Yamaha RX-V681 Service Manual page 117

A B C
1
DIGITAL 7/7
N C P U _ M C K
N C P U _ M C K
N C P U _ S D 0
to DIGITAL 5/7 N C P U _ S D 0
N C P U _ B C K
N C P U _ B C K
N C P U _ W C K
N C P U _ W C K
FRONT L
SORROUND L
D A _ S D _ F
D A _ S D _ F
D A _ S D _ S R
D A _ S D _ S R
D A _ S D _ S B
D A _ S D _ S B
D A _ S D _ C S W SURROUND BACK L
D A _ S D _ C S W
D A _ W C K
D A _ W C K CENTER/SUBWOOFER
D A _ B C K
to DIGITAL 6/7 D A _ B C K
2
P T Y _ S D O
P T Y _ S D O
D S P _ A D T _ S D O
D S P _ A D T _ S D O
M U X _ W C K
M U X _ W C K
M U X _ B C K
M U X _ B C K
H M C K
H M C K
H B C K / D S D C K
H B C K / D S D C K
H W C K / D S D _ R L
H W C K / D S D _ R L
to DIGITAL 1/7
S D 0 / D S D _ F L
S D 0 / D S D _ F L
S P D I F / D S D _ F R
S P D I F / D S D _ F R
H D M I _ A U D _ R T N
H D M I _ A U D _ R T N
T P
3 A
+ 3 . 3 D I R
L 9 4 0 3
B K P 1 0 0 5 H S 6 8 0 - T
R 9 4 3 7
DIGITAL (1)
D S P _ M I S O 1 0 K R 9 4 3 8
D S P _ M O S I 3 3
D G N D
R 9 4 6 4
D S P _ S C K M C / S C L
3 3
D I R 1 _ N _ C S R 9 4 3 1 M S / A D R 1
1 0 0
M O D E
N C P U _ S D 0 R X I N 7 / A D I N 0
N C P U _ W C K R X I N 6 / A L R C K I 0
N C P U _ B C K R 9 4 3 4 R X I N 5 / A B C K I 0
N C P U _ M C K 4 7 R 9 4 3 5 R X I N 4 / A S C K I 0
H D M I _ A U D _ R T N 4 7 R X I N 3
R 9 4 1 2
R 9 4 3 6
n o _ u s e S P D I F / D S D _ F R R X I N 2
R 9 4 3 3 4 7
D I R _ N _ R S T R S T
4 D G N D 1 0 0
R X I N 1
+ 3 . 3 D I R L 9 4 0 2
V D D R X
B K P 1 0 0 5 H S 6 8 0 - T
A D _ R
A D _ L
X L 9 4 1
D G N D 4 3
1 2
2 4 . 5 7 6 M H Z
A G N D
R 9 4 1 1 R 9 4 1 4
n o _ u s e n o _ u s e D G N D
0.000V
0.000V
2.473V
2.472V
C 9 4 0 8 C 9 4 1 0
n o _ u s e n o _ u s e
5
C B 9 4 3
+ 5 . 6 V
5.551V 1 + 5 . 6 V
(for service)
D G N D
0.000V 2 D G N D
P R Y
2.571V 3
P H I
V B 3 8 9 9 0
Page 120 I9
C B 9 4 4
to OPERATION (3)_W3704 + 3 . 3 M
3.299V 1 + 3 . 3 M
(RX-V681) D G N D
0.000V 2 D G N D
R 9 4 0 2
A C P W R _ D E T 1 0 0
3.297V 3
Page 123 I9 M C P U _ N _ R S T R 9 4 0 3 1 0 0
3.297V 4
D 9 4 0 1
P R Y
2.571V 5
to OPERATION (3)_W3704
T E S T 1 S S 3 5 5 V M
0.355V 6
(RX-A760) (U dest)
6 P H L
V B 8 5 8 5 0
Page 120 I8
5.556V D G N D
to OPERATION (3)_W3703
D G N D 0.000V W H 7 7 2 1 0
5.556V
(RX-V681) + 5 . 6 V 5.553V
0.000V
W H 9 2 9 5 0
+ 5 . 6 V
0.000V
Page 123 I7
to OPERATION (3)_W3703
(RX-A760)
7
P N 9 4 2
U S B V B U S
