KV-27HS420/29DRC420/30HS420/32HS420/34HS420/36HS420
79
KV-27HS420/29DRC420/30HS420/32HS420/34HS420/36HS420
MY BOARD SCHEMATIC DIAGRAM (1 OF 4)
1
|
2 |
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
A
—
B
—
C
—
D
—
E
—
F
—
G
—
H
—
I
—
J
—
K
—
L
—
M
—
N
—
1.3 Vp-p (H)
1.3 Vp-p (H)
2.2 Vp-p (H)
1.7 Vp-p (H)
1
2
3
4
1.7 Vp-p (H)
5
MY BOARD WAVEFORMS
Due to the complexity of this board, performing component level fi eld repairs is not recommended. If service is required, complete board replacement is the preferred repair method.
Data is provided for reference only.
G
N
D
G
N
D
H
D
M
I
_
L
H
D
M
I
_
R
1
2
3
4
5
6
7
8
9
10
11 12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
A8
B8
A9
B9
A10
B10
A11
B11
A12
B12
A13
B13
A14
B14
A15
B15
A16
B16
A17
B17
A18
B18
A19
B19
A20
B20
A21
B21
A22
B22
A23
B23
A24
B24
A25
B25
1
2
3
4
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
EMI
EMI
EMI
C2017
C2019
C2020
C2022
C2027
C2029
C2039
C2040
C2043
C2044
C2045
C2050
C2058
C2062
C
20
6
4
C2069
C2071
C2072
C2075
C2077
C2089
C2
09
6
C2
09
7
C2100
C2103
C2108
C2115
C2116
C2117
C2122
C2123
C2124
C2126
C2131
C2132
L2005
L2007
L2011
Q2013
R2052
R2053
R2055
R2056
R2057
R2067
R2
08
1
R
20
8
2
R2094
R2095
R2097
R2101
R2107
R2114
R2115
R2116
R2118
R2119
R2131
X2001
R2061
L2009
R2126
C2041
C2042
C2046
C2059
C2060
C2061
C2066
C2065
C2130
Q2009
Q2016
Q2509
Q2510
R2036
R2041
R2565
R2566
R2567
R2568
R2569
R2570
R2571
R2581
R2582
Q2512
Q2513
Q2511
R2576
R2578
R2580
CN2006
C2088
C2090
R2103
X2003
IC2004
CN2305
C2038
R2074
C2109
R2
08
3
C2098
C2
09
9
CN2002
JR2010
JR2011
JR2012
JR2013
JR2014
JR2015
C2067
IC2010
D2507
R2102
R2104
R2117
R2076
CN2304
R2137
R2138
R2130
R2127
R2069
C2110
C2082
C2085
C2091
R2572
R2573
R2574
R2575
R2577
R2579
R2078
R2079
C2516
L2502
C2514
R2135
R2044
IC2006
C2
10
6
C
21
0
7
R
21
3
9
R2
1
34
R
21
33
R
21
4
0
R2
14
1
R2142
R2143
R2144
R2145
R2146
R2128
FL2205
FL2206
FL2207
10
10
10
10
10
10
0.1
16V
B:1608
0.47
10V
B:1608
0.1
16V
B:1608
470p
50V
CH:1608
100
16V
0.1
25V
F:1608
4.7
50V
0.1
25V
F:1608
0
.0
1
2
5V
B
:1
6
08
0.1
16V
B:1608
4.7
0.1
16V
B:1608
0.1
16V
B:1608
0.01
25V
B:1608
0.1
25V
F:1608
0.
4
7
1
0V
B:
16
0
8
0.
