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B
SCHEMATIC DIAGRAMS-1
PRE-AMPLIFIER SECTION
NAAF-9280
U08
PRE-AMPLIFIER PC BOARD
EQ. AMP.
1
Rch
Q105
2SA992
R101
C103
C111
+
562
1K
4.7/50
Q101
Q115
2SC2240BL
2SC2240BL
Q103
2SC1845
2
Q104
2SC1845
Q102
Q116
2SC2240BL
2SC2240BL
C104
R102
C112
+
562
1K
4.7/50
Q106
2SA992
Lch
EQ. AMP.
P201
R
PHONO
3
(MM)
L
41 DGND
R423
R201
10K
42 DATA
R
330
43 CLOCK
44 AVEE
R424
CD
10K
45 INL1
L
R202
46 INR1
330
47 INL2
48 INR2
P202
49 INL3
R203
R
50 INR3
51 INL4
330
TUNER
52 INR4
53 INL5
SELECTOR /VOLUME
L
R204
54 INR5
55 INL6
330
56 INR6
57 INL7
R205
58 INR7
R
59 INL8
2.2K
60 INR8
OUT
61 RECL1
L
R206
62 RECR1
2.2K
63 INL9
C132
64 INR9
P203
104
4
TAPE
7
R207
R
330
IN
R208
L
330
R209
R
2.2K
OUT
L
R210
2.2K
C133
LINE/MD
P204
104
R211
R
330
IN
L
R212
330
R213
R
330
DOCK
L
R214
5
330
C134
7
104
P205
1
2
3
RI
21
L7901
R237
22
23
BLM21B222
470
C
Q951
R151
+14.5V
2SA1358
22(1/2W)
Q107
2SA992
R153
Q953
22(1/2W)
-14.5V
2SC2712
Q111
C113
2SC2235-Y
222
R133
39K
R131
R135
R145
C123
+
Rch
560K
1.2K
1K
22/50
Q954
2SA1162
R157
470K
Q109
2SC1845
Q952
2SC3421
Q957
+7V
AGND
2SA1837
Q959
2SC2712
Q110
2SC1845
R158
470K
C124
R132
R136
R146
Q960
+
Lch
2SA1162
560K
1.2K
1K
22/50
R134
39K
C114
Q112
222
2SC2235-Y
Q958
-7V
2SC4793
Q108
2SA992
R954
1K
R928
22(1/2W)
R927
24
C417
AVCC
223J
23
22(1/2W)
TRER
C415
R422
22
BASSR2
21
473J
2.2K
BASSR1
C418
20
C413
FLC
19
474J
47/50
Lch
FLOUT
18
AGND
17
Rch
FROUT
16
FRC
Q201
15
6-C
C419
14
47/50
R2S15211FP
6-OUT
13
AGND
12
5-OUT
11
5-C
10
4-C
9
4-OUT
8
AGND
7
3-OUT
6
3-C
5
2-C
4
2-OUT
3
AGND
2
1-OUT
1
1-C
A-9355
D
E
R961
22(1/4W)
R962
22(1/4W)
R967
22(1/4W)
P5003A
R968
22(1/4W)
PURE DIRECT
RL341
Rch
8
9
10
5
4
3
Lch
12
1
Q433
2SA1162
D341
R456
1SS352
C359
22K
104J
Q432
Q353
2SC2712
RN1402
C442
+
100/50
R455
47K
P5004B
D959
S1NB60
78M05
78M12
Q962
Q961
0
3
1
3
1
O
I
O
I
R973
H.P. AMP.
Lch
NJM4580MD
Q348A
C349
C351
R369
3
+
220/10
47
1
47/50
+
R373
2
C353
R375
10K
101
10K
R365
10K
R366
10K
R376
8
C354
R374
6
10K
101
10K
7
+
C350
5
+
C352
R370
Q348B
220/10
47
Q350
47/50
4
NJM4580MD
2SD655
Rch
R377
H.P. AMP.
22
R378
22
R355
2.2K
F
G
NAAF-9259
U13
R331
+7V
22(1/2W)
C331
C333
470/10
223J
R319:A
50K 3
C332
C334
C305
470/10
-7V
223J
333J
R332
R307 NC
R313
10K
22(1/2W)
R311
R317
R305
10K
3.9K
C301
47/50
R303
4.7K
2
C303
R309
C309
+
1.2K
47/50
222J
R325
4.7K
1
+
470
3
3
R301
NC
Q301:A
TREBLE
NJM4580MD
TREBLE
7
NJM4580MD
Q301:B
R302
5
C310
1.5(1/4W)
NC
7
222J
R951
1
+
6
2
C304
R310
R318
+
R326
R304
47/50
1.2K
3.9K
C302
3
R306 4.7K
470
4.7K
47/50
R312
4
10K
R308 NC
C306
333J
7
R952
1.5(1/4W)
JL209A
Rch
1
GND
2
Lch
3
GND
4
Rch
5
GND
6
Lch
7
GND
8
+7V
9
GND
10
-7V
11
Rch
1
GND
2
NOTE
Lch
3
GND
4
!
THE COMPONENTS IDENTIFIED BY MARK
ARE CRITICAL FOR SAFETY
AMUTE
5
RCPOWER
REPLACE ONLY WITH PART NUMBER SPECIFIED.
6
VOLTAGE (MEASURED WITH VOLTMETER)
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.
D_GND
5
+12V
4
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
RL_GND
3
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
VOL_GND
2
VOL_5V
1
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.
R953
SD-Z : XY
2.2(1/2W)
1
Location of connected terminal in schematic diagrams.
2
SD-Z = Schematic diagrams-Z. X = A to H, Y = 1 to 5.
NATRM-9260
U06
HEADPHONE JACK
PC BOARD
5
HP_R
5
1
HP_IN
4
GND
4
2
D_GND
L882
2
HP_L
HP_L
022M
3
3
3
PHONES
D_GND
2
4
GND
7
L881
022M
HP_IN
1
5
HP_R
8
L883
1
022M
P881
C884
104Z
RCPOWER
1
AMUTE
2
HP_IN
3
TONE_RL
4
SEL_DATA
5
SEL_CLK
6
D_GND
7
RI
8
A-9355
H
TONE CONTROL PC BOARD
BASS
GND_VOL1
1
C307
333J
R315
R323
10K
1.5K
C335
020
2
C311
R333
1
3
2.2K
47/50
R320:A
50K
1
Q302:A
NJM4580MD
NJM4580MD
5
Q302:B
R320:B
5
50K
R334
C312
7
6
2.2K
47/50
C336
020
R314
R316
10K
10K
C308
R324
1.5K
333J
BASS
5
R319:B 50K
GND_VOL2
IS DC VOLTAGE.(NO INPUT SIGNAL).
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