2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
1
D
C
B
G
F
E
J
I
H
M
L
K
P
O
N
S
R
Q
V
U
T
Y
Z
X
W
A
41
MAIN 1/2
A-U670/A-670/A-U671/NS-BP401/NS-BP301
SCHEMATIC DIAGRAMS
★
Components having special characteristics are marked
⚠
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
● ⚠印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
パーツリストに記載されている部品を使用してください。
● 本回路図は標準回路図です。改良のため予告なく変更することがあります。
OUT L
DIGITAL IN
HP OUT
MIX IN
ANALOG IN
1K
10K
S E L 6 9 1 0 A - C D
S E L 6 9 1 0 A - C D
30K
1 5 U H
47K
22/10
0 . 0 1 ( B )
B D 9 8 7 6 A E F J - E 2
47K
22/10
6 8 0 0 P ( B )
1 0 K
10/35
R B 0 5 1 L - 4 0
120K
0
0.1/16
0 . 1 / 1 6
47
10/6.3
0.1/16
B L M 2 1 P G 6 0 0 S N 1 D
M I N I S M D C 0 5 0 - 0 2
0.1/50
5 6 0
5 6 0
SAN-PH
RPM7238-H4R
REMARKS
CAPACITOR
PARTS NAME
NO
NO
MARK
MARK
ELECTROLYTIC
CAPACITOR
CERAMIC CAPACITOR
POLYESTER FILM CAPACITOR
POLYSTYRENE FILM CAPACITOR
MICA CAPACITOR
POLYPROPYLENE
FILM CAPACITOR
SEMICONDUCTIVE CERAMIC CAPACITOR
P
TANTALUM
CAPACITOR
TUBULAR
S
CAPACITOR
CERAMIC
FILM
SULFIDE
POLYPHENYLENE
CAPACITOR
RESISTOR
REMARKS
NO MARK
PARTS
NAME
CARBON
CARBON
METAL
METAL
METAL
FIRE
CEMENT
SEMI
FILM RESISTOR
FILM RESISTOR
OXIDE FILM RESISTOR
FILM RESISTOR
PLATE RESISTOR
PROOF CARBON FILM RESISTOR
MOLDED RESISTOR
VARIABLE
RESISTOR
(P=5)
(P=10)
CHIP RESISTOR
N O T I C E
U.S.A
G
CANADA
EUROPE
L
CHINA
AUSTRALIA
SINGAPORE
KOREA
GENERAL
U
C
T
A
K
R
JAPAN
(model)
B
BRITISH
J
SOUTH EUROPE
E
V
TAIWAN
F
RUSSIAN
P
LATIN AMERICA
S
BRAZIL
H
THAI
MIN
1
2
3
4
MIN
1
2
3
4
S
F
S
F
S
F
SF
MIN
1
2
3
4
S
F
S
F
P
P
P
P
P
P
P
P
P
P
P
P
+ B
Q 3 1 1
A 1 0 3 7 A K ( Q / R / S )
R357
5.6K
D G N D
P W R _ D E T
A M P _ G N D
I C 3 0 9
I R 4 3 0 2 M T R P B F
C L I P
C O M P 2
I N - 2
I N + 2
G N D
V S S
V A A
I N + 1
I N - 1
C O M P 1
C S D
F A U L T
C
N3
C
C
V4
M
O
C5
CSH1
1
B
V7
VS1
V S 1
V N 1
V S 2
V N 2
VS2
VB2
CSH2
COM
VP2
NC
NC
VP1
+ 1 0 V
- 1 0 V
- B
+ 5 V
L306
BLM21PG600SN1D
D G N D
C 3 1 0
0 . 1 / 1 6
L 3 0 7
1 0 U H
C316
10/16
D306
UDZV7.5B
+ 7 A
BD9328FJ
BST
VIN
SW
GND
FB
COMP
EN
SS
G
R301
100K
R302
100K
A G N D
C312
1000P
C313
1000P
IN_A1
IN_A2
IN_A3
IN_A4
GND
NFB_A
NC
OUT_A
VREF
DT
CLK
CE
GND
TRBL_A
BSS_A1
BSS_A2
BSS_B2
BSS_B1
TRBL_B
GND
VEE
VDD
ADR0
ADR1
OUT_B
NC
NFB_B
GND
IN_B4
IN_B3
IN_B2
IN_B1
C327
100/16
C328
100/16
L 3 1 5
B L M 1 8 B D 6 0 1 S N 1 D
A G N D
R 4 7 4
1 / 2 P 1 0 0
R 4 2 5
2 2 K
C 3 9 7
3 3 0 0 P ( B )
R 4 3 4
6 . 2 K
R 4 4 8
6 . 8 K
C 4 1 1
1 0 0 P ( S L )
Q 3 3 0
D 2 7 0 4 ( K )
Q 3 3 1
D 2 7 0 4 ( K )
C432
0.22/16
C 4 1 6
1 0 / 3 5
C 4 3 1
1 0 / 3 5
R470
47K
R 4 6 2
4 7 0
R 4 5 3
4 7 0
R449
47K
A G N D
C401
100/16
C402
100/16
C336
4.7/50
C335
4.7/50
R326 4.7K
R327 4.7K
C329 10/25
C400 22/35
R 4 3 0
4 . 7
C 3 9 1
1 0 / 1 6
Q 3 1 6
D 2 7 0 4 ( K )
Q 3 1 7
D 2 7 0 4 ( K )
R428
47K
Q 3 2 4
D 2 7 0 4 ( K )
Q 3 2 5
D 2 7 0 4 ( K )
R429
47K
SW1
P W R _ O N
+ 3 . 3 M
C364
22/6.3
+ 3 . 3 M
Q 3 1 3
C 2 4 1 2 K ( Q / R / S )
