KV-27HS420/29DRC420/30HS420/32HS420/34HS420/36HS420
77
KV-27HS420/29DRC420/30HS420/32HS420/34HS420/36HS420
BY BOARD SCHEMATIC DIAGRAM (3 OF 4)
1
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2 |
3
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4
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5
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6
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7
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8
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9
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10
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11
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12
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13
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14
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15
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16
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17
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18
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19
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20
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21
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22
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23
A
—
B
—
C
—
D
—
E
—
F
—
G
—
H
—
I
—
J
—
K
—
L
—
M
—
N
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.
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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
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
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
10
11
IC2801
C2828
R2862
C2849
C2846
D2803
Q2806
R2831
R2827
R2829
R2843
R2842
R2847
R2850
R2
84
1
R
28
4
0
R2
8
39
R2
83
7
R2
83
6
R2
8
34
R2848
R2844
R2845
R2832
R2838
R2833
R2830
X2801
R2828
R2826
R2803
R2801
C2804
R2818
R2824
R2816
R2819
R2817
C2817
C2816
C2813
C2811
C2
81
2
Q2801
C2806
R2806
C2
81
4
C
28
1
0
C2
81
5
R2811
R2846
R2823
R2825
L2803
L2801
C2802
C2826
R2820
R2821
R2835
L2806
C2843
L2805
C2836
L2804
C2827
Q2802
Q2803
L2807
C2851
CN2804
Q2811
Q2812
Q2813
R2881
R2880
R2
88
3
R2
88
4
R
28
8
5
R2
8
86
R
28
87
R2
8
89
R
28
90
R2
89
1
R2
8
92
R2
8
93
R2
89
4
R2
89
5
R
28
9
6
R2
8
97
R2
8
98
Q2818
R2911
L2811
R2919
R2920
R2922
R2921
R2853
CN2803
C2844
C2847
R2854
R2858
D2806
R2849
C2845
Q2805
R2851
C2819
C2821
C2822
C2
84
1
C
28
40
C2837
Q2807
C2842
C2835
C2834
C2833
C2825
C2823
C2818
C2820
C2809
R2812
C2808
R2808
R2807
R2805
R2804
C2805
Q2804
C2801
C2831
C2830
C2824
R2809
R2813
R2810
R2815
C2850
CN2805
R2865
R2868
R2866
R2869
R2867
R2870
C2829
R2861
R2860
R2899
R2900
R2901
R2902
Q2823
Q2822
R2907
R2908
R2909
R2913
68 1/16W
:CHIP
68 1/16W
:CHIP
68 1/16W
:CHIP
CXA2170Q
0.068
16V
B:CHIP
100
1/16W
:CHIP
0.0022
50V
B:CHIP
0.1
16V
B:CHIP
MA111
2SD601A
2.2k
1/16W
:CHIP
4.7k
1/16W
:CHIP
2.2k
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
10
0
1
/1
6
W
:C
HI
P
10
0
1/
16
W
:C
H
IP
1
00
1/
16
W
:C
H
IP
10
0
1
/1
6
W
:C
HI
P
10
0
1/
1
6W
:
CH
I
P
1
00
1/
16
W
:C
H
IP
2.2k
1/16W
:CHIP
2.7k
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
560
1/16W
:CHIP
2.7MHz
8.2k
1/16W
:CHIP
10k
1/16W
:RN-CP
4.7k
1/16W
:CHIP
6.8k
1/16W
:CHIP
47p
50V
CH:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
100k
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
0.1
16V
B: CHIP
0.1
16V
B: CHIP
0.1
16V
B: CHIP
0.1
25V
F:1608
0.
4
7
1
0V
B:
16
08
2SA1226
BUFF
0.47
10V
B:1608
3.3M
1/16W
:CHIP
0
.1
16
V
B:
C
HI
P
0.
1
16
V
B:
CH
I
P
0
.1
16
V
B:
C
HI
P
100
1/16W
:CHIP
3.3k
1/16W
:CHIP
47k
1/16W
:CHIP
47k
1/16W
:CHIP
:LB2016
:LB2016
0.1
25V
F:1608
0.1
25V
F:1608
100
1/16W
:CHIP
100
1/16W
:CHIP
100
1/16W
:CHIP
:LB2016
0.1
25V
F:1608
:LB2016
0.1
25V
F:1608
:LB2016
0.1
25V
F:1608
2SB709A
2SB709A
:LB2016
0.1
25V
F:1608
40P
:BLK
2SA1226
BUFF
2SA1226
BUFF
2SA1226
BUFF
1.5k
1/16W
:CHIP
1.5k
1/16W
:CHIP
2
.2
k
1
/1
6
W
:C
HI
P
2.
2k
1/
1
6W
:
CH
IP
2.
2k
1
/1
6W
:
CH
I
P
2
.2
k
:C
HI
P
2
.2
k
:C
HI
P
2.
2k
1/
16
W
:C
H
IP
2
.2
k
1/
16
W
:C
HI
P
2.
2
k
1
/1
6
W
:C
HI
P
2
.2
k
:C
HI
P
2
.2
k
:C
HI
P
2.
2
k
1
/1
6W
:C
HI
P
2.
2
k
1
/1
6
W
:C
HI
P
2.
