Yamaha A-S2100 Service Manual - page 78
A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
H
I
J
K
L
M
N
A-S2100
78
FUNCTION 2/4
★ 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.
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
● ⚠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。
IN L
OUT L
+5.0
+18.2
-18.3
+21.1
-21.0
-13.3
-13.3
+13.3
+13.3
-18.3
+18.2
-18.3
+18.2
+18.1
-18.3
+18.1
-18.3
+18.1
-18.3
+18.2
-18.2
+18.2
-18.2
+18.2
-18.2
+18.2
+18.2
-18.2
-18.2
+18.2
+18.2
-18.2
-18.2
+18.2
+18.2
-18.2
-18.2
+18.1
+18.1
-18.3
-18.3
+18.1
+18.1
-18.3
-18.3
+18.1
+18.1
-18.3
-18.3
P
P
P
P
P
P
R E S I S T O R
R E M A R K S
N O M A R K
P A R T S
N A M E
C A R B O N
C A R B O N
M E T A L
M E T A L
M E T A L
F I R E
C E M E N T
S E M I
F I L M
R E S I S T O R
F I L M
R E S I S T O R
O X I D E
F I L M R E S I S T O R
F I L M
R E S I S T O R
P L A T E
R E S I S T O R
P R O O F C A R B O N
F I L M R E S I S T O R
M O L D E D
R E S I S T O R
V A R I A B L E
R E S I S T O R
( P = 5 )
( P = 1 0 )
C H I P
R E S I S T O R
P
P
P
P
P
P
P
P
R E M A R K S
C A P A C I T O R
P A R T S
N A M E
N O
N O
M A R K
M A R K
E L E C T R O L Y T I C
C A P A C I T O R
C E R A M I C
C A P A C I T O R
P O L Y E S T E R F I L M
C A P A C I T O R
P O L Y S T Y R E N E
F I L M
C A P A C I T O R
M I C A
C A P A C I T O R
P O L Y P R O P Y L E N E
F I L M
C A P A C I T O R
S E M I C O N D U C T I V E C E R A M I C C A P A C I T O R
P
T A N T A L U M
C A P A C I T O R
T U B U L A R
C A P A C I T O R
C E R A M I C
P
P
P
P
P
P
7
1
1
3
1
12
15
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
1
3
RY_TCBYP
SW_TRE
RY_TCBYP
EV_CK
EV_DT
EV_DT
EV_CK
EV_DT
EV_CK
EV_DT
EV_CK
EV_CK
EV_DT
EV_CK
EV_DT
SW_BAS
SW_BAS
SW_TRE
PRV
PSVA2
PSVA1
P S V A 1
P S V A 2
P R V
EV_LBAS
EV_LCOM
EV_LTRE
EV_RTRE
EV_RCOM
EV_RBAS
MT_N_MAIN
BALG_DET
R Y _ T C B Y P
M T _ N _ M A I N
S W _ T R E
S W _ B A S
E V _ D T
E V _ C K