D 9 4 0 2
Page 118 K6
n o _ u s e 1 S S 3 5 5 V M
R 1 1 7 3 S 0 0 1 B - E 2 - F
to OPERATION (1)_W309 C B 9 4 1 L 9 4 0 1
B L M 2 1 P G 6 0 0 S N 1 D
+ 5 U S B V O U T V D D
5.167V 1
(RX-V681)
+ 5 U S B G N D G N D 6
5.167V 2
G N D A D J C E
0.000V 3
Page 121 J7
G N D
0.000V 4
to OPERATION (12)_W308
X H I 1
V L 8 4 4 8 0 5.168V
(RX-A760) R A L 0 3 5 P 0 1
0.000V
Q 9 4 0 1
8
D G N D
D G N D
Q 9 4 0 5
Q 9 4 0 6
D G N D D T C 0 4 4 E U B T L
D G N D
9
N O T I C E R E S I S T O R
( m o d e l )
R E M A R K S P A R T S N A M E
J J A P A N
U U . S . A N O M A R K C A R B O N F I L M R E S I S T O R ( P = 5 )
C C A N A D A C A R B O N F I L M R E S I S T O R ( P = 1 0 )
M E T A L O X I D E F I L M R E S I S T O R
R G E N E R A L ★ All voltages are measured with a 10M Ω /V DC electronic voltmeter.
T C H I N A M E T A L F I L M R E S I S T O R
★ Components having special characteristics are marked ⚠ and must be replaced
K K O R E A 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 F I L M R E S I S T O R with parts having specifications equal to those originally installed.
A A U S T R A L I A
B B R I T I S H C E M E N T M O L D E D R E S I S T O R ★ Schematic diagram is subject to change without notice.
G S T A N D A R D S E M I V A R I A B L E R E S I S T O R
C H I P R E S I S T O R
L S I N G A P O R E
E S O U T H E U R O P E
C A P A C I T O R
V T A I W A N
R E M A R K S P A R T S N A M E
F R U S S I A N
Details of colored lines
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
P L A T I N A M E R I C A
T A N T A L U M C A P A C I T O R
S B R A Z I L
10 N O M A R K C E R A M I C C A P A C I T O R
H T H A I
C E R A M I C T U B U L A R C A P A C I T O R
P O L Y E S T E R F I L M C A P A C I 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
M I C A C A P A C I T O R
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
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
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
C A P A C I T O R
D E F
A s i d e
N C P U _ W C K
M U X _ W C K
4 7
N C P U _ B C K
4 7 R 9 4 6 1
M U X _ B C K
R 9 4 2 8
N P S E L _ N _ O E
+ 3 . 3 D S P
N E T / P A R T Y D A C S E L E C T O R
/ S T S E L O U T
L L P A R T Y Y = A 1 6 1 5 1 4 1 3 1 2 1 1 1 0 9
L H N E T Y = B I C 9 4 5 T C 7 4 V H C 1 5 7 F T ( E L
H X L 1 2 3 4 5 6 7 8
D G N D
N P D A _ S E L 4 7
