
R23
-VCC
C38
5K11 R157
2K49
1n
62K
-VCC
+VCC +VCC +VCC
R24
2K49
U4A
C6 R25 D2 R26
C53
C45 4580M
10N 2K49 BAS316 2K49
22P
1000u/10V
3
TR7
U3A R127
2
TR8
HR 5K11
4580M
HR
3
C54
1
22P
2
R145
R128
10K0
5K11
R88
C55 R129
470R
22P 5K11
VR2
O10K
U3B
C87
4580M
5
0.22u/50V
TR21
7
R55 R154
A1316
6
1K3
4R7 R146
10K0
6
C88
R27 0.22u/50V
C56 5
2K49
22P
R130
R158
R28
C39 -VCC
5K11 62K
1n 2K49
-VCC
+VCC +VCC R29 +VCC
2K49
U6A
C7 R30 D3 R31 C57
C46 BAS316 4580M
10N 2K49 2K49
22P
1000u/10V
3
TR9
U5A R131
2
TR10
HR
4580M 5K11
HR
3
C58
1
22P
2
R147
R132
10K0
R89 5K11
C59 R133
470R
5K11
22P
VR3
O10K U5B
C89
4580M
5
0.22u/50V
TR22
7
R155
A1316 R56
6
1K3
4R7 R148
10K0
6
R32 C90
C60
5
2K49 0.22u/50V
22P
R134 R159
R33
C40 -VCC
5K11 62K
2K49
1n
-VCC
+VCC +VCC +VCC
R34
2K49
U8A
C8 R35 D4 R36
C61
4580M
10N 2K49 C47 BAS316 2K49
22P
1000u/10V
3
TR11
U7A R135
2
TR12
HR 5K11
4580M
HR
3
C62
1
22P
2
R149
R136
10K0
5K11
R90
C63 R137
470R
22P 5K11
VR4
O10K
U7B
C91
4580M
5
0.22u/50V
TR23
7
R57 R156
A1316
6
4R7 R150 1K3
10K0
6
C92
R37
0.22u/50V
C64 5
2K49
22P
R138 R160
R38 -VCC
C41
5K11 62K
2K49
1n
-VCC
3 4
5
C99
47u/25V
1
R65
LO CUT
20K
SW1A
PS-22E85L
PRECH1
PRECH1
INSERT1
R 3c
C93
SW1B
INS1 RN 4d
0.22u/50V
PS-22E85L
TN 2b
T 1a
R199
6K8 R82
5e
S
120R
X9
C100
JY-6351G-02-250
47u/25V
7
R66
U2B
20K
4580M
C101
47u/25V
1
R67
LO CUT
20K
SW2A
PS-22E85L
PRECH2
PRECH2
INSERT2
R 3c
C94
SW2B
INS2 RN 4d
0.22u/50V
PS-22E85L
2b
TN
1a
T
R200
6K8
R75
S 5e
120R
X10
C102
JY-6351G-02-250
47u/25V
7
R68
U4B
20K
4580M
C103
47u/25V
1
R69
LO CUT
20K
SW3A
PS-22E85L
PRECH3
PRECH3
INSERT3
R 3c
C95
SW3B
RN 4d
0.22u/50V INS3
PS-22E85L
TN 2b
T 1a
R201
6K8 R78
S 5e
120R
X11
C104
JY-6351G-02-250
47u/25V
7
R70
U6B
20K
4580M
C105
47u/25V
1
R71
LO CUT
20K
SW4A
PS-22E85L
PRECH4
PRECH4
INSERT4
R 3c
C96
SW4B
INS4 RN 4d
0.22u/50V
PS-22E85L
TN 2b
1a
T
R202
6K8
R80
S 5e
120R
X12
C106
JY-6351G-02-250
47u/25V
7
R72
U8B
20K
4580M
5
21
6 7
PM12PU1 (1/2)
C120 C121 C124 C125 C126 C127 C128 C129
100N 100N 100N 100N 100N 100N 100N 100N
+VCC
U1C U2C U3C U4C
4580M 4580M 4580M 4580M
-VCC
C122 C123 C132 C133 C134 C135 C136 C137
100N 100N 100N 100N 100N 100N 100N 100N
U1 U2 U3 U4 U5 U6 U7 U8
PRECH1
+VCC
-VCC
PRECH2
PRECH3
+VCC
-VCC
PRECH4
Titel
INPUT STAGE ( CH1-CH4)
PCB# PM12PU1.PCB
Size Model No:
A2
Date: 6-Jan-2004
File: PM12PU1.Sch
6 7
8
D
U5C U6C U7C U8C
4580M 4580M 4580M 4580M
(TO PM12MN1)
CN1
2.5-12P
12
GND
11
10
GND
9
+VCC
8
GND
7
GND
6
-VCC C
5
GND
4
3
GND
2
1
(TO PM12MN1)
CN2
2.5-12P
12
GND
11
10
GND
9
+VCC
8
GND
7
GND
6
-VCC
5
GND
4
3
GND
2
1
B
CH4-8 & DIRECT OUTPUT
PM12PU1.S01
A
Revision
ALTO PM12
VER040101
Sheet 1 of 2
Drawn By: BAO.
8