Yamaha RX-V2065 Service Manual page 133

A B C
MAIN 2/2
1
AV 1 AV 2 AV 3 AV 4
OPTICAL COAXIAL COAXIAL OPTICAL
(TV) (CD)
2
DIGITAL IN
0.2 0 5.0
2.0 0
0 0
5.0
5.0 5.0
0
0.2
0.4
0
0.4
0.2
3
0
CB152
BUFFER
4
0
0
0
0
0
0
0
0
Page 131 C8
0
5
0
to OPERATION (2)_CB454
0
0
0
0
0
0
0
0
CB153
0
0
0
0
0
0
6 0
Page 131 D8
0
to OPERATION (2)_CB456 0
0
0
0
0
0
0
CB154
0
0
0
0
0
Page 131 E8
12.1
to OPERATION (2)_CB457 -11.7
7
-11.5
-11.5
-11.5
-11.5
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
1A 1 14 VCC
MUTE 51
6A MCU
1Y 2 13 AVEE
I/F
A VEE 52
2A 3 12 6Y
53
ADCL
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
67
INL6
INR7 68
INL7 69
INR8 70
REC
INL8 71
INRA/RECR1 72
INLA/RECL1 73
INR9 74
INL9 75
INRB/RECR2
76
10
INLB/RECL2 77
INR10/RECR4
78
INR10/RECL4 79
INR11/RECR5
80
81 82 83 84 85 86
D E F
AV 5 AV 6 AV OUT AUDIO 1
5.0
To MAIN 1/2
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
Page 133 H4
to MAIN (1)_CB157
CB158
W115
IC154: NJM4565M
Dual operational amplifier
V+
8
44 43 42 41 40 39 38 37 36 35 34 33 32 31
30 TRER
2, 6
AVCC
BASSR2
29 –INPUT
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
Bypass V–
Tone 4
23
Tone Tone+MIX FR Pre-OUT
+42~0dB 22 FROUT
(0.5dBstep)
Tone+MIX
Tone Tone AGND
21
Bypass
20 FLOUT
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
AGND
1
87 88 89 90 91 92 93 94 95 96 97 98 99 100
G H
AUDIO 2 MULTI CH INPUT
FRONT SURROUND SURROUND BACK SUBWOOFER CENTER
R L R L R L
W117B W117A
0
0
6.9
0
0
0
CB157 12.1
Page 133 C7
0.2
0 W115
0.2
to MAIN (1)_CB158
0 -11.7
0
0 0
0
0
0
0
-6.8
0
0
0
FRONT L 0
0
6.9
0
-11.5
0
0
-11.5
0
0
-11.5
0
0
-11.5
0
0
0
0 -11.5
-11.5
0
OUTPUT
I J K
AUDIO ZONE2 ZONE3
OUT OUT OUT
FRONT
R L
0 0 0 0 0 0 0 0
0.7 0.7 0.7 0.7
0 0 0 0 0 0 0 0
0.7 0.7 0.7 0.7
11.6 0
0
-11.5
IC154 0
0
0
0 0
0.8 0.8
0
0 0
0 -11.5
0 0
0
0 0 0.8
0.8
-11.5
0 0
0
IC154
0
0
-11.2
0 -11.5
Page 124 E2
to DIGITAL (1)_CB23
L M N
RX-V2065/HTR-6295
PRE OUT
SURROUND SURROUND BACK SUBWOOFER 1 CENTER SUBWOOFER 2
R L R L
0
-11.5
0
0
0 -11.5
0
-11.5
0
0
0 -11.5
MAIN (1)
★ 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.
133