74
VSX-918V-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
10.6 DSP & USB ASSY (3/4)
DSP & USB ASSY
(VSX-
8
1
8
V:AWX9164)
B
3/4
B
3/4
C
N
112
A
3/3
USBD
AI3
XMMUT3
XMMUT
USBD
A
O
XMFS
DIRERR
DSPHRQ
DECMUT
DIRDO
DSPBSY
DSPDO
DECMUT
DIRDO
USBD
A
O
DSPSS
USBRST
DSPCLK
DSPHRQ
USBP
W
R
DSPMOD
DIRERR
DSPDI
DSPBSY
DIRCS
USBD
AI
DSPDO
DSPRST
DIRRST
DSPHRQ3
DIRERR3
XMFS3
DSPBSY3
DIRDO3
DECMUT3
DSPDO3
XMRST
XMDI
W
R
TMOD
USBD
AI
USBD
A
O3
USBCTL
XFLA
G
W
RT
M
O
D
USBS
W
C331
N
M
C332
0.1u/10
C351
N
M
C352
0.1u/10
L351
QTL1013-A
L331
QTL1013-A
G
N
DD
G
N
DD
G
N
DD
G
N
DD
IC331
TC74
V
HC0
8
FTS1
1A
1
1B
2
1Y
3
2A
4
5
2B
6
2Y
7
G
N
D
8
3Y
9
3A
10
3B
11
4Y
12
4A
13
4B
14
V
CC
IC351
TC74
V
HCT541AFTS1
G1
1
A1
2
A2
3
A3
4
5
A4
6
A5
7
A6
8
A7
9
A
8
10
G
N
D
11
Y
8
12
Y7
13
Y6
14
Y5
15
Y4
16
Y3
17
Y2
1
8
Y1
19
G2
20
V
CC
N
M
Q341
RT1
N
241M-TLB
R353
100
R42
100k
R45
100k
R354
100
R44
100k
R333
N
M
R334
100
R336
0
R337
N
M
R352
N
M
R43
100k
R345
N
M
47k
R41
N
M
TP47
TP351
TP27
TP2
8
TP29
TP30
TP31
TP32
TP33
TP34
TP35
TP36
TP37
TP3
8
TP39
TP40
TP41
TP42
TP43
TP44
TP45
TP46
TP331
V
5D2
V
3D
V
5D3
V
3DF
V
5D
5
V
-> 3
V
Level shifter
for XM,USB
3
V
-> 5
V
Level shifter
for DSP,DIR,XM,USB
*R351
0
0
*R33
8
*R331
0
G
N
DD
*R46
100k
LSRST
LSI
N
T
LSSCL
TP49
TP50
TP51
LSSD
A
TP4
8
G
N
DD
1
G
N
DD
2
DIR ERR
3
DIR RST
4
DEC MUTE
5
DSP DI
6
DSP DO
7
DSP CLK
8
DSP RST
9
DSP SS
10
BU
S
Y
11
DSP HREQ
12
DSP MODE
13
DIR DO
14
DIR CS
15
USB XRST
16
USB PO
W
ER
17
USB D
AI
1
8
USB D
A
O
19
USB CTL
20
XFLA
G
21
W
RITE MODE
22
USB S
W
23
LS SD
A
24
LS SCL
25
LS I
N
T
26
LS RESET
27
9604S-27C
*C
N8