Yamaha PX10 Service Manual page 141

A B C
■AUDIO 002 CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3)
+ 5 A
D 6 1 5
D B 3 J 3 1 4 F 0 L
D P 2 0 0 ( C l a s s D )
- 5 A
001:Q7
LPFA
003:Q6 I-SENSE_A
003:M2 PSTEMP
D e f a u l t S e t t i n g : M a s t e r M o d e
M a s t e r S l a v e
C 6 0 1 , C 6 0 2
R 6 0 3 , R 6 0 4
M o u n t N o M o u n t
R 6 0 6 , R 6 0 2
X L 6 0 1
C 4 5 6 , C 4 5 8
D 4 1 3
I C 4 1 2 , I C 4 1 5
R 6 0 5 , R 6 0 1 N o M o u n t M o u n t
1 0 0 0 P ( B )
t a b l e 5
Q 4 0 6 , Q 4 0 7
R 4 8 4 , R 4 8 5
M o d e l R 6 5 5 , 6 5 6 R 6 3 1 , 6 3 4
R 4 8 7 , R 4 7 3
P X 1 0
C 5 1 4 , I C 4 2 3 1 5 0 k 3 9 K
C 5 1 9 , R 4 8 6
P X 8 1 5 0 k 3 9 K
I C 6 1 4 , C 7 0 8
P X 5 1 0 0 k 3 0 K
R 7 6 7
P X 3 1 0 0 k 3 0 K
0 . 1 / 1 6
T P 7 4 1
G N D D P
n o _ u s e
R 6 2 4
T P 6 0 2 T P 6 0 4
0
R 7 1 3
- 5 A
C 6 0 1
R 6 0 3
0
2 . 7 K
8 P ( C H )
1
D V S S
2
X T A L V S S
3
X O
C 6 0 2
4
X I
8 P ( C H ) 5
X T A L G N D
T P 6 0 3 DIGITAL POWER AMPLIFIER
6
C L K I N S
7
F S S E L A 0
8
F S S E L A 1
9
F S S E L B 0
I C 6 1 4
7 6 8 k H z
R 7 6 7
1 0
CLKINS F S S E L B 1
2 4 0
001:O10 1 1
T C 7 S H 0 4 F U A D D R E S S 0
1 2
A D D R E S S 1
1 3
Z E R O D E T
1 4
T E S T
1 5
M S S E L
1 6
D G N D
7 6 8 k H z
R 6 1 3
CLOCK 1 7
C L K O U T
3 9
001:K11 1 8
C L K I N B
1 9
T P 6 0 1 D V S S
2 0
D V S S
- 5 A
+ 3 . 3 D
G N D D P
001:B8 SDA-DP2
001:B8
SCL-DP2
R 6 1 8
001:B9 /AMP-MUTE-A
8 2
R 6 3 5 R 6 2 0
001:B8
/AMP-MUTE-B
0 8 2
001:B9 /PROT-A
001:B8 /PROT-B
T P 7 4 4
R 7 9 6 R 7 9 9
0 0
I C 6 0 3 I C 6 0 3
T P 7 4 2 T P 7 4 3
8 9 6 5
INVERTER
001:B9 /CLIP-B
T P 7 3 2
T P 7 3 5
R 9 1 9 R 9 2 0
2 1 4 3
001:B9 /CLIP-A
0 0
T P 7 3 0 I C 6 0 3 I C 6 0 3
T P 7 3 3
T C 7 4 V H C 1 4 F ( E L , K T C 7 4 V H C 1 4 F ( E L , K
T P 7 3 1
T P 7 3 4
C L I P S I G N A L
G N D D P
003:Q9 CURLB
003:Q9 CURHB
003:Q4 I-SENSE_B
001:Q9 LPFB
+ 3 . 3 D
+ 5 A I C 6 0 3
1 4
- 5 A
D 6 1 6 V +
D B 3 J 3 1 4 F 0 L I C 6 1 4 I C 6 0 4
C 7 0 1
5 5
