Onkyo A-9555 Service manual
SERVICE MANUAL
SERVICE MANUAL
INTEGRATED AMPLIFIER
MODEL A-9555
A-9555
Ref. No. 3920
122005
B UPP
S UDC
S UPP
Black, Silver and Golden models
120V AC, 60HzB UDC
230-240V AC, 50Hz
120V AC, 60Hz
230-240V AC, 50Hz
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
G UGT
G UDT
G UGR
RC-627S
RC-627S
220-230V AC, 50/60Hz
120V AC, 60Hz
220-230V AC, 50/60Hz
SPECIFICATIONS
A-9555
Power output :
Dynamic power :
THD (total harmonic distortion) :
Damping factor :
Input sensitivity and impedance :
Output level and impedance :
Phono overload :
Frequency response :
Tone control :
SN ratio :
Speaker impedance :
Power supply :
Power consumption :
Stand-by power consumption :
Dimensions (W x H x D) :
Weight:
100 W + 100 W (8 , 1 kHz, DIN)
200 W + 200 W (4 , 1 kHz, JEITA)
230 W + 230 W (3 , Front)
200 W + 200 W (4 , Front)
120 W + 120W (8 , Front)
0.08 % (1 kHz, 1 W)
25 (Front, 1 kHz, 8 )
200 mV, 50 k (CD)
2.5 mV, 50 k (PHONO MM)
200 mV, 2.2 k (REC OUT)
70 mV (MM, 1 kHz, 0.5 %)
10 Hz - 60 kHz, +1 dB -3 dB (CD)
+10 dB, -10 dB, 100 Hz (BASS)
+10 dB, -10 dB, 20 kHz (TREBLE)
+10 dB, 50 Hz (LOUDNESS)
+2 dB, 10 kHz (LOUDNESS)
100 dB (CD, IHF-A)
70 dB (PHONO, IHF-A)
4 - 16
AC 230-240 V, 50 Hz
AC 220-230 V, 50/60 Hz
AC 120 V, 60 Hz
125 W
0.3 W
435 x 148 x 431 mm
13.0 kg
Analog inputs :
Analog outputs :
Speaker outputs :
Phones :
Specifications and features are subject to change without notice.
PHONO, CD, TUNER, TAPE, MD, HDD, LINE
MD, TAPE
2 (A, B)
1
A-9555
EXPLODED VIEW
A048
x 3 pcs.
A046
x 2 pcs.
A045
x 2 pcs.
A085
x 2 pcs.
A104
x16 pcs.
A139
x 2 pcs.
A963
x 8 pcs.
A103
P101A
x 2 pcs.
U09
A021
E401
x 8 pcs.
A123
x 2 pcs.
A102
F901
F901C
A145
A121
A043
A086
A037
A030
x 4 pcs.
A033
x 4 pcs.
A085
x 2 pcs.
A101
A100
A062
x 4 pcs.
T911
A033
x 7 pcs.
A064
x 4 pcs.
A063
x 4 pcs.
A061
x 4 pcs.
A046
U06
U01
A046
x 2 pcs.
A045
x 2 pcs.
A048
x 3 pcs.
A043
A029
A084
x 2 pcs.
U12
U03
U11
A034
U13
A145
U02
A051
A035
x 2 pcs.
A036
x 3 pcs.
A025
x 4 pcs.
A022
x 4 pcs.
A026
x 4 pcs.
U07
A034
x 4 pcs.
A006
A123
x 2 pcs.
A122
P212
A002
x 2 pcs.
A117
A081
A131
A009
A082
x 2 pcs.
U05
A001
A002
x 2 pcs.
A137
x 3 pcs.
A110
A138
x 3 pcs.
A002
x 10 pcs.
A053
A002
x 6 pcs.
A084
A130
x 3 pcs.
A008
A116
A052
A002
x 4 pcs.
A142
x 2 pcs.
A141
A140
A125
x 3 pcs.
A083
x 4 pcs.
A135
A105
A128
x 4 pcs.
U08
A126
x 3 pcs.
A127
A-9555
A124
A-9555
A
BLOCK DIAGRAM
PHONO
EQUALIZER AMP.
1
PHONO
CD
TUNER
2
IN
TAPE
INPUT SELECTOR
51
52
53
54
55
56
57
58
59
60
61
BCDEFGH
NJW1157
42
41
+
44
43
+
27
29
28
30
46
80
45
88
48
47
81
89
82
90
87
95
83
91
VOLUME
LOUDNESS
LOUDNESS
A
A
OUT
3
IN
MD
62
63
64
65
66
67
21
23
25
22
24
26
84
92
85
93
86
94
OUT
68
69
4
LINE
HDD
70
71
73
73
74
MICROPROCESSOR
REM IN
BACK UP
+
KEY / INPUT SELECTOR
MD
TUNER
TAPE
PHONO
CD
5
REMOTE SENSOR
RI
INTERFACE
TONE
MAIN IN
A-9555
L
SPEAKERS A
R
MUTING
1
TONE
2
RELAY
VL DIGITAL
LPF
L
SPEAKERS B
R
3
SPEAKER
8
4
5
MUTE
6
DETECTION
SPEAKER
DETECTION
HEAD PHONE AMP.
