Yamaha YAS-408, Руководство по обслуживанию

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★
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。
4ohm
4ohm
8ohm
8ohm
-
+
2.
2uF
-
+
-
+
-
+
-
+
-
+
2.
2uF
YAS-CU408/YMS-4080/ATS-CU4080 AMPLIFIER SECTION
100ohm
_di
ff
FROM MAPX
FROM POWER
FROM MAIN MCU
Fsw=400KHz
0805
0603
RCH
LCH
SPI
FO
R
DEBUG
+
-
-
+
L-
ESR
(G
F
L)
L-
ESR
(G
F
L)
OPTION:
FOR AD MODE BD MODE
4.
75V
1V2
1V8 1V8
5.
5V
LD
O
=4.
75V
VDAC_
R
EF
BGAP
LD
O
LD
O
LD
O
LD
O
SM
PS
LD
O
LDO
1
NC
2
VREG
_E
N
3
SM
PS_
O
UT
4
SM
PS_
LX
5
PM
U_
VI
N
6
VREG
_O
UT_
D
IG
7
ANA_
LDO
_VI
N
8
ANA1
_DCPL
9
BSTRP_
DCPL
10
ANA2
_DCPL
11
VSS_
P
M
U
_R
EF
12
V
S
S
_P
M
U
_R
E
F
13
PM
U_
BG
_DCPL
14
SUBS_
P
M
U
15
AI
O
[1]
16
AI
O
[0]
17
VDD_
XTAL
18
XTAL_
IN
19
XTAL_
O
UT
20 MCLK_P
21 MCLK_N
22 VSS_XTAL
23
VSS_AUD
24
AUD_BG_DCPL
25 CH1_FBA
26 CH1_FBB
27
CH1_FB_GND
28 CH2_FB_GND
29 CH2_FBB
30 CH2_FBA
31
VPOS_SENSE
32 VNEG_SENSE
33 SUBS_AUD
34
DAC_REF_DCPL
35
VSS_DAC
36 PIO[8]
37
PIO[7]
38 VDD_PADS_1
39
ADDR[
1]
40
ADDR[
0]
41
PI
O
[6]
42
PI
O
[5]
43
PI
O
[4]
44
PI
O
[3]
45
PI
O
[2]
46
PI
O
[1]
47
VDD_
DI
G
48
PI
O
[0]
49
I2
S_
CLK/
DSDL
50
I2
S_
SYNC/
DSDCL
K
51
I2
S_
DI
N/
DSDR
52
SPI
_CLK
53
SPI
_CS_
N
54
I2
C_
SCL/
SPI
_M
ISO
55
I2
C_
SDA/
SPI
_M
O
SI
56
VDD_
DI
G
57
VDD_
PADS_
2
58 NC
59 DC_CAL_CTRL
60 PIO[9]/PWM
61 PIO[10]/PWM/TWI
62
PIO[11]/PWM/TWI
63 PIO[12]/PWM
64 PIO[13]/PWM
65
PIO[14]/PWM
66 PIO[15]/PWM
67 PIO[16]/PWM
68
PIO[17]/CLAMP-OUTPUT
69
PIO[18]/PROTECT-INPUT
70 NC
71 NC
72
NC
73
NC
74 NC
75 NC
76
NC
77
VSS_PADDLE
IC500
CSRA6620
1 GVDD_B
2
OTW
3
NC
4 NC
5 SD
6
PWM_A
7 RESET_AB
8 PWM_B
9
OC_ADJ
10
GND
11 AGND
12 VREG
13
M3
14 M2
15 M1
16 PWM_C
17
RESET_CD
18
PWM_D
19 NC
20
NC
21
VDD
22 GVDD_C 23 GVDD_D
24 BST_D
25 NC
26
PVDD_D
27 PVDD_D
28 OUT_D
29 GND_D
30
GND_C
31 OUT_C
32
PVDD_C
33 BST_C
34
BST_B
35 PVDD_B
36
OUT_B
37 GND_B
38 GND_A
39 OUT_A
40 PVDD_A
41 PVDD_A
42
NC
43
BST_A
44 GVDD_A
45
EPAD
46
EPAD
IC501
TAS5342LADDVR
1
2
3
4
CN500
VH-4P
C531 33nF25V
L502
10uH10A
R519
10R
C526
0.1uF
R520
10R
C522
0.1uF50V
C
528
1uF50V
C
527
0.
