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

1

4.7 USB BLOCK DIAGRAM

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Block Diagram (USB portion)
A
DSP&USB ASSY
B
(VSX-818V : AWX9164)
HDMI&DSP&USB ASSY
V
(VSX-918V:AWX8977)
B
CN401
C
D+
D-
TE
L 13942296513
X'tal
12 MHz
V+3DU
D
IC461
64M
SDRAM
E
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F
26
1
http://www.xiaoyu163.com
2
IC471
LOAD
V+1R8U V+3DU
SW IC
IC402
1.8V REG
BUS Power cnt.
Protection flag
XRST
USB_DAI
IC401
USB_DAO
USB Host
TCC8600
S/PDIF
CP_RDY
CP_DATA
CP_CK
V+3DU
IC462
16M
FLASH ROM
x ao
y
. i
VSX-918V-K
2
http://www.xiaoyu163.com
3
8
V5DU
CN2
V3D (DSP)
Q401
CN3
5 -> 3
R455, R456
IC331
5 -> 3
TC74VHC08FTS
IC351
3 -> 5
TC74VHCT541AFTS
Q Q
3 6 7 1 3
IC481
X'tal
Apple
32.768 KHz
Certification IC
u163
.
3
4
2 9 9 4 2 8
V5 Receiver
+5V
USB POWER
CTL
XFLAG
System
Control
XRST
CPU
USB_DAI
USB_DAO
1 5 0 5 8 2 9 9 4
DSP part
m
co
4
9 9
2 8 9 9