SCH20_AMP1
ANALOG AUDIO
DIGITAL AUDIO
TMDS SIGNAL
VIDEO SIGNAL
GND LINE
POWER- LINE
POWER+ LINE
COMPONENT (Y)
-B
AGN
D
AGN
D
AGN
D
AGN
D
AGN
D
AGN
D
FR_
IN
R527
470
OPE
N
D44
5
H
IGHGN
D
SL
DC_DET
4
AS
O
TR_THERMA
L
RAD
I_THERMA
L
AGN
D
AGN
D
AGN
D
AGN
D
FL_
IN
R484
470
OPE
N
D44
7
OPE
N
D44
3
C51
7
OPE
N
R73
2
2K
2
R409
150K
R528
1K(1)
R529
1K(1)
1K2
R705
R461
12K(2)
R420
220K
R445
OPEN
C417
OPEN
C416
10/100
C403
10N-K
SR
SL
FR
SB
R_
IN
SB
L_
IN
R514
1K2
C_
IN
SR_
IN
SL_
IN
C522
OPEN
C440
22/50(RA3)
C521
OPEN
C408
22/50(RA3)
33K
R524
R515
JUMPER
R496
150K
R452
150K
ZD404
ZJ5.1A
33K
R437
R428
JUMPER
ZD401
ZJ5.1A
2N2-K
C445
OPEN
C529
R485
1K(1)
220P-J
C421
OPEN
C528
100K
R446
R441
1K(1)
2N2-K
C413R440
470
220P-J
C405
100K
R402
R719
220
R486
1K(1)
OPE
N
D44
6
1K2
R704
R442
1K(1)
R717
220
1K2
R703
1N4148
D412
1N4148
D406
D413
1N4148
R447
270(1)
R418
12K(2)
R403
270(1)
D401
1N4148
Q436
KTC3206Y
C443
470P-500V
R487
270(1)
C427
470P-500V
R443
270(1)
KTC3206Y
Q412
C467
OPEN
R507
220K
R520
220K
C499
OPEN
R477
220K
R463
220K
R433
220K
JP468
JUMPER
JP537
OPEN
470
R509
R495
OPEN
JP544
OPEN
470
R465
R451
OPEN
JP416
JUMPER
KTC3964
Q409
R404
OPEN
R526
22(1)
C446
OPEN
C433
OPEN
R502
22(1)
C430
OPEN
R458
22(1)
C414
OPEN
R439
22(1)
R415
22(1)
OPEN
C402
R511
0R47(2)
0R47(2)
R517
0R47(2)
R474
2SD2560
Q416
Q410
2SB1647
R424
0R47(2)
2
1
TP403
C432
10/100
R456
10K
R457
10K
R413
10K
R414
10K
2
1
TP401
10K
R510
5K6
R513
R504
160K
10K
R466
R460
160K
5K6
R426
R417
160K
10K
R423
C
FL
+H
IG
H
B
R493
OPEN
Q405
2N5401S
R421
22K
-H
IG
H
B
+H
IG
H
B
1K2
R536
H
IGHGN
D
-H
IG
H
B
SR
R508
OPEN
FL
C
PAGE 2
AMP B'D 2/2_M1
CHASSIS
R449
OPEN
D458
0
R733
OPEN
SBR_
IN
SB
L_
IN
SR_
IN
SL_
IN
C424
22/50(RA3)
C520
OPEN
ZD407
ZJ5.1A
33K
R481
R472
JUMPER
100K
R490
220P-J
C437
2N2-K
C429
OPEN
C527
OPE
N
D44
8
R718
220
OPE
N
D44
4
1N4148
D418
R491
270(1)
R505
12K(2)
D407
1N4148
R530
270(1)
KTC3206Y
Q424
C411
470P-500V
C435
OPEN
R489
OPEN
JMPER
JP520
C43
9
100/50(KOSHIN
)
KTC3964
Q433
JP518
OPEN
C42
3
100/50(KOSHIN
)
KTC3964
Q421
R408
OPEN
100
/50(K
O
SH
IN
)
C40
7
R422
470
R483
22(1)
2SD2560
Q428
Q434
2SB1647
R467
0R47(2)
Q422
2SB1647
2SD2560
Q404
0R47(2)
R430
C448
10/100
R500
10K
10K
R501
2
1
TP402
5K6
R469
FR
R551
OPEN
R464
PRF18BF471QB5RB
1
2
3
5
4
CP402
M
A
IN
1/
3_
A
5
M
A
IN
1/
3_
B
3
C51
4
330
/6
.3
C51
3
330
/6
.3
C51
5