E V _ L B A S
E V _ L T R E
E V _ L C O M
E V _ R C O M
B A L G _ D E T
E V _ R T R E
E V _ R B A S
B A L _ P L T Y
BAL_PLTY
E C 2 - 2 4 N U - F
R Y 7 1 2
R 9 4 1
n o _ u s e
Q 7 2 6
C 3 3 2 4 - G R , B L ( T E 8
V+
8
R 7 6 4
2 . 2 K
V+
8
Q734
K209
R991
33K
S W 7 1 1
A T E 1 D - 5 M 3 - 1 0 - Z
2
3
1
4
5
C 7 6 0
1 0 0 P / 6 3 0
V-
4
C 7 3 1
1 0 P ( C H )
Q 7 5 1
C 3 3 2 4 - G R , B L ( T E 8
C768
1/50
R788
1K
C 8 7 0
1 0 P ( C H )
C 8 2 6
1 / 5 0
C 7 7 9
1 0 0 P / 6 3 0
IC710
OP275GSR
5
6
7
R718
100
C 7 8 6
1 0 P ( C H )
R 8 2 9
2 . 2 M
C866
10/16
R 8 5 4
n o _ u s e
R778
47K
R748
no_use
R 8 0 4
2 . 2 K
R 7 4 6
0
R918
100
R960
10K
C 7 9 2
n o _ u s e
C 7 9 9
1 0 0 P / 6 3 0
C 8 2 0
1 0 P ( C H )
R752
10K
R713
no_use
R884
0
V+
8
R859
10K
R830
0
R726
1K
C 7 5 8
1 0 0 P / 6 3 0
R 8 9 8
0
R 9 5 8
4 7 K
C 7 9 5
1 0 0 0 P / 1 0 0
R983
1K
R 9 0 8
4 7 K
R 9 0 7
4 7 K
R 8 9 6
0
J712
no_use
IC712
OP275GSR
3
2
1
R 9 2 6
7 . 5 K
R 8 8 7
n o _ u s e
R946
1P680
C 8 7 4
n o _ u s e
C814
10/16
E C 2 - 2 4 N U - F
R Y 7 1 1
6
7
5
IC716
NJM2068MD-TE2
3
2
1
R861
100
R 7 8 9
7 . 5 K
R 7 9 2
0
R 8 4 8
1 2 K
R 8 6 4
1 0 0
Q748
K209
C869
10/50
R 9 5 7
5 . 1 K
R945
1K
C 7 8 5
1 0 P ( C H )
R 9 9 3
0
C 8 1 5
1 0 0 P / 6 3 0
R 7 5 1
4 7 K
IC714
OP275GSR
5
6
7
R 7 1 4
4 7 K
R868
0
R 7 5 0
4 7 K
R 9 4 2
n o _ u s e
C844
47/16
R 9 9 8
n o _ u s e
Q 7 5 8
K 2 0 9
- 1 2 D
R 7 3 6
n o _ u s e
C715
10/50
IC714
OP275GSR
3
2
1
Q 7 6 3
C 3 3 2 4 - G R , B L ( T E 8
R964
100
C 8 2 4
4 7 / 3 5
R 9 5 0
0
R 7 3 8
n o _ u s e
R 9 1 6
4 7 0
R 8 7 6
n o _ u s e
C712
no_use
R 8 7 1
2 . 2 M
R915
100
R 7 4 9
1 0 K
R 9 0 3
1 0 K
R761
10K
IC712
OP275GSR
5
6
7
R 9 5 1
1 0 0 K
C 8 4 7
1 0 P ( C H )
C841
10/16
CHASSIS1
R 7 1 5
4 7 K
C 7 8 4
1 0 P ( C H )
C718
1/50
R813
0
R753
1K
C778
10/16
Q 7 5 4
A 1 3 1 2 - G R , B L ( T E 8
R977
1P680
R 8 0 2
2 7 0
R 8 4 3
0
C 8 7 3
n o _ u s e
R 7 9 3
0
R870
10K
R 7 9 1
0
E C 2 - 2 4 N U - F
