Yamaha MCR-B043 Service Manual page 58

A B C
MCR-B043/MCR-B043D/NS-BP83
MCR-B043 MCR-B043D
MAIN 2/3
1
MAIN (1)
2
Q 2 0 0 5
A 1 1 6 2 - Y ( T E 8 5 R , F
R 2 0 0 3
3.4 R 2 0 0 2 13.4 13.4
t o 0 0 1 P W R _ D E T
2 2 K 1 K
to MAIN 1/3
10.9
- P W R _ D E T -
C 2 1 0 9 R 2 0 8 4
G N D
n o _ u s e n o _ u s e
3
F G 1 G N D
C 2 1 1 0
0 . 0 1 ( B )
C 2 1 2 3
C 2 1 2 1
n o _ u s e
0 . 0 1 ( B )
C 2 1 2 2
F G 2 G N D
n o _ u s e
G N D G N D
C 2 1 1 1 R 2 0 8 6
n o _ u s e n o _ u s e
4
F G 3 G N D
C 2 1 1 2
R 2 0 8 7
n o _ u s e n o _ u s e
+ 5 U
U S B
F G 4
G N D
+ 5 U
5.1
C 2 1 3 8
5 6 P ( C H )
C 2 0 0 5
+ 3 . 3 M
1 / 1 0
5
3.3
3.3
U S B 1 _ C T L 1
U S B 1 _ C T L 2 3.3
3.3
U S B 1 _ C T L 3
O C _ N _ F L G 0
t o 0 0 1
3.3
I L I M _ S E L
to MAIN 1/3
6
3.3
U S B 1 _ E N
IC USB
U S B _ N _ C H A R G I N G 3.3
2.9
U S B _ D P _ I N
0
U S B _ D M _ I N
7
MIX OUT
D A C C L K
A U D O U T 1
t o 0 0 3
A U D B C K 0
to MAIN 3/3
A U D W C K 0
8
9
HP OUT
to MAIN 3/3
C 2 0 2 6 2 . 2 K 1 0 / 6 . 3
1.6 0
H P _ L _ C U B I T
R 2 0 2 4
1 0 / 6 . 3 C 2 0 4 3
E
1 0 K
B
R 2 0 2 8
C
t o 0 0 3 C 5 9 3 8 A ( A / B ) C 5 9 3 8 A ( A / B )
C
1 0 K
B
G N D
R 2 0 2 9
E
C 2 0 2 7 1 0 / 6 . 3
1.6 0 2 . 2 K
H P _ R _ C U B I T
R 2 0 2 3
1 0 / 6 . 3 C 2 0 4 4
10
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter. ● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
★ Components having special characteristics are marked ⚠ and must be replaced
● ⚠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、
with parts having specifications equal to those originally installed. 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。
★ Schematic diagram is subject to change without notice.
● 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あります。
58
D E F
to Power supply module_CON2
T O P C B P O W E R
13.6
A M P V C C
C 2 0 0 6
3 3 0 0 / 1 6
C 2 0 0 7
5 k-ohms
0 . 1 / 1 6
10 W
+ 1 3 . 5 V F 2 0 0 1 12.8
2 4 V 0 . 5 A
+ 1 3 D
Q 2 0 0 7 R 2 0 1 9
S D
1 8 2 2 K
S D
2 7
N C C E
S D 2.5
3 6 A D J
I C 2 0 4
G D G N D
4 5
V D D V O U T
J 2 0 0 6
F D S 9 4 3 5 A
1.2 J 2 0 0 7 R 1 1 5 4 H 0 0 1 C - T 1 - F
n o _ u s e n o _ u s e
G N D
[ + 1 3 D O N / O F F ]
G 2 G 1 G 3
0 K T C 3 8 7 5 S - Y , G R - R
Q 2 0 0 6 G N D + 3 . 3 M
0.6 R 2 0 1 1 G 2 0 0 1
G N D
1 0 K
C P U / I R
P O W E R K E Y
3.3
G N D No replacement part available.
