Yamaha HTR-8063, Service Manual

Page: 137 / 185

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B C D E F G H I J K L M N
137
OPERATION
RX-V1067/HTR-8063/RX-A1000
★
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あります。
CB406
CB471
W4001
W4002 W4003 W4004
CB461
CB401
CB453
CB452
IC452
JK452
JK453
JK451
CB455
CB454
W4501
IC451
IC451
8.0 8.0
1.8 1.7
0 0 0 8.0 8.0
3.2 3.3 3.3
43.7
2.2
3.4
0
1.8
43.7
3.4
2.0
2.1
0
0 0
0 3.3
7.4
3.7
0
43.8
0.2
0
0
0
0
0
0
0
0
0
3.3
12.2
12.2
12.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5.1
0
0
3.4
0
-12.0
0
0
0
0
0
-12.2
12.2
5.0
0
0
3.3
8.0
8.0
3.3
0 0
0
1.7
0
0
0
0
0.2
5.0
0
0 0 0 0 0 0 0 3.3 3.3
3.3 3.3 3.3
3.3 3.3 4.9 3.3 3.3
3.3 3.3 3.3 3.3 3.3
3.3
0
12.2
3.3
3.3
5.0
5.0
2.9
2.9
3.3
0
3.3
3.3
0
0
0
0
0
12.2
3.3
3.3 3.3 3.3
0 0
0 0
3.3
0
0
0 5.0
3.4
1.6
3.3
5.0
IC451 : NJM4565M
Dual operational amplifier
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
OPERATION (1)
OPERATION (4) OPERATION (3)
OPERATION (2)
MAIN ZONE
HDMI Through
indicator
USB
PURE DIRECT
indicator
VOLUME
INPUT
TONE/BALANCE ON SCREEN
DISPLAY RETURN
U model
C, R, T, K, A, B, G, F, L, J models PHONES
SILENT CINEMA
YPAO
MIC
OPTICAL
AUDIO
VIDEO
S VIDEO
R
L
to FUNCTION (1)_W701
Page 135 L7
to DIGITAL (1)_CB914
Page 132 K8
to FUNCTION (2)_CB806
Page 136 J4
to VIDEO (3)_CB362
Page 142 H9
to NET_CB511
Page 144 I5
Key detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
Ohm 0 + 0.82 k + 0.82 k + 1.0 k + 1.5 k + 2.7 k
V 0 – 0.125 0.125 – 0.358 0.358 – 0.577 0.577 – 0.828 0.828 – 1.078 1.535 – 1.777
A/D conversion value
(3.3 V=255)
0 – 9 10 – 27 28 – 44 45 – 63 64 – 83 119 – 137
KY_AD1 (139 pin of
the microprocessor)
SCENE
4
SCENE
3
SCENE
2
SCENE
1
ZONE2
ON/OFF
MAIN ZONE
Ohm 0 + 0.82 k + 0.82 k + 1.0 k + 1.5 k + 1.5 k + 1.8 k + 2.7 k + 3.3 k + 4.7 k
V 0 – 0.125 0.125 – 0.358 0.358 – 0.577 0.577 – 0.828 0.828 – 1.078 1.078 – 1.299 1.299 – 1.535 1.535 – 1.777 1.777 – 2.010 2.010 – 2.241
A/D conversion value
(3.3 V=255)
0 – 9 10 – 27 28 – 44 45 – 63 64 – 83 84 – 100 101 – 118 119 – 137 138 – 155 156 – 173
KY_AD3
(14 pin of the IC902)
PRESET
>
PRESET
<
MEMORY INFO
ZONE
CONTROLS
FM AM
TUNING/CH
<<
TUNING/CH
>>
PURE
DIRECT
Ohm 0 + 0.82 k + 0.82 k + 1.0 k + 1.5 k + 1.5 k + 1.8 k + 2.7 k + 3.3 k + 4.7 k + 6.8 k + 12.0 k + 22.0 k
V 0 – 0.125 0.125 – 0.358 0.358 – 0.577 0.577 – 0.828 0.828 – 1.078 1.078 – 1.299 1.299 – 1.535 1.535 – 1.777 1.777 – 2.010 2.010 – 2.241 2.241 – 2.476 2.476 – 2.709 2.709 – 2.940
A/D conversion value
(3.3 V=255)
0 – 9 10 – 27 28 – 44 45 – 63 64-83 84 – 100 101 – 118 119 – 137 138 – 155 156 – 173 174 – 191 192 – 209 210 – 227
KY_AD2 (138 pin of
the microprocessor)
STRAIGHT
TONE
BALANCE
OPTION △ ON SCREEN ＜ ENTER ＞
PROGRAM
<
PROGRAM
>
DISPLAY ▽ RETURN
DRAFT