Yamaha RX-V765 Service Manual page 76

RX-V765/HTR-6270/AX-V765
IC153: R2A15220FP (MAIN P.C.B.)
8-channel electronic volume with 11 input selector and tone control
MUTE 51
A VEE 52
53
ADCL
54
ADCR
AGND 55
INR1
56
INL1
57
INR2
58
INL2
59
INR3
60
INL3 61
INR4 62
63
INL4
INR5
64
INL5
65
INR6 66
67
INL6
INR7 68
INL7 69
70
INR8
INL8 71
72
INRA/RECR1
INLA/RECL1 73
74
INR9
INL9
75
INRB/RECR2
76
INLB/RECL2
77
INR10/RECR4
78
INR10/RECL4
79
INR11/RECR5
80
76
50 49 48 47 46 45 44 43 42
MCU
AVEE
I/F
0/-6/-12/-18dB
ATT
MAIN
0~-95dB,
-∞
(0.5dBstep)
SUB
0~95dB,
(0.5dBstep)
REC
81
82 83 84 85 86 87 88 89
41 40 39 38 37 36 35 34 33
SUB2
Bass/Treble
+42~0dB
-14~+14dB
(0.5dBstep)
(2dBstep)
Bypass
Tone
Tone+MIX
Tone
+42~0dB
(0.5dBstep)
Tone+MIX
Tone Tone
Bypass
Bass/Treble
-∞
-14~+14dB
(2dBstep)
+42~-95dB
-(0.5dBstep)
+42~-95dB
-∞(0.5dBstep)
+42~-95dB
-∞(0.5dBstep)
+42~-95dB
-∞(0.5dBstep)
+42~-95dB
-∞(0.5dBstep)
+42~-95dB
-∞(0.5dBstep)
90 91 92 93 94 95 96 97 98
32 31
TRER
30
AVCC
BASSR2
29
28 BASSR1
27 TREL
BASSL2
26
25 BASSL1
FRC
24
23
FR Pre-OUT
FROUT
22
21 AGND
FLOUT
20
FL Pre-OUT
19
18 FLC
CC
17
COUT
16
AGND
15
14
SWOUT
SWC
13
12 SRC
11 SR Pre-OUT
SROUT
10
9 A GND
SLOUT
8
7 SL Pre-OUT
6
SLC
5
AGND
4
SBRC
3 SBR Pre-OUT
SBR OUT
2
AGND
1
99 100