Yamaha RX-V385 Service Manual page 101

A B C D E
DIGITAL 5/6
P O W E R S O U R C E
+ 5 . 5 V
1
C B 8 2 C B 8 1
1 + 5 . 5 V 5.5
1 3 2 0 0 m A
2 + 5 . 5 V 5.5
2
3 D G N D 0
3 E M C
4 D G N D 0
4
+ 5 . 5 V
5 R 8 4 2
X H L
0 5.5
n o _ u s e
D G N D D G N D
Page 104 R5
2
to OPERATION (2)_W5401
D G N D
+ 5 . 5 V
3
+ 3 . 3 M
D G N D
R 8 0 1
D C D C _ P O N
F r o m 0 0 2 . s h t 1 0 0
4
( C P U )
R 8 0 3
+ 3 . 3 S _ P O N
1 0 0
to DIGITAL 2/6
H D M I P O W E R
+ 5 . 5 V
5 5.5
+ 1 . 1 H
3 0 0 m A C 8 1 0 0 . 1 / 1 0 ( B J )
C 8 1 8
3 9 0 0 P ( B )
6 No replacement part available.
C 8 1 9
1 0 0 0 P ( B )
サービス部品供給なし
D G N D
1 2 3 4
B D 9 3 2 8 F J
I C 8 3
G
8 7 6 5
DC-DC
7
+ 3 . 3 M
R 8 0 2
F r o m 0 0 2 . s h t H D M I _ P O N
1 0 0
( C P U )
5 H T _ P O N
8
to DIGITAL 2/6
D S P P O W E R
E M C
+ 3 . 3 D S P
9
D G N D
10
+ 5 . 5 V
+ 3 . 3 M
R 8 0 8
D S P _ P O N
1 0 0
F r o m 0 0 2 . s h t
11 ( C P U )
D A C _ P O N
to DIGITAL 2/6
N E T P O W E R
( R X - V 4 8 5 &
12
L 8 1 5
R X - S 6 0 2 o n l y )
D G N D
13
+ 5 . 5 V
R i s e t i m e b e l o w 9 m s
C s s i s a b o u t 0 . 0 1 ~ 0 . 0 3 9 u F
F r o m 0 0 2 . s h t
R 8 0 4
( C P U ) W N _ P O N
n o _ u s e
14
B T P O W E R
( R X - V 3 8 5 o n l y )
F r o m 0 0 2 . s h t
B T _ P O N
( C P U )
15
to DIGITAL 2/6
U S B P O W E R
F r o m 0 0 2 . s h t
U S B _ V B U S _ P O N
16 ( C P U )
to DIGITAL 2/6
D A B P O W E R + 5 . 5 V
n o _ u s e
I C 8 1
4 5
3 2 1
D A B m o d e l o n l y
R X - V 4 8 5 D & R X - S 6 0 2 ( D A B )
17
n o _ u s e
D S P _ P O N
J 8 0 1
0
P R Y _ D A B D G N D
J 8 0 3
V I D E O P O W E R
5.0
R P 1 3 0 K 5 0 1 D - T R
V D D V O U T
I C 8 2
C E / C E G N D
18 F r o m 0 0 2 . s h t LDO
( C P U )
0
to DIGITAL 2/6 V I D _ P O N
J 8 0 2
D G N D
+ 5 A
D A C a n a l o g P O W E R
19
20
Details of colored lines
Red / full line: Power supply (+)
Red /dashed line: Power supply (-)
21
Orange: Signal detect
Yellow: Clock
Green: Protection detect
Brown: Reset signal
Blue: Panel key input
22
★ 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.