RELAY
MUTE
PHONES
7
PHONO
HDD
LINE
VOLUME
LOUDNESS
PURE DIRECT
RI
STANDBY
MICROPROCESSOR
POWER AMP.
POWER AMP.
DRIVER AMP.
MODULATOR
PHONO AMP.
SELECTOR
ANALOG
RELAY
+5.6V
5V 12V
+/-15V+/-7V
+/-15V
+12V
RED
ORANGE
BLUE
BROWN
GREEN
SUB TRANS.
POWER
MAIN TRANS.
FUSE
AC IN
A-9555
A
SCHEMATIC DIAGRAMS-1
POWER AMP. SECTION
1
Lch
C403
C401
47/50
221
TF-C
220K
R403
To NAAF-8708(2/2)
(SD-2 : D2)
2
Lch
GND
Rch
M_GND
R401
2.2K
27K
R437
HN3C51F-BL
R405
D401
UDZS5.6B
56K
C409
Q401A
R413
47/25
6
390K
R435
R407
BCDEFGH
R409
1
2
470
100K
C431
681
R429
47
4.7K
R427
R483
100
R433
1K
R411
R493
1.2K
3
4
123
R431
47
Q403
2SC2712-GR
2.2K
4.7K
C407
47/50
R421
5
47K
470
R423
DC OFFSET
ADJUST.
R419
RN2404
Q621
Q419
RN1441
2.2K
C411
TF-C
R481
2
120F
NC
R651
15K
R653
15K
R657
R575
R577
47K
560K
(180K)
R415
8.2K
(6.8K)
104
220K
R641
C437
C435
100/25
100/25
220
R497
R495
Q405A
5.6K
HN3A51F
R441
27K
R443
27K
R445
2SC2713
220
C585
Q411
1
2
6
1
6
2.2K
R453
Q417
HN3A51F
R417
0
331
R489
12K
2.2K
R491
C417
102F
1 2
6
4
5
HN3A51F
3
390
R451
1
2
560
R455
2
5
6
1
10K
R695
D403
1SS352
13
Q413A
TC74AC14FT
3 4
R439
Q405B
11 1012
22
R449
3
4
R459
R697
D405
1SS352
390
560
4
3
10K
C419
102F
4
3
5
HN3C51F-BL
2.2K
R457
5 6
5
Q409
Q407
HN3A51F
14
978
R583
C583
101
3.9K
C405
D411
1SS352
D407
1SS352
D413
1SS352
D409
1SS352
R581
3.9K
C581
101
221
2.2K
R585
R669
8.2K
R667
22K
TC74AC00FT
R469
0
R465
1.8K
R471
0
R467
2.7K
C423
101
C421
101
C679
9
10
1
2
4
5
Q415A
12
13
104
R580
56
C571
R564
220
3
C507
C427
14
11
7
8
3
6
3
4
5
To NAAF-8708(2/2)
(SD-2 : D4)
PRT
DCPRT
PWMCNT
NFMUTE
+12V
+5V
GND
SPBRL
SPARL
R402
2.2K
TLP283-4
Q615
Rch
C402
R482
120F
331
Q412
2SC2713
R492
Q406A
HN3A51F
5
HN3A51F
R418
0
R490
12K
2.2K
2SC2712
R636
2
1
4
3
R454
Q418B
2 1
12 13
Q614
47K
5
C418
102F
TF-C
2.2K
4.7K
R412
6
470
Q624
RN1402
DC OFFSET
ADJUST.
