Sony KV-TG21M20 Service Manual ▷ View online
– 31 –
KV-TG21M20
RM-952
(2) CV Board Schematic Diagram
A
1
2
3
4
5
6
7
B
C
D
E
F
G
H
I
J
200V
200V
1
1
1
2
3
4
5
6
7
8
1
2
3
1
2
3
1
-2
-2
5
10 9 8
7
6
4
3
1
11
13
G4
G2
G1-1
H1
H2
G1-2
KB
KG
KR
G1-3
RCV
1
2
3
4
5
-2
CN706
C1762
#
#
C1784
JW701
JW702
C702
C703
C704
C708
C709
C710
C713
C714
C716
C718
C719
D702
1SS119-25
SPEED UP
1SS119-25
SPEED UP
D703
1SS119-25
SPEED UP
1SS119-25
SPEED UP
D707
1SS119-25
SPEED UP
1SS119-25
SPEED UP
D708
1SS119-25
SPEED UP
1SS119-25
SPEED UP
D709
1SS119-25
SPEED UP
1SS119-25
SPEED UP
D716 1SS119-25 CLAMP
J701
Q704
2SC2611
B AMP
2SC2611
B AMP
Q705
2SC2611
G AMP
2SC2611
G AMP
Q706
2SC2611
R AMP
2SC2611
R AMP
Q709
2SA1091-0
FEEDBACK
2SA1091-0
FEEDBACK
Q712
2SC2785TP-HFE
R AMP
2SC2785TP-HFE
R AMP
R706
R725
R726
R727
R728
R729
R730
R738
R739
R740
R755
R756
R757
R760
R761
R762
RV702
CN702
CN704
R705
C737
C746
C701
L710
MICRO
INDUCTOR
MICRO
INDUCTOR
L711
JW(5MM)
JW(5MM)
L712
JW(5MM)
JW(5MM)
R708
R722
R724
C1760
#
#
C1761
#
#
CN1701
#
#
L1700
#
#
L1761
Q1765
Q1767
#
BUFFER
#
BUFFER
Q1777
R1763
#
#
R1764
#
#
R1769 #
R1790
#
#
R1851
#
#
R712
R714
R710
R734
R703
R719
R721
R723
C712
R731
R732
R733
C717
D710
D711
D712
L701
MICRO INDUCTOR
:EL0607
MICRO INDUCTOR
:EL0607
D717
NNCD9.1A-T1
NNCD9.1A-T1
C1764
#
#
R1774
#
R711
R713
R715
#
#
#
#
0.001
50V
B
4.7
250V
0.022
400V
:PP
C706
47
16V
470p B
470p
B
B
470p
50V
B
560
B
560
B
100
16V
100
16V
16V
680p
50V
B
SOCKET
680
:RN
R707
470
:RN
2.2k
2.2k
2.2k
1/4W
180
180
180
100
100
100
1.2k
1.2k
1.2k
JW(5MM)
JW(5MM)
JW(5MM)
110M
1P :TAB
1P
:TAB
#
C736 #
#
#
0.0047
2kV
E
0.68
3W
:RS
R720
JW(5MM)
JW(5MM)
JW(5MM)
8.2k
3W
:RS
8.2k
3W
:RS
8.2k
3W
:RS
100
1/2W
100k
1/2W
#
#
#
470
B
150
150
150
47p
CH
#
#
#
CLAMP
D713
1SS119-25
STOPPER
STOPPER
D714
D715
1.5k
1/2W
1.5k
1/2W
1.5k
1/2W
.
.
