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Onkyo A 9555 Service Manual

Onkyo A 9555
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A-9555
SCHEMATIC DIAGRAMS-1
POWER AMPLIFIER SECTION
A-9555
Lch
Rch
GND
M_GND
PRT
+5V
SPRDET
SPLDET
+5V
PWMCNT
DCPRT
+12V
SPBRL
SPBDETRL
SPADETRL
NFMUTE
SPARL
GND
GND
NC NC
(180K)
(180K)
(6.8K)
(6.8K)
4.7
4.7
4.7
4.7
R423
470
R433
2.2K
R435
100K
C432
681
R412
4.7K
R410
4.7K
R409
4.7K
R481
120F
R439
22
R449
390
R455
560
R459
560
D403
1SS352
D405
1SS352
C417
102F
C407
47/50
D407
1SS352
C423
101
C427
224
C405
221
R564
220
C535
100/16
C603
103
C565
471
D505
M1FL20U
C555
471
D503
M1FL20U
C601
103
C550
102
D601
1SS352
D602
1SS352
R438
27K
R436
100K
R434
2.2K
C408
47/50
R452
390
R450
390
R460
560
R456
560
Q412
2SC2713
D404
1SS352
D412
1SS352
D408
1SS352
C422
101
C424
TF-C
101
C428
224
R572
33
C538
330/16
C542
224
D504
M1FL20U
C602
103
C556
471
D506
M1FL20U
C566
471
C604
103
D519
S1NB60
D604
1SS352
R622
560
C615
104
Q533
2SC2712
Q534
2SA1162
Q607
RN1402
D512
1SS352
R454
2.2K
R458
2.2K
R641
220K
R607
33K
R601
33K
R545
100K(F)
R546
100K(F)
R608
33K
C531
334
C532 334
R550
100K(F)
R539
0.1
R540
0.1
P602
C404
47/50
C403
47/50
R437
27K
Q606
RN2402
R602
33K
D612
1SS352
P601
D511
1SS352
R549
100K(F)
C596
102
D603
1SS352
D552
UDZS5.6B
R651
NC
R652
NC
R655
NC
R584
3.9K
C572
47/35
C554
224
C536
100/16
R565
220
C559
NC
D509
NC
D507
NC
D508
NC
D510
NC
R611
47K
C553
224
D413
1SS352
D409
1SS352
D414
1SS352
D410
1SS352
R541
0.1
R451
390
R542
0.1
R483
1K
Q621
RN2404
C430
100/6.3
C507
33/35
C571
47/35
C508
33/35
C527
47/16
C607
100/16
C610
1/50
C614
4.7/50
C435
100/25
C437
100/25
C436
100/25
C438
100/25
C511
100/16
C512
100/16
C509
47/63
C510
47/63
R496
220
R498
220
R424
470
R408
470
R407
470
D406
1SS352
R428
100
3
2
1
D411
1SS352
R427
100
1
2
3
R411
4.7K
Q419
RN1441
C411
TF-C
104
R642
220K
C412
TF-C
104
Q420
RN1441
Q622
RN2404
C539
334/250
C540
334/250
C544
153/250
L502
22u
R551
22
R552
22
C406
221
C525
3300/25
P503
P504
P505
R443
27K
R563
1.5K
R562
1.5K
Q603
2SC2712-GR
Q604
2SC2712-GR
R484
1K
R401
2.2K
C401
TF-C
221
R402
2.2K
C402
TF-C
221
R623
THERMISTOR
D611
1SS352
C608
224
Q609
RN1402
R445
27K
D401
UDZS5.6B
D402
UDZS5.6B
Q403
2SC2712-GR
Q404
2SC2712-GR
Q531
2SA1837
Q532
2SC4793
R403
220K
R404
220K
R406
56K
R405
56K
R413
390K
R414
390K
R419
2.2K
R420
2.2K
R421
47K
R422
47K
R453
2.2K
R457
2.2K
R493
1.2K
R494
1.2K
R583
3.9K
R582
3.9K
R613
5.6K
R614
82K
R615
82K
R616
6.8K
R617
5.6K
R619
47K
R620
15K
R627
10K
R630
2.2K
R631
10K
R653
15K
R657
15K
R654
15K
R658 15K
R469
0
R471
0
R472
0
Q529
78L05
3
I
2
G
1
O
Q526
78L05
3
I
2
G
1
O
R440
33
R441
5.6K
R442
5.6K
R444
27K
R446
27K
R430
47
R432
47
R429
47
R431
47
C421
101
C419
102F
D518
LN15XB60
1
3
4
2
Q401A
HN3C51F-BL
6
2
1
4
5
3
Q615
TLP283-4
11
6 5
12
R482
120F
R649
NC
R650
NC
R647
NC
R648
NC
R646
0
R645
0
Q402
HN3C51F-BL
5
4
3
2
6
1
Q406A
HN3A51F
1
6
2
Q406B
HN3A51F
5
3
4
5
3
4
Q408
HN3A51F
1
6
2
1
6
2
Q418B
HN3A51F
5
3
4
Q405A
HN3A51F
1
6
2
Q405B
HN3A51F
5
3
4
Q407
HN3A51F
3
5
4
Q417
HN3A51F
1
6
2
5
3
4
Q605B
HN3A51F
5
3
4
1
6
2
Q608
HN3A51F
5
3
4
1
6
2
R618
100K
L505
NCH-1537
2
1 3
4
RL501
RL502
bus1977
P501
P502
Q674
2SA950
R673
390
Q617
RN1402
Q618
RN1402
Q619
RN1402
Q616
RN1402
Q623
RN1402
Q624
RN1402
R672
22K
R635
2.2K
R634
2.2K
4
13
14
3
2
15 16
1
Q411
2SC2713
Q610
