Yamaha RX-V465 Service Manual page 115

Av receiver/av amplifier
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A
B
C
OPERATION 1/2
1
2
-30.6
-26.4
-26.4
-37.1
-32.7
-34.9
-28.5
3
-30.5
-28.7
3.4
-28.6
-24.4
3.4
-35.0
-34.9
-37.1
-34.9
3.4
-35.0
-34.9
3.4
-35.0
-34.9
-35.0
-35.0
-34.9
-34.8
4
3.4
HDMI
THROUGH
2.0
indicator
5
2.0
0
0
SCENE
CD
TV
6
7
JK401
8
OPTIMIZER
MIC
5.1
12.0
0
0
IC401
0
0
0
IC401
0
0
-12.1
9
0
0
0
0
10
D
E
F
3.4
3.4
-30.7
-26.6
-30.6
-26.5
-30.6
-30.6
-28.5
-30.6
-26.5
-28.6
-28.6
IC402
-30.7
3.4
3.4
3.4
1.6
1.6
0
-28.7
-28.7
-28.2
0
-28.6
-28.6
3.4
-33.0
3.4
3.4
-37.4
BD/DVD
Key detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
Ohm
0
+ 1.0k
+ 1.0k
V
0 – 0.15
0.15 – 0.42
0.43 – 0.70
A/D value
0 – 11
12 – 32
33 – 54
(3.3 V=255)
SCENE
SCENE
SCENE
KEY1 (133 pin)
RADIO
CD
TV
Ohm
0
+ 1.0k
+ 1.0k
12.0
V
0 – 0.15
0.15 – 0.42
0.43 – 0.70
A/D value
0 – 11
12 – 32
33 – 54
(3.3 V=255)
11.9
11.6
11.2
KEY2 (134 pin)
DIRECT
STRAIGHT
INFO
11.9
0
3.3
0
Page 112
B2
to DIGITAL_CB20
G
H
I
OPERATION (1)
VOLUME
CB403
0
0
0
0
W4002
W4003
+ 1.5k
+ 1.5k
+ 2.2k
+ 3.3k
+ 4.7k
+ 22.0k
+ 33.0k
0.71 – 0.97
0.98 – 1.24
1.25 – 1.53
1.54 – 1.84
1.84 – 2.1
2.34 – 2.55
2.55 – 2.97
55 – 75
76 – 95
96 – 118
119 – 142
143 – 162
181 – 197
198 – 229
SCENE
PROGRAM
PROGRAM
STANDBY/
TONE
BD/DVD
>
<
ON
CONTROL
+ 1.5k
+ 1.8k
+ 2.2k
+ 3.3k
+ 4.7k
+ 6.8k
+ 10.0k
+ 22.0k
+ 68.0k
0.71 – 0.99
1.0 – 1.27
1.28 – 1.56
1.57 – 1.86
1.86 – 2.14
2.14 – 2.4
2.4 – 2.65
2.66 – 2.91
2.92 – 3.17
55 – 77
78 – 98
99 – 120
121 – 143
144 – 165
166 – 185
186 – 205
206 – 225
226 – 245
PRESET
PRESET
CATEGORY <
CATEGORY >
TUNING CH
TUNING CH
INPUT
INPUT
MEMORY
<
>
FM
AM
<
>
<
>
CB404
Page 116
I5
to OPERATION (2)_CB461
J
K
L
OPERATION (3)
0
0
0
W4403
0
0
3.4
JK472
PHONES
OPERATION (7)
VIDEO
VIDEO
AUX
AUDIO
0
0
0
0
0
0
0
0
PORTABLE
OPERATION (10)
OPERATION (6)
W4404
Page 120
N8
to VIDEO (6)_CB333
STANDBY/ON
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
★ Components having special characteristics are marked
and must be replaced
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、
with parts having specifications equal to those originally installed.
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。
★ Schematic diagram is subject to change without notice.
● 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。
M
N
RX-V465/HTR-6240/AX-V465
IC401: NJM4565M
Dual operational amplifier
V+
8
2, 6
–INPUT
OUTPUT
1, 7
+INPUT
3, 5
V–
4
IC402: M66003-0131FP-R
18 digit 5 x 7 segment VFD controller/driver
Display code
RAM
CGROM
(35-bit x 166)
44
SEG00
(8-bit x 60)
Segment
19
SEG25
Code
write
output
17
SEG26
circuit
CGROM
dot data
9
SEG34
CS
2
Serial
data
(35-bit x 16)
write
SCK
3
receive
Code/
circuit
SDATA
4
command
45
SEG35
control
circuit
DIG11/
52
SEG42
DIG12/
51
SEG41
Segment/
code
DIG13/
50
select
Digit
SEG40
select/
DIG14/
49
XIN
7
output
SEG39
Clock
timing
Display
generator
clock
scan pulse
circuit
DIG15/
XOUT
6
controller
48
SEG38
DIG16/
47
SEG37
DIG17/
46
SEG36
63
DIG00
Digit
RESET
1
output
circuit
Vcc1
8
53
DIG10
Vcc2
18
Vss
5
Vp
64
CB477
Page 120
B4
to VIDEO (1)_W3401
W4406
CB476
115

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