1uF50V
C
530
1uF50V
C
529
0.
1uF50V
EC
500
1000uF35V
C533
NC
C558
1uF63V
C559
1uF63V
C541 33nF25V
L503
10uH10A
C
555
1uF50V
C
554
0.
1uF50V
C5
57
1uF50V
C5
56
0.
1uF50V
EC
501
1000uF35V
R523
10R
R524
10R
C525
0.1uF50V
C553
0.1uF50V
C524
0.1uF50V
R522
0R
R528
3R3
C535
10nF50V
R529
3R3
C538
10nF50V
C536
1nF
C537
1nF
R526
1.5K(NC)
C5
32
22
nF
(NC)
R525 0R
R527
1.5K(NC)
C5
40
22nF(
N
C
)
R530
0R
C542 33nF25V
L504
10uH10A
C551
NC
C560
1uF63V
C561
1uF63V
C552
33nF25V
L505
10uH10A
R533
3R3
C545
10nF50V
R534
3R3
C548
10nF50V
C546
1nF
C547
1nF
R532
1.5K(NC)
C5
43
22nF(
N
C
)
R535
0R
R536
1.5K(NC)
C
550
22nF(
N
C
)
R531
0R
R521
22K
C523
0.1uF25V
R511
34K0.1%
R
512
10.
5K0.
1%
L501
2.
2uH
C
518
4.
7uF25V
C
517
1nF
C5
20
4.
7uF25V
C5
19
2.
2nF
C
514
2.
2uF10V
C5
13
2.
2uF10V
C
512
1uF25V
C
515
2.
2uF10V
C
511
0.
1uF25V
C
510
2.
2uF10V
1
2
3
4
Y500
104MHz
MP05322
C
508
12pF
L500
1uH
C507
1nF
C
509
10pF
C
506
0.
1uF25V
R5
13
10.
5K0.
1%
R510
34K0.1%
R
514
10.
5K0.
1%
R
515
10.
5K0.
1%
R509
34K0.1%
R508
34K0.1%
R506
20K1%
R507
4.02K1%
C504
1nF
C
505
2.
2uF10V
C503
0.1uF25V
C
516
0.
47uF6.
3V
R5
05
75R
C
502
33pF
C
501
33pF
C
500
33pF
R5
04
75R
R5
03
75R
R518 0R
R517
0R
C
521
0.
1uF25V
R500 10R
R501
10R
R502
10R
R+
R-
L+
L-
TP30
TP31
R5
38
10K
R5
37
10K
R5
39
NC
R5
40
NC
R
541
NC
1
2
3
4
5
CN501
FFC_1.0mm_V(NC)
MISO
MOSI
CLK
CS#
GND3
C534
NC
C539
NC
C544
NC
C549
NC
C
562
560pF
C
565
560pF
C
563
560pF
C
564
560pF
R566
2R2
R567
2R2
C566
1.5nF
C567
1.5nF
R568
2R2
R569
2R2
C568 1.5nF
C569
1.5nF
C
570
1uF25V
C5
74
22
pF
C
573
22pF
C
572
22pF
C
571
22pF
R
516
0R
C
575
0.
1uF50V
C
576
0.
1uF50V
C
577
0.
1uF50V
C5
78
0.
1u
F5
0V
PVDD_23V
[6/6]
GVDD
[6/6]
DDFA_3V3
[6/6]
AMP_OTW
[1/6]
AMP_RST
[1/6]
AMP_SD [1/6]
SDA
[1/6,2/6]
SCL
[1/6,2/6]
AMP_DIN
[2/6]
AMP_WS
[2/6]
AMP_BCK
[2/6]
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。
FULL-RANGE
(FRONT L/R)
R
R
R
L
L
L
TWEETER
TWEETER
DRIVERS
A B C D E F G H I J
1
2
3
4
5
6
7
32
YAS-408/YMS-4080/ATS-4080
MAIN 5/6
YAS-CU4080/YMS-4080/ATS-CU4080