R Y 7 1 2
6
7
5
IC713
OP275GSR
3
2
1
J715
no_use
C728
10/50
C 7 2 9
1 0 P ( C H )
C804
470P/100
MG
R773
1K
V-
4
R 8 5 1
1 2 K
R965
100
C 8 2 3
1 0 0 0 P / 1 0 0
C748
470P/100
C 7 3 9
1 0 0 0 P / 1 0 0
R 7 8 1
n o _ u s e
R 7 6 7
1 0 0
C803
1/50
R 7 4 5
0
C 8 2 5
1 0 0 P / 6 3 0
R 7 3 3
1 0 0 K
R912
1.5K
R 8 4 9
2 7 K
V+
8
R 7 8 2
n o _ u s e
R774
1.5K
R 8 8 9
n o _ u s e
Q 7 2 9
A 1 3 1 2 - G R , B L ( T E 8
R725
10K
R 8 8 8
n o _ u s e
C 7 3 4
1 / 5 0
R 9 9 5
0
C 8 2 1
1 0 P ( C H )
R 9 5 6
1 0 K
R866
100
IC716
V-
4
V+
8
Q724
K209
R 7 8 0
n o _ u s e
R 8 2 1
n o _ u s e
C 8 4 8
1 0 0 / 1 6
C73
2
no_us
e
R810
100
V
+
8
IC716
NJM2068MD-TE2
5
6
7
IC716
V+
8
E C 2 - 2 4 N U - F
R Y 7 1 1
R 9 9 7
n o _ u s e
C733
no_use
CHASSIS2
R815
10K
R 8 9 7
0
C 7 5 7
1 0 P ( C H )
R 7 3 9
1 5 K
R 9 3 9
1 0 0 K
C 7 9 3
n o _ u s e
C859
1/50
V-
4
R 9 4 9
0
C769
470P/100
R865
100
IC710
OP275GSR
3
2
1
C 7 4 5
4 7 / 3 5
C 7 5 5
1 0 P ( C H )
R 9 4 8
0
C 7 1 3
1 / 5 0
R 7 4 1
1 0 0 K
R 9 8 9
1 5 K
+5S
R 9 0 2
2 . 2 K
R968
100
R754
100
R 7 6 6
1 0 0 K
C740
1/50
R 9 0 4
1 0 0
C 7 3 0
1 0 P ( C H )
R 7 9 4
0
R716
10K
R817
1.5K
V-
4
R 9 8 2
1 0 0 K
R732
1K
IC713
OP275GSR
5
6
7
C750
10/16
R 7 8 3
4 7 0
R 9 8 8
n o _ u s e
R 8 8 6
2 . 2 M
Q 7 3 3
K 2 0 9
R 7 3 7
n o _ u s e
C 8 4 6
1 0 P ( C H )
R953
100
E C 2 - 2 4 N U - F
R Y 7 1 1
3
2
4
C 7 5 9
1 0 0 0 P / 1 0 0
R969
100
R 9 8 7
n o _ u s e
C 8 4 5
1 0 P ( C H )
R755
100
J714
no_use
R 9 9 6
1 0 0 K
C 8 2 2
1 0 P ( C H )
R 8 4 2
0
R 8 2 7
7 . 5 K
R721
100
Q759
K209
R 8 5 0
2 7 K
R 9 7 5
1 0 0 K
R742
33K
R 8 8 0
n o _ u s e
R 9 4 7
0
R 9 0 0
2 7 0
R 7 1 1
1 0 K
R 8 6 3
2 . 2 K
Q 7 3 6
C 3 3 2 4 - G R , B L ( T E 8
R961
33K
IC711
OP275GSR
3
2
1
R 7 8 6
1 0 0 K
R 8 3 3
n o _ u s e
C856
10/50
C736
47/16
R719
100
R 7 4 4
0
R 8 3 5
n o _ u s e
R974
10K
R911
1K
R970
10K
IC711
OP275GSR
5
6
7
R874
1.5K
E C 2 - 2 4 N U - F
R Y 7 1 2
3
2
4
IC715
OP275GSR
3
2
1
C 7 5 6
