Yamaha AX-V565, Service Manual

Page: 118 / 150

★
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.
● 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。
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V565/HTR-6250/AX-V565
118
OPERATION 1/2
CB401 CB402
CB403
CB404
W4003
W4002
JK471
W4405
W4404
IC401
W4001
IC401
JK401
IC402
W4406
CB477
JK472
W4403
CB476
CB474
-28.2 -28.2 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -34.9 -34.8 -34.9 -34.9 -37.1
-34.9
-26.4 -28.5
3.4
-28.5
-30.6
-30.6
-28.5
-26.5
-28.6
-28.6
-30.7
3.4
3.4
3.4
3.4
3.4
-34.9 3.4
-35.0
3.4
2.0
-28.2
-33.0
-37.4
0
0
0
0
0
0
5.1
0
12.0
11.6
0
0
0
0
0
0
0
0
12.0
-12.1
0
0
0
0
0
0
0
0
0
0
0
0
0
3.4
-34.8
3.4
-28.7
-28.6
3.4
-30.7
-30.6
3.4
-26.6
-26.5
3.4
-28.7
-28.6
2.0
0
0
11.9
11.2
11.9
3.3
0
0
3.4
-35.0
-34.9
3.4
-34.9
-34.9
1.6
0
0
1.6
-30.6
-30.6
-30.5
-28.7
-28.6
-35.0
-35.0
-35.0
-34.9
-24.4
-37.1
-26.4
-26.4
-37.1
-32.7
-34.9
-28.5
-32.7 -26.6 -26.4 -28.6 -26.4 -24.3 -28.7 -30.6 -32.8 -37.7 -37.1 -32.8
-35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -35.0 -37.4
3.3 3.3 0
-37.1 -34.9 -24.4 -28.6 -28.6 -30.5 -28.6 -30.6 -30.6 -30.6 -28.5 -26.4 -26.5 -26.1 -28.5 -28.5 -28.6 -28.2 -28.2 -28.6 -26.5 -26.4 -26.4 -28.6 -24.3 -26.4 -26.4 -30.6 -34.9 -32.7 -37.2 -32.8 -30.6 -30.6 -32.7 -37.1 -32.8
52
Display
controller
Serial
receive
circuit
Digit
output
circuit
Clock
generator
DIG11/
SEG42
51
DIG12/
SEG41
50
DIG13/
SEG40
49
DIG14/
SEG39
48
DIG15/
SEG38
47
DIG16/
SEG37
46
DIG17/
SEG36
45 SEG35
XOUT 6
Vcc1 8
Vcc2 18
Vss 5
Vp 64
XIN 7
CS
SCK 3
SDATA 4
RESET
1
SEG00 44
9 SEG34
SEG26 17
19 SEG25 Segment
output
circuit
Display code
RAM
(8-bit x 60)
CGROM
(35-bit x 166)
CGROM
(35-bit x 16)
code
select
Code
write
Code/
command
control
circuit
DIG00 63
53 DIG10
IC402 : M66003-0131FP-R
18 digit 5 x 7 segment VFD controller/driver
2
data
timing
clock
dot data
write
scan pulse
Segment/
Digit
select/
output
circuit
IC401 : NJM4565M
Dual operational amplifier
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
AUDIO
VIDEO
PHONES
VOLUME
OPTIMIZER
MIC
SCENE
TV BD/DVD
VIDEO
AUX
PORTABLE
OPERATION (3)
OPERATION (7)
OPERATION (10)
OPERATION (6)
OPERATION (1)
STANDBY/ON
HDMI
THROUGH
indicator
Ohm 0 + 1.0k + 1.0k + 1.5k + 1.8k + 2.2k + 3.3k + 4.7k + 6.8k + 10.0k + 22.0k + 68.0k
V 0 – 0.15 0.15 – 0.42 0.43 – 0.70 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
A/D value
(3.3 V=255)
0 – 11 12 – 32 33 – 54 55 – 77 78 – 98 99 – 120 121 – 143 144 – 165 166 – 185 186 – 205 206 – 225 226 – 245
KEY2 (134 pin) DIRECT STRAIGHT INFO MEMORY
PRESET
<
PRESET
>
CATEGORY <
FM
CATEGORY >
AM
TUNING CH
<
TUNING CH
>
INPUT
<
INPUT
>
Ohm 0 + 1.0k + 1.0k + 1.5k + 1.5k + 2.2k + 3.3k + 4.7k + 22.0k + 33.0k
V 0 – 0.15 0.15 – 0.42 0.43 – 0.70 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
A/D value
(3.3 V=255)
0 – 11 12 – 32 33 – 54 55 – 75 76 – 95 96 – 118 119 – 142 143 – 162 181 – 197 198 – 229
KEY1 (133 pin)
SCENE
RADIO
SCENE
CD
SCENE
TV
SCENE
BD/DVD
– –
PROGRAM
>
PROGRAM
<
STANDBY/
ON
TONE
CONTROL
Key detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
to DIGITAL_CB20
Page 114 B2
to OPERATION (2)_CB461
Page 119 I5
to VIDEO (6)_CB333
Page 123 N8
to VIDEO (1)_W3401
Page 123 B4