2SA1162-GR
Q513B
TPC6901
3
4
2
Q513A
TPC6901
1
5
6
Q517A
TPC6901
1
5
6
Q519
2SA1162-GR
Q517B
TPC6901
3
4
2
Q514A
TPC6901
1
5
6
Q541
2SC2712-GR
C631
NC
C632
NC
Q542
2SC2712-GR
Q516
2SA1162-GR
C633
NC
C634
NC
Q613
M51957BFP
1
NC1
2
IN
3
NC2
4
GND
5
C
6
OUT
7
VCC
8
NC3
Q520
2SA1162-GR
Q544
2SC2712-GR
C429
100/6.3
C641
NC
C642
NC
C589
104
C590
104
C622
104
C621
104
5
4 3
Q410
H3C51F-BL
2
6
1
C409
47/25
C410
47/25
C505
47/25
C506
47/25
R489
12K
R490
12K
R492
2.2K
R581
3.9K
R586
2.2K
R669
8.2K
R670
8.2K
R417
0
R418
0
R470
0
R585
2.2K
R668
22K
Q521
FQP34N20
1
3
2
Q523
FQP34N20
1
3 2
Q522
FQP34N20
1
3
2
Q524
FQP34N20
1
3
2
R575
47K
R578
560K
C606
104
C605
104
D551
UDZS5.6B
R491
2.2K
R576
47K
C523
334
C524
TF-C
334
C522
334/100V
C521
334/100V
D517
LN15XB60
1
3
4
2
C520
334/100V
C519
334/100V
R640
100K
C517
18000/75
C518
18000/75
D501
M1FL20U
D502
M1FL20U
C537
330/16
R571
33
Q515
2SA1162-GR
R505
4.7
C541
224
D521
1SS357
R661
560
Q545
2SA1162-GR
Q503
2SC2712
Q547
2SA1162-GR
R663
560
R515
330
D523
1SS357
R514
330
D522
1SS357
Q546
2SA1162-GR
R662
560
R516
330
D524
1SS357
Q548
2SA1162-GR
R664
560
Q514B
TPC6901
3
4
2
Q518A
TPC6901
1
5
6
Q518B
TPC6901
3
4
2
Q409
HN3C51F-BL
4
5
3
R506
4.7
Q416A
TC74AC00FT
2
1
7
3
14
5
4
6
13
12
11
10
9
8
12
13
7
11
14
9
10
8
4
5
6
Q415A
TC74AC00FT
1
2
3
3 4
5 6
9
7
8
14
11 1012
13
3 4
10 11
9 8
5
7
6
14
12 13
Q414A
TC74AC14FT
2 1
Q413A
TC74AC14FT
1 2
R680
10K
R679
10K
R667
22K
L501
22u
C543
153/250
R637
68K
R638
5.6K
R681
R639
8.2K
R682
R603
15K
R604
15K
R609
15K
R610
15K
C581
101
C583
101
C585
331
C431
681
C582
101
C584
101
C586
331
R695
10K
R697
10K
R696
10K
R698
10K
L506
NCH-1537
4
3 1
2
RL503
RL504
C549
102
Q530
78L05
3
I
2
G
1
O
R671
2.2K
Q671
TLP283
3
2 1
4
Q672
RN2402
R633
10K
R632
2.2K
9
8 7
10
Q620
RN1402
Q504
2SC2712
3 2
1
Q673
RN1402
3
1
2
Q502
PZTA42
3 2
1
C562
101
Q501
PZTA42
C561
101
C564
101
C563
101
D515
UDZS15B
D514
UDZS15B
R513
330
R521
10
R522
10
R524
10
R502
560
R508
1.5K
R510
1.5K
R520
150
R518
150
R694
100
R568 100
R692
100
R666 100
R509
1.5K
R507
1.5K
R517
150
R519
150
R523
10
R501
560
R691
100
R665
100
R693
100
R567
100
C418
TF-C
102F
C420
TF-C
102F
6
2
1
6
1
2
R504
820
R503
820
R606
56K
R626
56K
R625
56K
R605
56K
R612
100K
Q601
2SA1255-Y
Q602
2SA1255-Y
C679 104
C680 104
R636
47K
R643
100K
C611
223
Q543
2SC2712
Q614
2SC2712
R628
68K
R629
12K
R644
68K
R559
0.47
R497
220
R495
220
bus1977
bus1806
bus1977
bus1977
C558
NC
C595
102
C557
NC
R525
6.8
R527
3.3
R533
15
R573
R529
6.8
R531
3.3
R526
6.8
R528
3.3
R534
15
R574
R530
6.8
R532
3.3
R468
2.7K
R467
2.7K
R557
820
R591
R592
R536
6.8
R535
6.8
Q525 78M12
1
I
2
G
3
O
Q536
78M12
1
I
2
G
3
O
R558
1.5K
R577
560K
R560
6.8K
R561
6.8K
R415
8.2K
R416
8.2K
R466
1.8K
R465
1.8K
C545
563
C546
563
C548
104
C547
104
L503
3.3u
L504
3.3u
R580
56
R579
56
A
B
To P TRANS.
T911
(SD-5 : A1)
To P TRANS.
T911
(SD-5 : A2)
To P TRANS.
T911
(SD-5 : A2)
U01
AMPLIFIER PC BOARD
NAAF-8708 (1/2)
B
A
LEFT
RIGHT
Lch
Rch
DC OFFSET
ADJUST.
DC OFFSET
ADJUST.
SPEAKERS
To NAAF-8708(2/2)
(SD-2 : D2)
To NAAF-8708(2/2)
(SD-2 : D4)
!
!
!
!
Q548
Q544
RED
RED
ORANGE
ORANGE
BLUE
BLUE
LALB
RBLB
(2W)
(2W)
(2W)
(2W)
(1/2W)
+13V
-13V
+13V
-13V
+57V
-45V
-57V
-57V
-52V
-57V
-52V
-57V
+57V
-45V
+57V
-57V
-52V
-57V
-37V
-57V
-57V
-52V
A
1
2
3
4
5
BCDEFGH
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

