Marantz SR-3000, Service Manual

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LEU0162
9926 3104 217 05800
LEFT & RIGHT & CENTER & SURROUND AMPLIFIER FR735/00/01/14
STK496-070
1k
100k
From 1265
Monoboard
–VL
6
3
47E
22
µ
+VL
2
1
10
µ
47E
22
µ
BC847B
10k 33k
220E
1000
µ
–VL
–VP
2
µ
2
2
56k
µ
2
–VP
–VP
0E22
NF2 13
8
BC847B
1k5
1k
BC847B
1k5
–VC2
1
CCC 12
IN2 14
NF1 11
470p
1k8
+VP
+VL
+VP
IN1
µ
22
10
220p
+VP
9
0E22
–VC1
2
OUT2 7
3
2
L
220n
4n7
+VL
+VC
3
OUT1 6
1
4
R
–VL –VL –VL –VL –VL –VL
1N4148
5
IN_S
IN_S
IN_S IN_S 4E7
µ
1
4E7
220n
A
56k
4p7
4E7
1
µ
A
220n
220n
4E7
PTC
Substrate 15
A
4n7
SURROUND
47k
10
µ
A A
A A
A
IN_S
1k8
µ
22
IN_S
220p
56k
IN_S IN_S
470p
56k
4p7
A
BC857B
47k
A
C3V3
BZX79/
A
10k
+VL
10n
0E22
–VL
0E22
–VL
100p
chassis
PTC2 PTC1
4 5
47n
IN_S
2
µ
2
IN_LR
56k
IN_LR
1k8
µ
22
IN_LR
470p
IN_LR
220p
supply Part
4E7
1
µ
A
220n
220n
4E7
56k
4p7
56k
4p7
0E22
1k
1k5
0E22
BC847B
1k5
0E22 0E22
BC847B
1k
2
µ
2
56k
IN_LR IN_LR
470p
10
µ
220n
220n
A
4E7
1
µ
4E7
10
µ
A
A
1k8
IN_LR
µ
22
220p
IN_LR
A
47E
A
µ
22
–VP
47E
µ
22
+VP
+VL +VL
–VL –VL
22n
A IN_S
A IN_LR
22n
BC857B
BZX79/
1N4148
47k
A
A
10n
C3V3
–VP –VP
BC847B
10k
100k
A
33k
220E
1000
–VP
10k
+VL
µ
BC847B
39k
+5D
REF
BC847B
REF
1N4148
REF
100k
REF
+5D
680E
47k
+5D
BZX79/C6V8
100
µ
REF
BC857B
1N4148
680E
+5D
47k
47k
47k
6
5
L
5
6
4
3
1
2
A
A
A
5
4
3
1
2
6
4
R
2
C
3
1
4n7
100p
100p
4n7
100p
4n7
7
3k9
Part
Right in
from Right out
from Left out
Left in
Control
Volume
From
from Center out
Center in
Surround in
from Surround out
Control
Volume
Part
To/From
amp prot
amp lr on
amp s on
Supply
Part
Monoboard
From
prot
amp
1520
L
L
L
L
–VPL –VPL –VPL
1k
BC847B
–VP
10k
100k
–VP
10k
100k
BC847B
1k
–VPL –VPL
47n 470E
REF
10k
REF
BC847B
100k
100k
1N4148
–VL –VL –VL
REF
BC857B
µ
10
fmute
–VL
hst
IN_S IN_C
STK496-070
NF2
NF1
IN2
CCC
IN1
–VP
–VP
8
–VC2
1
–VC1
2
OUT2
Substrate
OUT1
+VL +VP
+VP
9
+VC
3
PTC2
PTC
4
PTC1
5
13
14
12
11
10
7
15
47n
6
IN_LR
IN_LR
hst
470E
470E
470E
470E
1N4148
4
SOAR PROTECTION
CENTER & SURROUND AMPLIFIER SR3000
SOAR PROTECTION
CIRCUIT
AMP ON/OFF
PROTECTION
CIRCUIT
LEFT & RIGHT AMPLIFIER SR3000
HST & DC
AMP ON/OFF
CIRCUIT
4910
6290
4908
4909
9302
9301
1902
6902
5901
2909
2921
1901
3930
7901
2910
2912
3908
2905
2906
3929
7904
7903
3928
3927
3921
3906
2913
2925
3918
3917 3925
7902
2901
3901
2902
2923
3915
3920
3922
3905
3916