0 . 1 / 1 6
V + V +
1 2 1 3
I C 6 0 3
V -
1 0 1 1
I C 6 0 3
I C 6 0 3 7
G N D D P
INVERTER
V - V -
3 3
I C 6 1 4 I C 6 0 4
- 5 A
28CC1-2001158965-2
3
D E F G
- 5 A
T P 6 2 3
R 6 5 5
t a b l e 5
R 6 3 9
1 0 0 K ( D )
T P 6 2 6
C 6 2 2
T P 6 1 4
0 . 2 2 / 1 6
+ V B
R 6 4 0
( D )
1 0 0 K
T P 6 3 2
C 6 2 4
C 6 3 6
0 . 2 2 / 1 6
T P 6 1 8
2 2 / 5 0
C 6 0 7
+ 5 A
G N D D P
R 6 4 5
R 6 4 3
1 0 0
1 0 0
C 6 2 9
- 5 A
1 0 / 1 0
6 0
C 6 8 6
A V S S A R 6 2 1
5 9
I N P A 0
R 6 5 1 3 P ( C H )
5 8
I N M A
0
5 7
A G N D A
5 6
O F F T A G N D D P
5 5
L F A
5 4
M U T E A _ N
5 3
O U T A
D P 2 0 0
5 2
O U T A X
C 6 9 2
5 1
M B M N T
Y D A 1 7 7 - V Z C 6 2 7
5 0 1 0 0 P ( S L ) PWM _ OUTBX 003:A5
V R E F
I C 6 0 1
0 . 1 / 1 6
4 9
O U T B X
S l a v e A d d r e s s : 0 x 6 F 4 8 PWM _ OUTB 003:A5
O U T B
4 7 MUTEB _ N 003:A6
M U T E B _ N
4 6
L F B
4 5
O F F T B Z 8 1 2
J C 3 . 0
4 4
A G N D B
C 6 8 7
4 3 R 6 5 2
I N M B
0 R 6 1 9
I N P B 3 P ( C H )
4 2 G N D D P B
A V S S B
0
4 1
+ 5 A
1 0 / 1 0
C 6 2 1
R 6 4 1
1 0 0 K
T P 6 1 7
( D )
C 6 2 3
T P 6 1 5
0 . 2 2 / 1 6
R 6 4 2
1 0 0 K
( D )
T P 7 4 5
C 6 2 5
0 . 2 2 / 1 6
T P 6 1 3
- 5 A
- V B
T P 6 2 4
R 6 5 6
t a b l e 5
- 5 A
T P 7 1 5
3 3 P ( C H )
+ 1 5 A
8 8 8
I C 6 0 5 I C 6 0 2 I C 6 0 6
R 7 5 7
V + V + V +
t a b l e 4
( D )
5
I C 6 0 7 0 . 1 0 . 1 0 . 1
V + T P 7 1 4
6
C 6 3 7 I C 6 0 6
0 . 1 0 . 1 0 . 1 5
2 2 / 5 0
N E 5 5 3 2 D R
OP AMP
G N D D P
V - V -
V - V -
I C 6 0 2 I C 6 0 6
3 4 I C 6 0 5 4 4
- 1 5 A
G N D D P
I C 6 0 7
: Not installed （ 未実装）
H I J K
table4
t a b l e 1
Model GAIN R715,757 R752,764 M o d e l C673
C l a s s - D A M P
PX10 8.07dB 18K 390
T o t a l G A I N = 2 2 . 0 d B PX10 390u/160V
PX8 7.11dB 15k 220
T P 6 3 9 PX8 390u/160V
PX5 7.11dB 15k
220
C 6 4 0
PX3 5.84dB 6.8k PX5 470u/100V
4.7k
1 0 P ( C H )
PX3
470u/100V
R 6 6 1
1 . 3 K ( D )
N E 5 5 3 2 D R
R 6 6 5 R 7 6 0
6 1 / 4 P 1 2 K 1 / 4 P 1 2 K T P 6 5 3
I C 6 0 2
T P 6 4 5 T P 6 5 4
T P 6 2 7 7
T P 7 3 8 T P 6 3 0
