Service manual

20
VSX-918V-K
1
2 3 4
A
B
C
D
E
F
1
2 3 4
4.3 BLOCK DIAGRAM (VSX-918V)
SW
HDMI REPEATER
To DSP section
To Sys uCom
CN307 CN105
SL/SR
HDMI
IN1
HDMI
IN2
HDMI
OUT
C
OPT2
OPT1
SERIAL ROM
HDMI
BLOCK
PDC173A8
4M
AWX9162 : /KU
AWX8977 : (Others)
COAX1
USB A-TYPE
TELECHIPS
USB
AK4114VQ
74VHC157
(DIR)
CD-R OUT
VCR/DVR OUT
(ADC)
(for DECODE)
LPF
DSP IC
DSPC56371AF180
IC104
(SW)
NJM4565
(C)
IC103
IC104
(SL/SR)
(DAC)
(CODEC)
AK4626AVQ
IC105
(FL/FR)
FRONT AUDIO IN
VIDEO(Front)
DVD/LD
CD-R/TAPE
TV/SAT
L/R
L/R
L/R
L/R
L/R
L/R
AUX
CD
VCR/DVR
L/R
L/R
L/R
MODULE
TUNER
L/R
R
MIC
L
L/R
(For Setup)
BLOCK DIAGRAM FOR VSX-918V
LIP SYNC
ML87V5002
74VHC157
IC611
CXB1444R
(HDMI
CABLE
EQ SW)
IC651
SiI9013CLU
(HDMI
RECEIVER)
IC801
PEG118A
(HDMI
uCom)
IC861
FLASH
ROM
IC701
SiI9134CTU
(HDMI
TRANSMITTER)
Cr
(DRIVER)
NJM2581M
6dB
IC553
OUT
COMPONENT
Y
Cb
TC74HC4052AF
6dB
6dB
COMPONENT3
Cb
Cr
Y
Cr3
Cr2
Cr1
Cr Cb
Cb2
Cb1
Cb3
Y
COMPONENT2
Cr
Cb
TC74HC4052AF
Y2
IC552
(COMPO SEL)
Cb
Cr
Y
COMPONENT1
Y3
Y1
Y
IC551
(COMPO SEL)
CN2CN109
CN5CN1903
V
HDMI & DSP & USB ASSY
1/2
V
HDMI &
DSP &
USB ASSY
2/2
A
MAIN ASSY
E
COMPONENT
VIDEO ASSY
F
5.1CH
INPUT ASSY
M
DIGITAL
INPUT ASSY