+ 3 . 3 D S P
M U X _ M C K 4 7 R 9 4 6 0
4 7 R 9 4 2 9
N C P U _ M C K
R 9 4 4 7
P T Y _ S D O
N C P U _ S D 0
A s i d e
8
V +
I C 9 4 7 I C 9 4 7 V - 4
I C 9 4 7 A s i d e
1
7 R 9 4 4 9 D I R _ A D T _ W C K
2
4 7 M U X _ W C K
D G N D T C 7 W H 3 2 F K
D I R _ A D T _ B C K
4 7
4 7
I C 9 4 7 R 9 4 1 0 M U X _ B C K
5 4 7
3 R 9 4 3 2
6 4
R 9 4 1 3
4 7
T C 7 W H 3 2 F K + 3 . 3 D S P
5
R 9 4 1 5
D I S T R I B U T I O N S E L E C T O R
/ S T S E L O U T 1 6 1 5 1 4 1 3 1 2 1 1 1 0 9
L L D S P Y = A I C 9 4 6 T C 7 4 V H C 1 5 7 F T ( E L
L H D I R Y = B 1 2 3 4 5 6 7 8
H X L
A D T _ N _ E N
D G N D
A D T _ S E L
R 9 4 5 1
n o _ u s e
R 9 4 6 2
4 7 X 4 4 7
D I R _ A D T _ S D O M U X _ M C K
R 9 4 4 4
D I R _ A D T _ W C K D I R _ A D T _ M C K
D G N D D G N D
D S P _ A D T _ S D O
D I R _ A D T _ B C K
D I R _ A D T _ S D O
M P I O _ B 1
A s i d e
DIR M P I O _ B 0 R 9 4 6 3 D I R _ A D T _ M C K
4 7
M P I O _ C 3 S D 0 / D S D _ F L
M P I O _ C 2 H W C K / D S D _ R L
M P I O _ C 1 H B C K / D S D C K
M P I O _ C 0 H M C K
N P S E L _ N _ O E
M P I O _ A 3 A V 4 _ D
M P I O _ A 2 A V 3 _ D
M P I O _ A 1 A V 2 _ D
M P I O _ A 0 A V 1 _ D
R 9 4 4 5
N P C M / I N T 1 D I R 1 _ N _ I N T
3 3 D A C Z 2 _ N _ M T
E R R O R / I N T 0 R 9 4 4 8
3 3
+ 5 A
L 9 4 0 6
B K P 1 0 0 5 H S 6 8 0 - T
+ 3 . 3 D I R D I R 1 _ N _ C S
2.473V
D I R _ N _ R S T
C 9 4 3 3
4 7 0 0 P / 2 5 ( B )
0.000V D I R 1 _ N _ I N T
L 9 4 0 4
+ 3 . 3 D I R
to DIGITAL 4/7
C 9 4 2 0 B K P 1 0 0 5 H S 6 8 0 - T
A G N D D G N D
D G N D
1 0 / 1 0 C 9 4 3 0
4 7 0 0 P / 2 5 ( B )
A C P W R _ D E T
C 9 4 3 4 M C P U _ N _ R S T
0 . 0 1 / 1 6 ( B )
C 9 4 4 5
0 . 0 1 / 1 6 ( B ) U S B _ V B U S _ P O N
C 9 4 4 8
+ 3 . 3 D _ P O N
0 . 0 1 / 1 6 ( B )
D A C Z 2 _ P O N
A G N D D G N D
3.273V 3.271V
+ 3 . 3 D S P + 3 . 3 N P D A C + 3 . 3 D S P + 3 . 3 D A C
I C 9 4 8 I C 9 4 9
R 5 5 2 7 K 0 0 1 D - T R R 5 5 2 7 K 0 0 1 D - T R
V i n V o u t V i n V o u t
1 4 1 4
G N D O n G N D O n
A C P W R _ D E T 2 G 3 2 G 3
M C P U _ N _ R S T
P R Y
T E S T
D G N D D G N D
3.291V
+ 3 . 3 D + 1 . 8 D
1.809
3 . 1 A 2 . 4 A
C 9 4 3 9 C 9 4 5 1
L 9 4 0 9 1 0 0 0 P ( B ) L 9 4 1 4 1 0 0 0 P ( B )
1 0 U H 1 0 U H
D G N D
4 3 2 1 4 3
I C 9 4 3 B D 9 3 2 9 A E F J I C 9 4 4
Y D 1 8 4 B 0
G 5 6 7 8 G 5 6
3 A
D G N D D G N D
No replacement
part available.
