Service manual

71
VSX-918V-K
5
6 7 8
5
6 7 8
A
B
C
D
E
F
S2DT
FDTI
S2BC
BCKI
S2LR
LCKI
S2MC
USBSW
S1MC
S1DT
S2DT
S1BC
S2BC
S2LR
S1LR
S2MC
S1DT
DIRM
DIRL
S1BC
S1MC
DIRD
DIRB S1LR
USBRST
USBCTL
USBPWR
USBDAI3
USBDAO3
XFLAG
S1BC
S1DT
S1LR
S1MC
S2BC
S2DT
S2LR
S2MC
RX6
MCLK
C171
NM
C181
NM
C182
NM
C172
NM
L171
NM
L181
NM
GNDD
GNDD
NM
IC171
Switch for HDMI
SEL
1
1A
2
1B
3
1Y
4
5
2A
6
2B
7
2Y
8
GND
9
3Y
10
3B
11
3A
12
4Y
13
4B
14
4A
15
ST
16
VCC
NM
IC181
Switch for USB
SEL
1
1A
2
1B
3
1Y
4
5
2A
6
2B
7
2Y
8
GND
9
3Y
10
3B
11
3A
12
4Y
13
4B
14
4A
15
ST
16
VCC
R182
NM
R181
NM
R183
NM
NM
R171
NM
R172
NM
R173
NM
R174
NM
R178
0
R177
0
R176
0
R175
0
R185
0
R186
0
R187
0
R188
0
TP180
TP197
TP196
TP195
TP194
TP193
TP192
TP191
TP190
TP187
TP186
TP183
TP182
V3D6
V3D
V3D5
V3D
DA
UD
DA
DC
MCK1
MCK2
RX6
SEL
H
L
Y
USB
DIR/XM/HDMI
L
SEL
H
DIR/XM
Y
HDMI
BCK
LRCKMCK DATABCK
LRCKMCK DATA
*C192
470p/50
CH
*C191
0.1u/10
*L191
QTL1013-A
GNDD
*IC191
(4/4)
11
12
13
14
7
*IC191
(3/4)
8
9
10
14
7
*IC191
TC74VHC08FTS1
(1/4)
3
1
2
14
7
*IC191
(2/4)
6
4
5
14
7
*R194
47
*R195
47
*TP198
V3D7
V3D
*R191
100
*R192
100
*R193
100
*R196
100
MCK3
*R165
0
*R166
0
*R167
0
*R168
0
B 1/4
B
2/4
B
2/4
B
4/4
B
2/4
B
2/4,3/4