R 3 1 1 6 N 2 7 1 A - T R - F
O U T
V D D
G N D
4 N C
5 C D
C360 1000P(B)
R318
100K
C318
22/6.3
Q304
K R A 3 0 4 - R T K / P
C 3 2 4
0 . 1 / 1 6
L 3 0 3
B L M 1 8 B D 6 0 1 S N 1 D
L 3 0 5
B L M 1 8 B D 6 0 1 S N 1 D
L 3 0 4
B L M 1 8 B D 6 0 1 S N 1 D
C304
1000P(B)
C303
1000P(B)
D G N D
+ 3 . 3 M
R316 100K
R317 100K
+ 3 . 3 S
C 3 7 1
1 0 / 1 6
+7A
L 3 0 9
B L M 1 8 B D 6 0 1 S N 1 D
-7A
L 3 0 8
B L M 1 8 B D 6 0 1 S N 1 D
Q 3 2 0
A 1 0 3 7 A K ( Q / R / S )
C381
0.01/16(B)
D G N D
R 4 3 8
4 . 7
R443
33K
R 4 4 1
4 . 7
R442
33K
R444
1.0
R445
1.0
C405
0.1U/100
C406
0.1U/100
C407
0.1U/100
C408
0.1U/100
R457
1P10
R456
1P10
C425 0.1U/100
C426 0.1U/100
R464
2.2K
R465
2.2K
C388
0.1U/100
C389
0.1U/100
D320
RF081M2STR
D321
RF081M2STR
D323
RF081M2STR
D322
RF081M2STR
R 4 0 0
n o _ u s e
C436
220P(SL)
C437
220P(SL)
C448
560P(SL)
C447
560P(SL)
C453
560P(SL)
C452
560P(SL)
C451
560P(SL)
C446
560P(SL)
C450
560P(SL)
C445
560P(SL)
C442
220P(SL)
C441
220P(SL)
C439
220P(SL)
C440
220P(SL)
C435
220P(SL)
C434
220P(SL)
R476
24
R478
24
R477
24
R479
24
C443
100P(SL)
C444
100P(SL)
C384
1000P(B)
C385
1000P(B)
Q 3 1 5
A 1 0 3 7 A K ( Q / R / S )
- 7 A
R391
100K
R373
100K
R369
100K
Q 3 1 4
C 2 4 1 2 K ( Q / R / S )
D G N D
R 3 6 3
1 0 K
R376
10K
+ B
D G N D
C 3 9 4
1 0 / 1 6
C 3 9 5
1 0 / 1 6
R 4 3 6
3 . 3 K
R 4 3 5
3 . 3 K
R 4 5 8
1 0 K
R424
100K
Q321
A1037AK(Q/R/S)
R 4 3 3
1 0 K
R455
100K
- 7 A
Q 3 2 8
C 2 4 1 2 K ( Q / R / S )
R437
100K
D G N D
C 3 9 6
1 / 2 5
C 3 6 1
n o _ u s e
C 4 1 4
1 0 / 1 6
C 4 1 8
1 0 / 1 6
C 4 1 5
1 0 / 1 6
C 4 1 7
1 0 / 1 6
R450
47K
R451
47K
R 4 6 8
4 7 K
R 4 6 9
4 7 K
C 4 3 0
1 0 P ( C H )
C 4 2 9
1 0 P ( C H )
C423
100P(SL)
C422
100P(SL)
C 4 2 7
1 0 0 P ( S L )
C 4 2 8
1 0 0 P ( S L )
C413
10/16
C412
10/16
Q326
C4614(S/T)
+ 7 A
- 7 A
R446
10K
R447
10K
Q327
A1770(S/T)
R452
100K
Q 3 3 2
C 2 4 1 2 K ( Q / R / S )
Q329
A 1 0 3 7 A K ( Q / R / S )
R467
100K
R 4 6 6
1 0 K
C 4 2 4
1 / 2 5
D G N D
R473
100K
R 4 5 9
2 2 0
- 7 A
R 4 7 5
1 0 K
+ 7 A
- 7 A
C386
22/16
R 4 1 0
1 0 0 K
R 3 9 7
1 0 K
Q 3 1 9
C 2 4 1 2 K ( Q / R / S )
Q 3 1 8
A 1 0 3 7 A K ( Q / R / S )
R2
1K
R1
10K
Q 3 0 2
D T A 1 2 4 E U A
D 2
R S B 6 . 8 S
F G 1
C 5
n o _ u s e
R309
100K
R311
220
Q305
A1037AK(Q/R/S)
Q307
A1037AK(Q/R/S)
R313
4.7K
R 3 1 2
1 0 K
R319
10K
R320
10K
R 3 1 4
1 K
- 7 A
C323
10/16
C6
no_use
C 2
0 . 1 / 1 6
W2
no_use
F G 2
F G 3
CB305
PHI
H P _ M U T E
H P _ D E T
SW_MUTE
S W _ M U T E
Q308
D T C 1 1 4 E K A
L 3
B L M 1 8 B D 6 0 1 S N 1 D
L1
BLM18BD601SN1D
C11
0.01(B)
C12
0.01(B)
C13
0.01(B)
0
J1
J2
no_use
F G 4
D G N D
P W R _ O N
R 3 2 1
1 K
R368
4.7K
R362
4.7K
C 3 5 0 1/25
P W R _ D E T
L 3 0 1
B L M 1 8 B D 6 0 1 S N 1 D
L 3 0 2
B L M 1 8 B D 6 0 1 S N 1 D
R303
33K
R 1 1 5 4 H 0 0 1 C - T 1 - F
I C 3 0 2
1 V O U T
2 G N D
3 C E
N C
V D D
V299760
F301
MINISMD050-02
+ 3 . 3 S
R422
10K
R331
1K
R308 1.8K
R409
100K
R398
100K
R431
15K
R 4 0 8
1 0 K
R415
100K
