Yamaha NS-B20 Service Manual - page 49
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
BRX-610/NS-PZ20
55
★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
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.
SW
_
P
W
M
INT_SD_DAMP
32V
INT_OTW_DAMP
INT_SD_DAMP
DGND
DG
ND
INT_OTW_DAMP
AGND
PLL_FLTP
DG
ND
AVSS
MCU_PWM_MUTE
DG
ND
MCLK
DG
ND
AVSS
AVSS
DG
ND
VR_ANA
SCL2
SDA2
/RST_PWM
/PND_PWM
/MCU_PWM_MUTE
DGND
H_DIR_MCK
LRCK_DSP
BCK_DSP
SDTO_LR
SDTO_CSW
SDTO_SLR
/INT_OTW_DAMP
/INT_SD_DAMP
PLL_FLTM
AVDD
DC_PRT
DC_PRT
DGND
SW_MUTE2
SW_PREOUT
BIAS
SW_PWM
SW_MUTE2
SW_PREOUT
PWM_MUTE2
PWM_MUTE2
7.5V
FAN_CTRL
7.5V
7.5V
FAN_DET
7.5V
FAN_CTRL
FAN_DET
BIAS
SW_PREOUT
BIAS
SW_PHD
SW_PHD
+3.3P
D3.3V
32V
D12VA
32V
32V
D12VA
32V
D12VA
32V
D3.3V
D12VA
32V
D3.3V
32V
D12VA
D12VA
D3.3V
32V
D12VA
D12VA
D3.3V
+3.3P
D12VA
D3.3V
D3.3V
A9V
A9V
A9V
D3.3V
D3.3V
D12V
D3.3V
D12V
A9V
A9V
A9V
D12V
D12VA
FL/FR
CENTER/SL
SR/SW
FL/FR SDIN1
CH1/CH2
C/SW SDIN2 CH3/CH6
SL/R SDIN3
CH4/CH5
FRONT L
FRONT R
CENTER
SURROUND L
SURROUND R
SUBWOOFER
SW PREOUT
From Main Board
From PSU
From Main Baord
If EMC NG ,study by this filter
If EMC NG ,study by this filter
If EMC NG ,study by this filter
If EMC NG ,study by this filter
Remarks:
ECQV : Pansanic ECQV Type
Film type for sound quality
FAN CONTRL
PRODUCIBILITY PARTS
+
CE705
10uF/16v
+
R738
10K
+
CE716
470uF/50V
+
U709B
NJM3404AM_NC
5
6
7
8
4
H3
H3
R845
4.7M_NC
R791
NC
C830
0.033u/50V
C783
0.1u/16V
C743
0.1u/50V
TP
6
C856
0.1u/50V
C761
NC
C861
0.1u/16V_NC
C733
0.01(B)
C731
0.01(B)
+
CE709
470uF/50V
+
JP703
CON5
1
2
3
4
5
+
CE720
10uF/16v
+
H11
L710 BLM21PG600SN1D
+
C
E
703
100uF
/16V
+
+
CE715
10uF/16v
+
R743
22
C745
NC
R769
4.7K
Q707
2704K
2SD2704K/SMD
2
1
3
+
CE724
33uF/25V
+
C834
22P
C767
1000P/50V
R740
10K
C790
0.033u/50V
JP701
CON3 DIP2.0
1
2
3
R781
3.3
R768
4.7K
C763
0.1u/50V
L714
DAFPWL 10UH
1
1
2
2
3
3
4
4
R784
NC
R721
0/NC
C728
0.033u/50V
C766
0.1u/50V
C801
0.01(B)
R841
15K_NC
C729
1000P(B)
FB725
BLM21P
-
+
U707B
NJM2904M
-
+
5
7
6
8
4
R822
0/NC
R717
0
FB723
BLM18P
R826
100K_1%
R706
10K_NC
R757
22
T3
R820
20K_1%
R410
220
L707
ACM7076-701-2PL
1
1
2
2
3
3
4
4
C849
0.1u/50V
R829
100K_1%
TP
8
R758
10
C793
0.01(B)