サービス部品供給なし
R R 2 6 4 M - 4 0 0 T R
+ 5 D C D P U
B T c a r d
+ 5 D + 1 3 D
Q 2 0 1 1
C 2 0 1 6
M C H 6 3 3 6 - T L - E
D 2 0 0 6
B L M 2 1 P G 6 0 0 S N 1 D L 2 0 0 2 C 2 0 1 2 0 . 1 / 1 6
3 9 0 0 P ( B )
L 2 0 0 1 1 0 U H
R B 0 5 1 L - 4 0
C 2 0 1 3
G N D
1 0 0 0 P ( B )
+ 3 . 3 M
4 3 2 1
J 2 0 1 4 R 2 1 0 3
3.3
I C 2 0 3
G
n o _ u s e 1 0 0 K
5 6 7 8
B D 9 3 2 9 A E F J (
[ + 5 D O N / O F F ]
R 2 0 2 0
R 2 0 1 7 4 . 7 K
1 2 K
Q 2 0 1 2
D T C 0 4 4 E U B T L
+ 5 D
G N D G N D
5.15 No replacement part available.
サービス部品供給なし
- -
t y p 2 . 5 A
S T A T U S I L I M _ S E L
D P _ I N I C 3 0 5 D P _ O U T
U S B _ D P _ O U T t o 0 0 3
D M _ I N T P S 2 5 4 6 D M _ O U T
U S B _ D M _ O U T to MAIN 3/3
O U T P A D I N
G N D
+ 3 . 3 A
B L M 1 8 E G 2 2 1 S N 1 D
C 2 1 1 3
1 / 1 0
No replacement part available.
C 2 1 1 4
サービス部品供給なし
1 0 0 P ( S L )
R 2 0 8 9 R 2 0 9 1
4 . 7 K 1 0 K
C 2 1 1 5
2 . 2 / 1 0
R 2 0 8 8 R 2 0 9 2
4 . 7 K 1 0 K
G H
Notes)
Safety measures
• Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such as wearing insulating gloves.
• Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there.
Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminals of each capacitor indicated below to discharge electricity.
The time required for discharging is about 30 seconds per each.
C2006 on MAIN (1) P.C.B.
+ 3 . 3 D
C u b i t / F l a s h / A p p l e / P U
D A M P / L o g i c
H P - A M P
D A B ( 3 . 3 V / 1 . 2 V )
MCR-B043
M C R - B 0 4 3 O n l y
+ 5 T
+ 3 . 3 D
T u n e r
+ 5 T
3.3
+ 5 T 5.0
3 . 3 V / 2 A
+ 3 . 3 M + 3 . 3 B U P Q 2 0 0 W N A 1 Z P H
B L M 1 8 P G 4 7 1 S N 1 D
D 2 0 0 3 I C 2 0 5
3.3
3.7 L 2 0 0 7
1 2 3 4 5
1 S S 3 8 0
G N D
D 2 0 0 4
4.2
1 S S 3 8 0
0.9
0
+ 3 . 3 B U
R T C
3.3
P O W E R S T A N D B Y
+ 7 . 2 D
D 2 0 0 7 R 2 0 9 9
7.2
6 . 2 5 V 3 3 K
7 . 2 V / 2 A
B L M 1 8 P G 2 2 1 S N 1 D L 2 0 1 1
+ 3 . 3 M
L 2 0 0 8
1 0 U H
5 4
+ 7 . 2 D
I C 2 0 7
1 2 3
R 2 0 4 2
C D D r i v e r
4 7
M G N D
)
3.2 L 2 0 0 5
A M P V C C
1 5 U H
L
W V 9 6 8 5 0
C 2 0 3 4 L 2 0 1 7
+ 3 . 3 D
4 7 0 / 2 5 1 5 U H
+ 3 . 3 A M P
C 2 0 3 5 C 2 0 4 0
G N D
4 . 7 / 1 6 4 . 7 / 1 6
C 2 1 0 5 C 2 1 0 6
+ 3 . 3 A M P 1 0 0 0 P 1 0 0 0 P
S L
1 / 1 0
C 2 0 2 3
A V S S M O N O
C 2 0 2 8 V R E F G A I N 1
16.8 I C 2 0 6
1 / 1 0 R E F A G A I N 0
0 . 1 / 1 6
Y D A 1 6 4 C - Q Z E 2
C 2 0 2 9
C 2 0 2 4 D V D D C K M O D
3.3
M C K M U T E N
0 . 1 / 1 6 3.3
S D A T A P R O T N R 2 0 4 9
S C L K S L E E P N 2 2
R 2 0 4 7
3.3
2 2
L R C L K P L I M I T
0
D V S S H O P P R 2 0 4 8
0
2 2
DIGITAL
M O N O = L : S t e r e o