+ 5 . 6 V
D G N D
D G N D D G N D
5 4
2 3
Q 9 4 0 3
D T C 0 1 4 E U B T L
D G N D
U S B _ V B U S _ P O N
Red / full line: Power supply (+)
Red /dashed line: Power supply (-)
Orange: Signal detect
Yellow: Clock
Green: Protection detect
Brown: Reset signal
Blue: Panel key input
G H
RX-V681 RX-A760
+ 3 . 3 A
+ 3 . 3 N P D A C
DAC
N E T / P A R T Y D A C C 4 8 1 7
D V D D C P V D D 1 0 / 1 0
C 4 8 0 1
0 . 1 / 1 0 ( B J ) D G N D C A P P C 4 8 1 2
C 4 8 0 2 0 . 1 / 1 0 ( B J )
L D O O C P G N D
0 . 1 / 1 0 ( B J )
2 . 2 / 1 0
D A C Z 2 _ N _ M T X S M T C A P M C 4 8 1 1
R 4 8 1 2
A s i d e F M T V N E G C 4 8 1 8
C 4 8 2 5
4 . 7 K 2 . 2 / 1 6 R 4 8 2 1
N P D A _ W C K L R C K O U T L
1 . 5 K
N P D A _ S D O D I N O U T R R 4 8 1 8
1 . 5 K C 4 8 5 1
N P D A _ B C K B C K A V D D C 4 8 2 6
C 4 8 1 0
N P D A _ M C K S C K A G N D 0 . 1 / 1 0 ( B J ) n o _ u s e
R 4 8 3 0 F L T D E M P R 4 8 2 2
H : L o w C 4 8 5 6
4 . 7 K 4 . 7 K
C 4 8 0 7
n o _ u s e
0 . 1 / 1 0 ( B J )
D 9 4 0 6
1 S S 3 5 5 V M
D G N D A G N D
D 9 4 0 7
1 S S 3 5 5 V M
+ 3 . 3 A
+ 3 . 3 D A C
DAC
3 2 1 A D T D A C C 4 8 7 0
6 7 8 D V D D C P V D D 1 0 / 1 0
D G N D C A P P
L D O O C P G N D
2 . 2 / 1 0
X S M T C A P M C 4 8 6 8
A s i d e F M T V N E G C 4 8 7 1
C 4 8 7 2
2 . 2 / 1 6 R 4 8 4 7
D A _ W C K L R C K O U T L
1 . 5 K
D S P _ A D T _ S D O D I N O U T R R 4 8 4 6
D A _ B C K R 4 8 2 7 B C K A V D D 1 . 5 K C 4 8 7 3
C 4 8 6 7
D A _ M C K 4 7 R 4 8 2 8 S C K A G N D 0 . 1 / 1 0 ( B J )
4 7 F L T D E M P
H : L o w
C 4 8 6 6
0 . 1 / 1 0 ( B J )
D G N D A G N D
+ 3 . 3 A
+ 3 . 3 D A C
DAC
N P S E L _ N _ O E F D A C
C 4 8 2 1
N P D A _ S E L
N P D A _ S E L D V D D C P V D D 1 0 / 1 0
A D T _ N _ E N C 4 8 0 3
A D T _ N _ E N 0 . 1 / 1 0 ( B J ) C 4 8 1 9
D G N D C A P P
C 4 8 0 4 0 . 1 / 1 0 ( B J )
A D T _ S E L A D T _ S E L
0 . 1 / 1 0 ( B J ) L D O O C P G N D
2 . 2 / 1 0
X S M T C A P M C 4 8 1 5
D A C Z 2 _ N _ M T R 4 8 1 4
A s i d e F M T V N E G C 4 8 2 3
C 4 8 2 7
D S P _ M I S O 4 . 7 K 2 . 2 / 1 6 R 4 8 2 3
D S P _ M I S O D A _ W C K L R C K O U T L
D S P _ M O S I
D S P _ M O S I D A _ S D _ F D I N O U T R R 4 8 1 9 4 7 0