A G N D
C306
1000P(B)
R304
10K
R305
100K
Q 3 0 1
C 2 4 1 2 K ( Q / R / S )
R 3 2 3
2 2
R 3 2 2
2 2
R 3 3 8
1 K
R380
33
R383
33
R 3 8 4
3 3
R 3 8 5
3 3
+ 3 . 3 M
+ 7 A
D G N D
+ 3 . 3 M
- 7 A
+ 5 V
+ 7 A
- 7 A
+ 7 A
- 7 A
N G N D 2
+ 3 . 3 S
+ 3 . 3 M
+ 3 . 3 M
+ 3 . 3 M
A M P _ G N D
R315
2.2K
C 4 4 9
0 . 0 1 ( B )
C 4 3 8
0 . 0 1 ( B )
F G 6
D G N D
C 3 0 5
0 . 0 1 ( B )
D20
RSB6.8S
I C 3 1 0
V +
8
I C 3 1 0
V -
N J M 2 9 0 4 V
3
2
N J M 2 9 0 4 V
5
6
I C 3 0 5
V +
8
I C 3 0 5
V -
4
N J M 5 5 3 2 M D - D ( T E 1
3
2
N J M 5 5 3 2 M D - D ( T E 1
5
6
I C 3 1 2
V +
8
I C 3 1 2
V -
4
B A 1 5 2 1 8 F
3
2
1
B A 1 5 2 1 8 F
5
6
R365
1K
R 3 7 0
3 3
R 3 7 1
3 3
R 3 5 8
3 3
R 3 3 6
3 3 R339
3 3
R 3 3 5
3 3
C309
0.1/16
C315
0.01(B)
C314
0.1/16
C317
0.1/16
C357
0.01(B)
C362 0.1/16
C 3 3 7
0 . 1 / 1 6
C 3 3 8
0 . 1 / 1 6
C 3 5 4
0 . 1 / 1 6
C355 0.1/16
C356
0.1/16
C374
0.01(B)
C398
0.1/16
C399
0.1/16
C421
0.01(B)
C433
0.01(B)
C 3 3 2
0 . 1 / 1 6
C 1
0 . 1 / 1 6
C 3
0 . 1 / 1 6
C 3 1 1
2 2 0 0 P ( B )
C301
0.1
C302
0.1
C365
0.1
C366
0.1
C403
0.1
C404
0.1
C363
2200P(B)
C 3 6 7 1 0 0 0 P ( B )
C 3 6 8 1 0 0 0 P ( B )
C 3 6 9
1 0 0 0 P ( B )
C378 no_use
R407 no_use
R 4 1 6
1 0 0
R 4 1 7
1 0 0
C390
1/16
C387
1/16
R 3 1 0 8 . 2 K
R 3 0 6
1 1 K
C 3 2 2 1 0 0 P ( S L )
D303
RSB6.8S
D304
RSB6.8S
R 3 5 4
1 0 K
C321
22/10
X M S _ M O S I
VBUS_ON
E P / D A C _ C L K
E P / D A C _ D A T A
Q309
n o _ u s e
Q310
n o _ u s e
Q312
D T C 1 1 4 E K A
R 3 7 2
1 K
P U R E _ S W
C 3 5 1
0 . 1
C 3 4 5
0 . 1
R349
1K
INPUT_SW
SW2
R7
R8
SW3
R9
1K
R10
10K
X M S _ M I S O
C B 3 0 4
0 6 F M N - B M T - A - T F T
W C 1 9 5 6 0
1
2
3
4
5
6
SYS_I/F
R348
1K
+ 3 . 3 S
+ 3 . 3 S
R364
100K
R377
470K
R 3 8 1
4 7 0 K
R378
1K
R382
no_use
R387
no_use
D4
SEL6910A-CD
D 7
D 8
D 9
S E L 6 9 1 0 A - C D
D10 SEL6910A-CD
D11 SEL6910A-CD
D12 SEL6910A-CD
D13 SEL6910A-CD
D14 SEL6910A-CD
D15 SEL6910A-CD
C333
0.1
C334
0.1
Q303
D1918(QR)
Z F 3 9 1 5 0
Q306
D1918(QR)
Z F 3 9 1 5 0
W5
no_use
E C 1 2 E 2 4 3 0 8 0 3
Z R 1 4 6 7 0
S W 4
M
O
C
B
A
R18
33
R19
33
R482
2.2
J313
no_use
INPUT_SW
PURE_SW
+ 5 V
R 4 8 0
1 0 K
L310
BLM21PG600SN1D
DSDx2_LED
PCMx1_LED
PCMx2_LED
PCMx4_LED
PCMx8_LED
DSDx1_LED
+ 3 . 3 M
D 6 0 8
n o _ u s e
W6
no_use
+ 3 . 3 S
R 4 8 1
1 0 K
R 4 9 6
6 8 K
R 4 9 8
6 8 K
R497
1M
SPDC_DET
R 4 9 5
1 0 K
+ 3 . 3 M
C456
0.01(B)
C454
0.01(B)
R491
1K
R492
1K
R493
1K
R494
1K
C457
0.01(B)
C458
0.01(B)
C459
0.01(B)
C460
0.01(B)
C455
100P(SL)
R488
no_use
R 4 8 4
3 3
R366
33K
+ 3 . 3 S
S P D C _ D E T
1 K
R 4 8 9
A M P _ G N D
C463
0.01(B)
C461
33/16
D G N D
C 4 6 4
1 0 / 1 6
J 3 1 5 0
J 3 1 0 0
J 3 0 9 0
C 4 6 5
0 . 0 1 ( B )
F G 5
A G N D
U D A C _ R O U T
U D A C _ L O U T
1 0 K B
V R 3
1 0 K B
V R 2
1 0 K B
V R 1
R324
100K
R325
6.8K
R329
12K
R330
18K
R333
15K
R334
12K
R 5 0 1
1 K
R 5 0 2
1 K
R 3 9 2
1 M
R 3 0 7
1 2 K
IC308
BR24G01FVM-3GTR
A 0
A 1
A 2
G N D
S D A
S C L
W P
V C C
Q323
C4614(S/T)
R432
12K
