Yamaha YHT-S300, Service Manual

Page: 85 / 103

A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
85
HDMI
SR-300/NS-BR300/NS-P705/NS-B380
★
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.
● 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ございます。
IC7
IC2
IC1
CB1 CB2 CB3 CB4
IC3
IC8
CB5
IC6
IC5
IC4
W1
CB7
CB6
0
0
0 0
0
0 0
0 0
0 0
0 0
0 0
0 0
0 0 0.6
0 0
0
0 0
0.6
0 0
0
4.9
4.9
3.4
0
5.1
7.1
3.4
3.3
1.9
3.4
3.4
3.4
1.2
1.6
3.4
1.7
0
3.4
1.2
0.3
3.1
3.1
3.4
3.5
5.0
0.6
0.6
2.5
2.5
2.5
0.9
0
0
0
0
0
0
0
0
3.1
0
0
0
0
0
0
0
0
3.4
3.4
1.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
0.3
0.3
0
0
1.3
0
0
0
1.8
1.8
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
0
3.4
3.4
0
0
0
0
0
0
0
0
0
0
3.4
1.8
3.4
0
3.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
3.4
3.4
3.4
3.4
0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3.4
3.4
2.5 2.4
3.4 3.4
3.4 3.4 3.4 3.4 3.4 3.4 3.4
3.4
3.4
3.4 3.4
3.4
3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4
0 0 0 0
0 0 0
0
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
1.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.4
3.4
3.4
3.4
3.4
0
3.4
0
0
0
0
0
0
0
0
0
7.0
0
0
0
5.1
1.8
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
0
0
0
1.3
1.3 3.4
3.4
3.4 0 1.8 3.2
0
3.4
3.4
3.4
3.4
3.4
0
3.4
3.4
2.5
2.5
2.5
0
1.7
1.6
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.3
3.3
3.4
3.4
3.4
3.4
3.4
3.4
0
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
0
5.1
0
4.9 0 0
0 0
0 0
0
0 0
0.6
0
0
0
0
0
0
3.4
3.4 3.4 0
0 0
3.4
0.4
0.4
0
3.4
3.4
1.8
0.2
1.8
3.4
0.3
1.8
2.2 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3
1.8
2.3
0 0
0.3
3.4
2.5 2.5 4.9 4.9 3.4 0 0 0 0 0 0 0 0.7 0.7 0.7 0.7 0.6 0.8
1.8 1.8 1.8 1.8
1.8
4.9
3.4 3.4 1.3 1.3
0 0 0
0
0
2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2
1.3
2.2
1.3
3.4
3.5 1.3
0.6
0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
POINT E XL1 (Pin 5 of IC1) POINT F XL2 (Pin 83 of IC7)
E
F
V
OUT
V
IN
Control
GND
1
4 5
2
IC3, 8 : NJM2867F3-05
Low dropout voltage regulator
Bandgap
Reference
Thermal
Protection
1
DC input
(Vin)
GND
DC output
(Vo)
3
5
IC6 : PQ018EZ01ZP
Voltage regulator
ON/OFF control
(Vc)
2
IC
V
DD
CE
Pin No.
1
2, 5
3
4
6
Symbol
VOUT
GND
CE
NC
VDD
Description
Output Pin of Voltage Regulator
Ground Pin
Chip Enable Pin
No Connection
Input Pin
Vref
6 1
3 2,5
Current Limit
V
OUT
GND
IC5 : R1172S121D-E2-F
Voltage regulator
IC2 : SiI9134CTU
HDMI transmitter
XOR
Mask
DSCL
DSDA
EXT_SWING
Tx0
Tx1
Tx2
TxC
CSDA
RESET#
MCLK
S/PDIF
SCK
WS
DE
IDCK
VSYNC
HSYNC
SD[3:0]
DL[3:0]
DR[3:0]
D[35:0]
INT HPD
CSCL
Registers
and
Configuration
Logic
HDCP Keys
EEPROM
E-DDC
Master
CI2CA
Slave
Video
Data
Capture
Logic/DE
Generator
HDCP
Encryption
Engine
HDMI 1.3
TMDS
Core
Audio
Capture
Logic
YCbCr to RGB
Color Space
Converter/
4:2:2 to 4:4:4
Converter
IC1 : SiI9233ACTU
HDMI receiver
Serial
Host
Interface
(DDC)
Serial
Host
Interface
(Local)
CEC CEC_A
CEC_D
HPD0
HPD1
HPD2
HPD3
INT
ODCK
DE
HSYNC
VSYNC
EVNODD
SPDIF
SCK/DCLK
WS
MUTEOUT
XTALIN
XTALOUT
MCLK
SCDT
Q[35:0]
SD[3:0]
DR[3:0]
DR[3:0]
DSDA0
DSDA1
DSDA2
DSDA3
DSCL0
DSCL1
DSCL2
DSCL3
CSDA
CSCL
CI2CA
R0XC+
R0XC-
R0X0+
R0X0-
R0X1+
R0X1-
R0X2+
R0X2-
R0XC+
R0XC-
R0X0+
R0X0-
R0X1+
R0X1-
R0X2+
R0X2-
R0XC+
R0XC-
R0X0+
R0X0-
R0X1+
R0X1-
R0X2+
R0X2-
R0XC+
R0XC-
R0X0+
R0X0-
R0X1+
R0X1-
R0X2+
R0X2-
R0PWR5V
R1PWR5V
R2PWR5V
R3PWR5V
RESET#
HDCP
Registers
Video
HDCP
Unmask
Audio
HDCP
Unmask
SCDT
Logic
Reset
Logic
HDMI
Decode
HDMI
Receiver
Mux
SRAM
EDID
NVRAM
Video Processing
Audio Processing
APLL
Auto Video Configuration
Video
Output
Format
Audio Output
Audio Clock
Regeneration
S/PDIF
Output
I2S/
DSD
Output
Up/Down
Sampling
Deep
Color
Color
Space
Converter
HDPC
Engine
Hot Plug
Controller
Embedded
HDCP Keys
RPI
Registers
and State
Machine
Configuration
and Status
Registers
A/V Split
Auto
Audio/
Exception
1 G1
A1
A2
A3
A4
A5
A6
A7
A8
GND
Vcc
G2
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
IC4 : TC74VHC541FT
Octal bus buffer
HDMI RECEIVER
HDMI TRANSMITTER
REGULATOR
REGULATOR
CEC CONTROLLER
HDMI IN
No replacement part available.
サービス部品供給なし
No replacement part available.
サービス部品供給なし
TV
HDMI OUT
to POWER (1)_CB706
Page 83 K6
to MAIN_CB311
Page 82 L7
Writing port