D S P _ S C K
D S P _ S C K D A _ B C K R 4 8 0 3 B C K A V D D 4 7 0 C 4 8 5 2 C 4 8 2 8
C 4 8 1 3
D I R 1 _ N _ C S
D A _ M C K 4 7 R 4 8 4 0 S C K A G N D 0 . 1 / 1 0 ( B J )
D I R _ N _ R S T
4 7 R 4 8 3 2 F L T D E M P R 4 8 2 5
D I R 1 _ N _ I N T H : L o w C 4 8 5 7
4 . 7 K 4 . 7 K
C 4 8 0 8
R M -
R M - 0 . 1 / 1 0 ( B J )
R M + C 4 8 7 4
R M + D G N D A G N D
D C _ T R G 1
D C _ T R G 1 n o _ u s e
A C P W R _ D E T
P R Y
P R Y
M C P U _ N _ R S T
T E S T + 3 . 3 A
T E S T
+ 3 . 3 D A C
U S B _ V B U S _ P O N
DAC
+ 3 . 3 D _ P O N
D A C _ P O N
D A C _ P O N
C S W D A C C 4 8 2 2
D A C Z 2 _ P O N
H D M I _ P O N D V D D C P V D D 1 0 / 1 0
H D M I _ P O N C 4 8 0 5
0 . 1 / 1 0 ( B J ) D G N D C A P P C 4 8 2 0
C 4 8 0 6 0 . 1 / 1 0 ( B J )
0 . 1 / 1 0 ( B J ) L D O O C P G N D
2 . 2 / 1 0
X S M T C A P M
C 4 8 1 6
A s i d e R 4 8 1 6 F M T V N E G C 4 8 2 4
2 . 2 / 1 6 C 4 8 2 9
D A _ W C K 4 . 7 K L R C K O U T L R 4 8 2 4
R 4 8 2 0 4 7 0
D A _ S D _ C S W D I N O U T R
R 4 8 0 8 4 7 0 C 4 8 5 3 C 4 8 3 0
D A _ B C K B C K A V D D
C 4 8 1 4
4 7 0 . 1 / 1 0 ( B J )
D A _ M C K R 4 8 4 1 S C K A G N D
4 7 R 4 8 3 9
F L T D E M P R 4 8 2 6
4 . 7 K H : L o w 4 . 7 K C 4 8 5 8
C 4 8 0 9
0 . 1 / 1 0 ( B J )
A G N D
D G N D
+ 3 . 3 A
+ 3 . 3 D A C
DAC
S R D A C
C 4 8 4 3
D V D D C P V D D 1 0 / 1 0
D A C _ P O N C 4 8 3 1
0 . 1 / 1 0 ( B J ) C 4 8 4 1
D G N D C A P P
D A C Z 2 _ P O N C 4 8 3 2 0 . 1 / 1 0 ( B J )
0 . 1 / 1 0 ( B J ) L D O O C P G N D
2 . 2 / 1 0
X S M T C A P M C 4 8 3 9
R 4 8 2 9
A s i d e F M T V N E G C 4 8 4 5
2 . 2 / 1 6 C 4 8 4 7
D A _ W C K 4 . 7 K L R C K O U T L R 4 8 3 5
+ 5 . 6 V
D A _ S D _ S R D I N O U T R R 4 8 3 3 4 7 0
D A _ B C K R 4 8 0 7 B C K A V D D 1 . 2 K C 4 8 5 4 C 4 8 4 8
C 4 8 3 7
D A _ M C K 4 7 R 4 8 4 2 S C K A G N D 0 . 1 / 1 0 ( B J )
4 7 R 4 8 4 4 F L T D E M P R 4 8 3 7
4 . 7 K H : L o w 4 7 0 C 4 8 5 9
C 4 8 3 5
0 . 1 / 1 0 ( B J )
D G N D A G N D
+ 3 . 3 A
D G N D
+ 3 . 3 D A C
2 1 DAC
B D 9 3 2 8 F J
Y D 9 6 0 A 0
7 8
S B D A C C 4 8 4 4
2 A
D V D D C P V D D 1 0 / 1 0
C 4 8 3 3
0 . 1 / 1 0 ( B J ) D G N D C A P P C 4 8 4 2