T E 3 0 1
s 0 1
2
R E D
1
B L A C K
4
R E D
3
B L C A K
5
G
P N 3 0 1
n o _ u s e
P N 3 0 2
P N 2
n o _ u s e
P N 6
n o _ u s e
P N 5
P N 4
n o _ u s e
R 5 0 5
n o _ u s e
R 5 0 6
n o _ u s e
C 4 6 6
n o _ u s e
C 4 6 7
n o _ u s e
F G 7
F G 8
A M P _ G N D
A M P _ G N D
ST1
ST304
ST303
M S J - 0 3 5 - 6 6 E - B - A
W V 2 7 9 4 0
J K 3 0 1
R507
10K
Q333
D T C 1 1 4 E K A
R367
no_use
R486
100K
R487
no_use
SYS_DET
S Y S _ D E T
P J 3 0 2
R J - 1 1 5 0 _ 0 1 - 0 5 0 0
Z C 6 5 0 0 0
H
R 3 4 5
1 K
D A C _ S T A T U S
XMS_N_RST
HP_MUTE
H P _ D E T
R 3 4 0
1 K
+ 3 . 3 S
R 3 3 7
1 0 0 K
C 3 4 0
0 . 1 / 1 6
D A C _ N _ R S T
R 4 9 0
3 3
R 4 8 5
3 3
R 5 0 3
4 . 7 K
R 4 8 3
4 . 7 K
+ 3 . 3 S
C462
0.1/16
R504
100K
CB303
VHI
D308
RB501VM-40
D309
RB501VM-40
D307
RB501VM-40
D330
RB501VM-40
D331
RB501VM-40
D 3 3 2
1 S S 3 5 2
D 1
1 S S 3 5 2
D 3 3 3
1 S S 3 5 2
D 3
1 S S 3 5 2
D 5
1 S S 3 5 2
D 6
1 S S 3 5 2
D328
1SS352
D329
1SS352
D310
1SS352
D 3 2 6
1 S S 3 5 2
D 3 2 7
1 S S 3 5 2
D 3 2 5
1 S S 3 5 2
D 3 2 4
1 S S 3 5 2
D 3 1 6
1 S S 3 5 2
D 3 0 1
1 S S 3 5 2
D 3 1 7
1 S S 3 5 2
D 3 1 8
1 S S 3 5 2
D 3 1 5
1 S S 3 5 2
D 3 0 2
1 S S 3 5 2
D 3 1 3
1 S S 3 5 2
D314
1SS352
D16
1SS352
D 3 0 5
1 S S 3 5 2
D17
1SS352
D319
1SS352
C 4 6 8
0 . 1 / 1 6
W 3 0 1
S C N - X H
W2A
3P 70MM B&B
W2B
3P 70MM B&B
Q 3 2 2
A 1 0 3 7 A K ( Q / R / S )
+ 3 . 3 M
R426
270K
R 3 9 3
1 K
W7
SAN-PH
J K 1
C 1
O P 1
L
R
G N D
O P 2
C 2
L 3 1 3
T Q R 8 0 4 8 - N 0 0 0 3 R N
1
2
3
4
L 3 1 4
T Q R 8 0 4 8 - N 0 0 0 3 R N
1
2
3
4
R359
100K
R418
1P27K
R419
1P27K
C375
no_use
C376
no_use
L 3 1 8
T Q R 8 0 4 8 - N 0 0 0 3 R N
n o _ u s e
1
2
3
4
L319
TQR8048-N0003RN
no_use
12
3
4
C469
1000P(B)
C471
1000P(B)
C470
1000P(B)
C472
1000P(B)
Q334 DTA124EUA
D G N D
Q 3 3 5
DTC114EKA
R509
10K
D G N D
+ 3 . 3 M
C476
no_use
C477
no_use
J 3 2 1
0
J 3 2 2
0
J 3 2 3
0
R406
0
R510
15
C481
1000P(B)
C 4 7 9
1 0 0 0 P ( B )
C480
1000P(B)
R499
15
C 4 7 8
1 0 0 0 P ( B )
R 4 2 3
1 5
R 5 0 8
1 5
C 3 3 9
3 3 0 P ( S L )
P J 3 0 1
1 1 7 7 - 1 0 - 0 5 0 0 A
2
1
4
3
G 3 0 2
Y Q - 3 6 - B
3
G
2
G
1
G
G 3 0 1
Y Q - 3 6 - B
3
G
2
G
1
G
CB302
FPC1.25-11L1
ZG67470
52045 11P TE
CB2
FPC1.25-11WS
52044 11P SE
CB306
FPC1.25-12L1
ZG67480
52045 12P TE
CB1
FPC1.25-12WS
52044 12P SE
C 3 4 1
2 2 / 2 5
C 3 4 2
2 2 / 2 5
C 3 4 3
2 2 / 2 5
C 3 4 4
2 2 / 2 5
R 3 3 2
1 0 0
R 3 2 8
1 0 0
R 3 4 1
1 0 0
R 3 4 2
1 0 0
R 3 4 3
3 . 9 K
R 3 4 4
3 . 9 K
R346
3.9K
R347
3.9K
R 3 5 0
3 . 9 K
R 3 5 5
3 . 9 K
R 3 5 6
3 . 9 K
R 3 5 1
3 . 9 K
R 3 6 1
1 0 0
R 3 6 0
1 0 0
R375
47K
R374
47K
R 3 9 6
1 0 0
R 5 0 0
6 . 8 K
R 3 9 4
1 0 0
R 3 9 5
1 0 0
R404
68K
R 3 9 9
6 . 8 K
R 4 0 1
6 . 8 K
R 4 1 3
1 8 0
R 4 1 4
1 8 0
R 4 1 1
6 8 K
2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 3 4 3 5 3 6
A M P _ G N D
R810
L 6 1 9
A M P _ G N D
R811
C811
C 8 0 9
I C 8 0 2
1 L X
G N D
V C
F B
S Y N C
E N
B S T
V C C
R812
C812
+5M
C 8 1 0
+B
A M P _ G N D
R 8 0 8
C808
