Alto L-6, Руководство по обслуживанию, Страница: 6 / 28

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L6G.Sch
Titel
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File
Date
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Sheet
Revision Model No
8-Sep-2003
KEVIN LIN.
INPUT STAGE
4 1 of
ALTO L-6 VER030709 A2(C)
R1
4R7
R3
4R7
C16
1n
C15
1n
C19
1000u/10V
R4
4R7
VR12
O10K
R15
1K50
R35
2K49
3
2
1
U2A
4580M
R58
5K11
C25
22P
C52
47u/25V
R20
20K
2
1
3
4
X1
JY-5042-030G
3c
5e
1a
4d
2b
X3
JY-6351G-02-250
T
R
S
RN
TN
C5
330P
C11
10n
R48
470R
R34
2K49
C8
47u/63V
C7
47u/63V
R12
4K02
R11
4K02
C1
22u/35V
C2
22u/35V
R9
6K81
R7
6K81
LINE IN1
MIC 1
PH PWR
TR5
HR
TR1
A1316
R16
1K50
-VCC
VCC
R38
2K49
R37
2K49
C13
10n
R49
470R
TR7
HR
TR2
A1316
-VCC
VCC
3
2
1
U1A
4580M
5
6
7
U1B
4580M
C21
22P
C22
22P
R55
5K11
R54
5K11
R43
2K49
-VCC
R42
2K49
TR8
HR
VCC R40
2K49
D6
BAS316
VCC
R19
20K
-VCC
R62
10K0
R63
10K0
R56
5K11
C23
22P
MIC GAIN=0~-60dB
LINE IN GAIN=+15~-45dB
3c
5e
1a
4d
2b
X5
JY-6351G-02-250
T
R
S
RN
TN
LINE IN 3/4
3c
5e
1a
4d
2b
X6
JY-6351G-02-250
T
R
S
RN
TN
LEFT(MONO)
RIGHT
3
2
1
U7A
4580M
R116
10K0
C27
22P
C61
47u/25V
R115
10K0
C26
22P
R113
10K0
C169
100P
R114
10K0
C170
100P
5
6
7
U7B
4580M
R125
10K0
C33
22P
C72
47u/25V
R124
10K0
C31
22P
R122
10K0
C171
100P
R123
10K0
C172
100P
R23
20K
R26
20K
PRE-CH5
PRE-CH6
3c
5e
1a
4d
2b
X7
JY-6351G-02-250
T
S
RN
TN
LINE IN 5/6
3c
5e
1a
4d
2b
X8
JY-6351G-02-250
T
R
S
RN
TN
LEFT(MONO)
RIGHT
3
2
1
U10A
4580M
R136
10K0
C32
22P
C81
47u/25V
R133
10K0
C34
22P
R121
10K0
C173
100P
R130
10K0
C174
100P
5
6
7
U10B
4580M
R135
10K0
C36
22P
C82
47u/25V
R134
10K0
C35
22P
R131
10K0
C175
100P
R132
10K0
C176
100P
R27
20K
R28
20K
L6G(1/4)
PCB# L6MAIN.PCB
PRE-CH7
PRE-CH8
EQ HI
12KHZ
C121
18n(M)
VR15
B50K
R78
6K8
VR14
B50K R77
6K8
LO
R112
10K0
C56
47u/25V
5
6
7
U3B
4580M
R186
1M
C149
22P
R106
1K1
VR17
B50K
R69
1K3
MID
R94
910R
C127
12n(M)
R95
910R
C109
33n(M)
C110
33n(M)
C139
12n(M)
C134
18n(M)
C57
47u/25V
VR25
W50K
AUX-1
R170
68K
R172
4K7
C145
2.2u/50V
R79
6K8
TR12
BR
TR11
BR
R195
1K50
VCC
LD1
RED
R193
30K
3
2
1
U3A
4580M
VR24
W50K
PEAK
C58
47u/25V
R199
3K9
R209
36K
C151
22P
C60
47u/25V
R220
5K1
LEVEL
AUX-POST
R223
5K1
R221
5K1
LEFT-BUS
RIGHT-BUS
PAN
80HZ
2.5K
J1
POST
(PRE)
VR18
B50K
R173
4K7
R174
4K7
EQ HI
12KHZ
C123
18n(M)
VR5A
B50K
R86
6K8
VR7A
B50K R84
6K8
LO
R126
10K0
C62
47u/25V
3
2
1
U8A
4580M
R187
1M
C153
22P
R107
1K1
VR6A
B50K
R70
1K3
MID
R96
910R
C128
12n(M)
R97
910R
C114
33n(M)
C115
33n(M)
C140
12n(M)
C135
18n(M)
C64
47u/25V
VR28
W50K
AUX-1
R249
47K
R179
4K7
C147
2.2u/50V
R88
6K8
TR16
BR
TR15
BR
R197
1K50
VCC
LD3
RED
R242
22K
3
2
1
U9A
4580M
VR1A
W50K
PEAK
C65
47u/25V
R201
3K9
R211
36K
C154
22P
C68
47u/25V
R227
5K1
LEVEL
AUX-POST
R224
5K1
R228
5K1
LEFT-BUS
RIGHT-BUS
BAL
PGND
80HZ
2.5K
EQ HI
12KHZ
C124
18n(M)
VR5B
B50K
R87
6K8
VR7B
B50K
R85
6K8
LO
R127
10K0
C73
47u/25V
5
6
7
U8B
4580M
R189
1M
C156
