Yamaha HTR-6280, Service Manual

Page: 124 / 166

A
1 2 3 4 5 6 7 8 9
10
BCD
E
F
G
H
I
J
K
L
M
N
RX-V1065/HTR-6280/AX-V1065
124
OPERATION 1/2
★
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。
CB401
CB402
CB403 CB404
JK471
W4405
W4404
W4408
CB476
IC401
IC401
JK401
IC402
JK472
W4407
CB475
CB477
JK472
CB474
-29.2
-29.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.0
-35.0
-35.0
-35.0
-37.2
-35.0
-33.0
-30.8
-30.9
-30.8
-30.9
-35.1
-30.8
-29.2
-29.2
-33.0
-32.9
-32.9
-37.2
-32.9
-32.9
-30.9
-33.0
-33.0
-28.8
-35.1
-32.9
-30.9
-22.9
-33.0
-33.0
-35.1
-34.9
-35.1
-35.0
-32.9
-35.1
-35.1
-35.1
-30.8
-34.9
-28.8
-35.1 -33.0
-32.9
3.3
-32.9
-37.2 -32.9 -33.0 -33.0 -32.9 -33.0 -30.8
3.3
3.1
3.3 3.4
-35.1
3.3 -35.0
-35.1
-35.0 3.3
3.4 2.0
-30.1 -33.8 -37.4
12.0
0
12.0
11.7
11.7
0
0 0
0
12.0
-11.8
0 0
5.1 2.9
2.9
3.3
-30.9
-30.8
3.3
-35.1
-34.9
3.3
-35.1
-34.9
3.3
-30.9
-30.8
2.0
0
0
12.0
12.0
0
0
12.0
0
0
0
0
0
3.3
-35.1
-35.0
3.3
-35.0
1.6 0
0
1.6
-30.9
-33.0 -32.9
-30.9 -33.0 -35.1 -35.1 -35.1 -35.0 -35.1 -37.2
-28.8 -30.8 -32.9 -35.1 -35.0 -30.8
-35.1
-31.1
-30.9
-28.8
-30.9
-30.9
-35.1
-32.9
-35.1
-35.1
-35.1
-35.1
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-35.2
-37.5
3.3
3.3
0
0
0
0
0
0
3.4
3.4
3.4
3.4
0
3.4
0
-11.8
12.0
0
0
0
0
-37.7
3.3
0
0
-29.9
-29.9
0
0
0
3.4
5.1
3.3
3.3
3.4
3.4
0
5.0
3.4
3.3
3.4
3.4
-29.2
-29.2
0 0
3.3
-37.5
0 0 0
0 0 0 0 0
0 0 0 0
5.1
0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
52
Displa
y
contr
oller
Ser
ial
receiv
e
cir
cuit
Digit
output
cir
c
uit
Cloc
k
gener
at
or
DIG1
1/
SE
G42
51
DIG1
2/
SE
G41
50
DIG1
3/
SE
G40
49
DIG1
4/
SE
G39
48
DIG1
5/
SE
G38
47
DIG1
6/
SE
G37
46
DIG1
7/
SE
G36
45
SE
G35
XO
U
T
6
Vcc1
8
Vcc2
18
Vss
5
Vp
64
XIN
7
CS
SCK
3
SD
A
T
A
4
RESET
1
SE
G00
44 9
SE
G34
SE
G26
17 19
SE
G25
Segment
output cir
c
uit
Displa
y code
RAM
(8-bit x 60)
CGR
OM
(35-bit x 1
66)
CGR
OM
(35-bit x 1
6
)
code select
Co
d
e
wr
it
e
C
ode/
command
contr
ol
cir
cuit
DIG00
63 53
DIG1
0
IC402
: M66003-0131FP-R
18 digit 5 x 7 segment VFD controller/driver
2
dat
a
timing cloc
k
dot dat
a
wr
it
e
scan pulse
Segment/ Digit select/ output cir
cuit
IC401
: NJM4565M
Dual operational amplifier
8 2, 6 3, 5
1, 7
4
V+
–INPUT +INPUT
V–
OUTPUT
VIDEO AUDIO
USB
PHONES
VOLUME
OPTIMIZER
MIC
SCENE
HDMI
THROUGH
indicator
PURE
DIRECT
indicator
VIDEO
AUX
OPERATION (3)
OPERATION (5) OPERATION (4)
OPERATION (10)
OPERATION (6)
OPERATION (1)
MAIN ZONE ON/OFF STANDBY/ON
BD/DVD
J model
U, C, R, T, K, A, B, G, E, F, L models
TV
CD
INPUT
PROGRAM
(J model)
(U, C, R, T, K, A, B, G, E, F, L models)
FL DRIVER
to DIGITAL_CB20
P
age 120
B2
to OPERATION (2)_CB461
P
age 125
I5
to VIDEO (6)_CB333
P
age 129
L7
to VIDEO (1)_W3401
P
age 129
A3
to GUI_CB550
P
age 132
D9
Ohm
0
+
1.