G A I N 0 / 1 = [ L / L ] : 0 d B
AMPLIFIER C L K M O D = H : 1 1 . 2 8 9 6 M H z ( 1 2 . 2 8 8 M H z )
P L I M I T = 0 V :
H O P P : L = 7 0 5 . 6 k H z / H = 7 5 2 . 6 k H z
A M P V C C
( L = 7 6 8 k H z / H = 8 1 9 . 2 k H z )
C 2 1 0 7 C 2 1 0 8
1 0 0 0 P 1 0 0 0 P
C 2 0 3 6 C 2 0 4 1
4 . 7 / 1 6 4 . 7 / 1 6
L 2 0 1 8
C 2 0 8 8
[ D i g i t a l 1 5 U H
4 7 0 / 2 5
A m p l i f i e r ] W V 9 6 8 5 0
R
G N D
L 2 0 0 6
1 5 U H
+ 3 . 3 M
3.3
G N D D T A 0 1 4 E U B T L
Q 2 0 0 8
R 2 0 8 1 I N
O U T
Details of colored lines
0 . 0 1 ( B )
C 2 0 3 8 Red / full line:
Red /dashed line:
G N D Orange:
Yellow:
Green:
Brown:
Blue:
I J K
注意 )
安全対策
・ この製品の内部には高電圧部分があり危険です。 修理の際は、 絶縁性の手袋を使用するなどの安全対策を行ってください。
・ 下記のコンデンサには電源を OFF にした後も電荷が残り、 高電圧が維持されており危険です。 修理作業前に放電用抵抗 （5 kΩ/10 W） を
下記の各コンデンサの端子間に接続して放電してください。 放電所用時間は各々約 30 秒間です。
MAIN （1） P.C.B. の C2006
L O C A T I O N * 2 0 0 1
* * 2 0 1
+ 1 3 D
N O T I C E
( m o d e l )
13.6
J J A P A N
B U U . S . A
C 2 0 7 4
C C A N A D A
L 2 0 1 0 C 2 0 6 6 0 . 1 / 1 6
3 9 0 0 P ( B ) R G E N E R A L
1 0 U H
T C H I N A
C 2 0 6 7
K K O R E A
1 0 0 0 P ( B ) G N D
A A U S T R A L I A
No replacement part available.
B B R I T I S H
4 3 2 1 サービス部品供給なし
G E U R O P E
I C 2 0 8
G
5 6 7 8 L S I N G A P O R E
B D 9 3 2 9 A E F J ( )
E S O U T H E U R O P E
V T A I W A N
R 2 0 5 6
7 . 5 K 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
R 2 0 5 9
3 D _ P O N
H T H A I
1 0 0 K
S S
G N D
A U D I O _ P O N t o 0 0 1
to MAIN 1/3
V P _ P O N
R E S I S T O R
R E M A R K S
N O M A R K C A R B O N
+ 1 3 D C A R B O N
M E T A L
13.6
M E T A L
C 2 0 7 5
M E T A L
0 . 1 / 1 6
C 2 0 6 8
3 9 0 0 P ( B ) F I R E
C E M E N T
C 2 0 6 9
S E M I
1 0 0 0 P ( B )
C H I P R E S I S T O R
G N D
B D 9 3 2 9 A E F J ( )
4 3 2 1
C A P A C I T O R
I C 2 0 9
G
5 6 7 8 R E M A R K S
N O M A R K E L E C T R O L Y T I C
R 2 0 5 8 T A N T A L U M
R 2 0 5 7
1 K
1 6 K N O M A R K C E R A M I C
C E R A M I C
No replacement part available.
P O L Y E S T E R F I L M
サービス部品供給なし P O L Y S T Y R E N E
M I C A
P P O L Y P R O P Y L E N E
5 D _ P S T B Y
t o 0 0 1 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
5 D _ P O N to MAIN 1/3
P O L Y P H E N Y L E N E
m a t s u s h i t a : V R 1 6 8 7 0 S
C A P A C I T O R
( n i s s y : V E 3 2 6 4 0 )
P L
R 2 0 5 0
1 0
Note:
R 2 0 5 1
Precaution for handling measuring instrument
1 0 M L
Since the speaker output of this unit is BTL connected, the ground side
of the measuring instrument to be connected to the speaker terminal
E M C
MUST be kept in floating condition.