4
7
1
0V
B
:1
6
08
0.47
10V
B:1608
0.47
10V
B:1608
100
16V
0.1
25V
F:1608
100
16V
0.1
25V
F:1608
0.01
25V
B:1608
1
6.3V
B:1608
0.1
25V
F:1608
0.1
16V
B:1608
0.1
25V
F:1608
0.1
25V
F:1608
:CHIP
:LB2016
:CHIP
2SB709A
BUFF
15k
1/16W
:CHIP
0
:CHIP
10k
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
10
0
1
/1
6W
:
CH
I
P
10
0
1/
16
W
:
CH
I
P
10k
1/16W
:RN-CP
0 :CHIP
100
1/16W
:CHIP
1k
1/16W
:CHIP
100
1/16W
:CHIP
47
1/16W
:CHIP
47
1/16W
:CHIP
47
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
3.58MHz
3.9k
1/16W
:CHIP
:LB2016
100
1/16W
:CHIP
0.1
16V
B:1608
0.1
16V
B:1608
0.1 16V
B:1608
0.1
16V
B:1608
0.1
16V
B:1608
0.1
16V
B:1608
0.1
25V
F:1608
100
16V
100
16V
2SD601A
BUFF
2SD601A
BUFF
2SD601A
BUFF
2SD601A
BUFF
22k
1/16W
:CHIP
22k
1/16W
:CHIP
22k
1/16W
:CHIP
22k
1/16W
:CHIP
1k
1/16W
:CHIP
22k
1/16W
:CHIP
1k
1/16W
:CHIP
22k
1/16W
:CHIP
1k
1/16W
:CHIP
2.2k
1/16W
:CHIP
100
1/16W
:CHIP
2SD601A
BUFF
2SD601A
BUFF
2SD601A
BUFF
1k
1/16W
:CHIP
1k
1/16W
:CHIP
1k
1/16W
:CHIP
50P
:B TO B
0
1/16W
:CHIP
0
1/16W
:CHIP
100
1/16W
:CHIP
4MHz
CXA2103AQ
YCT-MAIN
4P
:B TO B
12p
CH:1608
10k
1/16W
1
6.3V
B:1608
33
0
k
1/
1
6W
:
CH
I
P
1
6.3V
B:1608
1
6.
3
V
B
:1
60
8
50P
:B TO B
0 1/16W
:CHIP
0
1/16W
:CHIP
0
1/16W
:CHIP
0
1/16W
:CHIP
0
1/16W
:CHIP
0
1/16W
:CHIP
1
10V
B:CHIP
SN74LV157APWR
MA111
0
1/16W
:CHIP
0 1/16W
:CHIP
0 1/16W
:CHIP
100
1/16W
:CHIP
14P
WHT
:S-MICRO
0 1/16W
:CHIP
0 1/16W
:CHIP
0 1/16W
:CHIP
0
1/16W
:CHIP
100
1/16W
:CHIP
22pF
50V
CH:CHIP
0.47
10V
B:1608
0.47
10V
B:1608
100pF
CH:CHIP
22k
1/16W
:CHIP
22k
1/16W
:CHIP
22k
1/16W
:CHIP
22k
1/16W
:CHIP
22k
1/16W
:CHIP
22k
1/16W
:CHIP
0
1/16W
:CHIP
0
1/16W
:CHIP
100
16V
0
:CHIP
0.1
25V
F:1608
0 1/16W
:CHIP
0
1/16W
:CHIP
CXA2171AQ
COMPONENT-I/F
0.
1
25
V
F
:1
6
08
0.
1
25
V
F
:1
60
8
75
1
/1
6
W
:R
N-
C
P
75
1
/1
6W
:
RN
-
CP
75
1/
16
W
:R
N
-C
P
0
1/
1
6W
:
CH
IP
0
1/
1
6W
:
CH
IP
0 1/16W
:CHIP
0
1/16W
:CHIP
0
1/16W
:CHIP
0
1/16W
:CHIP
0
1/16W
:CHIP
0
0UH
0UH
0UH
9V
FSC
VDOHS
SIIC
3DCOUT
3DYOUT
YCBCRSW0
3DV/YIN
3DCIN
V5L
V5R
CONTROLS
STBY5V
TUNER
POWERCONT
5V
9V
R
SPMUTE
AMUTE
VARMUTE
VDOVS
VDOHS
MIDCONT
