Service manual

24
VSX-918V-K
1
2 3 4
A
B
C
D
E
F
1
2 3 4
4.5 DSP BLOCK DIAGRAM
Block Diagram (DSP portion)
DIR
AK4114VQ
IC101
CODEC
AK4626AVQ
SDTO
LRCK,BCLK OUT
DSP
DSPC56371AF180
LRCK,BCLK IN
SDTI
MCLK
SDTI
SW
TC7WH125
SERIAL ROM
5 3
LEVEL
SHIFTER
3 5
LEVEL
SHIFTER
XMDT
BU9450KV
I2S
Lip Sync
ML87V5002
TC74VHC08
(1/4, 2/4)
TC74VHC08
(3/4)
TC74VHC08
(4/4) (ODD)
except KUXJ
AWX8977
AWX8979
AWX9164
Telechips
USB
Block
SPDIF
(RX6)
Analog 6ch OUT
COAX in(1)
SPDIF in(2)
SPDIF
VSX-918V only
AWX9162,AWX8977
Analog 2ch in
24.576MHz
24.576MHz
Control in
Control out
PQ1LAX95MSPQ PQ1LAX95MSPQ
1.25V 3.3V D5V
A5V
TC7WHU04
XM in
HDMI
Block
SW
TC74VHC157
SW
TC74VHC157
/KUXJ only
AWX9162,AWX9163
VSX-818V only
AWX8979
AWX9163
AWX9164
AWX8977
AWX9162
AWX9164
only
AWX8979
AWX9163
only
PDC172A8
1M
VSX-818V only
AWX9163
AWX9164
AWX8979
PDC173A8
4M
VSX-918V only
AWX9162
AWX8977
IC301
IC261
IC191
IC201
IC251
IC331
IC341, IC351
IC121
IC161 IC171
JA121
IC202
IC191
IC191
IC271
X261
IC2
IC3
B
V
HDMI&DSP&USB ASSY
(VSX-918V:AWX8977)
DSP&USB ASSY
(VSX-818V : AWX9164)