C408
47/50
R422
47K
R420
SPBDETRL
Q622
RN2404
Q420
RN1441
2.2K
C412
TF-C
Q623
RN1402
104
SPADETRL
R642
220K
R652
R658 15K
R576
47K
(180K)
R416
8.2K
(6.8K)
R496
C436
220
NC
R654
R578
560K
100/25
R643
100K
5.6K
R442
15K
27K
R444
27K
R446
C586
C438
100/25
220
R498
R644
68K
223
C611
1K
R484
4.7K
R410
C432
R494
1.2K
Q402
HN3C51F-BL
5
56K
R414
Q404
2SC2712-GR
C410
47/25
2.2K
R671
Q671
TLP283
2 1
390K
681
3
4
R408
R430
47
100K
R436
Q618
RN1402
470
R428
321
1
2
R424
100
R432
47
2.2K
R434
Q619
RN1402
27K
R438
C404
47/50
221
R631
R633
R672
TF-C
12
11
10
9
3
4
2
22K
R404
10K
10K
1
R634
220K
R632
2.2K
R635
Q616
RN1402
2.2K
Q617
RN1402
R673
390
D402
UDZS5.6B
Q620
RN1402
6 5
8 7
14
13
2.2K
15 16
Q674
2SA950
R630
2.2K
4
3
R406
6
4
5
3
390
R452
4 3
560
R456
2
6
1
10K
R696
1SS352
D404
10 11
Q414A
TC74AC14FT
68K
R628
12K
R629
33
R440
Q406B
HN3A51F
R450
1
2
R460
5
R698
D406
1SS352
3 4
390
2
1
6
H3C51F-BL
560
2.2K
R458
4
3
10K
C420
102F
TF-C
9 8
Q613
M51957BFP
1
NC1
NC3
2
IN
VCC
3
NC2
OUT
4
GND5C
6
Q410
Q408
HN3A51F
576
8
7
6
C610
10K
R679
R584
R582
3.9K
3.9K
R668
22K
C584
101
14
10K
R627
C615
1/50
104
C406
D412
1SS352
D408
1SS352
D414
1SS352
D410
1SS352
C582
8.2K
R670
101
221
2.2K
R586
Q416A
TC74AC00FT
R470
R472
2
3
R466
1.8K
R468
2.7K
0
0
Q673
RN1402
C422
101
TF-C
C424
Q672
1
RN2402
2
1
5
4
101
13
12
10
9
C680
104
10K
R680
P601
R579
14
3
7
6
11
8
R623
THERMISTOR
56
P602
R565
220
C428
R622
Q525 78M12
C572
3
C508
C571
Q530
R564
78L05
220
3
C507
224
C427
Q525 78M12
C572
Q529
R565
78L05
220
3
C508
224
C428
78M12
1
47/35
I
33/35
1
47/35
I
33/35
Q536
I
O
G
2
I
O
G
2
A-9555
R505
100/16
100/16
1
Q503
2SC2712
1
3 2
M1FL20U
Q504
2SC2712
D501
M1FL20U
D502
R506
4.7
C541
33
R571
C537
330/16
4.7
C542
33
R572
C538
330/16
R513
224
R501
R514
224
R502
330
D521
1SS357
560
330
R503
330
D522
1SS357
560
R516
R504
10
R521
Q545
R691
100
560
R661
R523
R515
D523
1SS357
820
R663
2SC2712-GR
10
R522
Q546
2SA1162-GR
R692
100
560
R662
Q548
2SA1162-GR
R524
330
Q548
D524
1SS357
820
2SC2712-GR
Q541
2SA1162-GR
Q515
2SA1162-GR
10
Q547
2SA1162-GR
R693
100
560
Q519
2SA1162-GR
Q542
Q516
2SA1162-GR
10
Q544
R694
100
560
R664
Q520
2SA1162-GR
NC
100
R665
C631
Q543
2SC2712
NC
100
R567
C633
C632
R666 100
Q544
2SC2712-GR
NC
C634
R568 100
6
1
Q513A
TPC6901
5
6.8
R525
R533
15
D507
3.3
R527
NC
2
3
Q513B
TPC6901
4
6
Q517A
1
TPC6901
5
R535
6.8
6.8
R529
D509
3.3
R531
NC
2
3
Q517B
TPC6901
4
6
1
Q514A
TPC6901
5
6.8
R526
R534
NC
15
D508
3.3
R528
NC
2
3
Q514B
TPC6901
4
6
Q518A
1
TPC6901
5
6.8
R530
R536
6.8
D510
3.3
R532
NC
2
3
Q518B
TPC6901
4
!
Q521
FQP34N20
!
Q523
FQP34N20
!
Q522
FQP34N20
!
