Yamaha HTR-4064, Service Manual

Page: 97 / 127

★
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。
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
97
OPERATION 1/2
RX-V471/HTR-4064
CB404
CB403
W4201
CB431 W4003
W4002
JK441
CB442
JK401
W4251
W4301
IC451
W4302
CB451
IC401
CB421
IC421
IC421
W4101
CB402 CB405
JK421
CB401
IC402 IC402
IC403
W4001
-36.0
-36.0
-33.9
-33.9
-33.9
-31.8
3.6
3.3
3.4
3.4
1.6
1.6
-31.7
-33.9
0
0
-33.9
-33.8
-35.2
-38.2
-33.8
-36.0
-36.0
-36.0
-36.9
-28.2
-36.0
-35.7
-35.8
3.3
-31.6
-31.8
3.3
-33.4
-33.8
3.3
-35.6
-36.0
3.3
-35.7
-36.0
-30.0
-34.0
-38.4
3.3
3.3
-29.3
-29.3
-38.3
0
3.3
3.4
0
0
0
3.3
0
3.3
3.4
0
0
0
-35.9
-36.9
3.3
-35.9
-36.0
3.3
-35.9
-36.0
3.3
-33.4
-33.9
-33.8
-31.7
-29.6
-33.9 -36.0 -38.2 -38.2 -33.9 -31.8 -31.8 -33.9 -31.8 -33.8 -33.8
-33.8
3.3 -31.7 -31.7 -36.0
-36.0
-36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -38.4
-29.3 -29.3 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -36.1 -35.9 -35.9 -35.9 -35.9 -35.7 -28.2 -35.8 -33.9 -33.4 -31.6 -36.0 -38.2 -36.0 -38.2 -36.0 -33.9 -36.0 -33.9 -33.9 -33.9 -31.7 -33.9 -31.6
-29.3 -29.3
-31.8 -31.8 -33.8 -33.9 -33.8 -33.8 -31.8 -33.8 -33.8 -31.7 -31.7 -31.7 -29.6 -33.9 -33.9 -36.0 -36.0
5.2
5.2
3.3 0
0
0
0
0
0
0
3.3
0
0
0
3.4
0
0
5.6
0
0
0
5.6
5.6
0 0 0
5.6 5.6
0 3.3
3.3
0
0
3.3
-11.7
0
0
0
0
0
5.1
0
0
0
0
12.2
0
0
3.4
2.0
2.0
12.2
0
0
0
0
0
0
3.4
-11.7
3.3
12.2
0
0
0
0
0
0
3.4
-11.7
3.3
0
0
0 0
0
0
0
-11.7 0 0 0 0 0 0 0 12.2
3.4 3.3
3.4 3.3
0 3.3
3.3 3.3 3.3
3.3
3.3
3.3
2.1
2.1
0
0 3.4
0
0
0
0 0
0 0
3.4
3.4
3.4
0
0
0
0
0
0
5.6
0
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
IC401 : 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
IC421 : NJM4565M (TE1)
Dual operational amplifier
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
VDD
CE
Pin No.
1
2
3
4
5
Symbol
CE
GND
NC
V DD
V OUT
Description
Chip Enable Pin ("H" Active)
Ground Pin
No Connection
Input Pin
Output Pin
Vref
4 5
1 2
Current Limit
VOUT
GND
IC451 : R1172H501D-T1-F
Voltage regulator
1
3
2
5
4 GND
V
CC
IC403 : TC7SH08FU
2-input AND gate
IN A
IN B
OUT Y
IC402 : TC7W14F
Schmitt inverter
1
2
3
4
8
7
6
5
1A
3Y
2A
GND
VCC
1Y
3A
2Y
FL DRIVER
VIDEO AUX
VIDEO
AUDIO
PORTABLE
L
R
(power)
OPERATION (5)
OPERATION (4)
OPERATION (6) OPERATION (7)
OPERATION (2)
OPERATION (3)
OPERATION (1)
USB
iPod/iPhone
DIRECT
VOLUME
YPAO MIC
Standby
indicator
PHONES
SILENT CINEMA
Remote control sensor
to DIGITAL_CB45
Page 93 L8
to VIDEO (5)_CB348
Page 102 K9
to VIDEO (1)_W3401
to chassis
Page 102 B2
to DIGITAL_CB44
Page 93 L2
to DIGITAL_CB64
Page 94 L6
to VIDEO (2)_CB390
Page 103 J8
Key detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
Ohm 0 + 1.0 k + 1.0 k + 1.5 k + 1.8 k + 2.2 k + 3.3 k + 4.7 k + 6.8 k + 10.0 k + 22.0 k + 68.0 k
V 0 – 0.15 0.16 – 0.42 0.43-0.70 0.71 – 0.99 1.00 – 1.27 1.28 – 1.56 1.57 – 1.86 1.87 – 2.14 2.15 – 2.39 2.40 – 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 – 99 100 – 121 122 – 144 145 – 166 167 – 186 187 – 205 206 – 226 227 – 246
KEY2
(170 pin)
DIRECT
TUNING
>>
TUNING
<<
AM FM
PRESET
>
PRESET
<
MEMORY INFO STRAIGHT
PROGRAM
>
PROGRAM
<
Ohm 0 + 1.0 k + 1.0 k + 1.5 k + 1.5 k + 2.2 k + 3.3 k + 4.7 k 22.0 k 33.0 k
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 1.85 – 2.22 2.23 – 2.62 2.63 – 3.04
A/D value
(3.3 V=255)
0 – 11 12 – 32 33 – 54 55 – 75 76 – 96 97 – 119 120 – 142 143 – 163 182 – 197 198 – 209
KEY1
(171 pin)
RADIO
(SCENE4)
CD
(SCENE3)
TV
(SCENE2)
BD/DVD
(SCENE1)
– –
INPUT
>
INPUT
<
(Power)
TONE
CONTROL