Yamaha RX-V667 Service Manual page 114

A B C
RX-V667/HTR-6063/RX-A700
OPERATION 1/2
1
2
-33.6
-22.9
-25.0
-31.5
3
-37.8
-35.4
-35.5
-29.3
-22.9
-25.0
3.3
3.3 -27.4
-31.2
-35.5
-35.7
-37.8
-35.7
3.3 3.3
-35.6
-35.6
-35.5
-35.6 -35.6
-35.6
4
-35.6 -35.6
5
6
7
C, R, T, K, A, B, G, F, L models
TUNING/CH CATEGORY
U model
JK472
YPAO
8
MIC
5.0
12.2
0
0 IC471
0
0
0 IC471
0
-11.9
9
OPERATION (4)
10
★ 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.
114
D E F
-37.6
-33.6
-27.0
-27.1
VFD DRIVER
-27.1
-25.1
-27.3
IC401
-27.1
3.3
3.3
1.6
1.6
0
-27.0
3.2
3.1
3.3
3.3
0
CB473
0
3.3
HDMI Through/
iPod Change
2.0
indicator
MAIN ZONE
2.0
(Power)
0
0
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 + 1.5 k + 2.2 k + 3.3 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
A/D conversion value
0 − 11 12 − 32 33 − 54 55 − 75 76 − 96 97 − 119 120 − 142
(3.3V=255)
RADIO CD TV BD/DVD ZONE2 ZONE2 INPUT
KEY1 (139 pin)
(SCENE4) (SCENE3) (SCENE2) (SCENE1) CONTROL ON/OFF >
Ohm 0 + 1.0 k + 1.0 k + 1.5 k + 1.8 k + 2.2 k + 3.3 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
A/D conversion value
0 − 11 12 − 32 33 − 54 55 − 77 78 − 99 100 − 121 122 − 144
(3.3V=255)
TUNING TUNING PRESET PRESET
KEY2 (138 pin) AM FM
−
>> << > <
G H
Page 119 N9
to VIDEO (6)_CB333
CB405
-29.0
-29.0
-38.1
VOLUME
W4001
3.3 3.3
-27.1 -29.3
-27.0 -28.7
CB406 W4002 CB471
3.3
3.3
0
3.3
0
3.3 5.0
0
-27.4
0
-31.2 -29.0
0
-31.1
-33.6
PURE
DIRECT
-38.1
0
OPERATION (5)
0
W4011 W4012
CB407
W4003
12.2
0
0
-11.9
3.3
3.3
0
3.3
0
0
Page 112 K8
to DIGITAL (1)_CB914
+ 4.7 k 22.0 k 33.0 k
2.23 − 2.62 2.63 − 3.04
143 − 163 182 − 197 198 − 209
INPUT MAIN ZONE TONE
< (power) CONTROL
+ 4.7 k + 6.8 k + 10.0 k + 22.0 k + 68.0 k
2.15 − 2.39 2.40 − 2.65 2.66 − 2.91 2.92 − 3.17
145 − 166 167 − 186 187 − 205 206 − 226 227 − 246
PROGRAM PROGRAM
MEMORY INFO STRAIGHT
> <
I J K
W4402
OPERATION (6) OPERATION (10)
5.0
PURE DIRECT
0 0
indicator W4401
2.9
To chassis
0 0
2.9
0 JK471
PHONES
SILENT CINEMA
OPERATION (1)
12.2
12.2
11.9
0 12.2
12.2
0
0
Page 115 J8
to OPERATION (2)_CB458
L M N
IC401: M66003-0131FP-R
18 digit 5 x 7 segment VFD controller/driver
Display code
CGROM
RAM
44 SEG00
(35-bit x 166)
(8-bit x 60)
Segment 19 SEG25
Code
write output
17 SEG26
circuit
CGROM
SEG34
CS 2 Serial dot data 9
data (35-bit x 16)
write
SCK 3 receive
Code/
SDATA 4 circuit
command
45 SEG35
control
circuit
DIG11/
52
SEG42
DIG12/
51
SEG41
Segment/
code DIG13/
Digit 50
select
SEG40
select/
DIG14/
49
XIN 7 output SEG39
Clock
timing Display
generator clock controller scan pulse circuit DIG15/
XOUT 6 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
IC471: NJM4565M (TE1)
Dual operational amplifier
V+
8
OPERATION (3)
2, 6
–INPUT OUTPUT
1, 7
+INPUT
3, 5
V–
4
CB472
3.3
0 Page 119 B5
0
to VIDEO (1)_W3401
0
VIDEO
VIDEO AUX
AUDIO