Ic Data; Ic21: R2A15220Fp (Main P.c.b.); 8-Channel Electronic Volume With 11 Input Selector And Tone Control - Yamaha RX-V373 Service Manual

■ IC DATA

IC21: R2A15220FP (MAIN P.C.B.)

8-channel electronic volume with 11 input selector and tone control

MUTE 51
52
A VEE
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
INL6 67
INR7 68
INL7 69
70
INR8
INL8 71
INRA/RECR1 72
INLA/RECL1
73
INR9 74
INL9
75
INRB/RECR2
76
INLB/RECL2
77
INR10/RECR4
78
INR10/RECL4
79
INR11/RECR5
80
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
RX-V373/HTR-3065
32 31
TRER
30
AVCC
BASSR2
29
28
BASSR1
TREL
27
BASSL2
26
25 BASSL1
FRC
24
23
FR Pre-OUT
22 FROUT
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
55