Service manual

25
VSX-918V-K
5
6 7 8
5
6 7 8
A
B
C
D
E
F
4.6 HDMI BLOCK DIAGRAM
VSX-918V HDMI&DSP&USB ASSY
HDMI Block Diagram
IC632
IC631
EDID
IC651
HDMI RECEIVER
DDC
TMDS
HPD
IC701
HDMI TRANSMITTER
HSYNC, VSYNC, DE
DCK
D[0-23]
MCLK
SCK
WS
IC861
FLASH ROM
IC801
HDMI ucom
CSCL
CSDA
JA601
JA602
JA701
HDMI IN1
HDMI IN2
HDMI OUT
Main ucom I/F
28.322 MHz
LDO
DC
/DC
LDO
5V
3.3V
1.8V
IC91
IC61
IC71
7V
5V
DDC
TMDS
HPD
IC611
HDMI CABLE
EQ SW
DDC
TMDS
HPD
DDC
TMDS
SEL
SD[0-3]
SPDIF
to DSP part
HPD_SINK
LDO
3.3V
IC891
IC101
CXB1444R
HDMI SW
DDC
HPD
TMDS
JA101
JA102
JA301
CN1001
HDMI IN1
HDMI IN2
HDMI OUT
Main ucom I/F
VSX-818V HDMI ASSY(Pass through SW) Block Diagram
IC102
TC7MB
3253FK
DDC SW
CN1002
SELB
HPD_IN
HPD_S
SELA
Power Supply
DDC
HPD
TMDS
HPD
TMDS
DDC
CE
DDC SW
5V
7V
LDO
LDO
5V
3.3V
IC901
IC911
HDMI&DSP&USB ASSY
(VSX-918V)
HDMI ASSY
(VSX-818V)
V
W