C 6 2 8 C 6 9 3
R 6 6 6
5 R 7 6 1
1 / 4 P 1 2 K
T P 6 3 8 1 / 4 P 1 2 K
1 0 0 0 P ( C H )
3 3 P ( C H )
T P 6 4 6
R 7 1 5 R 7 5 2 R 7 5 3
f c = 8 8 4 H z
t a b l e 4 t a b l e 4 2 1 8 0 K
T P 6 3 7
( D ) T P 7 1 9
2 ( D )
R 6 5 8 I C 6 0 2
1
I C 6 0 6 OP AMP
1 2 2 K
3
N E 5 5 3 2 D R
( D )
3 N E 5 5 3 2 D R
OP AMP
T P 6 7 0
CLASS D AUDIO (FET) DRIVER
T P 6 5 7
I C 6 1 2
S I 8 2 4 4 B B - D - I S 1
T P 6 6 2
1 1 6
P W M
V D D A
2 1 5
N C V O A
3 1 4
V D D I
G N D A
4 1 3
G N D I N C T P 6 6 3
R 6 7 4
5 1 2 T P 6 6 5
D I S A B L E
N C
1 0 0
T P 6 5 9 6 1 1
D T V D D B
7 1 0
N C V O B
C 6 0 4
8 9
G N D B
V D D I
T P 7 1 2
0 . 1 / 1 6
C 6 4 8
- 5 A
0 . 1 / 1 6
INVERTER
T P 6 4 2
I C 6 0 7
2 4
R 6 8 1
2 . 2
T C 7 S H 0 4 F U
T P 6 4 4 1 / 4
I C 6 0 4
2 4
T C 7 S H 0 4 F U
R 9 1 8
0
CLASS D AUDIO
T P 6 7 1
(FET) DRIVER
I C 6 1 3
T P 6 6 0 S I 8 2 4 4 B B - D - I S 1
T P 6 6 4
1 1 6
P W M
V D D A
2 1 5
N C V O A
3 1 4
V D D I
G N D A
T P 6 6 7
4 1 3
G N D I N C
R 6 7 6 T P 6 6 6
5 1 2
D I S A B L E
T P 6 6 1
1 0 0 N C
6 1 1
D T V D D B
7 1 0
T P 6 5 8 N C V O B
8 9 C 6 3 1
G N D B
V D D I
T P 7 1 3
0 . 1 / 1 6
C 6 4 7
- 5 A
0 . 1 / 1 6
R 6 8 2
2 . 2
1 / 4
C l a s s - D A M P
T o t a l G A I N = 2 2 . 0 d B
T P 6 4 0
T P 6 3 5
C 6 4 1
1 0 P ( C H )
R 6 6 2
T P 6 4 7 T P 6 5 5
1 . 3 K
( D ) R 6 6 7 R 7 6 2
T P 6 4 1
6 1 / 4 P 1 2 K 1 / 4 P 1 2 K
I C 6 0 5
R 6 6 8 R 7 6 3
T P 7 1 6 7
C 6 9 5
T P 6 2 8 T P 6 3 1 N E 5 5 3 2 D R 5 1 / 4 P 1 2 K 1 / 4 P 1 2 K
T P 6 4 8
T P 6 5 6
C 6 9 4
1 0 0 0 P ( C H )
R 7 6 4
R 7 5 5
T P 6 3 6
t a b l e 4
1 8 0 K
( D )
T P 7 1 8
2
R 6 5 7 I C 6 0 5
1 OP AMP
7 2 2 K 3 N E 5 5 3 2 D R
( D )
f c = 8 8 4 H z
T P 6 4 3
L M N
R694~697,768
676 Q605 608 L601,603 L602,604 J601,602 R672,673 R772 775 C677,678
R770,771,782
FDP2710 - 3.9k 3300p
11u 11u 3.9k 22
-
FDP2710 11u 11u 22 3.9k 3300p
3.9k
1000p
FDP52N20 20u - 1.8k 68 1.5k
FDP52N20 20u - 1000p
1.8k 68 1.5k
A c h P O W E R A M P A c h P O W E R A M P