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Instruction Manual20 pages

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Onkyo A 9555 Specifications

A-9755

Power Output IconPower Output
power output (8 Ω, 1 kHz, DIN)150 W + 150 W
power output (4 Ω, 1 kHz, JEITA)300 W + 300 W
dynamic power (3 Ω, Front)330 W + 330 W
dynamic power (4 Ω, Front)270 W + 270 W
dynamic power (8 Ω, Front)170 W + 170 W
Audio Performance IconAudio Performance
total harmonic distortion (THD)0.08 % (1 kHz, 1 W)
damping factor25 (Front, 1 kHz, 8 Ω)
input sensitivity and impedance (CD)200 mV, 50 kΩ
input sensitivity and impedance (PHONO MM)2.5 mV, 50 kΩ
output level and impedance (REC OUT)200 mV, 2.2 kΩ
Frequency and Tone Control IconFrequency and Tone Control
frequency response (CD)10 Hz–60 kHz, +1 dB–3 dB
tone control (BASS)+10 dB, –10 dB, 100 Hz
tone control (TREBLE)+10 dB, –10 dB, 20 kHz
loudness control (50 Hz)+10 dB
loudness control (10 kHz)+2 dB
Power IconPower
power supplyAC 230-240 V, 50 Hz / AC 220-230 V, 50/60 Hz
power consumption125 W
stand-by power consumption0.3 W
Weight and Dimensions IconWeight and Dimensions
dimensions (W × H × D)435 × 144 × 431 mm
weight17.6 kg
speaker impedance4–16 Ω

A-9555

Power Output IconPower Output
power output (8 Ω, 1 kHz, DIN)100 W + 100 W
power output (4 Ω, 1 kHz, JEITA)200 W + 200 W
dynamic power (3 Ω, Front)230 W + 230 W
dynamic power (4 Ω, Front)200 W + 200 W
dynamic power (8 Ω, Front)120 W + 120 W
Audio Performance IconAudio Performance
total harmonic distortion (THD)0.08 % (1 kHz, 1 W)
damping factor25 (Front, 1 kHz, 8 Ω)
input sensitivity and impedance (CD)200 mV, 50 kΩ
input sensitivity and impedance (PHONO MM)2.5 mV, 50 kΩ
output level and impedance (REC OUT)200 mV, 2.2 kΩ
Frequency and Tone Control IconFrequency and Tone Control
frequency response (CD)10 Hz–60 kHz, +1 dB–3 dB
tone control (BASS)+10 dB, –10 dB, 100 Hz
tone control (TREBLE)+10 dB, –10 dB, 20 kHz
loudness control (50 Hz)+10 dB
loudness control (10 kHz)+2 dB
Power IconPower
power supplyAC 230-240 V, 50 Hz / AC 220-230 V, 50/60 Hz / AC 120 V, 60 Hz
power consumption120 W
stand-by power consumption0.3 W
Weight and Dimensions IconWeight and Dimensions
dimensions (W × H × D)435 × 148 × 431 mm
weight13.0 kg
speaker impedance4–16 Ω
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