Yamaha RX-V565 Service Manual page 121

A B C
MAIN 2/2
1
AV 1 AV 2 AV 3 AV 4
OPTICAL COAXIAL COAXIAL OPTICAL
(TV) (CD)
DIGITAL IN
2
0 0 5.0 0 0
0 0
5.0 5.0
3
CB152
BUFFER
4
Page 119 C8
5
to OPERATION (2)_CB454
CB153
6
Page 119 D8
to OPERATION (2)_CB456
CB154
Page 119 E8
to OPERATION (2)_CB457
7
CB155
IC153: R2A15220FP
IC152: TC74VHCU04FT
8-channel electronic volume with 11 input selector and tone control
Hex inverters
8
50 49 48 47 46 45 44 43
1A 1 14 VCC
MUTE 51
2 13 6A MCU
1Y AVEE
I/F
A VEE 52
2A 3 12 6Y
ADCL 53
0/-6/-12/-18dB
ATT
2Y 4 11 5A ADCR 54
AGND 55
MAIN
3A 5 10 5Y
INR1
56
3Y 6 9 4A INL1 57
INR2 58
GND 7 8 4Y
INL2 SUB
59
INR3 60
INL3 61
9
INR4 62
INL4 63
INR5 64
INL5
65
INR6 66
INL6 67
INR7 68
INL7 69
70
INR8
REC
INL8 71
72
INRA/RECR1
INLA/RECL1 73
74
INR9
INL9 75
INRB/RECR2
10 76
INLB/RECL2 77
INR10/RECR4
78
INR10/RECL4 79
INR11/RECR5 80
81
82 83 84 85 86 87 88
D E F
AV 5 AV 6 AV OUT AUDIO 1
5.1
ANALOG IN
0
0
0
0
0
0
0
0
0 IC153
0
0
0
0
0
SURROUND L
0
0
SUBWOOFER
0 SURROUND
0 BACK L CENTER
0
0
ANALOG IN
IC154: NJM4565M
Dual operational amplifier
V+
8
42 41 40 39 38 37 36 35 34 33 32 31
30 TRER
2, 6
AVCC
BASSR2
29 –INPUT OUTPUT
1, 7
28 BASSR1 +INPUT
3, 5
27 TREL
SUB2
26 BASSL2
Bass/Treble 25 BASSL1
0~-95dB,
-14~+14dB +42~0dB
-∞ (2dBstep) (0.5dBstep)
(0.5dBstep) 24 FRC V–
Bypass
Tone 4
23
Tone Tone+MIX FR Pre-OUT
+42~0dB 22 FROUT
(0.5dBstep)
Tone+MIX
Tone Tone 21 AGND
Bypass
FLOUT
20
0~95dB, Bass/Treble
-∞ -14~+14dB
(0.5dBstep) (2dBstep) 19 FL Pre-OUT
18 FLC
+42~-95dB
-(0.5dBstep)
17 CC
COUT
16
+42~-95dB
-∞(0.5dBstep) 15 AGND
+42~-95dB
-∞(0.5dBstep) 14
SWOUT
13 SWC
+42~-95dB 12 SRC
-∞(0.5dBstep)
11 SR Pre-OUT
10 SROUT
+42~-95dB
-∞(0.5dBstep)
9
A GND
8 SLOUT
7
SL Pre-OUT
+42~-95dB
-∞(0.5dBstep)
6 SLC
5 AGND
4 SBRC
3 SBR Pre-OUT
2 SBR OUT
1 AGND
89 90 91 92 93 94 95 96 97 98 99 100
G H
AUDIO 2
0
0
0
FRONT L
7.0
0
0 -11.9
0
-11.9
0
0
-11.9
0
I J K
AUDIO
OUT
11.6
0
IC154
0
0
0 -11.9
0
0 0
-11.9
0
0 0
-11.9
0 0 -11.9
0
IC154
0
-11.6
Page 114 E2
to DIGITAL_CB23
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★ Components having special characteristics are marked
and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
L M N
RX-V565/HTR-6250/AX-V565
PRE OUT
SUBWOOFER
0 -11.9
0
0
0 -11.9
MAIN (1)
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
● 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。
121