Q524
FQP34N20
0.1
(2W)
R539
R601
33K
2
1
D503
M1FL20U
3
L501
22u
C539
1
D505
3 2
M1FL20U
R607
33K
0.1
(2W)
R541
0.1
(2W)
R540
R602
33K
2
1
D504
M1FL20U
3
L502
22u
C540
2
1
D506
3
M1FL20U
R608
33K
0.1
(2W)
R542
R573
C555
334/250
R591
C565
R604
R574
C556
334/250
R592
C566
C543
15K
C544
R603
4.7
471
R551
R549
4.7
471
R609
C602
4.7
471
R552
4.7
471
R610
15K
R545
100K(F)
22
153/250
100K(F)
C531
15K
C603
2SC2712-GR
103
2SA1255-Y
R546
100K(F)
22
153/250
R550
100K(F)
C532 334
15K
2SC2712-GR
C601
103
Q603
C604
Q604
103
334
Q602
103
L503
3.3u
C545
L504
C546
3.3u
C641
563
NC
C642
NC
R605
R625
R606
R626
56K
56K
Q601
2SA1255-Y
56K
56K
bus1977
563
bus1806
U01
AMPLIFIER PC BOARD
bus1977
bus1977
bus1977
UDZS5.6B
3
O
G
2
224
C553
C535
1
C429
100/6.3
C561
R517
101
150
Q501
R507
PZTA42
1.5K
R519
C563
101
150
R509
1.5K
3
O
G
2
224
C554
C536
1
C430
100/6.3
C562
R518
101
150
3 2
R508
Q502
1.5K
PZTA42
C564
R520
150
101
R510
1.5K
NAAF-8708 (1/2)
RL501
LB
LA
D511
1SS352
C589
104
L505
NCH-1537
4
D551
C606
C605
104
C547
C548
SPLDET
SPRDET
104
104
+5V
GND
2
104
4
R637
R638
R639
R640
2
R646
C511
C512
C557
NC
C558
NC
C559
NC
L506
NCH-1537
Q533
2SC2712
100/16
100/16
2SC4793
68K
5.6K
8.2K
100K
3 1
R645
0
R647
Q532
R681
NC NC
R682
1 3
C595
0
NC
102
C596
C505
47/25
C506
47/25
Q534
2SA1162
C517
18000/75
C518
18000/75
C549
102
C622
R648
102
102
C550
104
104
C621
NC
Q531
2SA1837
UDZS15B
UDZS15B
LN15XB60
C520
334/100V
LN15XB60
C522
334/100V
D612
D611
NC
R649
D515
D514
R563
R558
R557
D517
D518
D512
1SS352
C590
RL504
1SS352
RL503
1SS352
NC
R650
R562
1.5K
1.5K
820
2
134
2
134
RL502
104
1.5K
R560
R561
6.8K
C509
C510
6.8K
P501
P502
RBLB
47/63
47/63
C519
C521
SPEAKERS
A
B
A
B
To P TRANS.
T911
P503
(SD-5 : A1)
RED
RED
334/100V
To P TRANS.
T911
(SD-5 : A2)
ORANGE
334/100V
ORANGE
P504
LEFT
RIGHT
R622
D601
1SS352
D602
1SS352
2
C523
C614
4.7/50
224
C608
Q610
2SA1162-GR
560
15K
R620
47K
R619
D603
1SS352
D604
1SS352
Q609
RN1402
R617
5.6K
Q608
HN3A51F
5
341
R618
R655
5.6K
C607
82K
6.8K
R616
R614
R615
100/16
2
6
100K
NC
R613
82K
Q605B
HN3A51F
5
4
3
R612
Q607
RN1402
2
1
100K
D552
UDZS5.6B
6
R611
Q606
RN2402
47K
C527
78L05
1
47/16
Q526
O
D519
S1NB60
134
334
TF-C
C525
C524
3300/25
3
I
G
2
334
R559
0.47
(1/2W)
To P TRANS.
T911
(SD-5 : A2)
BLUE
BLUE
P505
A-9555
A
SCHEMATIC DIAGRAMS-2
PRE-AMPLIFIER SECTION
To NAAF-8711
(SD-4 : E2)
1
CD
TUNER
2
OUT
TAPE
OUT
MD
3
HDD
LINE
4
RI
P102B
-15V
+15V
R241
R242
R243
C239
R237
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
100
78
100
79
100
80
102
47
P201
R201
C201
330
101K
C202
R202
101K
330
R203
C203
330
101K
C204
R204
101K
330
R205
2.2K
101K
R221
220K
C205
R222
220K
101K
C206
R206
2.2K
P202
R207
C207
330
101K
P204
R208
R209
R210
R211
R212
R213
R214
R215
R216
R233
R234
330
2.2K
2.2K
C208
101K
R225
220K
101K
C209
R226
220K
C210
101K
C211
330
101K
C212
101K
330
C213
330
101K
C214
101K
330
C215
330
101K
C216
101K
330
NC
R235
C217C218
R236
C240
NC
R239 NC
R240
R238
0
NC
L201
C241
102
IN
IN
P203
BCDE
<Note>
NC = No mount of parts.
SD-Z : XY
Location of connected terminal in schematic diagrams.
SD-Z = Schematic diagrams-Z. X = A to H, Y = 1 to 5.
