Yamaha RX-V675 Service Manual page 135

A B C
RX-V675/HTR-6066/TSR-6750
OPERATION 1/3
1
1 2 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2
+ 3 . 3 F L D
2
P 2 4
P 2 5
P 2 6
3 P 2 7
P 2 8
P 2 9
P 3 0
P 3 1
P 3 2
P 3 3
P 3 4
Q 3 0 0 3 Q 3 0 0 4
P 3 5
P 3 6
G 1 8 I
G 1 7 I
Q 3 0 0 1 Q 3 0 0 2
4
G 1 6 I
- V P
5
+ 3 . 3 M
P S W _ D E T
R 3 0 1 0 R 3 0 1 4 R 3 0 1 8
K E Y 1
1 K 1 K 1 . 5 K 1 . 5 K
6
F G 1
D G N D
7
R 3 0 0 7 R 3 0 1 1 R 3 0 1 5 R 3 0 1 9
K E Y 2
1 K 1 K 1 . 5 K 1 . 8 K 2 . 2 K
T U N I N G A M F M
R 3 0 0 5 R 3 0 1 2
J K 3 0 1
1 K 1 K
C 3 0 0 3 R 3 0 1 3
8
YPAO
2 2 0
1 0 / 1 6
MIC R 3 0 0 4 R 3 0 2 0
M S J - 2 2 0 0 C _ A G
4 . 7 K 4 . 7 K
N J M 4 5 6 5 M
3
I C 3 0 3
2
O P E ( 6 )
R 3 0 2 4
N J M 4 5 6 5 M
5 C 3 0 0 9
7
I C 3 0 3
6
V -
9
L = 8 5 m m
S R A - 2 1 T - 3 / 5 2 9 8 T to chassis
F G 2
Key detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
0 Ω + 1.0 kΩ + 1.0 kΩ + 1.5 kΩ + 1.5 kΩ
Detected voltage value
0 – 0.15 V 0.15 – 0.42 V 0.43 – 0.70 V 0.71 – 0.97 V 0.98 – 1.24 V
at 171 pin
A/D value
0 – 11 12 – 32 33 – 54 55 – 75 76 – 96
(3.3 V=255)
10
RADIO NET TV BD/DVD ZONE
KEY1
(SCENE4) (SCENE3) (SCENE2) (SCENE1) CONTROL
0 Ω + 1.0 kΩ + 1.0 kΩ + 1.5 kΩ + 1.8 kΩ + 2.2 kΩ
Detected voltage value
0 – 0.15 V 0.16 – 0.42 V 0.43 – 0.70 V 0.71 – 0.99 V 1.00 – 1.27 V 1.28 – 1.56 V
at 170 pin
A/D value
0 – 11 12 – 32 33 – 54 55 – 77 78 – 99 100 – 121
(3.3 V=255)
PURE TUNING TUNING PRESET
KEY2 AM FM
DIRECT >> <<
D E F
V 3 0 0 1 1 8 - M T - 1 1 G N K
3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 5 0 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 6 0 6 1 6 2 6 3 6 4 6 5
C 3 0 1 5
0 . 1 / 1 6
C 3 0 2 3
P 8
0 . 1 / 5 0 ( F )
P 7 R 3 0 4 6
P 6 1 0 0 K
C 3 0 1 9
P 5
FL DRIVER
P 4 2 2 0 / 5 0
P 3
P 2
C 3 0 2 0
I C 3 0 1
P 1
3 3 0 / 6 . 3
M 6 6 0 0 3 - 0 1 3 1 F P - R C 3 0 2 1
V D D
0 . 1 / 1 6
X I N
C 3 0 2 2
X O U T R 3 0 4 0
3 6 K
V S S 6 8 P ( S L )
D T F L
C K F L
/ C E F L
/ R E S E T
+ 3 . 3 M
R 3 0 4 8
1 0 K
D 3 0 0 5
S I R - 5 0 5 S T A 4 7
T O N E
I N P U T
C O N T R O L
R 3 0 2 2 R 3 0 2 6 R 3 0 3 4 R 3 0 3 7
2 . 2 K 3 . 3 K 4 . 7 K
C 3 0 1 7
F G 1
1 0 0 0 P
R 3 0 2 3 R 3 0 2 7 R 3 0 2 8 R 3 0 3 1 R 3 0 3 3 R 3 0 3 8 R 3 0 4 4
3 . 3 K 4 . 7 K 6 . 8 K 1 0 K 2 2 K 6 8 K
P R E S E T M E M O R Y I N F O P R O G R A M
C o u n t e r m e a s u r e s o f D i s c h a r g e t e s t .
