Schematic Diagram - Marantz SR-12S1 Service Manual

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5. SCHEMATIC DIAGRAM

P114
From JE08(PC04)
EH
J101
FL
1
1
1
1
S-GND
2
2
3
1
FR
3
4
1
SBL
4
S-GND
5
5
1
SBR
6
6
1
R401
(RME)X401
33K
C402
330p
10p
C411
R420
R419
330K
330K
C407
C406
220/50V
220/50V
From W401(P414)
All manuals and user guides at all-guides.com
36.9
R113
R117
470
150
36.0
Q107
D101
+18V
3
2SA970
R124
100
2
35.0
C148
Q109
2SA1145
3
1
100/25V
2
R111
34.5
15K
1
1
18
1.8
2
Q105
C101
0.6
R102
10/50V
Q103
2SC2240
1K
8
5
R110
2SA1048
3
3
0
100
7
0
2
OP-AMP2/2
0.1
0
0
C104
Q101
1
1200p
6
R115
Q111
2068
1.1
33
2SC3419
C
1
-0.6
2
B
Q104
2SC2458
R116
E
3
1
33
-1.8
2
2.2K
-0.1
3
Q106
R123
3
2SA970
2
R149
-0.6
10
-1.8
1
1
Q110
R112
2
2SC2705
15K
-34.5
1
R125
Q108
3
100
2
-35.0
2SC2240
-1.8
3
D102
-36.0
-18V
R114
470
R118
150
-36.9
C103
R104
R105
100/50V
47
33K
R106
R107
R108
R109
330
330
330
330
36.9
R217
R213
220/100V
470
150
C206
36.0
Q207
D201
+18V
3
2SA970
R224
100
2
35.0
Q209
2SA1145
3
1
2
R211
34.5
15K
1
1
1.8
2
C201
0.6
Q205
R202
Q101
2SC2240
10/50V
Q203
1K
0
3
2068
2SA1048
R210
3
100
3
1
0
2
OP-AMP1/2
0.1
C204
0
0
1200p
1
2
R215
Q211
4
1.1
33
2SC3419
C
1
-18
-0.6
2
B
Q204
2SC2458
R216
E
3
1
33
-1.8
2
2.2K
-0.1
Q206
3
R223
3
2SA970
2
-0.6
-1.8
1
1
Q210
R212
2
WE03-O
15K
2SC2705
-34.5
1
R225
Q208
3
100
2
2SC2240
-35.0
-1.8
3
-18V
D202
-36.0
R214
470
R218
150
-36.9
10 1/4w
C203
R204
R205
100/25V
47
33K
R207
R208
R209
R206
330
330
330
330
36.9
R317
R313
470
150
36.0
Q307
D301
+18V
3
2SA970
R324
100
WE03-Y
2
35.0
Q309
2SA1145
3
1
100/25V
2
C348
R311
34.5
15K
1
18
1
1.8
2
Q305
C301
0.6
R302
10/35V
Q303
2SC2240
1K
0
5
8
2SA1048
R310
3
100
3
7
0
2
OP-AMP2/2
0.1
C304
0
0
1200p
Q301
1
6
R315
Q311
2068
1.1
33
2SC3419
C
1
-0.6
2
B
Q304
2SC2458
R316
E
3
1
33
-1.8
2
2.2K
-0.1
Q306
R323
3
3
2SA970
2
-0.6
-1.8
1
1
R312
Q310
15K
-34.5
2
2SC2705
1
R325
Q308
3
100
2
2SC2240
-18V
-35.0
-1.8
3
D302
-36.0
R314
470
R318
150
-36.9
C303
R304
R305
100/25V
47
33K
R306
R307
R308
R309
330
330
330
330
(RMA)X101 ,X201 ,X301
11
PP94
R142
10 1/4w
37.0
41.4
Q114
1
2SC3421
2
1.8
1
Q112
3
2
2SC4883
R127
1.2
Q116
2SC2922
1
R139
47
0.6
3
22K
2
R129
0.6
Q118
(RHP)XP91
10
2SC2240
1
R133
0
3
1K
2
0
3
R132
0
0.1x2
5w
R126
1K
2
1
R134
1K
0
P124
R130
3
10
Q117
-0.5
2
2SA1216
Q113
-0.5
2SA1859
R128
3
1
47
-1.2
2
3
1
2
Q115
2SA1358
1
R143
10 1/4w
-37.0
2
HP DET
5
5
2
HP ON
4
4
2
3SPKR
3
3
2
SB SPKR
2
2
R242
2
10 1/4w
M-SPKR
1
1
JN02
37.0
EH
1
Q214
2
2SC3421
1.8
1
Q212
3
2
2SC4883
-0.7
Q216
R227
1.2
R239
2SC2922
1
47
0.6
3