0k
+1
.0k
+
1.
5k
+1
.8k
+
2.2k
+3.3k
+4.7k
+6.8k
+1
0.0k
+22.0k
+68.0k
V
0
– 0.1
5
0.1
5 – 0.42
0.43 – 0.70
0.71 – 0.99
1.0 – 1
.27
1.28 – 1
.56
1.
57 – 1
.86
1.86 – 2.1
4
2.1
4 – 2.4
2.4 – 2.65
2.66 – 2.91
2.92 – 3.1
7
A/D v
alue
(3.3 V=255)
0 – 1
1
1
2
– 32
33 – 54
55 – 77
78 – 98
99 – 1
2
0
1
21 – 1
4
3
1
44 – 1
6
5
1
66 – 1
8
5
1
86 – 205
206 – 225
226 – 245
KEY2
(1
34 pin)
PURE
DIRECT
S
TRAIGHT /
EFFECT
INFO
MEMOR
Y
PRESET
<
PRESET
>
FM
AM
TUNING
<
TUNING
>
——
Ohm
0
+
1.0k
+1
.0k
+1
.5k
+
1.
5k
+2.2k
+3.3k
+4.7k
+22.0k
+33.0k
V
0
– 0.1
5
0.1
5 – 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 v
alue
(3.3 V=255)
0 – 1
1
1
2
– 32
33 – 54
55 – 75
7
6
– 95
96 – 1
1
8
11
9
– 1
4
2
1
43 – 1
6
2
1
81 – 1
9
7
1
98 – 229
KEY1
(1
33 pin)
SCENE RADIO
SCENE
CD
SCENE
TV
SCENE BD/D
VD
ZONE2
ON/OFF
ZONE2
CONTR
O
L
——
MAIN ZONE
ON/OFF
TO
N
E
CONTR
OL
Ohm
0
+
1.
0k
+1
.0k
+
1.
5k
+1
.5k
+
2.2k
+3.3k
+4.7k
+22.0k
+33.0k
V
0
– 0.1
5
0.1
5 – 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 v
alue
(3.3 V=255)
0 – 1
1
1
2
– 32
33 – 54
55 – 75
7
6
– 95
96 – 1
1
8
11
9
– 1
4
2
1
43 – 1
6
2
1
81 – 1
9
7
1
98 – 229
KEY1
(1
33 pin)
SCENE RADIO
SCENE
CD
SCENE
TV
SCENE BD/D
VD
SLEEP
MUTE
—
—
S
T
ANDB
Y/
ON
T
ONE
CONTR
O
L
K
e
y det
ection f
or
A/D por
t
K
e
y input (A/D) pull-up r
esist
ance 1
0
k-ohms
RX-V1
0
65/HTR-6280
AX-V1
0
6
5
Ohm
0
+
1.0k
+1
.0k
+1
.5k
+1
.8k
+2.2k
+3.3k
+4.7k
+6.8k
+1
0.0k
+22.0k
+68.0k
V
0
– 0.1
5
0.1
5 – 0.42
0.43 – 0.70
0.71 – 0.99
1.0 – 1
.27
1.28 – 1
.56
1.57 – 1
.86
1.86 – 2.1
4
2.1
4 – 2.4
2.4 – 2.65
2.66 – 2.91
2.92 – 3.1
7
A/D v
alue
(3.3 V=255)
0 – 1
1
1
2
– 32
33 – 54
55 – 77
78 – 98
99 – 1
2
0
1
21 – 1
4
3
1
44 – 1
6
5
1
66 – 1
8
5
1
86 – 205
206 – 225
226 – 245
KEY2
(1
34 pin)
PURE
DIRECT
S
TRAIGHT / EFFECT
INFO
MEMOR
Y
PRESET
<
PRESET
>
C
A
TE
GOR
Y
<
FM
C
A
TE
GOR
Y
>
AM
TUNING CH
<
TUNING CH
>
——