23
● 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あります。
F G H I J K L
9 5 0 m A
+ 3 . 3 D + 3 . 3 D
3.3
1 3 8 0 m A
3 A E M C
L 8 0 6
1 2 + 3 . 3 D
T P S 5 4 3 0 8 1 0 U H
( 0 . 5 % )
3 2 1
( 0 . 5 % )
I C 8 5
4 5 6
( 0 . 5 % )
D G N D
D G N D
1.1
+ 5 H T 5.0 J 8 0 9
T P 8 1 8 L 8 0 2 0
1 2
1 0 U H D G N D D G N D
E M C
+ 3 . 3 H
5 4
I C 8 6
1 2 3
LDO
T P 8 1 9
D G N D
D G N D
+ 5 V P o w e r S i g n a l
+ 5 . 0 V + - 4 %
R 8 3 9
0
D G N D
E M C E M C
E M C
+ 1 . 8 D + 1 . 2 D S P + 3 . 3 D A C
D G N D D G N D D G N D
+ 3 . 7 W N
C 8 5 4 T P 8 5 1
L 8 1 1
+ 3 . 3 B F
1 2
C 8 8 2 + 3 . 3 V _ P U + 3 . 3 B F
V D D V O U T
C 8 7 7
I C 1 0 2
C E G N D
1 2 3 4
I C 8 8
G
8 7 6 5
T P 8 5 2
D G N D
N O U S E
D G N D
IC83: BD9328FJ
1ch step-down DC/DC converter
VCC
EN
V V OPEN
DD 4 1 OUT
7 VREF OSC
SHUTDOWN
UVLO
IBIAS
TSD
Vref
FB
Current Limit ERR
5
CE 3 2 GND
COMP
SLOPE
6
SS
Pin No. Symbol Description
8 Soft Start
1 V Output Pin
OUT
2 GND Ground Pin
3 CE Chip Enable ("H" Active)
4 V DD Input Pin
M N O P Q R S
D G N D
+ 3 . 3 D LOAD SW J 8 1 0
0
3.3
+ 3 . 3 H
R P 1 3 0 Q 1 2 1 D - T R - F
L 8 0 9 1.2
I C 1 0 1
V I N V O U T
L 8 1 0
4 3
G N D
I C 9 2
n o _ u s e
N C C O N T R O L 2
1 + 1 . 2 E A R C ( e A R C )
+ 5 . 5 V
T C K 1 0 7 A F
LDO
D G N D
D G N D
1 6 0 m A
3.3 J 8 1 2
+ 3 . 3 D
0
+ 3 . 3 D S P
+ 1 . 8 D
+ 5 . 5 V
Q 8 0 3
R A L 0 3 5 P 0 1
5.5
1.8
4 5 6 + 1 . 8 D
D G N D
3 2 1
3 A
D G N D
L 8 1 2
T P S 5 4 3 0 8
1 2
1 0 U H
( 0 . 5 % )
3 2 1
D G N D D G N D D G N D I C 9 0 ( 0 . 5 % )
D C D C _ P O N
4 5 6
( 0 . 5 % )
n o _ u s e
J 8 0 7
D G N D
D S P _ P O N 0
J 8 0 8
+ 3 . 3 P L D + 3 . 3 S R C
I C 9 5
I C 9 4
V i n V o u t
V i n V o u t
O n
G N D G N D O n
D G N D
D G N D
D S P _ P O N D S P _ P O N
+ 3 . 3 B T
J 8 1 5 3.3
I C 8 4 0
R P 1 3 0 K 3 3 1 D - T R
V D D V O U T
C E / C E G N D
D G N D
I C 1 0 3 + 3 . 3 U S B
n o _ u s e
V D D V O U T 3.3
C E / C E G N D
D G N D
LDO
R P 1 7 0 H 3 3 1 B - T 1 - F
L 6 0 5 3.3
V D D V O U T
B K P 1 0 0 5 H S 6 8 0 - T
G N D
N C C E
n o _ u s e
A G N D
V i n G N D
E N V o u t
I C 8 9
A G N D
IC84, 93, 96: RP130K331D-TR
CMOS-based positive voltage regulator
5V
V V
VREG DD 4 1 OUT
BST
1
OCP
12V
VIN
2
Vref
S LVS
OUTPUT
DRV SW Current Limit
3 CE 3 2 GND
LOGIC
PWM R
LVS
Pin No. Symbol Description
1 V OUT Output Pin
2 GND Ground Pin
4 3 CE Chip Enable
GND
4 V Input Pin
DD
T U V W X Y Z
M A I N C P U P O W E R
5 0 m A
3.3
LDO
+ 3 . 3 S
+ 3 . 3 S 8 0 m A
3.3
+ 3 . 3 M
+ 3 . 3 M
R P 1 3 0 K 3 3 1 D - T R
V D D V O U T T P 8 4 1
L X D C 2 H N 3 3 F - 1 7 5
I C 9 3
C E / C E G N D n o _ u s e
E N V o u t
+ 3 . 3 M V i n I C 1 0 0 G N D
E M C
R P 1 3 0 K 3 3 1 D - T R + 3 . 3 S
T P 8 4 7
V D D V O U T
LDO I C 9 6
C E / C E G N D
D G N D
D G N D
D G N D
1 3 8 0 m A
+ 1 . 1 H
2 0 m A
+ 5 H T
3 0 0 m A
+ 3 . 3 H
9 0 m A
J 8 1 1
0 + 1 . 2 E A R C
1 1 0 0 m A
+ 3 . 3 D S P
