Sony KV-LS21M61 Service Manual ▷ View online
– 47 –
KV-LS21M61/M80/M81/M91
RM-GA002
4-3-8. CV Board Schematic Diagram
A
1
2
3
4
5
6
7
B
C
D
E
F
G
H
I
J
10uH
L750
250V
4.7
C754
250V
4.7
C781
250V
10
C751
1
2
3
4
2
3
4
4P
CN711
+B
NC
GND
VM OUT
100uH
L711
16V
100
C722
1/2W
FPRD
47
R714
160V
22
C713
160V
10
C719
16V
470
C725
2W
RS
220
R724
1
2
3
2
3
3P
CN712
GND
NC
VM
NC
VM
2SC3311A-QRSTA
Q717
2SA1309A-QRSTA
Q718
2SC3311A-QRSTA
Q712
47uH
L712
50V
22
C756
1
2
3
4
5
2
3
4
5
5P
CN703
To A Board(Block004)
CN801
200V
NC
GND
H1
NC
NC
GND
H1
NC
MTZJ-5.6
D782
2SA1309A-QRSTA
Q701
1
CN702
XX
GND
1
CN705
GND
1
CN704
1000V
GP08DPKG23
D750
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
5
JW705
5
JW706
5
JW707
5
JW704
R774
150
3W
RS
5
JW708
1
1P
TP701
1
1P
TP700
1/4W
0.47
R794
-2
2SC3311A-QRSTA
Q719
1SS133T-77
D783
10
JW709
XX
-2
16V
100
C784
160V
100
C714
10uH
L780
1
2
3
4
5
6
7
2
3
4
5
6
7
WHT
7P
CN701
GND
B
G
R
G
R
GND
1K
9V
9V
2W
RS
0.56
R781
1/2W
FPRD
100k
R795
1SS133T-77
D780
1SS133T-77
D781
KTA1659A
Q713
KTC4370A
Q715
1SS244-T-77
D754
1SS244-T-77
D755
1SS244-T-77
D756
RV750
XX
50V
PT
0.047
C723
47k
R722
R785
XX
2.2
R732
270
R790
100
R728
2kV
4700p
E
C752
22
R736
1/4W
XX
R770
1/2W
100
R763
2.2
R737
R768
XX
1/2W
1k
R757
1/4W
680
R754
XX
C759
1/4W
XX
R778
XX
C782
500V
XX
E
C703
1/4W
XX
R771
R767
XX
1k
R787
R786
XX
1/2W
1k
R758
2200p
B
C783
1/4W
680
R752
R766 XX
1/2W
100
R765
XX
R760
220
R792
1k
R788
820
R731
500V
1000p
B
C753
R784
XX
500V
4700p
E
C711
1/2W
560k
R773
470
R729
1/4W
XX
R777
1/4W
XX
R776
1/4W
47
R712
47
R735
50V
PT
0.047
C712
1/2W
100
R764
1/4W
XX
R772
1/4W
680
R753
1/2W
1k
R756
1k
R789
100
R791
1/2W
100
R783
100
R730
100
R793
10k
R727
200V
PT
0.1
C720
R713
XX
1/4W
1/4W
XX
R775
200V
PT
0.047
C718
1/2W
470k
R780
47k
R726
1/4W
470
R715
1k
R725
3
4
5
6
7
8
9
10
11
13
1
GND
GND
1
J751
XX
L751
XX
L752
XX
L753
XX
L754
XX
1/4W
FPRD
22
R796
XX
C785
1 2
9
8
7
6
5
4
3
TDA6108AJF/N2
IC751
500V
470p
B
C710
3
4
5
6
7
8
9
10
11
13
1
GND
GND
1
J752
SOCKET, CRT
9V
9V_2
9V_2
200V_2
200V_1
200V_1
200V_1
9V_1
9V_1
1000V
CV
(VIDEO AMP)
FV
RCV
BX1S(06)13478-...-CV.-LS21
3
4
1
5
6
2
9V
200V
200V
1000V
To A Board(Block001)
CN004
To A Board(Block001)
CN003
!
– 48 –
KV-LS21M61/M80/M81/M91
RM-GA002
A
1
2
3
4
5
6
7
B
C
D
E
F
G
H
I
J
4-3-9. H1 Board Schematic Diagram
RN
220
R002
RN
470
R004
RN
680
R005
RN
1k
R006
RN
1.5k
R007
1
2
3
2
3
CN001
XX
NC
GND
KEY
GND
KEY
S001
S002
S003
S004
S005
S006
S007
1/4W
RN
100
R001
RN
330
R003
H1
(FRONT PANEL)
SOUND
MODE
WEGA
.
GATE
VIDEO IN
VOL -
VOL +
PROGRAM -
PROGRAM +
BX1S(06)13478-...-H1.-LS21
– 49 –
KV-LS21M61/M80/M81/M91
RM-GA002
4-4.
VOLTAGE MEASUREMENT AND WAVEFORMS
A BOARD VOLTAGE LIST AND WAVEFORMS
Ref
Pin No.
Voltage[v]
Ref
Pin No.
Voltage[v]
Ref
Pin No.