1 0 P ( C H )
R 9 5 9
4 7 K
Q 7 2 3
K 2 0 9
R925
1K
C H A S S I S 3
J713
no_use
R 8 0 7
1 0 0
R 8 4 1
0
C 7 6 4
4 7 / 3 5
R809
100
R811
100
CB713
PHI
IC715
OP275GSR
5
6
7
V-
4
R 7 2 0
1 5 K
R 7 5 6
4 7 0
R 8 8 2
7 . 5 K
R976
1K
R717
33K
R952
10K
R 8 4 0
0
R955
5.1K
C829
47/16
R 8 5 3
n o _ u s e
J711
no_use
Q 7 4 7
K 2 0 9
R 8 2 5
n o _ u s e
R 8 5 5
1 2 K
R 8 5 8
2 7 0
R 7 7 9
1 0 0 K
C 8 5 3
1 0 0 / 1 6
R 9 2 7
1 0 0 K
C 8 7 2
1 0 P ( C H )
R 9 9 4
0
R914
100
R805
10K
Q 7 4 3
A 1 3 1 2 - G R , B L ( T E 8
R757
100
R 8 4 7
1 2 K
R765
1K
R 9 6 7
1 5 K
C827
470P/100
C833
1/50
R 9 6 2
5 . 1 K
C725
10/16
R747
no_use
R 7 6 2
2 7 0
R 7 2 7
1 0 0 K
R909
10K
R923
10K
I C 7 2 2
N J U 7 2 3 2 1
1
Z/C REFL
2
L_REF
3
OUTL
4
L_REF
5
DNC
6
L_REF
7
DNC
8
DNC
9
DNC
1 0
DNC
1 1
R_REF
1 2
DNC
1 3
R_REF
1 4
OUTR
1 5
R_REF
1 6
Z/C REFR
1 7
D_VDD
1 8
DATA
1 9
CLOCK
2 0
LATCH
2 1
D_REF
2 2
V+
2 3
INR
2 4
V+
2 5
V-
2 6
INL
2 7
V-
2 8
D_CAP
2 9
ADR
3 0
D_GND
3 1
D_GND
3 2
D_GND
Q 7 1 8
A 1 3 1 2 - G R , B L ( T E 8
R966
10K
R936
1K
C 8 3 7
1 0 0 P / 6 3 0
C 8 0 9
4 7 / 3 5
R 8 3 4
n o _ u s e
C754
47/16
R 9 4 0
n o _ u s e
C 7 4 1
1 0 0 P / 6 3 0
- 1 2 D
R954
10K
R 9 4 4
4 7 0
R 8 9 9
0
C 8 5 1
1 / 5 0
R963
5.1K
R 7 4 3
0
R 8 1 9
2 . 2 M
R 9 9 2
0
V-
4
R 9 8 6
n o _ u s e
C 8 7 1
1 0 P ( C H )
CB712
PHI
+ 5 S
M G
E V _ D T
E V _ C K
E V _ L B A S
E V _ L T R E
E V _ L C O M
E V _ R C O M
B A L G _ D E T
E V _ R T R E
E V _ R B A S
S W _ B A S
S W _ T R E
M T _ N _ M A I N
R Y _ T C B Y P
P R V
P S V A 2
P S V A 1
I C 7 2 1
N J U 7 2 3 2 1
1
Z/C REFL
2
L_REF
3
OUTL
4
L_REF
5
DNC
6
L_REF
7
DNC
8
DNC
9
DNC
1 0
DNC
1 1
R_REF
1 2
DNC
1 3
R_REF
1 4
OUTR
1 5
R_REF
1 6
Z/C REFR
1 7
D_VDD
1 8
DATA
1 9
CLOCK
2 0
LATCH
2 1
D_REF
2 2
V+
2 3
INR
2 4
V+
2 5
V-
2 6
INL
2 7
V-
2 8
D_CAP
2 9
ADR
3 0
D_GND
3 1
D_GND
3 2
D_GND
I C 7 2 0
N J U 7 2 3 2 1
1
Z/C REFL
2
L_REF
3
OUTL
4
L_REF
5
DNC
6
L_REF
7
DNC
8
DNC
9
DNC