2908
3902
2903
5902
3910
2916
2920
3919
2917
3903
2924
3913
2919
2918
3911
2914
3914
2922
7906
3932
6903
3933
2928
3931 3926
2930
9903
2904
2310
3308
3310
2315
2311
2313
3309
5302
2358
2314
3352
3304
2307
3319
2324
9308
3334
3338
3339
3337
7305
3340
3342
3335
3341
7306
2316
3314
2319
9306
2306
2359
2321
3353
3311
5304
2349
2330
3315
2325
3328
2352
3301
2302
9309
9310
2911
2301
7304
6304
6305
3356
2365
3329
3330 3326
3327
2350
7309
3357
7259
3272
7256
6279
3264
3259 3260
6270
2280
7255
6271
3263
3307
3305
3306
1302 1303 1304
2317
2322
2331
2328
2339
2335
3267
9901
3358
3360
3359
7310
3937
3936
7909
3935
2298
3251
3943
7260
3252
3253
6289
7261
2297
9907
7303
2356
3361
3362
3946
3947
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
A A
B B
C C
D D
E E
F F
G G
H H
I I
J J
K K
L L
M M
N N
O O
1302 B18
1303 B18
1304 B19
1901 L18
1902 M4
2280 H6
2297 E4
2298 E5
2301 K3
2302 M3
2306 L3
2307 A15
2310 B8
2311 B10
2313 A10
2314 C16
2315 A9
2316 C8
2317 B19
2319 C10
2321 D16
2322 C19
2324 D15
2325 D10
2328 D19
2330 D9
2331 D19
2335 E19
2339 F19
2349 N3
2350 C7
2352 O3
2356 C14
2358 C16
2359 D16
2365 C4
2901 M5
2902 M5
2903 J16
2904 L15
2905 J9
2906 K11
2908 L16
2909 M18
2910 J11
2911 O8
2912 J10
2913 L9
2914 L11
2916 M16
2917 L18
2918 M11
2919 M10
2920 M16
2921 L16
2922 M16
2923 O5
2924 O5
2925 L8
2928 L5
2930 N18
3251 E5
3252 E5
3253 F5
3259 G6
3260 G6
3263 H4
3264 H6
3267 I6
3272 H4
3301 M2
3304 A15
3305 D17
3306 B17
3307 E17
3308 B9
3309 B15
3310 A9
3311 D15
3314 C9
3315 D9
3319 D15
3326 C6
3327 C6
3328 N2
3329 C5
3330 C6
3334 F12
3335 F14
3337 F11
3338 F12
3339 F12
3340 F13
3341 F14
3342 F15
3352 C16
3353 D16
3356 C4
3357 B5
3358 C7
3359 D6
3360 D7
3361 B8
3362 C8
3901 M5
3902 J15
3903 L17
3905 K16
3906 K10
3908 J10
3910 L16
3911 L10
3913 M10
3914 M15
3915 N5
3916 K17
3917 L7
3918 L7
3919 M17
3920 L6
3921 N13
3922 N15
3925 L7
3926 O12
3927 O13
3928 O13
3929 O14
3930 O15
3931 O15
3932 L5
3933 K6
3935 L8
3936 J7
3937 J7
3943 E5
3946 J9
3947 L9
4908 F10
4909 L10
4910 J6
5302 B15
5304 C15
5901 K16
5902 L16
6270 G6
6271 H6
6279 I4
6289 F4
6290 D4
6304 C5
6305 C4
6902 L5
6903 K6
7255 G5
7256 H5
7259 H4
7260 F5
7261 D4
7303 A10
7304 C6
7305 F13
7306 F13
7309 C4
7310 D7
7901 J11
7902 L7
7903 N14
7904 N14
7906 K5
7909 J8
9301 L2
9302 N2
9306 E12
9308 G12
9309 L2
9310 N2
9901 J9
9903 J16
9907 O10
11-11 11-11