C B 3 0 1 C B 3 0 2
W 3 0 0 3
+ 1 2 V 12.1
M I C 0
E 0
- 1 2 V -12.1
M I C _ N _ D E T
3.3
P S W _ D E T 3.3
V +
Standby indicator
R 3 0 2 5
H D _ L E D
C 3 0 1 4 0
1
+ 3 . 3 M 3.3
8 . 2 K
1 0 / 1 6
D G N D 0
1 2 K F G 0
3 3 P ( C H )
F G 2
Q 3 0 0 5 MAIN ZONE
E
D T C 0 1 4 E U B T L
OPERATION (6)
+ 2.2 kΩ + 3.3 kΩ + 4.7 kΩ 22 kΩ 33 kΩ
1.25 – 1.53 V 1.54 – 1.84 V 1.85 – 2.22 V 2.23 – 2.62 V 2.63 – 3.04 V
97 – 119 120 – 142 143 – 163 182 – 197 198 – 209
MAIN ZONE TONE
ZONE2 INPUT > INPUT <
(power) CONTROL
+ 3.3 kΩ + 4.7 kΩ + 6.8 kΩ + 10 kΩ + 22 kΩ + 68 kΩ
1.57 – 1.86 V 1.87 – 2.14 V 2.15 – 2.39 V 2.40 – 2.65 V 2.66 – 2.91 V 2.92 – 3.17 V
122 – 144 145 – 166 167 – 186 187 – 205 206 – 226 227 – 246
PRESET PROGRAM PROGRAM
MEMORY INFO STRAIGHT
> < > <
G H
3 0 0 1 - 3 4 0 0
R E S I S T O R
R E M A R K S P A R T S
3 0 1 - 3 4 0
N O M A R K C A R B O N F I L M R E S I S T O R
C A R B O N F I L M R E S I S T O R
M E T A L O X I D E F I L M R E S I S T O R
M E T A L F I L M
M E T A L P L A T E R E S I S T O R
F I R E P R O O F C A R B O N
C E M E N T M O L D E D R E S I S T O R
F 2 F 1
S E M I V A R I A B L E
C H I P R E S I S T O R
6 8 6 9
VOLUME
E C 1 2 E 2 4 6 0 8 1 4
M A I N V O L U M E
S W 3 2 3
A B
R 3 0 6 2
4 7 K
R 3 0 6 1
4 7 K
+ 3 . 3 M
C B 3 0 4 W 3 0 0 5 C B 3 0 5
3.3
V O L _ R A V O L _ R A
V O L _ R B V O L _ R B
K E Y 2 3.3 K E Y 2
P D _ L E D P D _ L E D
+ 5 . 6 5.5 + 5 . 6
D G N D D G N D
F G 0 F G
F G F G
0
5 1 0 4 8 5 1 0 4 8
F G 3
Q 3 0 1 4
PURE
DIRECT
D G N D
D T C 0 1 4 E U B T L
Remote control
sensor
O P E ( 5 )
R P M 7 2 3 8 - H 9 R
U 3 0 0 1 OPERATION (5)
+ 5 . 6 + 3 . 3 F L D
R 3 0 5 0
Q 3 0 1 1
4 7 M C H 6 3 3 6 - T L - E L 3 0 0 1
S D D
1 0 0 U H
S C 5 9 6 4 - T D - E
T 3 0 0 1
Q 3 0 1 2
2 9
3
G D D 1
D G N D 4
Q 3 0 1 0
7
6
5 8
Q 3 0 1 3
1 2 R E G
S C 5 9 6 4 - T D - E
D T C 0 1 4 E U B T L
Switching frequency: 100kHz F 2
RMS 3.7V
D G N D
+ 5 . 6
F G 1
W 3 0 0 2
n o _ u s e
+ 3 . 3 M
R 3 0 6 3
+ 1 2 V - 1 2 V + 5 . 6
n o _ u s e
+ 1 2 V
M I C M I C
E
- 1 2 V
M I C _ N _ D E T M I C _ N _ D E T
P S W _ D E T P S W _ D E T
E
H D _ L E D
- V P
+ 3 . 3 M
D G N D
C 3 0 3 1
F G
1 0 0 0 P ( B )
C 3 0 3 2
1 0 0 0 P ( B )
F G 1
R 3 0 5 5
1 0 0 K
D G N D
t o D i g i t a l
Page 131 K9
to DIGITAL (1)_CB82
I J K
N O T I C E ( m o d e l )
C A P A C I T O R
J J A P A N
R E M A R K S P A R T S N A M E
U U . S . A
N O M A R K E L E C T R O L Y T I C C A P A C I T O R
C C A N A D A
N A M E T A N T A L U M C A P A C I T O R
R G E N E R A L
( P = 5 ) N O M A R K C E R A M I C C A P A C I T O R
T C H I N A
( P = 1 0 ) C E R A M I C T U B U L A R C A P A C I T O R
K K O R E A
P O L Y E S T E R F I L M C A P A C I T O R
A A U S T R A L I A
R E S I S T O R P O L Y S T Y R E N E F I L M C A P A C I T O R
B B R I T I S H
M I C A C A P A C I T O R
F I L M R E S I S T O R G E U R O P E
