A-9355
SCHEMATIC DIAGRAMS-1
PRE-AMPLIFIER SECTION
A-9355
GND_VOL2
GND_VOL1
TREBLE
BASS
TREBLE
BASS
Lch
Rch
Lch
+7V
-7V
GND
GND
Rch
GND
HP_R
HP_L
HP_IN
D_GND
To POWER TRANS
(SD-4 : A1)
To POWER TRANS
(SD-4 : A2)
GND
GND
-7V
+7V
GND
Lch
Rch
GND
GND
Lch
Rch
GND
GND
Lch
Rch
AMUTE
RCPOWER
GND
HP_R
HP_L
HP_IN
D_GND
+12V
VOL_GND
VOL_5V
D_GND
RL_GND
Rch
Lch
AGND
Lch
Rch
Lch
Rch
RI
Rch
Lch
RI
Lch
Rch
AMUTE
RCPOWER
SEL_CLK
TONE_RL
HP_IN
D_GND
SEL_DATA
L
L
L
R
L
R
L
R
L
R
L
R
L
R
R
R
LINE/MD
OUT
TUNER
CD
IN
TAPE
OUT
PHONO
(MM)
IN
DOCK
C333
223J
R316
10K
R310
1.2K
R312
10K
R320:B
50K
7
6
5
9
C310
222J
R318
3.9K
R319:B 50K
7
9
5
6
C308
333J
C306
333J
R314
10K
R326
470
R304
4.7K
R302
NC
R308
NC
R306 4.7K
R325
470
R307 NC
R319:A
50K 3
2
1
8
R320:A
50K
3
8
1
2
C309
222J
R317
3.9K
R311
10K
R313
10K
C307
333J
C305
333J
+7V
C334
223J
R305
4.7K
R301
NC
R303
4.7K
R323
1.5K
R315
10K
R324
1.5K
R309
1.2K
R327
220K
R328
220K
C331
470/10
-7V
JL209A
11
10
9
8
7
6
5
4
3
2
1
C336
020
C332
470/10
C301
47/50
+
C302
47/50
+
C304
47/50
+
C303
47/50
+
C312
47/50
C311
47/50
Q301:A
NJM4580MD
2
3
4
1
8
Q301:B
NJM4580MD
5
6
7
C335
020
R333
2.2K
R334
2.2K
JL206B
5
4
3
2
1
P881
5
4
2
3
7
8
1
P882
C881
102J
C884
104Z
C883 104Z
L882
022M
L881
022M
L883
022M
C882
102J
R203
330
JL201A
1
2
3
4
5
6
JL206A
5
4
3
2
1
JL210B
5
4
3
2
1
JL209B
1
2
3
4
5
6
7
8
9
10
11
C355
470/10
C356
470/10
C127
470/35
+
C125
470/35
+
C929
1000/16
+
C930
1000/16
+
R927
22(1/2W)
R928
22(1/2W)
C968
470/35
C967
470/35
C962 470/35
C961 470/35
R962
22(1/4W)
R968
22(1/4W)
R967
22(1/4W)
R951
1.5(1/4W)
R952
1.5(1/4W)
R970
12K
R969
12K
C970
22/50
C969
22/50
C972
4.7/50
C971
4.7/50
R964
4.7K
R963
4.7K
R966
1.2K
R965
1.2K
C963
22/50
C964
22/50
C966
2.2/50
C965
2.2/50
R145
1K
P5003A
1
D953
RL1N4003
D952
RL1N4003
P206
1
2
3
4
C952
334J
C951
334J
D951
RL1N4003
D954
RL1N4003
C954
2200/50
+
C953
2200/50
+
-7V
Q958
2SC4793
P205
23
22
21
3
2
1
P5004B
1
R974
22(1/2W)
D959
S1NB60
C958
334J
R953
2.2(1/2W)
C955
334J
C956
334J
C975
10/50
Q962
78M05
2
G
1
I
3
O
C974
100/50
C973
220/25
Q961
78M12
2
G
1
I
3
O
C959
2200/35
P207
1
2
Q951
2SA1358
Q953
2SC2712
Q952
2SC3421
D956
UDZS15B
D955
UDZS15B
Q954
2SA1162
Q432
2SC2712
Q433
2SA1162
R454
12K
C442
100/50
+
R456
22K
R455
47K
+7V
C437
22/50
+
D341
1SS352
RL341
12
3
5
10
8
9
4
1
C359
104J
R246
220K
R245
220K
C438
22/50
+
R447
2.2K
R448
2.2K
Q353
RN1402
D958
UDZS7.5B
D957
UDZS7.5B
Q960
2SA1162
Q957
2SA1837
Q959
2SC2712
-14.5V
C109
470/50
+
C110
470/50
+
C104
4.7/50
+
C103
4.7/50
+
R106
220K
R153
22(1/2W)
C101
101K
R103
56K
R105
220K
R107
4.7K
R101
1K
C107
22/50
+
R151
22(1/2W)
Q109
2SC1845
R139
820
Q113
2SA965-Y
C121 222
C117
22/50
+
D109
1SS133
D111
1SS133
Q107
2SA992
C115 22/50
+
R137
820
R141
120
Q111
2SC2235-Y
D105
1SS133
D107
1SS133
Q103
2SC1845
Q115
2SC2240BL
Q101
2SC2240BL
C123
22/50
+
R117
22K
R125
820
D103
1SS133
R127
750
R157