Voltage[v]
IC001
1
0
2
0
3
1.7
4
3.2
5
3.2
6
0
7
3.2
8
0
9
3.2
10
*
11
*
12
0
13
0.1
14
2.4
15
4.8
16
1.8
17
2.2
18
0
19
2.2
20
2.2
21
3.9
136.0mVp-p
PAL
1
168.0mVp-p
NTSC
1
22
1.6
196.0mVp-p
PAL
2
180.0mVp-p
NTSC
2
23
1.7
240.0mVp-p
PAL
3
208.0mVp-p
NTSC
3
24
1.9
25
1.8
26
2.2
27
1.8
28
0
29
0.2
30
0.2
31
2.3
32
0.4
33
0
34
0
35
0
36
3.4
37
3.4
38
2.2
39
2.4
40
0
41
1.8
42
0.2
43
0.4
44
0.4
45
8.5
46
1.9
47
4.7
48
1.4
212.0mVp-p
PAL
4
192.0mVp-p
NTSC
4
49
2.1
50
2.1
51
1.3
52
1.5
53
2.1
54
2.1
55
1.3
56
2.1
57
2.1
5.8
1.3
59
1.5
60
3.4
61
3.4
62
3.4
63
3.4
64
1.4
65
2.0
186.0mVp-p
5
66
0.3
512.0mVp-p
6
67
1.4
320.0mVp-p
PAL
7
344.0mVp-p
NTSC
7
68
0
69
4.8
70
1.2
71
1.2
72
1.2
73
2.0
74
1.6
75
0.1
76
0
77
0.1
78
1.2
79
1.2
80
1.1
81
0
82
4.8
83
2.0
84
3.1
85
1.6
184.0mVp-p
PAL
8
240.0mVp-p
NTSC
8
86
1.5
176.0mVp-p
PAL
9
148.0mVp-p
NTSC
9
87
1.6
200.0mVp-p
PAL
10
192.0mVp-p
NTSC
10
88
3.2
89
0
90
3.2
91
1.5
92
0
93
1.8
94
3.2
95
0
96
1.8
97
2.8
98
0.7
99
2.4
100
1.7
101
0
102
3.2
103
0
104
2.3
– 50 –
KV-LS21M61/M80/M81/M91
RM-GA002
Ref
Pin No.
Voltage[v]
Ref
Pin No.
Voltage[v]
Ref
Pin No.
Voltage[v]
A BOARD VOLTAGE LIST AND WAVEFORMS
105
2.5
106
0
107
3.2
108
0.9
109
3.2
110
3.2
111
4.8
112
0.4
113
0
114
0
115
0
116
0.1
117
1.7
118
1.7
119
3.2
120
0.8
121
0
122
0
123
3.2
124
1.7
125
0
126
3.2
127
0
128
3.2
IC002
I
3.2
G
0
O
2.9
IC003
1
0
2
0
3
0
4
0
5
(3.4)[3.6]
6
3.6
7
3.2
8
3.2
IC200
1
0
2
0
3
30.8
4
0
5
0
6
0
7
15.2
8
3.5
9
0
10
32.2
11
(12.5)[12.2]
12
15.2
IC601
1
0.1
2
0.2
3
(169.0)[169.6]
4
10.4
5
1.4
IC602
1
11.9
2
9.0
3
0
4
2.2
IC603
I
3.9
G
0
O
1.9
V
2.4
IC604
I
9.0
G
0
O
(4.6)[4.8]
IC605
I
134.3
G
0
O
24.7
IC606
I
6.8
G
0
O
3.2
IC607
I
3.9
G
0
O
1.7
IC800
1
6.1
2
5.9
3
5.9
4
0
5
5.7
6
5.7
7
5.7
8
11.9
IC801
1
2.2
2
0.7
3
1.5
4
0
5
3.1
6
2.2
7
6.1
8
9.0
IC802
1
2.8
2
3.2
3
3.2
4
0
5
3.3
6
3.3
7
4.5
8
9.0
IC804
1
0.3
100.0mVp-p
PAL
11
128.0mVp-p
NTSC
11
2
13.4
3
(-12.1)[-11.8]
2.840Vp-p
12
4
-13.4
5
0.2
6
13.7
7
0.3
90.0mVp-p
PAL
13
134.0mVp-p
NTSC
13
PH600
1
*
2
25.5
3
*
4
1.2
Q010
B
2.0
C
0
E
2.6
Q016
B
2.4
C
0
E
0
Q100
B
2.2
C
9.0
E
1.6
Q102
B
3.1
C
2.4
E
8.6
Q103
B
(0)[3.4]
C
(4.9)[0]
E
0
Q104
B
(3.4)[0]
C
(0)[4.9]
E
0
Q200
B
2.0
C
0
E
0
Q201
B
31.5
C
32.2
E
32.2
Q202
B
9.0
C
0
E
8.9
Q206
B
2.5
C
0.1
E
0
Q601
B
0
C
10.3
E
0
Q608
B
0
C
22.9
E
0
Q609
B
0.6
C
0
E
0
Q800
B
1.6
C
9.0
E
1.0
Q801
B
0.3
C
2.7
E
0
Q802
B
0.6
C
0
E
0
Q803
B
*
130.0mVp-p
PAL
14
142.0mVp-p
NTSC
14
C
65.5
E
0
Q804
B
133.2
C
0.3
E
133.6
Q805
B
0
C
137.3
31.40Vp-p
15
E
0
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