U701
TAS5342L
TAS5342L1
GVDD_B
1
/OTW
2
NC
3
NC
4
/SD
5
PWM_A
6
/RESET_AB
7
PWM_B
8
OC_ADJ
9
GND
10
AGND
11
VREG
12
M3
13
M2
14
M1
15
PWM_C
16
/RESET_CD
17
PWM_D
18
NC
19
NC
20
GVDD_A
44
BST_A
43
NC
42
PVDD_A
41
PVDD_A
40
OUT_A
39
GND_A
38
GND_B
37
OUT_B
36
PVDD_B
35
BST_B
34
BST_C
33
PVDD_C
32
OUT_C
31
GND_C
30
GND_D
29
OUT_D
28
PVDD_D
27
PVDD_D
26
NC
25
BST_D
24
VDD
21
GVDD_C
22
GVDD_D
23
C770
0.1u/50V
JP704
Value = 27Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
24
23
25
26
27
C768
0.1u/50V
R759
22
C721
0.033u/50V
R739
10K
C446
100uF/16V
H8
C705
NC
+
CE704
4.7UF/50V
+
1
2
TP
7
U705B
TC7WHU04KU
6
84
2
C715
1u/35V
U706
TAS5342L
TAS5342L1
GVDD_B
1
/OTW
2
NC
3
NC
4
/SD
5
PWM_A
6
/RESET_AB
7
PWM_B
8
OC_ADJ
9
GND
10
AGND
11
VREG
12
M3
13
M2
14
M1
15
PWM_C
16
/RESET_CD
17
PWM_D
18
NC
19
NC
20
GVDD_A
44
BST_A
43
NC
42
PVDD_A
41
PVDD_A
40
OUT_A
39
GND_A
38
GND_B
37
OUT_B
36
PVDD_B
35
BST_B
34
BST_C
33
PVDD_C
32
OUT_C
31
GND_C
30
GND_D
29
OUT_D
28
PVDD_D
27
PVDD_D
26
NC
25
BST_D
24
VDD
21
GVDD_C
22
GVDD_D
23
R745
10K
C848
0.1u/16V
CB10
0.1u/50V(ECQV)
C780
22P/50V
TP
5
R709
3.3
C773
0.01(B)
C722
1000P(B)
FB705
BLM18P
R801
10
CB1
0.1u/50V(ECQV)
C775
1u/35V
C757
0.1u/50V
C796
1000P(B)
C760
NC
R7
3
1
10K
_N
C
R736
33
C847
0.033u/50V
TP12
H12
H12
C788
1u/35V
C701
0.1UF
C859
NC
R771
0
C815
150p/16V
C720
0.1u/16V
C833
1u/35V
R756
10K
C851
0.01(B)
C445
47uF/16V
L702
ACM7076-701-2PL
1
1
2
2
3
3
4
4
C703
0.1u/50V
R411
0_NC
R778
10
MARK1
C807
NC
C831
0.01(B)
H4
MTH157
1
2
3
4
5
6
7
8
9
C806
NC
U709A
NJM3404AM_NC
3
2
1
8
4
R723
3.3
C827
0.1u/50V
CB6
0.1u/50V(ECQV)
R790
470
+
-
U704B
NJM3404AM-TE1
NJM3404AM
+
-
5
6
7
8
4
L709
ACM7076-701-2PL
1
1
2
2
3
3
4
4
R716
3.3
C8
6
2
22P
/50V
R712
0
C7
5
0
1000P
(B
)
C727
0.1u/16V
C702
0.1u/50V
R836
100K_1%
R747
10K
R727
0/NC
R789
4.7K
+
CE702
470uF/50V
+
C825
0.1u/50V
C746
NC
R832
20K_1%
R776
0
C724
1u/35V
TP13
FB719
BLM18P
FB715
BLM18P
R828
100K_1%
CB14
0.47/50(ECQV)
C752
0.1u/50V
R819
3.3
C852
0.1u/16V
R793
2.2K
L712
ACM7076-701-2PL
1
1
2
2
3
3
4
4
C845
1u/35V
R840
10K_1%
FB721
BLM18P
C798
0.01(B)
C784
1000P(B)
FB701
BLM21P
C740
0.1u/50V
C838
0.033u/50V
C734
1000P(B)
T6
R794
2.2K
H13
C832
0.1u/50V
C814