1
2
3
4
5
6
7
8
9
10
11
1
C1763
#
C1768
#
C1769
#
C1770
#
C1773
#
C1775
#
C1778
#
C1779
#
D1767
#
D1768
#
#
Q1763
#
VM
VM
#
AMPLIFIER
AMPLIFIER
#
STANDBY
MUTE
STANDBY
MUTE
R1772
#
R1775
#
R1776
#
R1779
#
R1782
#
R1785
#
R1812
#
200V
FOCUS
G2
FV
GN D
H1
GND
TO A BOARD
9V
G2
GND
TO A BOARD
CN701
5P
:S-MICRO
TO A BOARD
CN500
CN505
NC
NC
GND
CN300
VM IN
GND
+B
NC
GND
1K
GND
NC
VM
B IN
G IN
R IN
#
R765
1SS119-25
STOPPER
STOPPER
1SS119-25
STOPPER
STOPPER
Q711
2SC2785TP-HFE
G AMP
2SC2785TP-HFE
G AMP
Q710
2SC2785TP-HFE
B AMP
2SC2785TP-HFE
B AMP
Q708
2SA1091-0
FEEDBACK
2SA1091-0
FEEDBACK
D701
1SS119-25
SPEED UP
1SS119-25
SPEED UP
Q707
2SA1091-0
FEEDBACK
2SA1091-0
FEEDBACK
CN703
6P
6P
CN1702
#
TO VM COIL
#
TO VM COIL
200V
R
G
B
R
G
B
B-SSSBG2T-...-CV.-21
1
2
3
4
H.STAT
H
KG
G2
CV KR G1 G4 HV
KB
PICTURE TUBE
A51LPT70X
RGB AMPLIFIER
(
(
– 32 –
KV-TG21M20
RM-952
Ref
Pin No
Voltage[v]
IC001
1
4.9
2
0
3
0
4
0
5
4.9
6
(0) [4.8]
7
0
8
0
9
4.9
10
4.8
11
0
12
0
13
0
14
4.8
15
4.9
16
0
17
0
18
0
19
(0.3) [0]
20
0
21
0
22
0
23
0
24
0
25
0.3
26
4.0
27
0
28
0
29
0
30
4.9
31
4.9
32
0
33
(0) [4.9]
34
(0) [2.3]
35
2.2
36
4.9
37
0
38
(3.2) [4.8]
39
0
40
4.9
41
4.9
42
0
43
0.3
44
4.9
45
4.9
46
4.9
47
(0.3) [0]
48
0
49
0
50
0
51
0
52
0
53
4.9
54
4.8
55
4.9
56
4.8
57
4.9
58
(1.9) [2.1]
59
8.8
60
(0.2) [8.8]
61
0
62
0
63
4.9
64
4.9
IC002
1
0
2
(4.9) [0]
3
(4.8) [0]
4
(15.5) [0]
5
(4.9) [0]
6
0
7
0
IC003
1
0
2
0
3
0
4
0
5
(4.9) [0]
6
(4.9) [0]
7
0
8
(4.9) [1.0]
IC004
1
4.8
2
3.9
3
0
IC101
I
*
G
*
O
*
IC203
1
0
2
0
3
15.6
4
0
5
0
6
0
7
7.4
8
1.0
9
0
10
(16.7) [0]
11
(8.3) [16.7]
12
(0) [8.3]
IC301
1
0.4
2
3.7
3
0
4
0
5
2.4
6
(3.0) [1.5]
7
4.8
8
4.8
9
6.6
10
1.1
11
3.4
12
8.1
13
(3.8) [3.3]
14
0
15
3
16
0
17
3.8
18
7.6
19
2.4
20
2.3
21
2.6
22
0
23
(0) [3.4]
24
0
25
0
26
0
27
2.7
28
2.7
29
2.3
30
2.3
31
2.3
32
2.3
33
0.3
34
2.4
35
2.4
36
4.8
37
8.1
38
2.4
39
4.9
40
1.5
41
0.6
42
2.9
43
(3.9) [4.4]
44
0
45
(3.1) [2.5]
46
1.3
47
1.4
48
4.6
49
4.6
50
1.5
51
3.6
52
3.8
53
(4.4) [5.7]
54
(3.8) [0.2]
55
(2.9) [0]
56
3.4
IC400
1
0
2
4.4
3
8.9
4
0
5
0
6
5.1
IC520
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
15.5
IC551
1
0.5
2
13.3
3
(12.1) [0]
4
13.3
5