C 4 8 3 4 0 . 1 / 1 0 ( B J )
L D O O C P G N D
0 . 1 / 1 0 ( B J )
2 . 2 / 1 0
X S M T C A P M
C 4 8 4 0
A s i d e R 4 8 3 1
D G N D F M T V N E G C 4 8 4 6
C 4 8 4 9
4 . 7 K 2 . 2 / 1 6 R 4 8 3 6
D A _ W C K L R C K O U T L
R 4 8 3 4 4 7 0
D A _ S D _ S B D I N O U T R
4 7 0 C 4 8 5 5
D A _ B C K R 4 8 0 4 B C K A V D D C 4 8 5 0
C 4 8 3 8
4 7 0 . 1 / 1 0 ( B J )
D A _ M C K R 4 8 4 3 S C K A G N D
4 7 R 4 8 4 5 F L T D E M P R 4 8 3 8
J 9 4 0 7
+ 3 . 3 D _ P O N H : L o w C 4 8 6 0
4 . 7 K 4 . 7 K
0 C 4 8 3 6
0 . 1 / 1 0 ( B J )
D G N D A G N D
J 9 4 0 8 H D M I _ P O N
n o _ u s e
I C 4 8 1 - 4 8 6
IC943 :BD9329AEFJ
IC941: R1173S001B-E2-F
IC944 :BD9328FJ
Voltage regulator
1ch step-down DC/DC converter
V DD 4 3 V OUT
VCC
EN
7 VREF OSC
OPEN
SHUTDOWN
Vref
UVLO
Current Limit
IBIAS
TSD
CE 1 2 GND
FB
ERR
5
Pin No. Symbol Description
COMP SLOPE
CE Chip Enable ("H" Active) PWM
1
6
2 GND Ground Pin
SS
3 V Output Pin 8 Soft Start
OUT
4 V Input Pin
DD
I J K
D S P 1 _ M C K
D S P 1 _ M C K
D S P 2 _ M C K
D S P 2 _ M C K
D I R _ B C K to DIGITAL 6/7
D I R _ B C K
D I R _ W C K
D I R _ W C K
D I R _ S D O
D I R _ S D O
6 8 0 P ( S L )
N C P U _ A D T _ M C K
N C P U _ A D T _ M C K
N C P U _ A D T _ B C K
6 8 0 P ( S L ) N C P U _ A D T _ B C K to DIGITAL 5/7
N C P U _ A D T _ W C K
N C P U _ A D T _ W C K
N C P U _ A D T _ S D O
N C P U _ A D T _ S D O
C B 9 4 5
N P L R M - R M - 0.000V
1
R M + R M +
N P R 2 0.000V
D G N D
3 0.000V
D G N D Page 120 K1
4 0.000V
A V 4 _ D A V 4 _ D
5 0.000V
to OPERATION (4)_CB381
D G N D
6 0.000V
A V 3 _ D A V 3 _ D (RX-V681)
7 0.333V
D G N D
D G N D 8 0.000V
A V 2 _ D A V 2 _ D 0.334V
9 Page 123 I1
+ 5 D S P 5.001V
+ 5 D S P 1 0
A V 1 _ D A V 1 _ D 0.191V to OPERATION (4)_CB381
1 1
D D C C _ _ T T R R G G 1 1 D C _ T R G
1 2 3.301V (RX-A760)
+ 5 A E
1 3 0.000V
+ 5 A
+ 5 A 1 4 4.989V
+ 3 . 3 A
+ 3 . 3 A 1 5 3.294V
3.294V
5 2 4 1 8
6 8 0 P ( S L )
V Q 9 6 1 8 0
6 8 0 P ( S L ) 0.000V
C B 9 4 6
D A S B L D A S B L
1 5 0.000V
A G N D
1 4 0.000V
D A S B R D A S B R
1 3 0.000V
A G N D
1 2 0.000V
D A S L D A S L
A D T L 1 1 0.000V
A G N D
1 0 0.000V Page 125 B6
A D T R
D A S R D A S R 0.000V
