Audio Mute - Kenwood KVT-715DVD Service Manual

P
QQ
3 7 63 1515 0
AVR
(VIDEO 5V)
5.0V IC651
L651
180
OUT
GND
0V
VIDEO SIGNAL DRV.
IC650
5.0V 1
VCC1
R658 C651
2.4V
1K 1
2
CIN
C650 R659
TP650
5.0-0V
0.1 1K
3
MUTE1
C652
1.4V 4
VIN
1
5.0-0V 5
YCMIX
C653 R677
1.4V 6
YIN
7
1 4.3K
BI-S
0V 8
GND11
9
NC9
0V 10
GND12
11
C654
NC11
1
1.4V 12
CYIN
0V 13
CLP
R653 C655
2.4V
1K 1 14
CBIN
R654
5.0V
1K W651
15
MUTE2
R651 C656
2.4V
1K 1
16
CRIN
R652
1K 0V 17
GND21
Q650
W
47K
Q652
47K
47K
MUTE
47K
W660
TE
L 13942296513
W701
R710
4.7K
R-
R711
C708
R+
R712 4.7K 3300P
3K
C709
-7.5V
0V
C710
1.0V
680P
680P
IC701
LPF
1.0V
0V
L702
10uH
C702
680P C703
680P
7.3V
R703
3K C701
3300P
718
0.1
2.4V
3.3V
R719
6.8K
www
.
Q
7.2V
W652
IN
VIDEO
C663
10
C662
0.1
5.0V
34
C661
VCC2
1
33 2.4V
COUT DVDG
32 0V
GND26
1.1V
R656
31 510
VOUT
30
VSAG
TP654
29 0V
GND25
28
1.0V YOUT TP652
27
1.5V YSAG TP651
26 0V
GND24
C659 R655
100u10 75
25
CYOUT COMP
+
1.1V
C660
24
CYSAG
10
TP653
23 0V
GND23
C658
1
22
CBOUT DVDB
21
2.4V
CBS-G
0V
20
GND22
C657
1
19
CROUT DVDR
18
CRS-G
2.4V
COAX
AUDIO DMIX R
MUTE.
C711 R716 R718
4.7 470 10
R
D919
R717
1.8K
Q702
D920
R708
1.8K
Q701
C706 R707 R709
4.7 470 10
L
AUDIO DMIX L
MUTE.
D701
TP701
Q707
Q706
Q705
Q704
10K
Q703-707
Q703

AUDIO MUTE

D702
x ao
y
i
R
8
X200
19.800MHz
79
80
81
R210 100K
5.0V
R211 100K
Q Q
3 6 7 1 3 5.0V
83
R213 10K
SDA
4.5V
SCL
R214 10K
∗
D922
∗
R930
100
∗
D923
∗
R931
100
R209 100K
96
R256 100
97
R212 470
98
R257 100
99
C202
0.01
101
5.0V
4.2V
103
56
R208
100K
107
108
109
u163
.
S
KVT-715DVD,725DVD/-B,735DVD
KVT-745DVD,765DVD,815DVD
2 9 9 4 2 8
X201
32.768kHz
1.7V
1.5V
1.3V 73
X1
1.4V 74
X2
75
NC
76
NC
77
NC
78
NC
79
FSEL1
80
FSEL2 0V
81
BU DET
82
KEY SRC
1 5 83 0 5 8 2 9 9 4
KEY DVDEJ
4.5V
84
SDA
85
NC
86
SCL
87
NC
88
NC
89
NC
90
NC
91
NC
0V 92
PGND1
5.0V
93
MINI CLK
5.0V
94
MINI DATA
95
NC
0V 96
PAN DET
4.3V
97
OSD CLK
2.5V
98
OSD CS
3.1V
99
OSD DATA
100
NC
0V 101
DSI
102
PVDD2
103
MINI PON
104
STATUS0
105
STATUS1
106
STATUS2
107
SYS SDATA
108 0V
SYS MDATA
5.0V
3.7V
0V
4.8V
R201 10K
∗ ∗
R203 10K R202 10K
m
∗ ∗
R205 10K R204 10K
∗ ∗
R207 10K R206 10K
co
X14-939x-xx (4/9)
T
9 9
2 8 9 9
IC204
SYSTEM MICROPROCESSOR
0V
0V
0V
37