C228
C227
47/16
C229
10/16
48
46
47
FR-
FR+
47/16
+
43
44
45
42
FL-
FL+
DCL_IN
DCR_IN
DCR_OUT
Q201
NJW1157
+
39
40
41
DCL_OUT
DCCAP_SW
36
37
38
DCCAP_LS
DCCAP_LB
DCCAP_RS
DCCAP_RB
+
+
C230
10/16
50
49
VSS
VDD
L1IN
R1IN
L2IN
R2IN
L3IN
R3IN
L4IN
R4IN
L5IN
R5IN
L6IN
R6IN
L7IN
R7IN
L8IN
R8IN
L9IN
R9IN
L10IN
R10IN
L11IN
R11IN
L12IN
R12IN
NC
DGND
DATA
CLOCK
LATCH
LAIN
RAIN82CAIN83LSAIN84RSAIN85LBAIN86RBAIN87SWAIN88LBIN89RBIN90CBIN91LSBIN92RSBIN93LBBIN94RBBIN95SWBIN96GND97GND98VSS299VDD2
81
C226
47/16
34
GND35GND
+
31
32
33
REC_B2R
DCCAP_R
DCCAP_C
REC_B2L
REC_B1R
REC_B1L
REC_A3R
REC_A3L
REC_A2R
REC_A2L
REC_A1R
REC_A1L
100
+
+
47/16
C225
+
DCCAP_L
GND
GND
FIL_TR
FIL_BR
DC_R2
DC_R1
FIL_TL
FIL_BL
DC_L2
DC_L1
SWOUT
RBOUT
LBOUT
RSOUT
LSOUT
COUT
ROUT
LOUT
TCCAP
C231
10/16
U01
Q957
2SA965
C965
220/16
C963
C964
C966
30
220/16
29
28
27
26
25
24
23
22
21
20
V-
19
V+
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C232
10/16
C238
NC
C237
C236472J
C235224J
4.7/50
+
C224
C234
472J
C233
224J
+
C223
4.7/50
+
1/50
C222
NC
2SA1162
Q960
Q958 2SC2235
220K
R245
C972
10/50
C971
100/50
C970
220/25
C969
2200/25
C968
334J
C973
334J
To P TRANS T912
AMPLIFIER PC BOARD
+15V
R961
56
470
R965
1.8K
R963
Q959
2SC2712
47/25
47/25
220K
R246
2
G
R968
2
G
C967
334J
R966
3
O
I
1
3
O
I
1
D957
D958
470
78M05
22(1/2W)
78M12
D959
S1NB60
GREENGREEN
UDZS7.5B
UDZS7.5B
1.8K
R964
R962
56
D341
1SS352
RL341
Q962
Q961
R967
2.2(1/2W)
P211
C975
C976
C359
104J
220/25
220/25
2SC2712
C957
C958
-15V
NAAF-8708 (2/2)
Q951
D951 - 954 : RL1N4003
2SA1488
330
R957
Q953
C955
47/25
2SA1162
Q952
2SC3851
2SD655
2SD655
C956
R359
47/25
2.2K
R373
2.2K
104
104
R374
2.2K
330
R958
C360
104J
1SS352
D342
RL342
NC
J301
J302
C349
47/50
220K
C365
C366
220K
R362
C350
47/50
NE5532AP
D955
D956
+
+
R360
100/35
100/35
Q954
2.2K
Q349
Q350
C345
220K
R361
220K
2.2K
R955
+
UDZS15B
+
UDZS15B
2.2K
R956
C346
220/16
C341
47/50
+
R341
+
C342
47/50
3
2
R363
6
R364
5
D953
D954
C953
2200/50
bus1869
C954
2200/50
-15V +15V
R37922R380
220/16
R339
100
3
2
220K
6
220K
R342
5
R340
100
NE5532AP
Q348A
R365
1.5K
R367
R366
1.5K
R368
8
Q348B
4
D951D952
NE5532AP
8
4
Q341B
NE5532AP
1
C353
101
10K
10K
C354
101
7
C356
220/16
0.47(1/2W)
C951
C952
0.47(1/2W)
R357
22
220K
100K
R381
Q341A
1
R343
1K
R344
1K
C351
220/10
R375
R376
2.2K
220/10
R377
R378
C355
R951
R952
7
+
2.2K
+
C352
22
22
220/16
334J
334J
C343
47/50
C344
47/50
R369
+
+
47
C367
C368
R370
Q353
RN1402
R345
470
R346
470
104
104
47
R382
To P TRANS T912
P205
BROWN
BLACK
BROWN
P209
P209A
LCH_IN
RCH_IN
LCH_OUT
RCH_OUT
+15V
BGND
-15V
Q354
RN1402
Q343
R349
2SD655
470
R353
2.2K
220K
R347
R348
R358
220K
100K
220K
2SD655
Q351
Q352
+15V
Q344
2SD655
2SD655
+15V
R371
R372
-15V
220K
220K
104
R354
2.2K
R350
C358
470
-15V
474J
C361
C362
104
(SD-5 : A3)
R331
22(1/2W)