9 to MAIN (1)_CB154
A G N D 0.000V
8
D A C D A C 0.000V
7
A G N D
6 0.000V
D A S W D A S W
5 0.000V
A G N D
4 0.000V
D A F L D A F L
3 0.000V
A G N D
2 0.000V
D A F R D A F R
1 0.000V
5 2 1 4 7
V F 6 6 7 6 0
C B 9 4 8
N P L N P L
7 0.000V
A G N D
n o _ u s e 6 0.000V Page 125 B6
N P R N P R
0.000V
n o _ u s e 5
A G N D to MAIN (1)_CB155
0.000V
4
0 . 0 0 2 2 / 6 3 A D _ L A D L
0.000V
3
A G N D
0.000V
2
A D _ R A D R
0 . 0 0 2 2 / 6 3 1 0.000V
5 2 1 4 7
V K 0 2 5 1 0
A G N D
C B 9 4 9 Page 125 B7
( 1 0 0 5 )
D A F L A D T L A D T L
3 0.000V
J 4 8 2 0
A G N D to MAIN (1)_W116
D A F R 2 0.000V
A D T R 0 A D T R
1 0.000V
P H I
V B 3 8 9 9 0
A G N D
+ 1 . 8 D + 3 . 3 D + 3 . 3 A + 5 A
C 9 4 6 2
n o _ u s e
C 9 4 8 8 C 9 4 9 1 C 9 4 5 9
C 9 4 6 3
n o _ u s e n o _ u s e n o _ u s e
+ 3 . 3 A 0 . 1 / 1 0 ( B J ) C 9 4 8 9 C 9 4 9 2 C 9 4 6 0
C 9 4 6 4 n o _ u s e n o _ u s e n o _ u s e
C 9 4 9 0 C 9 4 9 3 D G N D
3.291V n o _ u s e
n o _ u s e n o _ u s e
n o _ u s e 0.000V C 9 4 6 5 D G N D
C 9 4 9 7 C 9 4 9 4
n o _ u s e n o _ u s e
n o _ u s e n o _ u s e
0 . 0 0 2 2 / 6 3 A G N D C 9 4 6 6 C 9 4 9 8 C 9 4 9 5
n o _ u s e n o _ u s e n o _ u s e
C 9 4 9 9
C 9 4 6 7
0 . 0 0 2 2 / 6 3 D G N D n o _ u s e
n o _ u s e
D G N D A G N D D G N D
D A C
D A S W
P N 9 4 1 P N 9 4 5 P N 9 4 6
n o _ u s e n o _ u s e
# 1 8 L = 9 0 :
W S 4 8 8 5 0
n o _ u s e
n o _ u s e
0 . 0 0 2 2 / 6 3
0 . 0 0 2 2 / 6 3
D A S L
D A S R
n o _ u s e
n o _ u s e
0 . 0 0 2 2 / 6 3
0 . 0 0 2 2 / 6 3
D A S B L
D A S B R
S h e e t 7 : D I R & D A C
I C / C B / X L : 9 4 0 - 9 4 9 & 4 8 1 - 4 8 9
S T / P N / W : 9 4 1 - 9 4 9 & 4 8 1 - 4 8 9
O H T E R : 9 4 0 1 - 9 4 9 9 & 4 8 0 1 - 4 8 9 9
IC948–949: R5527K001D-TR
3A Load switch IC
V
V IN 1 4 OUT
5V
VREG
BST Charge Soft Reverse
1
Pump Start Detector
OCP
12V
VIN
2
ON
LVS 3 2 GND
S
DRV SW OUTPUT
3
LOGIC
R
LVS Pin No. Symbol Description
1 V IN Supply Input Pin
2 GND Ground Pin
ON
3 ON/OFF Control Pin, Active High/Low
4 Switch Output Pin
V OUT
4
GND
L M N
RX-V681/RX-A760
IC945, 946: TC74VHC157FT
Quad 2-channel multiplexer
2
1A
φ A
4
1Y
3 φ B
1B
5
2A
φ A
7
2Y
φ B
2B 6
11
3A
φ A
9
3Y
10 φ B
3B
14
4A