1 0
DNC
1 1
R_REF
1 2
DNC
1 3
R_REF
1 4
OUTR
1 5
R_REF
1 6
Z/C REFR
1 7
D_VDD
1 8
DATA
1 9
CLOCK
2 0
LATCH
2 1
D_REF
2 2
V+
2 3
INR
2 4
V+
2 5
V-
2 6
INL
2 7
V-
2 8
D_CAP
2 9
ADR
3 0
D_GND
3 1
D_GND
3 2
D_GND
I C 7 1 9
N J U 7 2 3 2 1
1
Z/C REFL
2
L_REF
3
OUTL
4
L_REF
5
DNC
6
L_REF
7
DNC
8
DNC
9
DNC
1 0
DNC
1 1
R_REF
1 2
DNC
1 3
R_REF
1 4
OUTR
1 5
R_REF
1 6
Z/C REFR
1 7
D_VDD
1 8
DATA
1 9
CLOCK
2 0
LATCH
2 1
D_REF
2 2
V+
2 3
INR
2 4
V+
2 5
V-
2 6
INL
2 7
V-
2 8
D_CAP
2 9
ADR
3 0
D_GND
3 1
D_GND
3 2
D_GND
I C 7 1 8
N J U 7 2 3 2 1
1
Z/C REFL
2
L_REF
3
OUTL
4
L_REF
5
DNC
6
L_REF
7
DNC
8
DNC
9
DNC
1 0
DNC
1 1
R_REF
1 2
DNC
1 3
R_REF
1 4
OUTR
1 5
R_REF
1 6
Z/C REFR
1 7
D_VDD
1 8
DATA
1 9
CLOCK
2 0
LATCH
2 1
D_REF
2 2
V+
2 3
INR
2 4
V+
2 5
V-
2 6
INL
2 7
V-
2 8
D_CAP
2 9
ADR
3 0
D_GND
3 1
D_GND
3 2
D_GND
I C 7 1 7
N J U 7 2 3 2 1
1
Z/C REFL
2
L_REF
3
OUTL
4
L_REF
5
DNC
6
L_REF
7
DNC
8
DNC
9
DNC
1 0
DNC
1 1
R_REF
1 2
DNC
1 3
R_REF
1 4
OUTR
1 5
R_REF
1 6
Z/C REFR
1 7
D_VDD
1 8
DATA
1 9
CLOCK
2 0
LATCH
2 1
D_REF
2 2
V+
2 3
INR
2 4
V+
2 5
V-
2 6
INL
2 7
V-
2 8
D_CAP
2 9
ADR
3 0
D_GND
3 1
D_GND
3 2
D_GND
C 8 7 5
1 0 0 P / 6 3 0
C 8 7 6
1 0 0 P / 6 3 0
C 8 7 7
1 0 0 P / 6 3 0
C 8 7 8
1 0 0 P / 6 3 0
Q 7 6 9
A 1 0 3 7 A K ( Q / R / S )
Q 7 7 0
A 1 0 3 7 A K ( Q / R / S )
R 9 9 9
1 0 0 K
R 1 1 4 6
4 7 K
R 1 1 5 1
8 2
C B 7 1 5
P H I
R 1 0 0 0
1 0 0 K
R 1 1 3 6
4 7 K
R 1 1 4 7
0
R 1 1 4 8
0
R 1 1 4 9
0
R 1 1 5 0
0
R 7 9 7
1 M
R 8 0 8
1 M
R 8 9 0
1 M
R 9 0 6
1 M
R 7 2 2
3 3 0 K
R 7 4 0
3 3 0 K
R 7 5 8
3 3 0 K
R 7 8 4
3 3 0 K
R 8 3 7
3 3 0 K
R 8 1 2
3 3 0 K
R 8 6 7
3 3 0 K
R 8 9 2
3 3 0 K
R 9 4 3
3 3 0 K
R 9 9 0
3 3 0 K
R 9 7 1
3 3 0 K
R 9 1 9
3 3 0 K
C H A S S I S 2
C 8 8 4
2 . 2 / 5 0
Q727
D2704(K)
Q728
D2704(K)
Q 7 5 0
D 2 7 0 4 ( K )
Q 7 5 2
D 2 7 0 4 ( K )
Q 7 1 9
C R 5 1 3 P
Q 7 3 0
C R 5 1 3 P
Q 7 4 4
C R 5 1 3 P
Q 7 5 5
C R 5 1 3 P
D 7 5 7
T F Z G T R 1 3 B
D 7 5 8
T F Z G T R 1 3 B