1 M H z
注意：
計測機器取り扱い上の注意
本機のスピーカー出力は BTL 接続となっていますので、スピーカー端子
SPEAKER OUT
に接続する計測器のアース側はフローティング状態に保つ必要がありま
す。
T E 2 0 1
S P O U T _ P L
A M P _ N _ M U T E
S P O U T _ M L L
A M P _ P R T
S P O U T _ M R
A M P _ N _ S L E E P t o 0 0 1
to MAIN 1/3 R
S P O U T _ P R
A M P _ H O P P
M S P - 1 1 3 V 2 - 0 3
R
M R
R 2 0 5 2
1 0
R 2 0 5 3
1 0 H E A D P H O N E
P R
0
H P L
R 2 0 6 5
0
H P R
t o 0 0 1
R 2 0 6 4
to MAIN 1/3
H P _ N _ M U T E
IC206: YDA164C-QZE2
Digital input stereo 20 W digital audio power amplifier
SLEEPN 19
SLEEPN
MUTEN 21
DCDET
MONO 25
CKDET
PROTN 20 CONTROL
OPT
CKMOD 22
OCP
HOPP 17
UVLO
Lch
Power supply (+)
Feed Back
Power supply (-)
Signal detect SCLK 7 Digital
SDATA 6 Audio PWM Level
Logic
Clock
LRCLK 8 I/F Amp Shift
Protection detect
MCK
5
23,24
Reset signal GAIN[1:0]
Feed Back
Panel key input
PLIMIT
PLIMIT 18
Set
Rch
AVSS 1 Feed Back
REFA 3 Regulator
PWM Level
Logic
Amp Shift
VREF 2 VREF
Feed Back
DVDD 4
DVSS 9
L M N
IC203, 208, 209: BD9329AEFJ-E2
1ch step-down DC/DC converter
VCC
EN
OPEN 5V
SHUTDOWN 7 VREF OSC VREG
BST
1
OCP
12V
VIN
UVLO
2
IBIAS
TSD
S LVS
FB
ERR OUTPUT
5 DRV SW
3
LOGIC
COMP
SLOPE
PWM
R LVS
6
SS
8 Soft Start
4
GND
IC204, 207: R1154H001C-T1-F
P A R T S N A M E
Voltage regulator
F I L M R E S I S T O R ( P = 5 )
F I L M R E S I S T O R ( P = 1 0 ) Thermal
Shutdown
O X I D E F I L M R E S I S T O R
V 1 V
F I L M R E S I S T O R DD 5 OUT
P L A T E R E S I S T O R
P R O O F C A R B O N F I L M R E S I S T O R
4 ADJ
M O L D E D R E S I S T O R
V A R I A B L E R E S I S T O R
Vref
Current
Short
Protection Limit
P A R T S N A M E Circuit Circuit
C A P A C I T O R
2 GND
CE 3
C A P A C I T O R
C A P A C I T O R
T U B U L A R C A P A C I T O R
Pin No. Symbol Description
C A P A C I T O R
1 V Output Pin for Voltage Regulator
OUT
F I L M C A P A C I T O R
2 GND Ground
C A P A C I T O R 3 CE Chip Enable Pin (active at "H")
F I L M C A P A C I T O R 4 ADJ Adjustable Output Pin for Voltage Regulator
5 V Power Supply Pin
DD
S U L F I D E F I L M
IC205: PQ200WNA1ZPH
Low power loss regulator
1 3
DC input (Vin) DC output (Vo)
IC
ON/OFF control DC output adjustment
2 4
(Vc) (Vadj)
5
GND
IC210:BD88400GUL-E2
Coupling capacitorless headphone amplifiers
SHDNRB SHDNLB INL
L B1 B2 C1
SVDD
D1
SPEAKERS
PVDD A3
SVDD
-
D2
+
A4
C1P
SVSS
SVDD
SGND
SVDD
CHARGE UVLO/
PGND B4 SHORT
PUMP SHUTDOWN TSD
PROTECTION
CONTROL
SGND
C1N C4 PVDD SVDD
SVSS
CHARGE +
CLOCK
PUMP C2
GENERATOR
CONTROL
-
PVSS D4
SVDD
SVSS
SGND
D3
A2 A1
SGND INR
IC305: TPS2546
USB Charging port controller and power switch with load detection
Current
Sense
IN 1 CS OUT
12
Disable+UVLO+Discharge
ILIM_HI
16 Current
Current Charge
Limit
Limit Pump
select GND
14
ILIM_LO 15 OC
8-ms Deglitch
OTSD
UVLO
ILIM_SEL 4 Thermal
Driver Sense 13
FAULT
LD cur set
EN 5
31 PVDDPL 8-ms Deglitch
(falling edge)
discharge
OUTPL
30
26,29,32
PVSSL
DM_IN
DM_OUT 2 11
28 OUTML
DP_OUT 3 10 DP_IN
27 PVDDML
ILIM_SEL
OC
CTL1 6
11 PVDDPR
DCP Divider
LD cur set
CDP Detection Mode Auto-Detection
12 OUTPR
Detection
CTL2 7
Logic Discharge
13,16 control
PVSSR 9 STATUS
14 OUTMR CTL3 8
15 PVDDMR Discharge
SVDD
OUTL
OUTR
SVSS