φ A
12
4Y
φ B
13
4B
1
SELECT
φ A
φ B
15
ST
IC947 : TC7WH32FK
Dual 2-input OR gate
V 1Y 2B 2A
CC
8 7 6 5
1 2 3 4
1A 1B 2Y GND
IC942 : PCM9211PTR
216-kHz digital audio interface transceiver (DIX) with stereo ADC and routing
FILT
43
AUXIN0
AUTO
RXIN7
RXIN0 DIR
RXIN0 37 DIR 20 SCKO
RXIN1 ADC DOUT
RXIN1 35 MAIN 19
PLL BCK
OUTPUT
RXIN2 AUXIN0
RXIN2 33 PORT 18 LRCK
SCKO/BCK/LRCK
RXIN3 AUXIN1
RXIN3 32 17 DOUT
RXIN4 Lock:DIR AUXIN2
RXIN4/ASCKIO 31
Unlock:ADC
RXIN5
RXIN5/ABCKIO 30 Clock/Data
Recovery
RXIN6
RXIN6/ALRCKIO 29
RXIN7 AUTO
RXIN7/ADIN0 28
DIR
RXIN8 Lock ADC
MPIO_A0 3
Detection
RXIN9 DIT
4 AUXIN0
MPIO_A1 MPIO_A
SELECTOR RXIN10 AUXIN1
MPIO_A2 5
RXIN11 RECOUT0 AUXIN2
MPIO_A3 6
DITOUT RECOUT1
RECOUT0
MPO0
RECOUT1 MPO0/1 15
SELECTOR
ADC 16 MPO1
DITOUT
VINL 47
ADC Mode
ADC
Control
VINR 48
VCOM 44 Com. Supply
AUTO
ADC Standalone DIR
MPIO_C0 7 11 MPIO_B0
ADC
8
MPIO_C1 MPIO_C AUXOUT MPIO_B 12 MPIO_B1
SELECTOR AUXIN0 SELECTOR
MPIO_C2 9 13 MPIO_B2
AUXIN1 AUXIN2
AUXIN1
MPIO_C3 10 14 MPIO_B3
AUXIN2
ADC Clock
(SCK/BCK/LRCK)
Divider
XTI 39
OSC
XTO 40
XMCKO SBCK/SLRCK
Secondary SCK/LRCK
(To MPIO_A)
XMCKO (To MPIO_A and MPO0/1) Divider
Divider
Selector
REGISTER EXTRA DIR FUNCTIONS
MC/SCL 25 1 ERROR/INT0
SPI/I 2 C
DIR DIR
INTERFACE Function DIR CS ERROR DETECTION
MDI/SDA 24 2 NPCM/INT1
Control (48-bit) PC and PD IS Calculator
Non PCM DETECTION
MDO/ADR0 23
Is Calculator
MPIO_A
MS/ADR1 26 Flags
GPIO/GPO DIT CS DIR All Port
Data (48-bit) Interrupt IS Calculator DTS-CD/LD Detection MPIO_B
Validity Flag
MPIO_C
User Data
POWER SUPPLY Channel Status Data MPO0
RST 34 Reset and BFRAME Detection MPO1
Mode ADC DIR DIR ALL
MODE 27 Interrupt System
Set ANALOG ANALOG ANALOG
46 45 42 41 36 38 22 21
V C C A D A G N D A D V C C A G N D VDDRX GNDRX D V D D D G N D
IC481, 486: PCM5101APWR
IC482–485: PCM5102APWR
106 dB audio selector DAC with PLL and 32-bit, 384 kHz PCM interface
Current
Segment 6
OUT L
DIN (I 2 S) 14
DAC
Current
Segment 7 OUT R
DAC
Zero
Data
Advanced Mute Control
Detector
Clock Halt
Detection
1 CPVDD (3.3V)
LRCK 15
Power 8 AVDD (3.3V)
BCK 13
PLL Clock 20
Supply DVDD (3.3V)
12
MCK UVP/Reset POR Ch. Pump
GND
3,9,19
5 4 2
117