Yamaha RX-V350, Руководство по обслуживанию

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A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V350/HTR-5730
SCHEMATIC DIAGRAM (FUNCTION 1/2)
53
IC452~IC456: NJM2068MD
Dual OP-Amp. IC451: BD3816K1
Input Select &
Volume Control
– +
OUT 1
–IN
1
–V CC
+V CC
OUT
2
1
2
3
4 5
+IN
1
–IN
2
+IN 2
– +
6
7
8
INPUT SELECT
&
VOLUME CONTROL
MUTE
HPF
HPF
Page 56
to MAIN (1)
F3 Page 52
to DSP
H1
P
age 55
to MAIN (1)
A6
FUNCTION (1)
FUNCTION (6)
FUNCTION (3)
1
7
2
3
5
6
4
8
1
7
2
3
5
6
4
8
7
1
6
5
3
2
4
8
★ 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.
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
REC A
REC B
REC C
LOGIC
Input select
Vcc VEE
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
FRONT L
CD L (ANALOG IN)
CENTER
SURROUND L
FRONT L
CENTER
SURROUND L
-7.0
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
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
0
0
0
0
0
0
0
0
0
0
7.0
-7.0
7.7
7.8
-7.7
-7.7
0
12.1
-12.1
0
0
12.0
0
0
0
0
-12.1
0
0
12.0
0
0
0
0
-12.1
0
0
12.0
0
0
0
0
-12.1
0.1
0.1
0
0
0
0
0
0.7
0
0
0
0
0.8
0.8
0.7
0.1
0.1
0.1
0.1
0.1
0.1
0
0
0.1
12.0
12.0
-12.1
-12.1
0 0
0 0
-12.1 -12.1