3.3V
VDOVS
SYNCSW
ANTSW
OUTWL
OUTWR
LINEMUTE
5V
5V
5V
OCP
5V
POWER_INT
L
AUDIO
M
C
C
D
Y
ABLATT
YCBCRSW1
VARL
VARR
V6L
V6R
DQPDAC
DFDAC
5V-D
MAIN_YS
LMUTE
LMUTE
HDMIRESET
9V
HD
VD
S
C
L
K
S
D
A
T
S
C
L
K
S
D
A
T
TU2LR
TU2V
TU1V
TU1R
TU1L
DRCY
DRCCB
DRCCR
ACRLY
DGCRLY
VD
HD
VDOY
VDOCB
VDOCR
MIDRST
MIDBUSY
THSW
SUBOSD
Y
CB
CR
SCLK
MAINL
MAINR
DRCY
DRCCR
DRCCB
Y
CB
CR
VDOCR
VDOCB
VDOY
Y
PB
PR
PR
Y
PB
Y
P
B
P
R
SDAT
HDMIPR
HDMIPB
H
D
M
I
P
R
H
D
M
I
P
B
H
D
M
I
Y
HDMIY
S
C
L
K
S
D
A
T
SVD
SHD
M
O
N
O
U
T
A
D
R
S
S
D
A
S
C
L
C
G
N
D
H
V
C
C
Y
1
I
N
T
E
S
T
A
F
C
F
I
L
Y
2
I
N
HGND
VTIM
SEL OUT
SYNC IN
SCP
HTIM
YSYM
YOUT
CBOUT
CROUT
E
X
T
R
E
X
T
G
E
X
T
B
Y
C
B
C
R
S
W
R
I
N
G
I
N
B
I
N
S
V
C
C
Y
I
N
C
B
I
N
C
R
I
N
A
P
E
D
EXT Y
EXT CB
EXT CR
CLAMP
XTAL
APCFIL
SGND
FSC
Y CLAMP
CVCC
I
N
3
_
1
I
N
3
_
2
I
N
3
_
3
I
N
3
_
H
I
N
3
_
V
G
N
D
3
I
N
4
_
1
I
N
4
_
2
I
N
4
_
3
I
N
4
_
H
I
N
4
_
V
V
C
C
3
GND1
IN2_SW
IN2_L3
IN2_V/L2
IN2_H/L1
IN2_3
IN2_2
IN2_1
VCC1
IN1_SW
IN1_L3
IN1_V/L2
I
N
1
_
H
/
L
1
I
N
1
_
3
I
N
1
_
2
I
N
1
_
1
A
D
D
R
E
S
S
S
D
A
S
C
L
V
C
C
2
S
E
L
Y
O
U
T
S
E
L
C
B
O
U
T
S
E
L
C
R
O
U
T
GND2
SELVOUT
SELHOUT
EXTCLK/XTAL
NC
V_PH
H_PH
YG_IN
YG_OUT
IREF
Y IN
C IN
Y3IN
R
E
S
E
T
H:i.n
L:V5N6
P.4
R
SPMUTE
AMUTE
DRCY
DRCCB
VARMUTE
DRCCR
DRCH
ACRLY
DGCRLY
DRCV
9V
9V
5V
5V
VDOY
VDOCB
VDOCR
MIDRST
MIDBUSY
THSW
SUBV
SUBH
SUBOSD
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
VDOHS
VDOVS
S
1A
1B
1Y
2A
VCC
ST
4A
4B
4Y
3A
3B
3Y
ANTSW
OUTWR
OUTWL
G
N
D
(P2)
(P2)
(P2)
(P3)
(P3)
(P3)
(P4)
(P4)
(P4)
(P4)
(P2)
(P2)
(P4)
(P3)
(P3)
(P3)
(P3)
(P4)
(P4)
(P4)
(P3)
(P3)
(P3)
(P3)
(P3)
2B
2Y
GND
L
OCP
POWER INT
(
P
4
)
ABLATT
LOUT
ROUT
MAINV/Y
MAINC
SUBV/Y
SUBC
V56Y
V56PB
E
E
E
E
E
E
E
E
E
E
YCBCRSW1
V56PR
E
E
SCLK
SDAT
E
CONTROLS
9V
9V
TU1L
TU1R
TU1V
E
E
TU2V
TU2LR
E
E
E
V5L
V5R
MUTE
V6L
V6R
STBY5V
FIX/VARL
FIX/VARR
E
E
E
E
(P4)
(P4)
SUB CXA2103
DQPDAC
DFDAC
5V-D
5V-D
C
L
A
M
P
C
R
CLPSW
NC
GND(L)
GND(R)
LMUTE
S
C
L
K
S
D
A
T
A
G
N
D
R
L
G
N
D
P
R
G
N
D
P
B
G
N
D
Y
HDMI
TO UY CN1502
TO P CN9504
9
V
TO AY CN523
VIDEO PROCESSOR
9-965-963-01<DA4>MY(1/4)
4
5
3
2
1