+ 5 M _ C O N T R O L
D805
R809
A M P _ G N D
+5M_CONTROL
V O L U M E - U P
V O L U M E - D N
VOL-AD
R813
C815
VOLUME-DN
D G N D
VOLUME-UP
A M P _ G N D
+ 3 . 3 S
VOL-AD
+ 5 M
C 8 1 4
U1
V O U T
G N D
V C C
R814
C816
C817
R815
0
C392
4700/35
C393
4700/35
C 4 7 4
1 0 0 0 / 3 5
C 4 7 3
1 0 0 0 / 3 5
C 4 7 5
2 2 0 0 / 3 5
R816
10K
R817
10K
W803B
1P 250MM BLK T-T
no_use
L 6 2 0
F 3 0 2
C818
0.1/16
C819
0.1/16
W 8 0 3 A
n o _ u s e
R818
68K
W4
1P 100MM BLACK
P N 7
R471
1/4P22
R472
1/4P22
W 1 A
4 P 1 4 0 M M B & B
W 1 B
4 P 1 4 0 M M B & B
W 3 A
7 P 1 6 0 M M B & B
W 3 B
7 P 1 6 0 M M B & B
C813
C 8 2 5
1 0 0 0 P ( B )
R 3 8 8
4 7 K
R 3 8 9
4 7 K
R 4 3 9
4 7 K
R 4 4 0
4 7 K
R454
47K
R463
47K
R 4 2 7
4 . 7 K
R 4 6 0
1 5 K
R 4 6 1
1 5 K
R 4 2 0
4 3 K
R 4 2 1
4 3 K
R 4 0 2
4 7 K
R819
0
+ 1 0 V
D312
UDZV7.5B
R 3 5 3
2 7 K
R352
16K
R 3
2 7 0
R 6
5 6 0
R 5
R 4
R11
390
R12
390
R13
390
R14
390
R15
390
R16
390
D 8 0 6
1 S S 3 5 2
D 8 0 7
1 S S 3 5 2
C307
3300/25
C308
3300/25
L 3 1 6
2 2 U H
2
3
4
1
L 3 1 7
2 2 U H
2
3
4
1
C330
3300P/100
C331
3300P/100
C373
3300P/100
C346
100P/630
C347
100P/630
C 3 4 8
1 0 0 P / 6 3 0
C 3 4 9
1 0 0 P / 6 3 0
C377
2200P/100
C 3 7 9
2 2 0 0 P / 1 0 0
C 3 8 0
2 2 0 0 P / 1 0 0
C 3 8 2
2 2 0 0 P / 1 0 0
C 3 8 3
2 2 0 0 P / 1 0 0
C352
100/16
C353
100/16
C325
100/16
C326
100/16
C 3 1 9
1 0 / 1 6
C 3 2 0
1 0 / 1 6
C 3 5 8
2 2 / 2 5
C 3 5 9
2 2 / 2 5
Q 6 0 9
D 2 7 0 4 ( K )
R 8 2 0
4 7 K
R 8 2 1
4 7 K
Q 6 1 0
D 2 7 0 4 ( K )
R 3 7 9
4 . 7 K
W802
R 4 0 5
1 . 0 K
R 4 1 2
2 2 K
D808
no_use
R824
no_use
R 8 2 5
47/25
47/25
R 8 2 6
C409
100/16
C410
100/16
TS3USB221ARSER
G N D
6 O E
9 S
V C C
+ 3 . 3 E S A
D G N D
C826
0.1/16
R827
10K
R828
10K
C 3 7 2
n o _ u s e
C 3 7 0
n o _ u s e
R 4 0 3
n o _ u s e
C829
4.7/10
A G N D
R 8 3 0
n o _ u s e
R 8 3 1
n o _ u s e
C827
2200P/100
C828
2200P/100
R829
100K
R 3 8 6
4 7 0
R 8 2 2
4 7 0
R 3 9 0
4 7 0
R 8 2 3
4 7 0
C830
no_use
D G N D
A G N D
C831
no_use
C419
0.33/100
C420
0.33/100
T O P C B P O W E R
[ V C C O N / O F F ]
- P W R _ D E T -
1 0 A
A W G # 1 6
A W G # 2 4
2 A
[
7 A O N / O F F ]
D C / D C _ B D 9 3 2 8 E F J
I r m s = 1 . 5 A
L
R
A U X I N
H P O U T
S W O U T
L c h O U T
R c h O U T
L c h O U T
R c h O U T
S P O U T
H P
L = 2 5 0 m m
T O N E
F F C
L = 2 8 0 m m
V O L U M E
P O W E R _ S W
R e f f e r e n c e : 1 - 1 0 0
TC_CE
INPUT_SW
V S S
TRB_AD
HP_MUTE
L E D _ U S B
P W R _ D E T
TC_DATA
P U R E _ S W
A M P _ S D
LED_PURE
V D D
S Y S _ D E T
BLN_AD
EP/DAC_DATA
RxD
I N S P _ M O D E
T O O L 0
T x D 0
A U D I O _ O N
D A C _ N _ R S T
SYS_I/F
XMS_N_RST
VOL_B/AD
EP/DAC_CLK
TxD
SYS_INT
N _ R S T
R x D 0
A M P _ M U T E
PS2
P W R _ O N
L E D _ A U X
TC_CLK
L E D _ P W R
R E G C
BS_AD
SW_MUTE
PS1
A M P _ P R T
VOL_A
I C 3 0 4
T X D 0
/ R E S E T
I C 3 0 4
+ 3 . 3 M
T O O L 0
G N D
- R E S E T -
R X D 0
(47K-47K)
[ + 3 . 3 S O N / O F F ]
S Y S T E M C O N T R O L
R
L
GND
+ 3 . 3 M
+ 3 . 3 M
