Dsp Block Diagram - Pioneer VSX-918V-S Service Manual

1

4.5 DSP BLOCK DIAGRAM

QQ
3 7 63 1515 0
Block Diagram (DSP portion)
A
DSP&USB ASSY
B
(VSX-818V : AWX9164)
HDMI&DSP&USB ASSY
V
(VSX-918V:AWX8977)
Analog 2ch in
B
COAX in(1)
SPDIF in(2)
C
TE
L 13942296513
XM in
IC121
XMDT
BU9450KV
JA121
D
/KUXJ only
AWX9162,AWX9163
SPDIF
I2S
HDMI
Block
E
www
F
Telechips
SPDIF
USB
(RX6)
Block
24
1
http://www.xiaoyu163.com
2
IC301
IC101
DIR
AK4114VQ
VSX-818V only
except KUXJ
AWX8979
AWX8977
AWX9163
AWX8979
AWX9164
AWX9164
SW SW
TC74VHC157 TC74VHC157
IC161 IC171
VSX-918V only
AWX9162,AWX8977
x ao
y
. i
VSX-918V-K
2
http://www.xiaoyu163.com
3
8
1.25V
CODEC
AK4626AVQ
AWX8979
AWX9163
only
24.576MHz
IC191
TC74VHC08
(1/4, 2/4)
Q Q
3 6 7 1 3
u163
.
3
4
2 9 9 4 2 8
A5V
IC2
IC3
PQ1LAX95MSPQ PQ1LAX95MSPQ
3.3V D5V
Analog 6ch OUT
AWX8977 X261
Lip Sync
AWX9162
24.576MHz
ML87V5002
AWX9164
IC271
only
IC261
TC7WHU04
SDTO
LRCK,BCLK OUT
1 5 0 5 8 2 9 9 4
IC201
DSP
SW
DSPC56371AF180
TC7WH125
IC202
LRCK,BCLK IN
SDTI
MCLK
IC191
TC74VHC08
(3/4)
SDTI
IC191
TC74VHC08
(4/4) (ODD)
IC251 SERIAL ROM
PDC172A8 PDC173A8
1M 4M
VSX-818V only VSX-918V only
AWX9163 AWX9162
AWX9164 AWX8977
AWX8979
IC331
5 3
m LEVEL
Control in
SHIFTER
co
IC341, IC351
3 5
LEVEL
Control out
SHIFTER
4
9 9
2 8 9 9