Service manual

93
VSX-918V-K
5
6 7 8
5
6 7 8
A
B
C
D
E
F
V 1/5
V
2/5
V
2/5
V
2/5,3/5
V
4/5,5/5
V
2/5,3/5
V
2/5
V
2/5
To HDMI Block
UDT
UBCK
ULR
UMCK
S2DT
FDTI
S2BC
BCKI
S2LR
LCKI
S2MC
USBSW
S1MC
HLRS1DT
HFDT
S2DT
S1BC
S2BC
HBCK
S2LR
S1LR
HMCK
S2MC
S1DT
DIRM
DIRL
S1BC
S1MC
DIRD
DIRB S1LR
HDDO
HMCK
HDRST
RX2
HLR
HDRQI
HDRQO
HBCK
HDMUT
HDDI
HDSCK
SDTI
HFDT
BDTI
CDTI
UDT
USBRST
USBCTL
USBPWR
ULR
WRTMOD3
USBDAI3
USBDAO3
XFLAG
UMCK
RX6
UBCK
S1BC
S1DT
S1LR
S1MC
S2BC
S2DT
S2LR
S2MC
USBREQ
HDSW
MCLK
C181
NM
C191
0.1u/10
C171
0.1u/10
C182
NM
C173
C172
470p/50
C192
470p/50
CH
L181
NM
L191
QTL1013-A
L171
QTL1013-A
GNDD
GNDD
GNDD
IC191
(4/4)
11
12
13
14
7
IC191
TC74VHC08FTS1
(1/4)
3
1
2
14
7
IC191
(2/4)
6
4
5
14
7
IC191
(3/4)
8
9
10
14
7
TC74VHC157FTS1
IC171
Switch for HDMI
SELECT
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
XST
16
VCC
NM
IC181
Switch for USB
SELECT
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
XST
16
VCC
R184
NM
R181
NM
R171
100
R182
NM
R172
47
R183
NM
R173
100
R174
100
R193
100
R192
100
R194
47
R195
47
R196
100
R191
100
R197
NM
R198
NM
R185
0
R186
0
R187
0
R188
0
R175
NM
R176
NM
R177
NM
R178
NM
TP169
TP197
TP196
TP195
TP194
TP193
TP192
TP191
TP190
TP198
TP189
TP188
TP187
TP161
TP162
TP163
TP164
TP165
TP166
TP167
TP168
TP186
TP170
TP171
TP172
TP173
TP174
TP175
TP177
TP178
TP179
TP180
TP182
TP183
TP184
TP185
V3D6
V3D7
V3D
V3D5
V3D
V3D
OSCU
DCDC
DA
HDUD
DA
MCK2
MCK3
MCK1
SEL
H
L
Y
USB
DIR/XM/HDMI
L
SEL
H
DIR/XM
Y
HDMI
BCK
LRCKMCK DATABCK
LRCKMCK DATA
1000p/50
*R167
0
*R168
0
*R165
0
*R166
0