D5SBA20
100n
100n
LEU0169
9912
3104 217 05800
Monoboard Supply Part FR735
+VL
–VL
4700
µ
4700
µ
–30
BC327-25
BC327-25
3k3
BZX79/C15
22k
BZX79/
C5V6
3
2
1
100n
1N4003GP
4x
100n
1N4003GP
1N4003GP
2200
µ
0E33
1
4
2
3
5
4
3
2
1
47E
47E
1
2
Front Part
To 1426
amp stdby
amp pd
1
4
3
2
BC847B
µ
1
10k
180k
+5D
L7805CP
REF
100n
1
REF
2
3
+5D
S
DIG
f1
f2
3k3
+V
Relay
MFD
BZX79/C15
A
A
A
1N4003GP
220
µ
S
S
S
T1A6
amp
prot
S
amp
prot
S
S
+5D
S
470n
REF
S
REF
REF
REF
100n
3
2
1
470n
L7812CP
+12
1N4003GP
L7805CP
REF
100n
1
REF
REF
2
3
470n
+5
µ
3300
1000
µ
0E33
S
15k
15k
10k
10n
100n
REF
10k
BC857B
BD534FP
10E
–12
1N4003GP
3
4
5
6
f2
7
f1
8
+5D
+5
–30
–30
+5D
+5
DIG
Left & Right
To
A
3
5
4
2
1 +VL
–VL
–VL
+VL
& Center
Amplifier
A
REF
470n
REF
10
REF
µ
REF
Center & Surround
To 1902
Mains trafo
To 1073
Mains trafo
To 1072
Mains trafo
To 1071
Mains board
To 0051
amplifier
MONOBOARD SUPPLY PART SR3000
–30V CIRCUIT
POWER DOWN
CIRCUIT
9260
6281
6251
2251
2254
1251
2259
2260
7257
7258
3269
6280
3266
6276
1253
2268
2266
6257
6258
6259
6262
6263
6261
2269
3254
1255
3270
3271
1257
1254
3256
2278
7253
3258
2276
6267
3268
9251
9252
6275
2283
1258
2277
2270
2271
6260
6268
6265
2273
2274
2287
2275
3257
3295
3292
3293
2295
2281
3294
7908
7910
3291
6274
1265
2282
2290
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
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
1251
A1
1253
I1
1254
L1
1255
F1
1257
L9
1258
E3
1265
G9
2251
B3
2254
C4
2259
D8
2260
C8
2266
I3
2268
J4
2269
J5
2270
I5
2271
I6
2273
K5
2274
K6
2275
K4
2276
L5
2277
L6
2278
M3
2281
H5
2282
H7
2283
F4
2287
K4
2290
H5
2295
H6
3254
J5
3256
M4
3257
L3
3258
M3
3266
F7
3268
E5
3269
E5
3270
F7
3271
F7
3291
G4
3292
H7
3293
H6
3294
H6
3295
I7
6251
B4
6257
I3
6258
I3
6259
I4
6260
H6
6261
J3
6262
J3
6263
J4
6265
J6
6267
L6
6268
K2
6274
D3
6275
D2
6276
E6
6280
F6
6281
F6
7253
M3
7257
E5
7258
E6
7908
H6
7910
G6
9251
B3
9252
C3
9260
E4
11-9
Summary of Contents for SR-3000
Page 38: ......
Page 49: ...10 1 TABLE OF CONTENTS Circuit diagram 10 2 Component layout 10 3 Partslist 10 5 MAINS BOARD ...
Page 50: ......