22P
R109
1K1
VR6B
B50K
R73
1K3
MID
R100
910R
C130
12n(M)
R101
910R
C113
33n(M)
C116
33n(M)
C142
12n(M)
C136
18n(M)
C74
47u/25V
80HZ
2.5K
R117
10K0
R128
10K0
R248
47K
R243
22K
5
6
7
U9B
4580M
VR1B
W50K
C66
47u/25V
R202
3K9
R210
36K
PGND
C155
22P
C77
47u/25V
LEVEL
R119
10K0
R118
10K0
J3
POST
(PRE)
PRE-CH7
PRE-CH8
VR21
B50K
R176
4K7
R180
4K7
EQ HI
C125
18n(M)
VR8A
B50K
R91
6K8
VR10A
B50K
R89
6K8
LO
R138
10K0
C75
47u/25V
3
2
1
U11A
4580M
R190
1M
C157
22P
R110
1K1
VR9A
B50K
R74
1K3
MID
R102
910R
C131
12n(M)
R103
910R
C117
33n(M)
C120
33n(M)
C143
12n(M)
C137
18n(M)
C76
47u/25V
VR29
W50K
AUX-1
R251
47K
R182
4K7
C148
2.2u/50V
R93
6K8
TR18
BR
TR17
BR
R198
1K50
VCC
LD4
RED
R244
22K
3
2
1
U12A
4580M
VR2A
W50K
PEAK
C78
47u/25V
R204
3K9
R213
36K
C158
22P
C80
47u/25V
R230
5K1
LEVEL
AUX-POST
R229
5K1
R231
5K1
LEFT-BUS
RIGHT-BUS
BAL
PGND
80HZ
2.5K
EQ HI
C126
18n(M)
VR8B
B50K
R92
6K8
VR10B
B50K R90
6K8
LO
R137
10K0
C83
47u/25V
5
6
7
U11B
4580M
R191
1M
C160
22P
R111
1K1
VR9B
B50K
R75
1K3
MID
R104
910R
C132
12n(M)
R105
910R
C118
33n(M)
C119
33n(M)
C144
12n(M)
C138
18n(M)
C84
47u/25V
80HZ
2.5K
R139
10K0
R140
10K0
R250
47K
R245
22K
5
6
7
U12B
4580M
VR2B
W50K
C79
47u/25V
R203
3K9
R214
36K
C159
22P
C85
47u/25V
LEVEL
R129
10K0
R141
10K0
J4
POST
(PRE)
PRE-CH5
PRE-CH6
VR23
B50K
R181
4K7
R183
4K7
5
6
7
U2B
4580M
R61
5K11
C30
22P
C53
47u/25V
R24
20K
2
1
3
4
X2
JY-5042-030G
3c
5e
1a
4d
2b
X4
JY-6351G-02-250
T
R
S
RN
TN
LINE IN2
MIC 2
R2
4R7
R5
4R7
C18
1n
C17
1n
C20
1000u/10V
R6
4R7
VR13
O10K
R17
1K50
R36
2K49
C6
330P
C12
10n
R50
470R
R45
2K49
C9
47u/63V
C10
47u/63V
R14
4K02
R13
4K02
C3
22u/35V
C4
22u/35V
R10
6K81
R8
6K81
PH PWR
TR6
HR
TR3
A1316
R18
1K50
-VCC
VCC
R39
2K49
R46
2K49
C14
10n
R51
470R
TR10
HR
TR4
A1316
-VCC
VR20
B50K
VCC
R108
1K1
R72
1K3
MID
R98
910R
C129
12n(M)
C150
22P
R188
1M
R99
910R
5
6
7
U6B
4580M
C111
33n(M)
C69
47u/25V
C112
33n(M)
R120
10K0
LO
3
2
1
U4A
4580M
R81
6K8
C141
12n(M)
5
6
7
U4B
4580M
C28
22P
VR19
B50K
C133
18n(M)
C29
22P
R82
6K8
R60
5K11
VR16
B50K
R59
5K11
C122
18n(M)
R47
2K49
12KHZ
-VCC
EQ HI
C70
47u/25V
R44
2K49
VR27
W50K
TR9
HR
VCC
AUX-1
PGND
R171
68K
R41
2K49
R177
4K7
D7
BAS316
PAN
C146
2.2u/50V
RIGHT-BUS
VCC
R83
6K8
LEFT-BUS
TR14
BR
R226
5K1
TR13
BR
R222
5K1
R178
4K7
R196
1K50
C24
22P
R175
4K7
R57
5K11
VCC
R64
10K0
AUX-POST
VR22
B50K
R65
10K0
LD2
RED
R22
20K
LEVEL
R194
30K
-VCC
80HZ
3
2
1
U6A
4580M
R225
5K1
2.5K
C71
47u/25V VR26
W50K
J2
POST
PEAK
C152
22P
(SOLTON 1K2)
用
(PRE)
C59
47u/25V
R212
36K
R200
3K9
L6G.S01 L6G.S02 L6G.S03
8
4
U2C
4580M
C185
100n C184
100n
C186
100n C183
100n
VCC
-VCC
C187
100n
C188
100n
8
4
U4C
4580M
8
4
U6C
4580M
8
4
U8C
4580M
C190
100n
C191
100n
C196
100n
C197
100n
C199
100n
C200
100n
C201
100n
C202
100n
8
4
U1C
4580M
8
4
U3C
4580M
8
4
U7C
4580M
C179
100n
C189
100n
C180
100n
C192
100n
C181
100n
C195
100n
C182
100n
C198
100n
8
4
U11C
4580M
8
4
U12C
4580M
8
4
U10C
4580M
8
4
U9C
4580M
VCC
-VCC