P P O L Y P R O P Y L E N E F I L M C A P A C I T O R
L S I N G A P O R E
S E M I C O N D U C T I V E C E R A M I C C A P A C I T O R
E S O U T H E U R O P E
R E S I S T O R
P O L Y P H E N Y L E N E S U L F I D E F I L M
S
V T A I W A N
C A P A C I T O R
F R U S S I A N
P L A T I N A M E R I C A
S B R A Z I L
H T H A I
IC301: M66003-0131FP-R
n o _ u s e
W 3 0 0 6
18 digit 5 x 7 segment VFD controller/driver
C O M
Display code
RAM
(8-bit x 60)
Code
write
Serial dot data
CS 2 data
write
SCK 3 receive
Code/
circuit
SDATA 4
command
control
circuit
code
select
XIN 7 Clock
timing Display
generator clock scan pulse
XOUT 6 controller
RESET 1
Vcc1 8
Vcc2 18
Vss 5
Vp 64
to chassis
PURE DIRECT
indicator
S T 3 0 1
R 3 0 7 5
J K 3 0 2 R 3 0 8 0
1 K 1 K
3 3 0 0 P / 1 0 0
R 3 0 7 7
L
1 P 5 6 0
R
PHONES 3 3 0 0 P / 1 0 0 R 3 0 7 8
SILENT CINEMA
1 P 5 6 0
G N D
H e a d P h o n e
OPERATION (1)
D 3 0 1 4
1 S S 3 5 5 V M
D 3 0 1 6
1 S S 3 5 5 V M
D 3 0 1 5
R 3 0 7 4
1 K
1 S S 3 5 5 V M
D 3 0 1 7
R 3 0 7 3
1 . 0
1 S S 3 5 5 V M Q 3 0 1 5
2 N 5 4 0 1 C - A T / P
-35.7V
- V P
F 1
D G N D
D C - D C / A C C o n v e r t e r f o r V F D
+ 3 . 3 F L D
+ 3 . 3 F L D
I C 3 0 2
R P 1 3 0 Q 3 3 1 D - T R - F
4 3 USB jack
Y C 2 8 8 A 0
1 2
D G N D
L 3 0 5 0
V A U X
B L M 1 8 H D 1 0 2 S N 1 D
C 3 0 4 0 B L M 1 8 H D 1 0 2 S N 1 D
V E
L 3 0 5 1
0 . 1 / 1 6
+ 1 2 V - 1 2 V
C 3 0 4 6
0 . 1 / 1 6
C 3 0 5 1
C 3 0 4 2
n o _ u s e
J 3 0 0 2
C 3 0 3 9 1 0 0 0 P
n o _ u s e
1 0 0 P ( S L )
C 3 0 4 3
C 3 0 5 2
1 0 0 P ( S L )
1 0 0 0 P
E
F G 1
t o O P E ( 2 )
Page 136 F1
to OPERATION (2)_CB343
L M N
RX-V675/HTR-6066/RX-A730/TSR-6750
IC302: RP130Q331D-TR-F
Voltage regulator
V DD 4 3 V OUT
Vref
Current Limit
CGROM
44 SEG00 CE 1 2 GND
(35-bit x 166)
Segment 19 SEG25
output
17 SEG26
circuit
CGROM
9 SEG34
(35-bit x 16) Pin No. Symbol Description
1 CE Chip Enable ("H" Active)
45 SEG35
2 GND Ground Pin
DIG11/ 3 V Output Pin
52 OUT
SEG42
4 V Input Pin
DIG12/ DD
51
SEG41
Segment/
DIG13/
Digit 50
SEG40
select/
DIG14/
49
output SEG39
circuit DIG15/
48
SEG38
IC303: NJM4565M (TE1)
DIG16/
47
SEG37 Dual operational amplifier
DIG17/
46
SEG36
V+
63 DIG00 8
Digit
output
circuit
53 DIG10
2, 6
–INPUT OUTPUT
1, 7
+INPUT
3, 5
V–
4
OPERATION (7)
O P E ( 7 )
W 3 0 0 7
C B 3 0 8
3.3 H P _ N _ D E T
t o M A I N
0 H P L
Page 141 H2
0 H P E
to MAIN (1)_W106
H P R
0
F r o m
P H L
V I D E O ( 1 )
O P E ( 1 )
S C N - X H
U S B
G N D
0
G N D
Page 134 K8
V B u s
to DIGITAL (1)_CB947
V B u s 5.2
W 3 0 0 9
C 3 0 6 0
1 0 0 0 P ( B )
S A N - P H
J 3 0 0 3
F G 0
n o _ u s e
G N D
0
Page 132 J9
+ D a t a 0
C 3 0 5 8 - D a t a 0 to DIGITAL (1)_CB952
1 0 / 1 0
V B u s 5.2
C 3 0 5 9
W 3 0 1 0
1 0 0 P ( S L )
P J 3 0 1
VIDEO
VIDEO
AUX
M T J - 0 3 2 - 2 1 B - 4 3 -
F G 3
★ 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.
135