R332
22(1/2W)
+12V
TONE RL
GND
MAIN IN RL
GNDD
474J
C348
AMUT
Q342
RN2402
Q345
2SD655
R355
2.2K
R351
104
GND
C363
M_GND
104
C364
R356
220K
R352
2.2K
Q346
2SD655
GNDD
105J
C357
HPMUT
Q347
RN2402
GNDD
STB
CLK
DATA
HPIN
U02
TONE CONTROL PC BOARD
C331
C347
220K
R325
R326
C302
47/50
Lch
220/16
C332
220/16
C301
47/50
105J
R305
4.7K
R303
2
+
4.7K
3
NC
R301
470
5
470
NC
R302
6
+
R304
R306
4.7K
4.7K
8
Q301A
4
Q301B
C303
1
47/50
TREBLE
TREBLE
7
C304
47/50
JL206A
HPIN
GND
HPR
HPE
HPL
C305
333J
10K
R311
R309
+
1.2K
+
R310
1.2K
R312
C306
333J
U03
(SD-1 : A2)
Rch
+5V
GND
JL206B
RI
To NAAF-8708(1/2)
+5V
GND
+12V
GND
GND
GND
PRT
DCPRT
GNDD
GNDD
RI
CLK
DATA
STB
HPIN
SPLDET
SPARL
SPADETRL
SPBRL
SPBDETRL
NFMUTE
SPRDET
HPMUT
TONE RL
AMUT
MAIN IN RL
HEADPHONE JACK
PC BOARD
JL210B
To NADIS-8709
(SD-3 : A1)
To NADIS-8709
(SD-3 : D4)
P212A
NAAF-8710
R319A50K
BASS
C307
333J
R323
1.5K
10K
10K
R313
R315
6
3.9K
R317
5
222J
C309
R320A 50K
R320B
50K
3
222J
C310
2
3.9K
R318
R324
10K
10K
10K
R314
1.5K
R316
C308
333J
R319B
50K
BASS
NAETC-8717
L882
022M
L881
022M
102J
104Z
C881
C883
L883
022M
C884
P882
104Z
4
8
C882
Q302B
Q302A
102J
C311
47/50
7
R327
220K
220K
R328
1
C312
47/50
PHONES
P881
A-9555
(SD-5 : A2)
A-9555
A
SCHEMATIC DIAGRAMS-3
MICROPROCESSOR SECTION
1
(SD-2 : E3)
To NAAF-8708(2/2)
(SD-5 : B3)
To NAPS-8714
2
U12
SPEAKER SELECTOR
PC BOARD
3
4
NADIS-8709
VOL+5V
VOLGND
+12V
RLGND
RLGND
DGND
JL210A
RLGND
RLGND
+9V
ACPOWER
POFF
JL901A
NAETC-8718
SPEAKERS
A+B B A
1k
R878
1
INPUT
SELECTOR
S802
R877
820
2
8
9
10 7
3
R848
R849
560
470
R876
470
5
6
R847
R850
330
OFF
4
S801
680
11
10
9
U05
MICROPROCESSOR PC BOARD
R881
Q802
120(1/2W)
S-812C56AUA-C3K
D821
2
I
O
G
1
104Z
C802
FLASH WRITER
P803B
R845
1.2K
1
2
13
14
6
7
P801
R844
3
5
R841
NCH-1479
3
C803
1.8K
4
18K
NC
1SR154-400
C801
100/16
R875
390
R846
1K
12
16
15
8
270
R851
L801
10/16
HS
VPP
VDD
RESET
SI
SO
GND
P803A
S803
D803
C804
1SS352
100/6.3
3.3K
R843
6.8K
R842
R837
R838
S805
LOUDNESS
D801
1SS352
D802
1SS352
MUT+5V
R834
2.7K
390
BCDE
Q804
RN1402
10K
R873
MUT+5V
UDZS5.6B
R806
D807
220
220
R856 220K
R894
1K
1K
220
220
0
150
0
1K
ACPOWER
NAETC-8719
150
R807
R808
D808
D809
Q805
VOLDN
VOLUP
AMUT
HPMUT
SPBRL
SPARL
HPIN
RI
10K
10K
1K
1K
1K
P212B
LOUDNESS
Q806
RN1402
VOL+5V
VOLGND
MAIN_IN
AMUT
PURE DIRECT
RN1402
TONE RL
MAIN_IN
NF_MUTE
R859
R858
R857
R868
R867
D806 - 815 : SEL2E10C-F
150
150
R809
R810
MD
D810
D811
TAPE
Q808
Q807
RN1402
RN1402
U07 VOLUME PC BOARD
38
7
223
C781
VOLUME
9 2
M
N16RGL20KB25M
Q815
TA7291S
IN22VCC3OUT24NC5GND6VS7OUT18VREF9IN1
1
C817
100/6.3
HPMUT
NF_MUTE
TONERL
SPRDET
SPBDETRL
SPBRL
SPADETRL
SPARL
SPLDET
To NAAF-8708(2/2)
(SD-2 : D4)
150
150
R811
R812
CD
D813
D812
TUNER
Q809
Q810
RN1402
RN1402
223
C782
R781
223
470K
C783
R782
223
HPIN
C784
STB
DATA
CLKRIDGND
R871
10K