+ 1 . 2 D S P
I C 8 7
R P 1 3 2 S 1 2 1 B - E 2 - F
1.2 J 8 1 3 3 0 0 m A
V D D V O U T
G N D G N D 0 + 1 . 2 D S P
C E N C
I C 9 7
n o _ u s e
V i n V o u t 3.3 J 8 1 4
+ 3 . 3 D A C
G N D O n 0
D G N D
D G N D
I C 9 8
V I N V O U T
G N D
N C C O N T R O L
T C K 1 0 7 A F
+ 3 . 3 D A C
LOAD SW
D G N D
+ 3 . 7 W N
+ 3 . 3 P L D
+ 3 . 3 S R C
+ 1 . 8 P L D
+ 1 . 8 P L D
I C 9 9
V i n V o u t
G N D O n
D G N D
D S P _ P O N
5 0 0 m A
+ 3 . 3 B T
+ 3 . 3 B T
+ 3 . 3 U S B
+ 3 . 3 D A B
+ 5 V I D
2 0 0 m A
E M C
+ 3 . 3 A + 3 . 3 A
I C / C B / X L : 8 1 - 1 0 0
O T H E R : 8 0 1 - 1 0 0 0
D I G I T A L 5 : P O W E R S U P P L Y
A G N D
IC85, 90: TPS54308DCR
4.5-V to 28-V input, 3-A output,
synchronous 350 kHz FCCM step-down converter
EN IN
5 3
Ip Ih Thermal Hiccup
UVLO
Shutdown Hiccup
Logic Shutdown
Overvoltage Enable
Comparator
– Comparator
+
Boot Charge
Error
FB Amplifier Current
4 –
+ Sense
BOOT
+ 6
Boot
UVLO
Voltage
HS MOSFET
Reference
20 k-ohms Current
Comparator
2 pF VIN
Power Stage
and Dead Time
2 SW
2.04 nF Regulator
Control Logic
Soft Start
Slope
Compensation
Overload Maximum
Oscillator LS MOSFET Current
Recovery Clamp
Current Limit Sense
Hiccup
Shutdown
1
GND
AA AB AC AD AE AF
RX-V385/HTR-3072
T o 0 0 2 . s h t
to DIGITAL 2/6
( M A I N C P U )
T o 0 0 2 . s h t
to DIGITAL 2/6, 6/6
T o 0 0 6 . s h t
( M A I N C P U & N e t w o r k )
IC91: RP170H331B-T1-FE
Voltage regulator
V DD 5 1 V OUT
T o 0 0 1 . s h t
Vref
( H D M I )
Current Limit
to DIGITAL 1/6
Thermal Shutdown
CE 3 2 GND
Pin No. Symbol Description
1 VOUT Output Pin
2 GND Ground Pin
3 CE Chip Enable Pin
4
NC No Connection
5 VDD Input Pin
IC92: RP130Q121D-TR-F
Voltage regulator
T o M A I N v i a 0 0 4 . s h t
( O p t i c a l I n p u t )
to DIGITAL 4/6
T o 0 0 4 . s h t
T o 0 0 6 . s h t V DD 4 3 V OUT
( D I R & N e t w o r k )
T o 0 0 3 . s h t
to DIGITAL 3/6, 4/6, 6/6
( D S P )
T o 0 0 4 . s h t
( D A C & D I R ) to DIGITAL 4/6
Vref
Current Limit
CE 1 2 GND
Pin No. Symbol Description
1 CE Chip Enable ("H" Active)
2 GND Ground Pin
3 V Output Pin
OUT
4 V Input Pin
DD
T o 0 0 7 . s h t
( D I R & N e t w o r k )
IC98, 101: TCK107AF
Load switch ICs
V
V
IN OUT
Slew Rate
Control Driver
Control
CONTROL
Logic
T o 0 0 6 . s h t
( B T )
Output
Discharge
to DIGITAL 6/6
Pull
Down
GND
T o 0 0 6 . s h t & 0 0 7 . s h t
( U S B & N e t w o r k )
IC87: RP132S121B-E2-FE
to DIGITAL 6/6
Voltage regulator
V DD 6 1 V OUT
T o 0 0 2 . s h t
( C P U )
Vref
Current Limit
Thermal Shutdown
T o 0 0 2 . s h t CE 4 2,5 GND
( C P U )
to DIGITAL 2/6
Pin No. Symbol Description
1 V OUT Output Pin
2 GND Ground Pin
T o 0 0 4 . s h t 3 NC No Connection
( D A C & D I R )
4 CE Chip Enable ("H" Active)
5 GND Ground Pin
to DIGITAL 4/6
6 V Input Pin
DD
IC86: NJM2830U1-05 (TE1)
Low dropout voltage regulator
V 5 4 V
IN OUT
CONTROL 1
Thermal
Protection
Bandgap
Reference
GND 2
101