470K
R131
560K
R135
1.2K
R133
39K
C113
222
R109 3.3K
R111 3.3K
R123
820
Q105
2SA992
C111
562
R115 220
R143
120
R119
6.8K
R121
2.2K
R113 220
R140
820
R158
470K
R134
39K
C114
222
C112
562
Q106
2SA992
R124
820
R112 3.3K
R110 3.3K
R108
4.7K
Q102
2SC2240BL
R114
220 R116
220
D104
1SS133
R126
820
R122
2.2K
C108
22/50
+
R118
22K
R120
6.8K
C124
22/50
+
R132
560K
Q104
2SC1845
Q116
2SC2240BL
R128
750
R136
1.2K
D110
1SS133
D108
1SS133
Q112
2SC2235-Y
R142
120
R138
820
C116
22/50
+
D106
1SS133
Q108
2SA992
R146
1K
C122
222
Q114
2SA965-Y
R144
120
C118
22/50
+
Q110
2SC1845
D112
1SS133
R102
1K
C102
101K
R104
56K
R274
0
R237
470
L7901
BLM21B222
D425
1SS355
R453
39K
JL212B
1
2
3
4
5
6
7
8
R355
2.2K
Q352
2SD655
Q351
2SD655
R378
22
C363
3.3/50
R381
220K
R372
220K
C352
220/10
+
R370
47
R377
22
R376
10K
R375
10K
R369
47
C351
220/10
+
R365
10K
C353
101
C354
101
Q348B
NJM4580MD
6
5
4
7
8
R366
10K
C350
47/50
+
R360
2.2K
Q350
2SD655
R374
10K
R362
220K
R364
220K
R368 1.5K
R367 1.5K
C349
47/50
+
R363
220K
R361
220K
C365
104
R373
10K
Q349 2SD655
R359
2.2K
R371
220K
C367 104
C368 104
C366
104
+14.5V
C134
104
C214
101K
C213
101K
C212
101K
C211
101K
R210
2.2K
R225
220K
R226
220K
R209
2.2K
R221
220K
R222
220K
C206
101K
C205
101K
R206
2.2K
R205
2.2K
P202
7
C208
101K
C207
101K
C203
101K
C204
101K
C201
101K
C202
101K
C417
223J
C415
473J
C413
474J
C418
47/50
R422
2.2K
C412
474J
C414
473J
R421
2.2K
C416
223J
P203
Q201
R2S15211FP
41
DGND
42 DATA
43 CLOCK
44
AVEE
45
INL1
46
INR1
47
INL2
48
INR2
49
INL3
50
INR3
51
INL4
52
INR4
53
INL5
54
INR5
55
INL6
56
INR6
57
INL7
58
INR7
59
INL8
60
INR8
61
RECL1
62
RECR1
63
INL9
64
INR9
65
RECL2
66
RECR2
67
RECL4
68
RECR4
69
RECL5
70
RECR5
71
RECL3
72
RECR3
73
FLIN1
74
FRIN1
75
CIN1
76
SWIN1
77
SLIN1
78
SRIN1
79
SBLIN1
80
SBRIN1
1
1-C
2
1-OUT
3
AGND
4
2-OUT
5
2-C
6
3-C
7
3-OUT
8
AGND
9
4-OUT
10
4-C
11
5-C
12
5-OUT
13
AGND
14
6-OUT
15
6-C
16
FRC
17
FROUT
18
AGND
19
FLOUT
20
FLC
21
BASSR1
22
BASSR2
23
TRER
24
AVCC
25
BASSL1
26
BASSL2
27
TREL
28
SBLN2
29
SBRN2
30
CN2
31
SWN2
32
SLN2
33
SRN2
34
FLN2
35
FRIN2
36
ADCL
37
ADCR
38
SUBR
39
SUBL
40
MONO
P204
7
C421
R424
10K
R954
1K
R423
10K
C420
C419
47/50
P201
R214
330
R213
330
R212
330
R211
330
R208
330
R207
330
R204
330
R202
330
R201
330
C210
101K
C209
101K
Q348A
NJM4580MD
3
2
1
R961
22(1/4W)
R331
22(1/2W)
R332
22(1/2W)
C133
104
C240
222
C132
104
C131
104
Q302:A
NJM4580MD
2
3
4
1
8
Q302:B
NJM4580MD
5
6
7
R971
12K
R972
12K
D101
MTZJ5.6B
D102
MTZJ5.6B
R973
0
NAAF-9280
NAAF-9259
NATRM-9260
To NACLD-9283
(SD-2 : A2)
To NACPU-9251
(SD-3 : D4)
To NACPU-9251
(SD-3 : C4)
U08
PRE-AMPLIFIER PC BOARD
U13
TONE CONTROL PC BOARD
U06
HEADPHONE JACK
PC BOARD
PHONES
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
<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.
EQ. AMP.
EQ. AMP.
SELECTOR /VOLUME
PURE DIRECT
H.P. AMP.
H.P. AMP.
A
1
2
3
4
5
B
C
D
E
F
G
H