NADIS-8712
R872
150
Q816
2SC2712-GR
PRT
DCPRT
DGND
NAETC-8713
U08
VOLUME LED PC BOARD
150
PHONO
RN1402
R783
1K
Q811
R813
D814
P782B
VOLLED
VOLAD
DGND
VOL5V
OUT2
OUT1
VOLAD
OUT2
OUT1
150
HDD
Q812
RN1402
JL781B
JL781A
P782A
VOLUME
D781
R814
D815
150
LINE
+5V
R832
C807
3.3K
R801
C805
330/6.3
STB
DATA
CLK
PRT
DCPRT
VOLAD
S804
PURE
DIRECT
1SS352
1K
0.1F
R884
D804
0
C806
R883
10K
R836
2.7K
C811
104Z
RN1407
330/6.3
NC
Q822
R821
R822
R823
R824
R825
R826
R827
C809
104Z
R828
R829
R830
R831
R833
R835
2.7K
C810
C819 101
R887
104Z
220
33K
33K
U13
D805
STANDBY LED PC BOARD
STANDBY
P802B
P802A
R805
4
3
P53/A11
P54/A12
P73/TI51/TO51
P72/TI50/TO50
R853 47K
22
C815
100/6.3
1
2
P50/A8
P51/A9
P52/A10
P47/AD7
P46/AD6
P45/AD5
P44/AD4
P43/AD3
P42/AD2
P41/AD1
P40/AD0
P67/ASTB
P66/WAIT
P65/WR
P64/RD
P75/BUZ
P74/PCL
P70/TI00/TO0
P71/TI01
47
48
0
0
R893
R892
Q814
RN2402
GP1UM281XKVF
104Z
C816
NC
R885
1
2
3
0
R854
220
U801
Q803
D817
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
D806
10K
R862
R855
1SS352
R863 10K
10K
R870
R869
R886
R866
R865
R864
R861
R860
D818
3.3K
R804
Q821
RN2402
D823
10K
104Z
R816
1K
R815
1K
11
R839
P3012P3113P3214P3315P3416P35
R840
47K
D822
UDZS5.1B
UDZS5.1B
104Z
C808
8
9
10
VSS0
VDD0
Q801
0
X801
4MHz
R891
0
7
P56/A14
P57/A15
C814
6
P55/A13
104Z
R852
5
+5V
R802
220K
R803
220K
R81810K
R819
R8201KR817
1K
17
P36
47
18
P20/SI30
47
19
P21/SO30
47
20
P21/SCK30
220
21
P23/RXD0
220
22
P24/TXD0
47
23
P25/ASCK0
24
VDD1
25
MPC780023AGC-176-8BC-A
AVSS
1K
26
P17/ANI7
1K
27
P16/ANI6
28
P15/ANI5
1K
29
P14/ANI4
30
P13/ANI3
31
P12/ANI2
32
P11/ANI1
P10/ANI034AVREF35AVDD36RESET37XT238XT139IC40X241X142VSS143P00/INTP044P01/INTP145P02/INTP246P03/INTP3/ADTRG
33
D816
C812
1/50
1SS352
RN1404
Q813
C813
A-9555
A-9555
A
SCHEMATIC DIAGRAMS-4
PHONO EQUALIZER SECTION
1
NAAF-8711
R101
1K
2
P101
GND
C131
NC
C132
NC
L
R
PHONO (MM)
3
R102
1K
4
U06
PHONO EQUEALIZER PC BOARD
56K
101K
R103
C101
56K
101K
R104
C102
C103
+
47/50
C104
+
47/50
R105
R106
BCDE
R154
22(1/2W)
R152
+15V
-15V
+15V
+15V
-15V
+15V
-15V
AGND
PHOUT_R
AGND
PHOUT_L
(SD-2 : A1)
To NAAF-8708(2/2)
P102A
R107
220K
D101
D102
220K
R108
4.7K
Q101
2SC2240BL
+
C107
22/50
DZ-5.6BSB
+
C108
22/50
DZ-5.6BSB
Q102
2SC2240BL
4.7K
R117
R118
R109
R113
22K
22K
R114
R110
3.3K
220
220
3.3K
R119
R120
6.8K
6.8K
3.3K
R111
Q115
2SC2240BL
220
R115
Q103
2SC1845
R121
R122
Q104
2SC1845
220
R116
Q116
2SC2240BL
3.3K
R112
2.2K
2.2K
820
D105, 107, 109 ,111 : 1SS133
R123
Q105
2SA992
C111
562
R131
560K
750
D103
R125
R126
D104
R124
R127
C109
1SS133
820
820
1SS133
C110
R128
Q106
2SA992
820
R157
470K
+
470/16
470/25
A-9555
+
470/16
470/25
A-9555
R158
470K
750
R132
560K
C112
562
D106, 103, 110 ,112 : 1SS133
C113
222
R133
39K
R134
39K
C114
222
R135
1.2K
R136
1.2K
R137
D111 D109 D107 D105
R139
R140
D112D110D108
D106