22/1
6
R73
1
2K
2
C51
6
OPE
N
4
3
2
1
6
7
5
CN404
HDM
I D
IGI
TA
L
CN
T G
9
R410
JUMPER
C442 100/50(KOSHIN)
R405
270(1)
10/100
C415
R506
22K
R499
15K
22K
R459
R454 680K
C418
100N-K
22K
R416
15K
R412
R406
DHPTF1608-115T
OPEN
C419
TR_THERMAL
ASO_DET
DC_DET3
PAGE 2
AMP B'D 2/2_A1
R523
470K
C444
470P-100V
R712
JUMPER
5
1
2
3
4
HN4A06J
Q419
Q425
KTA1024Y
R497
JUMPER
JUMPER
R453
R444
1K2
AGND
R436
470K
470P-100V
C412
R710
JUMPER
R427
1K2
Q401
KTA1024Y
1K2
R401
R525
220
KTC3206Y
Q435
33K
R516
C441
470P-500V
R492
270(1)
Q426
KTA1024Y
1N4148
D411
33K
R473
R478
3K3(1)
C425
470P-500V
C426 100/50(KOSHIN)
C422
220P-100V
Q414
KTA1024Y
R448
270(1)
1N4148
D405
R438
220
R434
3K3(1)
KTC3206Y
Q411
33K
R429
C406
220P-100V
C409
470P-500V
0R47(2)
R512
0R47(2)
R518
D415
OPEN
ZD409
OPEN
C
. W.
VR41
3
1K(B)-
V
C436
OPEN
C431
10/100
0R47(2)
R475
ZD406
OPEN
D410
OPEN
R479
560
ZD405
OPEN
R476
2K7
D404
OPEN
R435
560
0R47(2)
R425
D403
OPEN
ZD402
OPEN
R432
2K7
C404
OPEN
2N5551S
Q430
R726
56K
22K
R503
C434
100N-K
R498 680K
R494
DHPTF1608-115T
Q427
2N5401S
Q415
2N5401S
R462
22K
D408
1N4148
R455
15K
2N5551S
Q406
R419
22K
D402
1N4148
56K
R724
C401
100N-K
Q417
OPEN
R407
10K
RADI_THERMAL
D457
OPEN
DC_DET4
R734
OPEN
4
3
1
2
6
5
7
8
9
10
11
12
13
CP401
S
R
5011
:
P
R
E
O
U
T
1/
2
_
B
9
X
3300
: IN
P
U
T
1/
1
_
M
1
R488
1K2
Q413
KTA1024Y
R471
1K2
R480
470K
C428
470P-100V
R711
JUMPER
5
1
2
3
4
HN4A06J
Q408
5
1
2
3
4
HN4A06J
Q407
1N4148
D417
R521
3K3(1)
C438
220P-100V
R482
220
KTC3206Y
Q423
C410 100/50(KOSHIN)
KTA1024Y
Q402
C447
10/100
ZD408
OPEN
D416
OPEN
R522
560
C
. W.
VR40
3
OPE
N
2K7
R519
0R47(2)
R468
C420
OPEN
D409
OPEN
C
. W.
VR40
2
OPE
N
C
. W.
VR41
2
1K(B)-
V
0R47(2)
R431
ZD403
OPEN
C
. W.
1K(B)-
V
VR41
1
C
. W.
VR40
1
OPE
N
D414
1N4148
2N5551S
Q418
R725
56K
R450
DHPTF1608-115T
680K
R411
Q403
2N5401S
5
6
7
8
9
10
4
3
2
1
CP403
BKT400
BRACKET
PAGE 1
AMP B'D 1/2
SR5011 AMP SCH
25.9V
61V
0V
0V
-61V
-1.1V
-58V
0.6V
55.9V
55.3V
-58V
Point A
Point C
Point A
Point B
Point C1
Point C2
Voltage A
Measurement condition
・
Voltage measurement
No signal
・
Waveform measurement
INPUT: 200mVrms / 1KHz (ANALOG)
Surround mode: MCh Stereo
VOL: 70
Speaker load: 8ohms
Point C1
Point C2
59.4V
1.1V
-58.7V
Point B
DC mode
AC mode
Voltage A
E5
E6
CN404
CP401
CP402
CP403
26
Caution in
servicing
Electrical
Mechanical
Repair Information
Updating