Yamaha RX-V671 Service Manual page 129

A B C
RX-V671/HTR-6064/RX-A710
DIGITAL 4/8
1
CB61
2
3
4
5
HDMI TRANSMITTER
6
IC61
7
8
9
RESET#
HSYNC
10
★ 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.
130
D E F
HDMI OUT
IC65
IC61: SiI9134CTU
HDMI transmitter
INT HPD
CSDA
CI2CA
DSCL
E-DDC
CSCL
Slave
DSDA
Registers Master
and
VSYNC
Video HDCP
Configuration
HDCP Keys
Data Encryption
Logic
IDCK EEPROM
Capture Engine
DE Logic/DE
EXT_SWING
D[35:0] Generator
YCbCr to RGB
Tx0
Color Space XOR
HDMI 1.3
Tx1
S/PDIF Converter/
Mask
TMDS
Tx2
MCLK 4:2:2 to 4:4:4
Core
TxC
WS Converter
Audio
SCK
Capture
SD[3:0]
Logic
DL[3:0]
DR[3:0]
G H
CB62
IC68
IC67
IC62
IC65: NJM2888F05
IC64: TC74LCX245FT
Low dropout voltage regulator
Low voltage octal bus transceiver
with 5-V tolerant inputs and outputs
DIR Vcc
1 20 V
IN
A1 2 19 OE
IC63: TC74VHC157FT
Quad 2-channel multiplexer Control
A2 3 18 B1
A3 4 17 B2
SELECT 1 16 Vcc
1A 2 A S G 15 ST A4 B3
5 16
1B 3 B A 14 4A
A5 6 15 B4
1Y 4 Y B 13 4B
2A 5 12 4Y
A Y A6 7 14 B5
2B 6 B A 11 3A
A7 8 13 B6
2Y 7 Y Y B 10 3B
GND 8 9 3Y A8 9 12 B7
GND
GND 10 11 B8
I J K
IC66
IC63
IC68: TC7WHU04FU
V
5 4
OUT Triple inverter
1 V 1Y 3A
Thermal CC
Protection 8 7 6
Bandgap
Reference
1 2 3
1A 3Y 2A
2
L M N
to DIGITAL 1/8
to DIGITAL 5/8
IC64 to DIGITAL 8/8
to DIGITAL 3/8
DIGITAL (1)
2Y
5
4
GND