R138
820
Q107
2SA992
+
C115
+
C117
Q109
2SC1845
820
820
Q110
2SC1845
C118
+
C116
+
Q108
2SA992
820
22/50
22/50
22/50
22/50
2SC2235-Y
120
R141
120
R143
Q113
2SA965-Y
Q114
2SA965-Y
120
R144
120
R142
Q112
2SC2235-Y
Q111
R145
1K
R146
1K
C121
C122
222
222
C123
+
22/50
C124
+
22/50
+
C125
+
C127
+
C128
+
C126
220/50
220/50
220/50
220/50
R153
22(1/2W)
R151
22(1/2W)
-15V
22(1/2W)
A-9555
A-9555
A
SCHEMATIC DIAGRAMS-5
POWER SUPPLY
1
T911
UDC, UDT : NPT-1529D
UPP : NPT-1529P
UGT, UGR : NPT-1529G
!
To NAAF-8708(1/2)
(SD-1 : H4)
To NAAF-8708(1/2)
(SD-1 : H5)
To NAAF-8708(1/2)
(SD-1 : H4)
2
To NAAF-8708(2/2)
(SD-2 : C4)
To NAAF-8708(2/2)
(SD-2 : D1)
RED
RED
BLUE
BLUE
ORANGE
ORANGE
GREEN
GREEN
BROWN
BLACK
BROWN
T911
BCDE
NAPS-8714
U09
POWER SUPPLY PC BOARD
!
P911
NC
P910
C901
2
3 4
224/275V
NCH-3646
L901
!!
1
C902
2
3 4
224/275V
NCH-3645
!! !
L902
1
POWER
C903
224/275V
Q901
RN1404
10K
R907
!
C911
103M/275V
4
3 2
C904
104Z
Q902
2SC1740S-R
D904
RL1N4003
1
D901
1SS352
R906
RLGND
D906
RL1N4003
RL901
NRL-1P5ADC9
2.2(1/2W)
R909
22(1/2W)
U11
NAETC-8716
POWER SWITCH PC BOARD
POWER
S901
P901A
F901
UDC, UDT : 6.3A/125V
UPP : 3.15AL250V
UGT, UGR : 3.15AL250V
!
T901
UDC : NPT-1520JQ
UPP : NPT-1519GQ
UGT, UGR : NPT-1519GQ
UDT : NPT-1519JQ
D908
S1NB60-4062
+
C913
3300/16
C917
T901
!
102J
!
F901
!
4
568
C916
223J
R910
0.47(1/2W)
1
R913
P903A P903B
C906
472/250V
9
0.47(1/2W)
P901B
!
P907
C908
P904BP904A
AC INLET
W
472/250V
AC IN
UDC, UDT : 120V, 60Hz
UPP : 230 - 240V, 50Hz
UGT, UGR : 220 - 230V, 50/60Hz
P901C
!
E905
EARTH
R916
3
JL901B
RLGND
+9V
ACPOWER
POFF
(SD-3 : A2)
POFF
C918
104J
D909
S-80127CN
4
3
UDZS5.1B
Q907
OUT
NC
VDD
VSS
VSS
2
To NADIS-8709
CAUTION
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
VA
AND RATING INDICATED.
ATTENTION
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
4
D'INCENDIE, REMPLACER UNIQUEMENT
VA
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL.
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
E LENT.POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
18K
104J
R918
27K
R917
33K
+
C920
2.2/50
NOTE
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL).
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
<Note>
NC = No mount of parts.
SD-Z : XY
Location of connected terminal in schematic diagrams.
SD-Z = Schematic diagrams-Z. X = A to H, Y = 1 to 5.
5
1
C919
D910
D911
1SS352
1SS352
!
A-9555
A-9555
PACKING PROCEDURE
A095
A098
A751
A095
A752
A805
A806
A952
A953
A954
A961
A955
A962
A956
A963
P912
Right side
marking
Front side
marking
R
A091
(OUTER)
Left side
marking
Front side
marking
Front side
L
A092
(L & R)
A101
A090
(INNER)
x 2 pcs.
A095
Front side
A801
A702
A096
A710
A-9555(S)
A-9555(S)
Front side
A710
A-9555(S)
A096
A702
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