Sony KV-TG21M70 Service Manual ▷ View online
– 38 –
KV-TG21M70/TG21M90/N
RM-952
KV-TG21M70
KV-TG21M90/N
R422
#
56K :CHIP
R431
#
56K :CHIP
R435
#
1.0M :CHIP
R443
#
1.0M :CHIP
R446
#
47K 2:CHIP
R447
100 :CHIP
#
R520
#
10K :CHIP
R521
#
10K :CHIP
R522
#
10K :CHIP
R523
#
22K :CHIP
R524
#
22K :CHIP
R525
#
0 :CHIP
R526
#
22K :CHIP
R527
#
22K :CHIP
R528
#
10 1W :RS
R602
0.68 10W
1.0 10W
R603
0.68 10W
1.0 10W
R627
0.68 10W
1.0 10W
R887
220K 0.25W
220K
R888
220K 0.25W
220K
SWF100 FILTER SURFACE
FILTER SURFACE WAVE (K725)
TU100
BT AG401
BT-AG402
VDR600 ERZV14D621
#
A Board
✼ Mark List
Note: The parts indicated as "#" in the circuit diagram are
not listed here, as they are not used for these models.
not listed here, as they are not used for these models.
– 39 –
KV-TG21M70/TG21M90/N
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(1/2) BOARD VOLTAGE LIST
– 40 –
KV-TG21M70/TG21M90/N
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(2/2) BOARD VOLTAGE LIST
– 41 –
KV-TG21M70/TG21M90/N
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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