D G N D
L E D _ P W R
P W R _ O N
L E D _ P W R
P W R _ O N
D G N D
LED_PWR
PWR_ON
+3.3M
DGND
+3.3S
V O L _ B
V O L _ A
TRB_AD
BLN_AD
BS_AD
+3.3S
BLN_AD
BS_AD
TRB_AD
DGND
+3.3M
PWR_ON
LED_PWR
HP_DET
HP_DET
R
L
GND
T o 0 0 2 . s h t
A d d r e s s : 1 0 1 0 1 0 0 x
A d d r e s s : 0 x 0 0
A D J
U S B D A C b l o c k
U S B D A C b l o c k
T o 0 0 2 . s h t
- 1 5 V
M U T E
E E P R O M
V O L U M E
I m a x = 2 0 m A
VBUS_ON
DGND
LED_AUX
LED_USB
LED_PURE
LED_AUX
LED_USB
LED_PURE
I N P U T _ S W
P U R E _ S W
+5V
+27V
AMP_GND
-27V
+ 1 0 V
- 1 0 V
G N D
M O S I
M I S O
L E D _ U S B
T O N E C O N
PCMx1
PCMx2
PCMx4
PCMx8
DSDx1
DSDx2
INPUT_SW
PURE_SW
+ 5 V
L E D _ P C M x 1
L E D _ P C M x 2
L E D _ P C M x 4
L E D _ P C M x 8
L E D _ D S D x 1
L E D _ D S D x 2
+ 5 V
L E D _ P C M x 8
L E D _ D S D x 1
L E D _ D S D x 2
L E D _ P C M x 1
L E D _ P C M x 2
L E D _ P C M x 4
LED_PCMx8
L E D _ D S D x 1
L E D _ D S D x 2
LED_PCMx1
LED_PCMx2
LED_PCMx4
VOL_A/+3.3S
VOL_B/VOL_AD
VOL_B/VOL_AD
VOL_A/+3.3S
DGND
DGND
VOL_B/VOL_AD
VOL_A/REMOTE
DGND
VOL_A/REMOTE
VOL_B/VOL_AD
H P _ D E T
MODEL
SPDC_DET
S Y S _ D E T
D A C _ S T A T U S
T x D 2
R x D 2
(10K-10K)
A-670
A-U670 A-U671
VR4
SW4
L4
R17
R18
R19
R480
R489
R481
no_use
no_use
no_use BLM18BD
no_use
no_use
no_use
no_use
no_use
EC12E
RK11K
0
0
33
33
10k
1k
10k
D e s t i n a t i o n P a r t L i s t
+ - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - +
+ - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - +
| s 1 | T E 3 0 1 | W U 7 3 0 1 0 | W U 7 3 0 3 0 |
| | | M S T - 2 2 4 V D - 0 1 - 7 6 | M S T - 2 2 4 V D - 0 1 - 7 6 |
+ - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - +
U671
U670
670
R486
R487
100k
100k
100k
no_use
100k
no_use
(22K-22K)
DGND
VOL-AD
F r o m / t o M o t o r V o l u m e
VRG
VOLUME-DN
+5M
VOLUME-UP
+3.3S
| s X X | L O C | J U T A V | K B G L |
IC301
: BD9328FJ
1ch step-down DC/DC converter
IBIAS
ERR
FB
EN
BST
OUTPUT
VIN
SW
GND
OPEN
SHUTDOWN
COMP
SS
VREF
VREG
OSC
TSD
S
DRV
R
LOGIC
SLOPE
Soft Start
UVLO
VCC
5V
12V
7
5
PWM
OCP
LVS
LVS
6
8
4
3
2
1
IC802
: BD9876EFJ-E2
High efficient step down DC/DC converter with 3.0A FET
EN
1.0V
Error AMP
∑
VCC
LX
Reference
UVLO
VREF
REG
200 m
ohms
Soft
Start
ON/OFF
GND
+
-
+
FB
BST
TSD
Shutdown
10 ohms
VC
R
S
Q
Current
Comparator
VOUT
SYNC
Oscillator
300 kHz
+
-
Current
Sense
AMP
6
4
3
5
1
2
8
7
IC310
: NJM2904V
Dual operational amplifier
A OUTPUT
A-INPUT
A+INPUT
GND
B OUTPUT
B-INPUT
B+INPUT
V+
1
2
3
4
8
7
6
5
+
–
A
B
+ –
IC305
: NJM5532M-D
Dual low noise operational amplifier
A OUTPUT
A-INPUT
A+INPUT
V-
B OUTPUT
B-INPUT
B+INPUT
V+
1
2
3
4
8
7
6
5
+
–
A
B
+ –
InA1
Bias
Control Logic
IC303
: NJW1194V
2-channel electronic volume input selector and tone control
InA2
InA3
InA4
InB1
InB2
InB3
InB4
OutB
OutA
V-
V+ GND
Ach Tone Filter
ADR0
ADR1
DATA
CLOCK
LATCH
Zero Cross Detection
V-
Bch Tone Filter
TONE
TONE
IC302
: R1154H001C-T1-F
Voltage regulator
Pin No.