D 7 3 0
T F Z G T R 1 8 B
D 7 3 2
T F Z G T R 1 8 B
D 7 3 3
T F Z G T R 1 8 B
D 7 3 8
T F Z G T R 1 8 B
D 7 1 1
1 S S 3 5 5 V M
D 7 1 3
1 S S 3 5 5 V M
D 7 1 5
1 S S 3 5 5 V M
D 7 2 1
1 S S 3 5 5 V M
D 7 2 3
1 S S 3 5 5 V M
D 7 2 5
1 S S 3 5 5 V M
D 7 4 2
1 S S 3 5 5 V M
D 7 4 3
1 S S 3 5 5 V M
D 7 4 5
1 S S 3 5 5 V M
D 7 5 1
1 S S 3 5 5 V M
D 7 5 2
1 S S 3 5 5 V M
D 7 5 4
1 S S 3 5 5 V M
D 7 4 6
1 S S 3 5 5 V M
D 7 4 7
1 S S 3 5 5 V M
D 7 1 6
1 S S 3 5 5 V M
D 7 1 8
1 S S 3 5 5 V M
D 7 3 5
1 S S 3 5 5 V M
D 7 1 7
1 S S 3 5 5 V M
D 7 1 9
n o _ u s e
D 7 2 0
n o _ u s e
D 7 2 8
n o _ u s e
D 7 2 9
n o _ u s e
D 7 3 7
n o _ u s e
D 7 3 6
n o _ u s e
D 7 3 9
n o _ u s e
D 7 4 0
n o _ u s e
D 7 4 8
n o _ u s e
D 7 4 9
n o _ u s e
Q 7 1 1
A 1 0 3 7 A K ( Q / R / S )
Q 7 1 5
A 1 0 3 7 A K ( Q / R / S )
Q 7 5 3
A 1 0 3 7 A K ( Q / R / S )
Q 7 6 5
A 1 0 3 7 A K ( Q / R / S )
Q768
D 2 7 0 4 ( K )
Q766
D 2 7 0 4 ( K )
Q764
D 2 7 0 4 ( K )
Q762
D 2 7 0 4 ( K )
Q722
D 2 7 0 4 ( K )
Q716
D 2 7 0 4 ( K )
Q714
D 2 7 0 4 ( K )
Q712
D 2 7 0 4 ( K )
C719
22/16
C724
22/16
C74
2
22/1
6
C749
22/16
C770
22/16
C776
22/16
C805
22/1
6
C812
22/16
C834
22/16
C840
22/16
C860
22/16
C865
22/16
Q771
C 3 3 2 4 - G R , B L ( T E 8
R 7 9 0
4 7 0
R 8 2 8
4 7 0
R 8 8 1
4 7 0
R 9 2 4
4 7 0
Q772
C 3 3 2 4 - G R , B L ( T E 8
Q 7 7 3
C 3 3 2 4 - G R , B L ( T E 8
Q 7 7 4
C 3 3 2 4 - G R , B L ( T E 8
R 7 7 2
1 P 6 8
R 7 8 5
1 P 6 8
R 8 1 6
1 P 6 8
R 8 2 2
1 P 6 8
R 8 7 2
1 P 6 8
R 8 7 7
1 P 6 8
R 9 1 0
1 P 6 8
R 9 1 7
1 P 6 8
Q 7 6 0
A R 5 1 3 P
Q 7 4 9
A R 5 1 3 P
Q 7 3 5
A R 5 1 3 P
Q 7 2 5
A R 5 1 3 P
C 7 5 1
1 0 0 / 5 0
C 7 7 1
1 0 0 / 5 0
C 8 0 8
1 0 0 / 5 0
C 8 3 0
1 0 0 / 5 0
R 9 3 2
2 0 0
R 8 9 4
2 0 0
R 8 3 8
2 0 0
R 7 9 9
2 0 0
C895
0.1/16
C896
0.1/16
S T 7 1 1
S T 7 1 2
Q776
D2704(K)
Q777
D2704(K)
Q778
D2704(K)
Q779
D2704(K)
R 7 2 9
1 . 5 K
R734
3.3K
R723
3.3K
R1100
1K
R1101
1K
R1102
1K
R1103
1K
R 7 3 1
1 . 5 K