22K
2
0.6
Q218
R229
1
10
R233
2SC2240
0
3
1K
2
0
3
0
2
R226
1K
1
VH
J102
R234
1K
FL
1
1
FR
2
2
0
R230
3
3
3
SBL
10
Q217
-0.5
2
2SA1216
4
4
SBR
Q213
-0.5
2SA1859
3
R228
1
47
-1.2
2
3
1
Q215
2
2SA1358
1
37.0
+B
5
5
P-GND
R243
4
4
-B
-37.0
-37.0
3
3
+18V
2
2
-18V
1
1
J837
VH
R342
10 1/4w
37.0
CN14
RN40
10/50V
6.8K
From Main Transfomer
1
3
2
Q314
QN08
2SC3421
2
1.8
1
Q312
3
1
2
2SC4883
2SA970
-0.7
Q316
R327
1.2
R339
RN41
2SC2922
1
47
0.6
3
22K
22K
2
0.6
Q318
R329
1
10
R333
2SC2240
0
3
1K
2
0
3
0
2
R326
1K
1
R334
1K
0
R330
3
10
Q317
-0.5
2
2SA1216
Q313
-0.5
2SA1859
3
R328
1
47
-1.2
2
3
1
Q315
2
2SA1358
1
R343
10 1/4w
-37.0
PH
PH
JN62
WN62
CN66
2
2
1
1
1/50V
PH
PH
JN47
WN47
CN18
2
2
1
1
1/50V
SAN
W504
From J504(P414)
HEAD PHONES OUT
JP99
CP92
CP91
Dummy
JP93
Dummy
CP93
0.1
EARTH
EH
JP92
SPEAKER OUTPUTS
FL
FR
SBL
SBR
WP91
J149
J349
JP91
EH
5V
QN04
C
1
RN27
2SC2458
4.7K
2
B
1A
1A
1A
E
3
DN07
DP91
DN05
onlySR9200
JUMPER
2
2
5V
QN05
C
1
RN99
RN28
2SC2458
1
1
0V
2.2K
1
2
2
5V
B
W351
1
2
RN98
SDN
5V
E
3
DUMMY
0V
QN06
35V
SCN
C
1
WN51
RN29
2SC2458
WN51
4.7K
C409
0.022
2
1
C410
0.022
B
10 1w
R438
C309
0.022
2
C310
0.022
E
3
10 1w
R338
C209
0.022
3
C210
0.022
10 1w
R238
C109
0.022
C110
0.022
10 1w
R138
VH
VH
VH
J104
J106
J103
W102
J105
W836
J107
VH
SDN
VH
D25XB60
1A
D502
26V
330 1/4W
35V
R539
1
2
3
4
1
2
3
4
VH
D841
Z26
J831
AC42v
1
1
2
2
AC27v
VSB24STB 16A
3
3
AC 0v
4
4
AC27v
VSB24STB 16A
5
5
AC42v
18000/71V
18000/71V
DN01
DN02
RN24
RN46
RN25
1 1/4w
3.3K
3.3K
1A
1A
36V
VH
330 1/4W
J840
Z75
1
1
R538
AC5v
D503
2
2
26V
1A
78M18
D833
D837
1 1/2W
35V
1
3
18V
Q831
R833
1A
1A
2
1A
1A
D831
D835
D834
D838
1A
1A
1
EH
1A
1A
Z34
J838
1 1/4W
Q832
FL1
3
3
R834
-36V
2
3
-18V
D832
D836
79M18
FL2
2
2
VKK
1
1
78M18
1
3
18V
Q833
To Display
-30V
2
P834
(RPS)X831
JB
PN24
WN62
2
1
F2
From J501(P154)
JB
PN14
WN47
2
1
D2
12
SPEAKER OUTPUTS
ML
MR
SL
SR
CENTER
J199
J299
P164
DN08
DN09
1A
1A
only SR8200
1A
DN06
U496
U497
2
1
U498
U499
J351
only SR8200
VH
EH
2SC2458
C
1
JN51
QN07
1
1
35V
2
B
C359
0.022
C360
R388
10 1w
2
2
0V
E
3
0V
C259
0.022
C260
R288
10 1w
3
3
M-SPKR
C159
0.022
C160
R188
10 1w
VH
VH
VH
J156
J154
J153
From J152(P154
W156
W883
J883
J155
J157
VH
VH
VH
From J884(P154)
Q503
1
C
2SC2458
R537
4.7K
2
B
3
E
37V
Q506
2SC2458
1
R560
2
0V
10K
2SC2458
3
3
Q507
2
1
Q508
2SA1048
EH
-37V
JN01
5V
1
1
AVSSOUT
DN03
4V
PROTECT1
2
2
5V
3
3
AVSSDET
5V
4
4
PROTECT2
Q504
2SC2458
R552
DN04
220K
To & From u-Com
0.1
C512
R562
0V
10K
4.7K
R551
Q505
DTC114
9V
GND
EH
J839
J531
W501
EARTH

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