0.01(B)
FB718
BLM18P
+
CE712
470uF/50V
+
CB7
0.1u/50V(ECQV)
R844
20K_NC
L711
DAFPWL 10UH
1
1
2
2
3
3
4
4
R805
4.7K
R722
10
TP
1
TP
1
C791
1000P(B)
R766
22K
+
CE714
10uF/16v
+
C737
0.1u/50V
R728
NC
R842
2.2K_NC
CB16
0.1u/50V(ECQV)
C716
0.1u/50V
-
+
U707A
NJM2904M
-
+
3
1
2
8
4
R814
0
R701
0
R838
100K_1%
C7
4
7
100uF
/25V
R774
0
C8
6
4
22P
/50V
C719
0.033u/50V
C7
3
6
1000P
(B
)
C812
0.01(B)
1u/35V
C726
MARK3
C754
0.1u/50V
C810
0.01(B)
C820
NC
R839
100K_1%
FB717
BLM18P
C840
0.033u/50V
FB714
BLM18P
C769
0.1u/50V
CB18
0.1u/50V(ECQV)
R803
10
C741
0.1u/50V
R742
0/NC
+
CE723
470uF/50V
+
C854
1000P(B)
C717
0.01(B)
C841
1000P(B)
C819
NC
R843
12K_NC
R833
1.8K_1%
L706
DAFPWL 10UH
1
1
2
2
3
3
4
4
C803
0.1u/50V
CB4
0.1u/50V(ECQV)
C821
0.1u/16V
R818
10
+ CE722
33uF/25V
+
C785
0.1u/50V
C787
0.1u/50V
R796
5.6K
R802
4.7K
C802
0.01(B)
CB13
0.1u/50V(ECQV)
C782
0.033u/50V
R837
100K_1%
C762
NC
R720
0
CB15
0.1u/50V(ECQV)
D
701
IN
4001/
N
C
R711
0
TP
4
R751
3.3
C742
0.1u/50V
CB11
0.47/50(ECQV)
C857
0.1u/50V
R744
18K
R713
22K
NC1
NC0603/SMD
R800
3.3
FB720
BLM18P
R754
22
C771
1000P(B)
C844
0.1u/50V
Q703
2SD1644DAQ_NC
1
2
3
R834
100K_1%
C744
NC
C718
1u/35V
C846
0.1u/16V
R827
100K_1%
R821
3.3
C776
0.1u/50V
C816
0.1u/50V
U705C
TC7WHU04KU
3
84
5
C786
1u/35V
T2
C822
NC
FB704
BLM18P
H9
R734
220
C779
0.01(B)
FB711
BLM18P
D26
1N4148_NC
CB17
0.47/50(ECQV)
+
-
U704A
NJM3404AM-TE1
NJM3404AM
+
-
3
2
1
8
4
L704
ACM7076-701-2PL
1
1
2
2
3
3
4
4
R782
3.3
R799
0/NC
C723
0.1u/50V
Q708
2SD1664DAQ
1
2
3
R749
10K
C795
0.01(B)
R825
NC
R788
5.6K
JP702
6x1 W/HOUSING
DIP6/W/H/P2.54
1
2
3
4
5
6
R775
0/NC
R753
22
C706
NC
C714
0.1u/50V
D702
BZT52C8V2
C813
0.01(B)
Q704
DTC124EUA
SC-70/SMD
2
13
C8
6
3
22P
/50V
R763
22
C711
1000P(B)
CB3
0.1u/50V(ECQV)
C732
0.1u/50V
L708
DAFPWL 10UH
1
1
2
2
3
3
4
4
C794
0.1u/50V
MARK2
C835
0.1u/50V
R773
3.3
C755
0.01u/50V
R730
10K_NC
H15
FB726
BLM21P_NC
+
CE717
10uF/16v
+
R792
47K
R762
0
R760
22
+
CE721
22uF/16v
+
FB707
BLM18P
FB713
BLM18P
C765
0.1u/50V
R703
100
C853
0.01(B)
FB710
BLM18P
R823
1K
R830
100K_1%
C792
0.1u/50V
R737
0
FB702
BLM21P
R748
22
C817
0.1u/50V
C843
1u/35V
R764
0
R809
0
FB727
BLM21P
R704
0/NC
C808
NC
R750
10
R755
10K
R767
22
C7
4
9
47uF
/6.