R 7 6 9
2 . 2 K
R 7 7 1
2 . 2 K
R776
4.7K
R759
4.7K
Q780
D2704(K)
Q781
D2704(K)
Q782
D2704(K)
Q783
D2704(K)
R1106
1K
R1107
1K
R1104
1K
R1105
1K
R921
4.7K
R937
4.7K
R 9 3 0
2 . 2 K
R 9 3 5
2 . 2 K
R972
3.3K
R984
3.3K
R 9 7 9
1 . 5 K
R 9 8 1
1 . 5 K
R 7 8 7
3 3 K
R 8 7 9
3 3 K
S W 7 1 3
A T E 1 D - 5 M 3 - 1 0 - Z
R768
47K
B A L _ P L T Y
R796
18K
R80
6
18K
R883
18K
R905
18K
Q 7 3 9
K T C 4 3 7 0 A - Y
Q 7 3 7
K T C 4 3 7 0 A - Y
Q 7 4 1
K T C 4 3 7 0 A - Y
Q 7 4 2
K T A 1 6 5 9 A
Q 7 3 8
K T A 1 6 5 9 A
Q 7 4 0
K T A 1 6 5 9 A
C797
0.047/100
C798
0.047/100
C819
0.047/100
C818
0.047/100
C782
0.047/100
C783
0.047/100
C762
0.047/100
C763
0.047/100
C 8 4 9
1 0 0 P / 6 3 0
C 8 5 4
1 0 0 P / 6 3 0
C852
100P/630
C850
100P/630
C714
0.01/100
C735
0.01/100
C761
0.01/100
C796
0.01/100
C828
0.01/100
C855
0.01/100
S T 7 1 4
C 7 9 0
1 0 0 / 3 5
C 7 8 9
1 0 0 / 3 5
C 7 2 0
1 0 0 / 3 5
C723
100/35
C 7 4 3
1 0 0 / 3 5
C747
100/35
C 7 7 2
1 0 0 / 3 5
C775
100/35
C 8 0 6
1 0 0 / 3 5
C811
100/35
C 8 3 5
1 0 0 / 3 5
C839
100/35
C 8 6 1
1 0 0 / 3 5
C864
100/35
W702
W704
W703
W701
Q713
KRC404-RTK/P
Q717
KRC404-RTK/P
Q761
KRC404-RTK/P
Q767
KRC404-RTK/P
Q11
KRC404-RTK/P
D 7 3 1
U D Z V 2 0 B
D 7 3 4
U D Z V 2 0 B
PN711
no_use
PN712
no_use
PN713
PN714
PN715
C 1 0 6 3
2 2 / 1 6
C 1 0 6 4
2 2 / 1 6
C 1 0 6 5
2 2 / 1 6
C 1 0 6 6
2 2 / 1 6
C 1 0 6 7
2 2 / 1 6
C 1 0 6 8
2 2 / 1 6
C 1 0 6 9
2 2 / 1 6
C 1 0 7 0
2 2 / 1 6
C716
10/50
C727
10/50
C765
10/50
C781
10/50
C737
10/50
C753
10/50
C800
10/50
C817
10/50
C831
10/50
C843
10/50
C857
10/50
C868
10/50
R 8 2 6
1 P 2 . 2
s 1 0 1
R 8 4 4
1 P 2 . 2
s 1 0 1
R 8 5 7
1 P 2 . 2
s 1 0 1
R 8 6 0
1 P 2 . 2
s 1 0 1
L-
L+
R-
R+
P R E O U T _ L
P R E O U T _ R
RVOL+18V
RVOL-18V
LINE2+20V
LINE2_AGND
LINE2-20V
AGND
INR+
INR-
AGND
INL+
INL-
LVOL+18V
LVOL-18V
AGND
AGND
AGND
LINE AMP
VOLUME,TONE CONTROL
SELECTOR
For POWER AMP IN
A G N D
BASS
COMMON
+5S
COMMON
BASS
AMP GAIN
1.583dB
