A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
H
I
J
K
L
M
N
83
RX-V557/HTR-5850/DSP-AX557/RX-V457/HTR-5840/DSP-AX457
SCHEMATIC DIAGRAM (FUNCTION)
★
All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
★
Components having special characteristics are marked
s
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。
★
s
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ございます。
IC301:
BD3816K1
7-channel volume IC for 7-channel
BD3816K1
1
2
3
4
5
6
7
TREBLE
REC A
REC B
REC C
FRL select
6.1ch select
Input
select
BASS
Output
mode
select
Master
Volume
ING SW
8
9
10
80
79
11
12
13
14
15
73
22
23
24
78
77
76
75
74
16
17
18
19
20
21
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
43
42
41
49
48
47
46
45
44
72
71
70
69
68
67
66
65
25
26
27
28
29
30
31
33
34
35
36
37
38
39
40
LOGIC
32
+
+
AGND1
INA1
INA2
INB1
INB2
INC1
INC2
IND1
IND2
INE1
INE2
INF1
INF2
AGND2
INDVDFR
INDVDFL
INDVDC
INDVDSR
INDVDSL
INDVDCB
INDVDSW
AGND3
OUT1
OUT2
VINFR
GOUTFL
VINFL
AGND10
TNF1
TNF2
BNFA1
BNFB1
BNFA2
BNFB2
OUTFR
OUTFL
AGND9
OUTC
OUTSR
OUTSL
OUTCB
AGND8
OUTSW
AGND7
VINC
GOUTC
VINSR
GOUTSR
AGND13
ROUTC2
ROUTC1
ROUTB2
ROUTB1
ROUTA2
ROUTA1
AGND12
VCC
VEE
AGND11
DA
CL
MUTE
THGND
GOUTFR
AGND4
INDSPFR
INDSPFL
INDSPC
INDSPSR
INDSPSL
INDSPCB
INDSPSW
AGND5
GOUTSW
VINSW
AGND6
GOUTCB
VINCB
GOUTSL
VINSL
F-SW1
F-SW1: INPUT FUNCTION 1
F-SW2: INPUT FUNCTION 2
*
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IC302: BD3841FS
Function Switch
DGND
F-SW2
CL
DA
VEE
BIAS
VCC
RECA1
RECA2
RECB1
RECB2
RECC1
RECC2
OUT1
OUT2
INI1
INI2
INA1
INA2
INB1
INB2
INC1
INC2
IND1
IND2
INE1
INE2
INF1
INF2
ING1
ING2
INH1
INH2
LOGIC
+
–
+
–
+
–
+
–
IC303, 304, 306: NJM2068MD
Dual OP-Amp
–
+
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4
5
+IN
1
–IN
2
+IN
2
–
+
6
7
8
IC305: NJM4556AL
Dual OP-Amp
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
FRONT L
CENTER
SURROUND L
ANALOG IN
ANALOG IN
0
0
0
11.9
0
0
0
-12.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-6.9
-10.7
-7.6
-7.6
7.7
7.7
7.0
10.9
0
0
0
-12.0
0
0
0
11.9
-11.9
-11.9
0
0
0
0
0
0
-11.9
0
0
-11.9
0
0
0.8
0
0
0.8
10.5
9.4
0
0
-11.9
0
0
-11.9
0
0
-11.9
0
0
-11.9
0
0
0
11.9
0
0
0
-12.0
0
0
0
9.4
0
0
0
-10.1
-10.1
-10.7
0
0
to DSP
Page 82
C1
to DSP
Page 82
D1
to SUBTR (2)
HTR-5850: Page 89
J3
RX-V457/HTR-5840/DSP-AX457: Page 90
J3
RX-V557/DSP-AX557: Page 88
J3
to OPERATION (4)
HTR-5850: Page 85
K2
RX-V457/HTR-5840/DSP-AX457: Page 85
K2
RX-V557/DSP-AX557: Page 84
K3
to OPERA
TION (1)
HTR-5850:
P
age 85
G7
RX-V457/HTR-5840/DSP-AX457:
P
age 85
G7
RX-V557/DSP-AX557:
P
age 84
G7
to PO
WER (1)
RX-V457/HTR-5840/DSP-AX457:
P
age 87
A1
RX-V557/HTR-5850/DSP-AX557:
P
age 87
A3
to PO
WER (1)
P
age 87
A4
to XM
(U, C models)
RX-V557: Page 93
J5
to SUBTR (9)
HTR-5850: Page 89
C4
RX-V457/HTR-5840/DSP-AX457: Page 90
C5
RX-V557/DSP-AX557: Page 88
G8
FUNCTION
1
7
2
6
3
5
8
4
1
7
2
3
5
6
8
4
1
2
3
8
7
6
5
4
SELECTOR
/VOLUME
MUTE
MUTE
MUTE
MUTE
C3326 A,B
C3326 A,B
C3326 A,B
C3326 A,B
C3326 A,B
C3326 A,B