Specifications
A
1
2
3
4
5
6
7
8
9
10
BCDEFGH I JK
L MN
RX-V550/HTR-5750/RX-V450/HTR-5740/DSP-AX450
76
SCHEMATIC DIAGRAM (FUNCTION 1/2) RX-V550
★ All voltages are measured with a 10MΩ/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。
IC303, 304, 306: NJM2068MD
Dual OP-Amp.
IC302: BD3841FS
Function Switch
–+
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
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
GND
F-SW2
CKZ2
DTZ2
VSS
GND
VCC
NC
NC
NC
NC
NC
NC
Z2L
Z2R
E
E
AXL
AXR
VIL
VIR
DTL
DTR
DVL
DVR
MIL
MIR
COL
COR
TUL
TUR
E
E
LOGIC
+
–
+
–
+
–
+
–
80
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
AGND1
INA1
INA2
INB1
INB2
INC1
INC2
IND1
IND2
INE1
INE2
INF1
INF2
AGND2
INDVDFR
INDVDFL
INDVDC
INDVDSR
INDVDSL
INDVDCB
INDVDSW
AGND3
OUT1
OUT2
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
ING SW
LOGIC
Input select
Vcc V
EE
TREBLE
BASS
Output
mode
select
Master
volume
6.1ch select
FRL select
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
REC A
REC B
REC C
IC301: BD3816K1
Input Select & Volume Control
FRONT L
CENTER
SURROUND L
0.8
0.8
0.1
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
0
0
0
0
0
0.1
7.0
-6.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-11.7
11.8
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-11.6
-11.6
-11.6
-11.6
-11.6
-11.6
0.7
10.0
9.3
9.3
0
0
0
0
-9.2
-9.2-9.8
0
0
0.7
0.1
0.1
0.1
-11.8
0.1
11.8
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0
0.1
-11.8
0.1
11.8
0.1
0.1
0
0
0
0
7.0
7.7
7.7
-7.9
-7.0
-6.9
-11.7
0
0
11.8
0
0
0
0
0
0
Page 77
to FUNCTION (2)
L4 Page 75
to DSP
I1 Page 80
to OPERATION (4)
K4
Page 80
to OPERATION (1)
H8
Page 83
to POWER (1)
A1
Page 83
to POWER (1)
A2
x: NOT USED
O:USED / APPLICABLE
HP AMP.
MUTE
MUTE
MUTE
SELECTOR/
VOLUME
MUTE