Yamaha RX-V557 Service Manual page 83

A B C
SCHEMATIC DIAGRAM (FUNCTION)
1
Page 82 C1 RX-V457/HTR-5840/DSP-AX457: Page 90
to DSP
2
3
4
0
0
0
0
0
0
0
0
5
0
0
0
0
0
0
0
0
ANALOG IN
0
0
0
0
6 0
0
0
0
7
8
RX-V557/DSP-AX557: Page 88
RX-V457/HTR-5840/DSP-AX457: Page 90
to SUBTR (9)
9
10
# All voltages are measured with a 10MΩ/V DC electronic volt meter.
★ 電圧は、内部抵抗10MΩの電圧計で測定したものです。
# Components having special characteristics are marked s and must be replaced
★ 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
with parts having specifications equal to those originally installed.
トに記載されている部品を使用してください。
# Schematic diagram is subject to change without notice.
★ 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。
D E F
RX-V557/DSP-AX557: Page 88 J3
HTR-5850: Page 89 J3
J3 Page 82 D1 RX-V457/HTR-5840/DSP-AX457: Page 85
to SUBTR (2) to DSP
ANALOG IN
11.9 0
0
0
0
0
0
-12.0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SELECTOR
0
/VOLUME
0
0
0
10.9
7.0
7.7
7.7
0
0
-7.6
-7.6
-6.9 -10.7
G8 RX-V557: Page 93 J5
HTR-5850: Page 89 C4
to XM
C5 (U, C models)
G H
RX-V557/DSP-AX557: Page 84 K3
HTR-5850: Page 85 K2
K2
to OPERATION (4)
MUTE
10.5 9.4
8
9.4
3
0
0 1 0
2
0
0.8
0
0
0.8
0
6
0 7 0
0
5
-10.1
4
-10.7 -10.1
FRONT L
8
3 11.9
0 0
0 1
2 0
-11.9
0
0
-11.9
6 0
0 7 0
0
5 -12.0 MUTE
4
CENTER
MUTE
SURROUND L
0
-11.9
0 0
-11.9
0
0
-11.9
8 MUTE
0 11.9 0
0
3 0
0 1
-11.9
0
2 0 0
0 -11.9 0 -11.9
4
0 -12.0
5 0
0 7
6
IC302: BD3841FS IC303, 304, 306: NJM2068MD
Function Switch Dual OP-Amp
OUT 1 8 +V
1
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
–IN 1 2 7 OUT
+ – + –
+IN 3 6 –IN
LOGIC 1
–V 4 5 +IN
CC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
F-SW1: INPUT FUNCTION 1
*
F-SW2: INPUT FUNCTION 2
I J K
IC301: BD3816K1
7-channel volume IC for 7-channel
AGND1 1
INA1 2
INA2 3
FUNCTION
INB1 4
INB2 5
INC1 6
INC2 7
IND1 8
IND2 9
INE1 10
INE2 11
IC305: NJM4556AL
Dual OP-Amp INF1 12
INF2 13
V+
8
AGND2 14
CC
INDVDFR 15
2
2, 6 OUTPUT
INDVDFL 16
–INPUT
2 1, 7
INDVDC
+INPUT 17
3, 5
2 INDVDSR
18
INDVDSL 19
INDVDCB 20
V–
4
INDVDSW 21
AGND3
22
OUT1
23
OUT2 24
25
L M N
RX-V557/HTR-5850/DSP-AX557/RX-V457/HTR-5840/DSP-AX457
LOGIC
64 VINFR
63 GOUTFL
VINFL
62
61 AGND10
60 TNF1
Input
TREBLE
select ING SW
59 TNF2
58 BNFA1
BASS 57 BNFB1
Output
mode
select
56 BNFA2
55 BNFB2
Master + 54 OUTFR
Volume
+ 53 OUTFL
52 AGND9
FRL select
51 OUTC
50 OUTSR
49 OUTSL
OUTCB
48
47 AGND8
46 OUTSW
45 AGND7
44 VINC
GOUTC
43
6.1ch select
VINSR
42
41 GOUTSR
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
83