3V
+
CE701
47UF/16V
+
1
2
C753
0.01u/50V
H7
R715
0
C858
NC
R772
0
R787
4.7K
R785
15K
C751
0.1u/50V
FB703
BLM21P
+
CE710
10uF/16v
+
R708
10
U705A
TC7WHU04KU
1
84
7
C704
0.1u/50V
C828
150p/16V
Q701
DTA124EUA
2
1
3
T4
R812
0
H2
MTH157
1
2
3
4
5
6
7
8
9
FB706
BLM18P
+
CE725
10uF/16v_NC
+
R813
0/NC
R707
10K_NC
C713
0.01(B)
R725
3.3
TP
2
R726
3.3
L705
BLM18P
C855
0.1u/50V
R770
0
R807
22K
+
CE718
10uF/16v
+
C774
0.1u/50V
R811
3.3
R824
100K_1%
C860
NC
C725
0.1u/50V
C818
0.1u/50V
R714
0
R729
33
TP
1
0
H1
MTH157
1
2
3
4
5
6
7
8
9
C712
0.033u/50V
C824
0.1u/16V
C789
0.1u/16V
R808
0
TP
9
R746
22
R804
0
C756
0.1u/50V
MARK4
R780
10
R724
10
CB12
0.1u/50V(ECQV)
FB724
BLM18P
R795
15K
C759
0.1u/50V
R765
22
C811
0.01(B)
C836
0.01(B)
C778
22P/50V
R777
0/NC
R797
4.7K
J701
CON10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R702
NC
C730
0.1u/50V
Q702
2SD1644DAQ
1
2
3
CB5
0.47/50(ECQV)
+
CE713
47uF/16v
+
R710
10
C738
0.1u/50V
C739
0.1u/50V
T5
C707
NC
C797
0.01(B)
+
CE706
10uF/16v
+
TP
3
TP
1
1
C781
0.033u/50V
C826
0.1u/50V
C7
3
5
47uF
/16V
C777
1u/35V
R761
22
H6
Heatsink-MT8555/NC
1
1
2
2
C709
0.1u/50V
R779
3.3
L701
DAFPWL 10UH
1
1
2
2
3
3
4
4
C800
0.01(B)
R831
1.8K_1%
R817
3.3
L703
DAFPWL 10UH
1
1
2
2
3
3
4
4
Q705
DTC124EUA
SC-70/SMD
2
13
C850
1000P(B)
H14
+
CE708
+
R705
1.2K
C7
4
8
1000P
(B
)
+ CE719
10uF/16v
+
C758
0.1u/50V
R806
0
CB2
0.47/50V(ECQV)
R732
33
R786
470
R816
10
L713
ACM7076-701-2PL
1
1
2
2
3
3
4
4
C764
22P/50V
R735
NC
R798
4.7K
R719
0/NC
FB708
BLM18P
R810
0
C809
0.01(B)
R815
0/NC
FB712
BLM18P
T7
R835
100K_1%
C829
1000P(B)
C804
0.1u/50V
C
708
0.
1U
F
FB722
BLM18P
C710
0.1u/50V
R733
220
R752
22
R718
0
CB8
0.47/50(ECQV)
C842
0.1u/50V
+
CE707
680uF/50V
+
U703
TAS5342L
TAS5342L1
GVDD_B
1
/OTW
2
NC
3
NC
4
/SD
5
PWM_A
6
/RESET_AB
7
PWM_B
8
OC_ADJ
9
GND
10
AGND
11
VREG
12
M3
13
M2
14
M1
15
PWM_C
16
/RESET_CD
17
PWM_D
18
NC
19
NC
20
GVDD_A
44
BST_A
43
NC
42
PVDD_A
41
PVDD_A
40
OUT_A
39
GND_A
38
GND_B
37
OUT_B
36
PVDD_B
35
BST_B
34
BST_C
33
PVDD_C
32
OUT_C
31
GND_C
30
GND_D
29
OUT_D
28
PVDD_D
27
PVDD_D
26
NC
25
BST_D
24
VDD
21
GVDD_C
22
GVDD_D
23
Q706
2704K
2SD2704K/SMD
2
1
3
H5
MTH157
1
2
3
4
5
6
7
8
9
T1
H10
C839
0.1u/16V
C799
0.01(B)
CB9
0.1u/50V(ECQV)
R741
10K
+
CE711
10uF/16v
+
FB709
BLM18P
R783
0/NC
C837
1u/35V
U702
TAS5086DBT
TAS5086DBT1
VR_ANA
1
AVDD
2
AVSS
3
AVSS
4
PLL_FLTM
5
PLL_FLTP
6
AVSS
7
MCLK
8
/RESET
9
/PDN
10
DVDD
11
DVSS
12
DVSS OSC
13
OSC_RES
14
VR_OSC
15
/MUTE
16
SDA
17
SCL
18
LRCK
19
PWM_1
38
PWM_2
37
PWM_3
36
PWM_4
35
PWM_5
34
PWM_6
33
VAL ID2
32
VAL ID1
31
VR_DIG
30
DVSS
29
DVSS
28
/BKND_ERR
27
SDIN1
26
SDIN2
25
SDIN3
24
SDIN4
23
SDOUT
22
RESERVED
21
SCLK
20
FB716
BLM18P
C805
0.1u/50V
C772
0.033u/50V
C823
6800pF/16V
470uF/50V
SPEAKERS
to FAN
to PSU_CON200
to MAIN_JP1
Page 40
B4
to MAIN_JP9
Page 51
I5
AMP