(1.2) [0.3]
6
13.5
7
0.5
IC601
1
0.8
2
(0.4) [1.3]
3
(157) [171]
4
11.0
5
0
IC602
1
115
2
(135) [0.01]
3
(0) [135]
IC604
1
(0) [15.5]
2
8.9
3
0
4
4.9
IC850
1
0.8
2
0.8
3
1.5
4
0
5
2.6
6
1.6
7
7.4
8
8.9
IC1401
1
0
2
0
3
0
4
0
5
0
6
0
Ref
Pin No
Voltage[v]
Ref
Pin No
Voltage[v]
5-4. VOLTAGE MEASUREMENT
A BOARD VOLTAGE LIST
continue next page
➡
– 33 –
KV-TG21M20
RM-952
Ref
Pin No
Voltage[v]
Ref
Pin No
Voltage[v]
Ref
Pin No
Voltage[v]
PH600
1
134
2
133
3
3.6
4
17.5
SWF100
1
0
2
0
3
0
4
4.7
5
4.7
Q001
B
0
C
4.9
E
0
Q002
B
0
C
4.9
E
0
Q003
B
*
C
*
E
*
Q004
B
0.1
C
4.9
E
0.1
Q100
B
(8.1) [0.2]
C
8.9
E
(7.5) [0]
Q101
B
*
C
*
E
*
Q102
B
3.7
C
8.9
E
3.1
Q103
B
*
C
*
E
*
Q104
B
*
C
*
E
*
Q105
B
0.6
C
(6.6) [0]
E
0
Q106
B
0.6
C
4.1
E
0
Q200
B
0
C
0
E
0
Q201
B
6
C
8.9
E
5.3
Q202
B
0
C
0
E
0
Q203
B
0
C
0
E
0
Q300
B
*
C
*
E
*
Q302
B
*
C
*
E
*
Q303
B
*
C
*
E
*
Q304
B
*
C
*
E
*
Q307
B
(2.9) [1.5]
C
8.9
E
(2.3) [0.9]
Q308
B
*
C
*
E
*
Q309
B
2.9
C
0
E
0
Q310
B
*
C
*
E
*
Q313
B
*
C
*
E
*
Q314
B
4
C
0
E
0
Q315
B
0
C
8.9
E
2.2
Q316
B
0
C
0
E
0
Q318
B
2.9
C
6
E
2.4
Q319
B
0
C
8.1
E
0
Q400
B
15.5
C
0
E
15.5
Q401
B
0
C
0
E
0
Q402
B
0
C
0
E
0
Q403
B
0.3
C
0
E
0
Q404
B
4.5
C
0
E
5.2
Q405
B
2.4
C
8.9
E
1.8
Q406
B
2.4
C
(4.1) [5.0]
E
1.8
Q407
B
5.0
C
8.9
E
4.3
Q408
B
3.5
C
8.9
E
2.9
Q409
B
0
C
0
E
0
Q500
B
133.5
C
0
E
133.5
Q800
B
0.1
C
51.6
E
0
Q801
B
0
C
0
E
0
Q802
B
(6.0) [-94.3]
C
7
E
0
Q850
B
7.4
C
8.9
E
7.0
Q851
B
7.4
C
0
E
7.0
Q852
B
6.7
C
8.9
E
6.1
Q853
B
0.3
C
6.9
E
0
Q854
B
0.9
C
0.8
E
0
Q922
B
*
C
*
E
*
Q923
B
*
C
*
E
*
Q924
B
*
C
*
E
*
Q954
B
*
C
*
E
*
Q956
B
*
C
*
E
*
Q961
B
*
C
*
E
*
Q962
B
*
C
*
E
*
Q966
B
*
C
*
E
*
A BOARD VOLTAGE LIST
– 34 –
KV-TG21M20
RM-952
CV BOARD VOLTAGE LIST
Ref
Pin No
Voltage[v]
J701
G2
(135) [142]
G1-1
0
H1
0
H2
0
G1-2
0
KB
133
KG
(125) [145]
KR
129
G1-3
0
E
0
Q705
B
8.9
C
(144) [148]
E
8.3
Q704
B
8.9
C
137
E
8.3
Q706
B
8.9
C
(128) [132]
E
8.3
Q707
B
136
C
7.6
E
132
Q708
B
(143) [146]
C
7.0
E
144
Q709
B
(127) [131]
C
7.0
E
128
Q710
B
2.5
C
8.3
E
1.8
Q711
B
2.3
C
8.3
E
1.6
Q712
B
2.6
C
8.3
E
1.9
Q1763
B
0
C
0
E
0
Q1765
B
0
C
0
E
0
Q1767
B
0
C
0
E
0
Q1777
B
0
C
0
E
0
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