1
2
3
4
5
Symbol
V
OUT
GND
CE
ADJ
V
DD
Description
Output Pin for Voltage Regulator
Ground
Chip Enable Pin (active at "H")
Adjustable Output Pin for Voltage Regulator
Power Supply Pin
V
DD
CE
5
1
3
2
V
OUT
4 ADJ
GND
Vref
Short
Protection
Circuit
Current
Limit
Circuit
Thermal
Shutdown
IC307
: R3116N271A-TR-F
Voltage detector ICs
V
DD
C
D
1
2
3
5
Vref
OUT
GND
Delay
Circuit
IC803
: TS3USB221ARSER
ESD protected, high-speed USB 2.0 (480-Mbps)
1:2 multiplexer/demultiplexer switch with single enable
D−
D+ 8
7
1D−
1D+
2D−
2D+
S
OE
NAME
OE
S
D
nD
DESCRIPTION
Bus-switch enable
Select input
Bus A
Bus B
FUNCTION
Disconnect
D = 1D
D = 2D
X
H
S
OE
H
L
L
L
1
2
3
4
9
6
IC309
: IR4302MTRPBF
Class D audio amplifier
VP2
VS2
VN2
VN1
VS1
VP1
CLIP
CSH2
VB2
CSH2
VB2
IN-2
IN+2
IN+1
IN-1
COMP1
CSD
FAULT
GND
VSS
VAA
COMP2
CLIP
IN-2
IN+2
IN+1
IN-1
COMP1
OTA1
OTA2
CLIP
DET
PWM
2
DT1
DT2
UVCC
OCH1
OCH2
GD
GD
GD
G
D
S
G
D
S
G
D
S
G
D
S
GD
OTP
OCL1
OCL2
PWM
1
UV
DETECT
PROT
CTRL
CSD
FAULT
GND
VSS
LO1
VS2
HO1
LO2
VS2
HO2
VAA
COMP2
VC
C
COM
CSH1
VB1
VC
C
COM
CSH1
VB1
2
1
27
26
19
18
20
21
22
23
25
24
12
14
15
16
17
3
4
5
6
7
8
9
10
11
IC304
: R5F101GEAFB#V0
Microprocessor
TIMER ARRAY
UNIT (8ch)
SERIAL ARRAY
UNIT0 (4ch)
SERIAL ARRAY
UNIT1 (2ch)
ch0
TI00/P00
P00, P01
P10 to P17
P20 to P27
P121 to P124
P30, P31
P40, P41
P50, P51
P60 to P63
P70 to P75
TOOL0/P40
RESET
X1/P121
X2/EXCLK/P122
XT1/P123
XT2/EXCLKS/P124
REGC
SDAA0/P61(SDAA0/P13)
SCLA0/P60(SCLA0/P14)
PCLBUZ0/P140
(PCLBUZ0/P31),
PCLBUZ1/P15
RxD2/P14
INTP0/P137
INTP1/P50,
INTP2/P51
INTP5/P16
INTP6/P140
INTP3/P30,
INTP4/P31
INTP8/P74,
INTP9/P75
ANI18/P147, ANI19/P120
ANI0/P20 to
AN17/P27
P120
P130
P137
KR0/P70 to
KR5/P75
AV
REFE
/P20
AV
REFE
/P21
P140,
P146, P147
TO00/P01
TI01/TO01/P16
TI02/TO02/P17
(TI02/TO02/P15)
TI03/TO03/P31
(TI03/TO03/P14)
(TI04/TO04/P13)
(TI05/TO05/P12)
(TI06/TO06/P11)
(TI07/TO07/P10)
RTC1HZ/P30
RxD0/P11(RxD0/P16)
TxD0/P12(TxD0/P17)
RxD1/P01
TxD1/P00
SCK00/P10
SI00/P11
SO00/P12
SCK01/P75
SI01/P74
SO01/P73
SCK11/P30
SI11/P50
SO11/P51
SCL00/P10
SDA00/P11
SCL01/P75
SDA01/P74
SCL11/P30
SDA11/P50
RxD2/P14
TxD2/P13
SCK20/P15
SI20/P14
SO20/P13
SCK21/P70
SI21/P71
SO21/P72
SCL20/P15
SDA20/P14
SCL21/P70
SDA21/P71
RxD2/P14
TI07/TO07/P41
PORT 0
2
ch1
ch2
ch3
ch4
ch5
ch6
ch7
WINDOW
WATCHDOG
TIMER
UART0
UART1
CSI00
CSI01
CSI11
CSI20
CSI21
IIC00
IIC01
IIC11
IIC21
IIC20
LINSEL
UART2
12-BIT INTERVAL
TIMER
LOW-SPEED
ON-CHIP
OSCILLATOR
REAL-TIME
CLOCK
PORT 1
8
PORT 2
8
PORT 3
2
PORT 4
2
PORT 5
2
PORT 6
4
PORT 7
6
PORT 14
KEY RETURN
POWER ON RESET/
VOLTAGE
DETECTOR
RESET CONTROL
POR/LVD
CONTROL
INTERRUPT
CONTROL
ON-CHIP DEBUG
SYSTEM
CONTROL
VOLTAGE
REGULATOR
SERIAL
INTERFACE IICA0
RAM
RL78
Microprocessor
CORE
CODE FLASH MEMORY
DATA FLASH MEMORY
V
DD
V
SS
TOOL RxD/P11