+ V B + V B 0
+ o u t p u t - o u t p u t
A c h B a l - A M P
G A I N = 2 5 . 3 d B
T P 6 8 0
T P 6 7 7
R 6 8 8 R 7 3 4
1 / 4 P 2 0 K
3 9 0
R 6 8 4
1 / 4 P 2 0 K
R 6 8 5
Q 6 0 5
1 / 4 P 2 0 K
R 6 9 4
L 6 0 1 L 6 0 3
t a b l e 1
R 7 6 8 t a b l e 1 t a b l e 1
R 6 8 9 t a b l e 1
4 . 7
D 6 0 5
R F 0 8 1 M 2 S T R
T P 6 7 3
J 6 0 1
Q 6 0 6
R 6 9 5
t a b l e 1
R 7 7 0 L 6 0 1
R 6 9 0 t a b l e 1
P G S
4 . 7
D 6 0 6
T P 6 7 4 R F 0 8 1 M 2 S T R
P G 1
V D R A
R 7 3 5
3 9 0
T P 6 8 1
B L 0 2 R N 1 - R 6 2 T 4
- V B
- V B 0
+ V B
T P 6 8 2
T P 6 7 8
R 6 9 1 R 7 3 6
1 / 4 P 2 0 K 3 9 0
R 6 8 6
1 / 4 P 2 0 K
R 6 8 7
Q 6 0 7
1 / 4 P 2 0 K
R 6 9 6
L 6 0 2 L 6 0 4
t a b l e 1 R 7 7 1
t a b l e 1 t a b l e 1
R 6 9 2 t a b l e 1
4 . 7
D 6 0 7
T P 6 7 5
J 6 0 2
R F 0 8 1 M 2 S T R
R 6 9 7 Q 6 0 8
t a b l e 1 R 7 8 2
L 6 0 2
t a b l e 1
R 6 9 3
4 . 7 P G S
D 6 0 8
T P 6 7 6 P G 1
R F 0 8 1 M 2 S T R
V D R A
R 7 3 7
3 9 0
T P 6 7 9
D C D E T
- V B
R e f e r e n c e c i r c u i t
T h e s a m e c i r c u i t a s X M V 4 2 8 0 .
+ 5 A
A 1 0 3 7 A K ( Q / R / S )
Bch POWER AMP
003:Q4
- o u t p u t
FB _ B-
FB _ B+ Q 6 0 3
Bch POWER AMP 003:Q3
T P 6 7 2
+ o u t p u t
PS-OFF
T P 6 8 3
Q 6 0 1
003:O12
Q 6 0 4
R 7 1 2
B c h B a l - A M P
4 . 7 K
G A I N = 2 5 . 3 d B
T P 6 9 2
Q 6 0 2
C 2 4 1 2 K ( Q / R / S )
- 5 A
■AUDIO 002 CIRCUIT DIAGRAM (PX10/PX8/PX5/PX3)
O P Q
C682,683 C679 C680 PX10/PX8/PX5/PX3
- 3300p 1000p
1
- 3300p 1000p
470p - -
470p - -
R e f e r e n c e c i r c u i t
2
T h e s a m e c i r c u i t a s D S R 1 1 5 .
3
Q 6 1 1
T P 6 9 5
OUTA+ 003:K6
4
Q 6 1 5
T P 7 0 8
T P 6 9 7
Q 6 1 3
5
R 7 3 8
1 K
- 5 A
CURHA
6
003:P8
t a b l e 3
M o d e l R 7 7 8 , 7 8 1
P X 1 0
2 2 k
P X 8 2 2 k
P X 5 2 4 k
P X 3 2 4 k
7
T P 6 9 6 Q 6 1 2
A 1 7 2 1 - O ( T E 8 5 L , F
003:P8
OUTA-
8
Q 6 1 6
T P 7 0 9
9
T P 6 9 8
R 7 3 9
1 K
- 5 A
10
T P 6 9 3
R 7 3 2
T P 6 9 9
1 0 0 K Q 6 0 9
1 / 4 A 1 0 3 7 A K ( Q / R / S ) R 7 4 3
1 0 0 K
1 / 4
11
Q 6 1 0
12
G N D S
11