Service manual

22
VSX-918V-K
1
2 3 4
A
B
C
D
E
F
1
2 3 4
4.4 BLOCK DIAGRAM (VSX-818V)
SW
CN307
CN2CN109
CN105
SL/SR
HDMI
IN1
HDMI
IN2
HDMI
OUT
C
OPT2
OPT1
SERIAL ROM
IC101
CXB1444R
(HDMI SW)
IC102
TC7MB3253FK
(DDC SW)
CN1001
Main uCom
PDC172A8
1M
AWX9163 : /KU
AWX9164 : /MY
AWX8979 : (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
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-818V
LIP SYNC
ML87V5002
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)
CN5CN1903
B
DSP & USB ASSY
W
HDMI ASSY
A
MAIN ASSY
E
COMPONENT
VIDEO ASSY
F
5.1CH
INPUT ASSY
M
DIGITAL
INPUT ASSY