TOOL TxD/P12
MULTIPLIER and
DIVIDER
MULITIPLY-
ACCUMULATOR
DIRECT MEMORY
ACCESS CONTROL
BCD
ADJUSTMENT
BUZZER OUTPUT
CLOCK OUTPUT
CONTROL
CRC
A/D CONVERTER
3
PORT 12
PORT 13
4
2
8
6
2
2
2
2
HIGH-SPEED
ON-CHIP
OSCILLATOR
IC312
: BA15218F OP AMP
Dual high slew rate, low noise
operational amplifier
–
+
+
–
1
2
3
4
8
7
6
5
OUT1
– IN1
+ IN1
GND
V
CC
OUT2
– IN2
+ IN2
1ch
2ch
IC308
: BR24G01FVM-3GTR
Serial EEPROM series standard EEPROM
7bit
8
7
6
5
4
3
2
1
SDA
SCL
WP
VCC
GND
A2
A1
A0
Address
Decoder
Word Address
Register
Data
Register
Control Circuit
High Voltage
Generating Circuit
Power Source
Voltage Detection
8bit
ACK
START
STOP
1 kbit EEPROM Array
Details of colored lines
Red / full line:
Power supply (+)
Red /dashed line: Power supply (-)
Orange: Signal
detect
Yellow: Clock
Green: Protection
detect
Brown: Reset
signal
Blue:
Panel key input
LINE IN
ANALOG IN
SPEAKERS
PHONES
L
R
Note:
Precaution for handling measuring instrument
Since the speaker output of this unit is BTL connected, the ground side of the
measuring instrument to be connected to the speaker terminal
MUST be kept in floating condition. MUST be kept in floating condition.
注意：
計測機器取り扱い上の注意
本機のスピーカー出力はBTL接続となっていますので、スピーカー端子
に接続する計測器のアース側はフローティング状態に保つ必要があります。
No replacement part available.
サービス部品供給なし
No replacement part available.
サービス部品供給なし
No replacement part available.
サービス部品供給なし
No replacement part available.
サービス部品供給なし
5 k-ohms
10 W
5 k-ohms
10 W
A-U671
A-U670/A-U671
A-U670/A-U671
A-U671
A-U670/A-U671
A-U670/A-670
A-U670/A-670
A-U670/A-U671
A-U670/A-670
A-U670/A-670
A-U670/A-U671
A-U670/A-U671
A-U671
A-U670/A-U671
R329
R330
A-U670/A-U671
A-670
no_use
47K
12K
18K
A-U671
SYSTEM
SUBWOOFER
A-U670/A-670
A-U671
to MAIN 2/2
DIGITAL
AMPLIFIER
E-VOLUME
TONE CONTROL/BALANCE
DC/DC
MICRO-
PROCESSOR
to MAIN 2/2
RESET
EEPROM
USB DAC indicators
BASS
TREBLE
BALANCE
VOLUME
PCM
DSD
MAIN (5)
A-U670/A-670
MAIN (4)
A-U670/A-U671
MAIN (3)
MAIN (2)
POWER
indicator
(Power)
MAIN (1)
MAIN (6)
Remote control
sensor
PURE DIRECT
indicator
PURE DIRECT
INPUT
LINE
indicator
USB
indicator
DC/DC
to chassis
to Power supply module
to Power supply module
Writing port
注意 )
安全対策
・ この製品の内部には高電圧部分があり危険です。修理の際は、絶縁性の手袋を使用するなどの安全対策を行ってください。
・ 下記のコンデンサには電源を OFF にした後も電荷が残り、高電圧が維持されており危険です。修理作業前に放電用抵抗（5 kΩ/10 W）
を
下記の各コンデンサの端子間に接続して放電してください。放電所用時間は各々約 30 秒間です。
MAIN (1) P.C.B. の C307、C308
Notes)
Safety measures
• Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such as wearing insulating gloves.
• Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there.
Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminals of each capacitor indicated below to discharge electricity.
The time required for discharging is about 30 seconds per each.
C307, C308 on MAIN (1) P.C.B.