1 . 2 8 m A
PRV
+5S
MG
PSVA2
PSVA1
+ 1 2 P R E
- 1 2 P R E
TREBLE
TREBLE
I N P U T ( 1 )
W 9 0 3
M A I N ( 2 )
1
3
W
4
0
2
B
C
I N P U T ( 2 )
C B 1 0 4
M A I N ( 3 )
F U N C ( 1 )
W904
INPUT(1)
2
3
4
5
6
7
8
9
1 0
1 1
1 2
4
5
3
2
4
5
6
3
7
2
47K
4 7 K
47K
4 7 K
4 7 K
47K
4 7 K
47K
4 7 K
47K
L-CH
R-CH
38mA
38mA
38mA
38mA
67mA
55mA
3 m A
2 0 . 5 m A
4 5 m V
4 5 m V
4 5 m V
2 0 . 5 m A
4 5 m V
20.5mA
2 0 . 5 m A
7.53V
7.41V
11.0mA
10.9mA
5.4mA
MAIN MUTE ON
1 9 . 5 m A
( 2 0 . 3 m A T C O N )
(19.8mA TC ON)
19.5mA
1 9 . 5 m A
( 1 9 . 8 m A T C O N )
19.5mA
(20.3mA TC ON)
L
A
B
L
A
B
P o l a r i t y S e l e c t
G A I N S e l e c t
1/hfe
1/hfe
1 . 3 7 V
0 . 6 2 m A
+20.6V
-20.4V
0 . 6 V
1 . 2 8 m A
2 6 m W
3 9 . 7 V
1 . 2 m A
V
7
5
.
0
V
8
7
.
0
W 9 0 6
I N P U T ( 1 )
M A I N ( 3 )
S T 1 0 1
S T 2 0 1
M A I N ( 2 )
AGND
AGND
+5S
+5S
+5S
+5S
+5S
N O T I C E
U . S . A
G
C A N A D A
E U R O P E
L
C H I N A
A U S T R A L I A
S I N G A P O R E
K O R E A
G E N E R A L
U
C
T
A
K
R
J A P A N
( m o d e l )
B
B R I T I S H
J
S O U T H E U R O P E
E
V
T A I W A N
F
R U S S I A N
P
L A T I N A M E R I C A
S
B R A Z I L
H
T H A I
D_VDD
+5V
V-
V+
Zero Cross Detection
Control Logic
D_REF
D_GND
InR
ADR
LATCH
CLOCK
DATA
IC717–722:
NJU72321
2-ch electronic volume
30-32
25,27
22,24
29
21
17
20
19
18
23
InL
26
3
14
IC710–715: OP275GSR
Dual bipolar/JFET, audio operational amplifier
OUT A
-IN A
V-
V+
OUT B
1
2
3
4
5
+IN A
-IN B
+IN B
6
7
8
IC716: NJM2068MD-TE2
Dual operational amplifier
OUT
1
OUT
2
–IN
1
+IN
1
+IN
2
-IN
2
–V
CC
+V
CC
1
2
3
4
8
7
6
5
+ –
+ –
FUNCTION (1)
INPUT
ATTENUATOR
PHASE
BYPASS
ATT.
(-6dB)
NORMAL
INV.
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
to INPUT (2)_W31
Page 76
M6
to MAIN (2)_CB204
Page 81
B8
to MAIN (1)_CB104
Page 81
B4
to MAIN (1)_ST101
Page 81
B4
to MAIN (2)_ST201
Page 81
B9
to INPUT (1)_W903
Page 75
K4
to INPUT (1)_W906
Page 75
K5
to INPUT (1)_W904
Page 75
K6