Sony STR-KM22 - Printed Wiring Board - SURR BACK AMP Board (KM77); Schematic Diagram - SURR BACK AMP Board (KM77)

STR-KM22/KM55/KM77
STR-KM22/KM55/KM77
4242
5-31. SCHEMATIC DIAGRAM – SURR BACK AMP Board (KM77) – 5-30. PRINTED WIRING BOARD – SURR BACK AMP Board (KM77) –
• See page 14 for Circuit Boards Location. • : Uses unleaded solder.
1
A
B
C
D
E
F
2 3 4 5 6 78
JS401
LP402
Q408
BE
BE
B
C
C
B
B
E
E
BE
BE BE
R409
Q409
C409
R410
Q410
R412
R413
C418
R420
Q458
R459
Q459
C459
R460
Q460
R462
R463
C469
R470
JW400
JW401
JW402
JW403
JW407
JW409
JW412
JW413
JW411
JW410
JW414
JW415
JW416
JW417
JW418
JW421
JW427
JW424
JW429
JW425
JW426
JW423
JW428
JW404
JW405
JW420
JW430
JW406
15
CN405
R432
R482
1
12
CN406
C419
C468
Q402
Q452
R401
R402
R403
R404
R406
E
B
E
B
R407
R408
R411
R414
R415
R416
R417
R418
R419
C404
C411
C413
C414
R451
R452
R453
R454
R456
R457
R458
R461
R464
E
B
E
B
E
B
E
B
R465
R466
R467
R468
R469
C454
D401
C461
D402
C463
D451
D452
CL404
CL405
CL406
CL407
CL408
CL409
CL410
CL411
CL412
CL413
Q401
Q405
Q406
Q451
Q455
Q456
C408
C405
C401
C458
C455
C451
C417
C467
R474
R473
D453
R475
R476
R477
R472
Q457
C471
C464
R481
R480
C462
R479
R478
D454
D455
CL422
C412
D403
R426
R425
R427
R424
R423
R422
R431
D405
D404
R429
R428
R430
C421
Q507
CL462
JR
JW408
CL461
CL401
CL402
CL403
CL414
CL415
CL416
CL417
CL418
CL419
CL420
CL421
CL452
CL453
CL455
CL456
CL457
CL458
CL459
CL463
R405
R455
C402
C452
JS451
Q404
BBE BE
C
E
Q403
B
C
E
Q454
B
C
E
Q453
B
C
E
C
C
E
1-889-215-
11
(11)
SURR BACK AMP BOARD
(KM77)
>004P
MAIN BOARD
CN952
(Page 21)
>014P
MAIN BOARD
CN351
(Page 21)
>006P
MAIN BOARD
CN958
(Page 21)
>006P
MAIN BOARD
CN953
(Page 21)
1
A
B
C
D
E
F
G
H
I
J
K
2 3 4 5 6 78
SURR BACK AMP BOARD
47pC463
C458
47p
47pC411
47pC461
C452
0.022
C401
0.01
C402
0.022
C408
47p
100p
C417
C414 4p
3300p
C412
C451
0.01
C455
47p
C464 4p
220pC454
3300p
C462
220p
C404
100p
C467
C405
47p
47p
C413
4p
C421
4p
C471
10V 220
C469
47 25V
C459
50V 10
C468
10 50V
C419
10V 220
C418
47 25V
C409
CL457
CL405
CL406
CL407
CL408
CL409
CL410
CL455
CL411
CL412
CL413
CL456
CL452
CL415
CL401
CL416
CL417
CL418
CL458
CL403
CL453
CL459
CL402
CL419
CL420
CL421
CL461
CL462
CL422
CL404
CL414
CL463
4P
CN405
1-B
3+B
4 SBR
5 SBL
R413
R463
D404
DA2J10100L
DA2J10100L
D405
DA2J10100L
D452
D454
DA2J10100L
DA2J10100L
D403
DA2J10100L
DA2J10100L
D402
DA2J10100L
D451
D455
DA2J10100L
D453
DA2J10100L
D401
5
JS451
5
JS401
HN4A06J-GRBL
Q507
POWER AMP
BEB
CC
BEB
CC
Q457
HN4A06J-GRBL (TE85R)
POWER AMP
E
C
B
Q454
MP1620-OPY-MK
E
C
B
Q404
MP1620-OPY-MK
C
B
E
Q453
MN2488-OPY-MK
C
B
E
Q403
MN2488-OPY-MK
BOOSTER
BOOSTER
BOOSTERBOOSTER
2SA1162-YG-TE85L
BIAS
BIAS
BIAS
BIAS
Q451
2SA1162-YG-TE85L
Q401
2SA1514KT146S
Q405
KTA1024-Y
POWER AMP
Q458
2SA1514KT146S
Q456
2SA1514KT146S
Q406
2SA1514KT146S
CURRENT DETECT
CURRENT DETECT
CURRENT DETECT
CURRENT DETECT
Q455
KTA1024-Y
POWER AMP
Q408
KTC3206-Y
POWER AMP
Q409
KTC3112
Q452
KTC3206-Y
POWER AMP
Q410
KTC3112
Q402
KTC3206-Y
POWER AMP
Q459
KTC3206-Y
POWER AMP
Q460
6.8k
R455
6.8k
R405
100
R459
0.47R432
10
R470
6.2k
R462
100
R410
100
R460
100
R409
6.2k
R412
10
R420
0.47
R482
4.7k
R425
470
R479
220
R424
47k
R468
270
R481
4.7k
R477
4.7k
R426
4.7k
R427
470
R429
56k
R422
2.2k
R478
4.7k
R476
220
R473
2.2k
R480
R417
47k
2.2k
R456
560
R458
R469
100k
220
R474
4.7k
R475
2.2k
R453
2.2k
R430
R419
100k
68k
R404
2.2k
R451
68k
R452
4.7kR461
15k
R465
47k
R418
15k
R415
2.2k
R403
68k
R402
1.5k
R464
1.5k
R414
15k
R457
2.2k
R401
68k
R466
15k
R407
560
R408
2.2k
R406
R467
47k
220
R423
2.2k
R428
68k
R416
68kR454
56kR472
270
R431
4.7k
R411
11P
CN406
1 LEVEL_DET
3
OVERCURRENT_DET
4 DC_DET
5GND
6GND
9
8
7
PREAMP_GND
NC
NC
10 SBR_IN
11 PREAMP_GND
12 SBL_IN
>016S
MAIN BOARD
(3/9)
CN952
(Page 25)
>021S
MAIN BOARD
(3/9)
CN351
(Page 25)
>027S
MAIN BOARD
(4/9)
CN953
(Page 26)
>011S
MAIN BOARD
(2/9)
CN958
(Page 24)
KM77
-0.40
0
-59.1-0.4
0
-0.40
0
-58-0.4
0
0
-1.1
-59.3
0.5
-0.6
0.5
0.5
-1.1
0.5
-0.6
-1.1
59.4
58.7
1.1
58.9
58.7
1.1
-57.7
-57.7-57.7
15
0.1 0.6 0.1
-57.7-57.7
0.1 0.6 0.1
-57.2
-57.7
-1.1
-57.6
-57.2
-57.7
-1.1
-57.6
-57.7
15
1.1 -1.1
0.5 -1.1
059.3
1.1
0
-1.1
-59.3
0
59.3
1.1