2k
1/
16
W
:C
H
IP
2
.2
k
:C
HI
P
2
.2
k
:C
HI
P
2SD601A
0
1/16W
:CHIP
:LB2016
22k
1/16W
0
1/16W
:CHIP
0
1/16W
:CHIP
0
1/16W
:CHIP
0
1/16W
:CHIP
6P
:S-MICRO
100
16V
:AL-CP
0.22
16V
B:1608
0
1/16W
:CHIP
10k
1/16W
:RN-CP
O2CZ5.6
LIMIT
10k
1/16W
:CHIP
100
16V
:AL-CP
2SB709A
330
1/16W
:CHIP
0.1
16V
B: CHIP
0.1
16V
B: CHIP
0.1
16V
B: CHIP
0.
1
1
6V
B
:
C
HI
P
0
.1
1
6V
B:
CH
IP
100
16V
:AL-CP
2SD601A
100
16V
:AL-CP
0.01
25V
B: CHIP
0.47
10V
B:1608
0.22
16V
B:1608
1000p
50V
B:1608
100
16V
:AL-CP
0.001
50V
B: CHIP
0.01
25V
B: CHIP
100
16V
:AL-CP
4.7k
1/16W
:RN-CP
4.7
50V
:AL-CP
12k
1/16W
:CHIP
100
1/16W
:CHIP
1.5k
47
1/16W
:CHIP
0.01
25V
B
2SD601A
100
16V
:AL-CP
100
16V
:AL-CP
4.7
50V
:AL-CP
100
16V
:AL-CP
2.2k
1/16W
:CHIP
10k
1/16W
:CHIP
2.2k
1/16W
:CHIP
10k
1/16W
:CHIP
100
16V
:AL-CP
11P
S-MICRO
:WHT
2.2k
1/16W
:CHIP
100
1/16W
:CHIP
2.2k
1/16W
:CHIP
100
1/16W
:CHIP
2.2k
1/16W
:CHIP
100
1/16W
:CHIP
0.0047
50V
B: CHIP
10k
1/16W
:CHIP
10k
1/16W
:CHIP
22k
1/16W
:RN-CP
4.7k
1/16W
:CHIP
4.7k
1/16W
:CHIP
4.7k
1/16W
:CHIP
2SD601A
2SD601A
0
1/16W
:CHIP
9
V
+5V
VS
5V-1
5V
5V
IIC1
MID OUT
PMUTE
ID
ABLATT
5V-2
5V
5V
9V
M
I
D
Y
S
M
I
D
C
R
M
I
D
C
B
M
I
D
Y
O
S
D
R
O
S
D
G
O
S
D
B
Y
S
Y
M
H CENT
M PIN
DF PARA
EW DRV
V PARA1
V DRV-
V DRV+
V PARA2
H DRV
V PARA2
V PARA1
M PIN
EW DRV
DF PARA
H CENT
V DRV-
V DRV+
H DRV
YSYM
OSD B
OSD G
OSD R
M
I
D
V
S
M
I
D
H
S
D
A
T
1
C
L
K
1
N
/
S
V
-
P
I
N
R DRV
B DRV
G DRV
12V
IK
V
_
D
R
V
+
V
_
D
R
V
-
V
S
A
W
1
V
S
A
W
0
V
_
A
G
C
V
_
O
S
C
V
_
A
P
A
R
A
1
V
_
A
P
A
R
A
2
E
W
_
D
R
V
D
F
_
P
A
R
A
G
N
D
_
V
M
P
_
P
A
R
A
H
C
_
P
A
R
A
V
S
_
I
N
D
N
D
_
H
H
_
D
R
Y
V
R
E
G
5
V
_
S
I
N
E
H
P
_
I
N
L2_FIL
CERA
AFC_FIL
IREF_HV
HVCOMP_IN
HD_TC
VCC5H
HPROT
VPROT
HS_IN
SCP
SCL
SDA
F
1
F
0
C
F
_
I
N
C
B
_
I
N
Y
_
I
N
V
C
C
5
S
I
R
E
F
_
Y
C
B
P
H
C
L
P
_
C
V
M
_
O
U
T
Y
F
_
O
F
F
D
P
D
T
_
O
F
F
P
A
B
L
_
F
I
L
R
_
I
N
G
_
I
N
B
_
I
N
G
N
D
_
S
I
G
Y
S
Y
M
G
N
D
_
O
U
T
R_OUT
R_SH
G_OUT
G_SH
B_OUT
B_SH
VCC_OUT
PRE_RGB
IK_IN
ABL_FIL
ABL_IN
VCC9
VTIM
P.1
9
V
V
M
P.4
P.1
BOUT
ROUT
TP88
TP87
V SINE
V PARA2
V PARA1
MP PARA
EW PARA
DF PARA
HC PARA
V DRV-
V DRV+
ABL
H PLS
H PROT
V PROT
9V
H DRV
5V
JIG B
PROT MUTE
JIG RG
SCP
V TIM
OSD YSYM
OSD B
12V
OSD G
OSD R
OSD V
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
G
N
D
OSD H
GND
GND
GND
PMUTE
ID
GND/SABL
V
S
I
N
E
TO WY CN9102
TO CH CN9001
9-965-963-01<DA4> BY(4/5)
CRT DRIVE
TO AY CN510
4
5
6
1
2
3
3
2
1
2.9 Vp-p (H)
1.5 Vp-p (V)
1.7 Vp-p (V).
BY BOARD WAVEFORMS
5
2.3 Vp-p (V).
4
3.0 Vp-p (V)
6
2.4 Vp-p (H)