Sony KV-21FA210 Service Manual ▷ View online
— 34 —
KV-21FA210
6
8
10
12
14
13
15
4
7
3
11
2
5
9
A BOARD WAVEFORMS
1
2.1 Vp-p (H)
3.2 Vp-p (H)
1.2 Vp-p (H)
0.9 Vp-p (H)
1.0 Vp-p (H)
1.0 Vp-p (V)
4.7 Vp-p (H)
2.4 Vp-p (H)
168.8 Vp-p (H)
28.7 Vp-p (H)
1.14K Vp-p (V)
1.0 Vp-p (H)
50.3 Vp-p (V)
0.7 Vp-p (H)
196.9 Vp-p (H)
16
1.9 Vp-p (V)
A BOARD TRANSISTOR VOLTAGE LIST
B
C
E
B
C
E
Q002
0.0
2.0
GND
Q411
0.0
5.8
GND
Q004
3.8
9.0
4.4
Q412
0.1
0.1
GND
Q005
5.1
0.8
5.0
Q435
0.0
GND
5.8
Q006
0.0
0.0
GND
Q501
0.0
14.3
GND
Q008
0.0
2.6
GND
Q502
0.0
74.1
GND
Q009
0.0
5.2
GND
Q505
0.0
131.8
0.0
Q300
1.8
9.0
2.4
Q506
0
131.8
0
Q301
3.6
2.1
3.6
Q521
0.0
3.8
GND
Q303
3.6
GND
2.8
Q522
0.1
-2.1
0.0
Q304
3.6
GND
2.9
Q572
0.0
2.6
GND
Q305
3.6
GND
3.0
Q573
2.6
0.0
2.6
Q306
5.5
GND
4.9
Q578
0.0
0.5
GND
Q390
0.8
1.5
1.9
Q590
133.7
0.0
134.2
Q391
0.6
3.3
1.5
Q604
30.6
11.6
30.2
Q400
0.0
0.1
GND
Q608
0.0
6.7
GND
Q401
0.0
0.1
GND
Q650
5.8
9.0
5.0
All voltages are in V.
D
G
S
Q600
157.8
0.0
-4.4
Q601
-4.4
4.6
0.0
— 35 —
KV-21FA210
A BOARD IC VOLTAGE LIST
44
1.6
7
GND
35
N/C
3
2.2
PIN
VOLT
45
1.6
8
5.0
36
N/C
4
2.5
1
N/C
46
2.3
37
4.5
5
GND
2
GND
47
1.0
PIN
VOLT
38
4.5
6
0.0
3
2.2
48
N/C
1
N/C
39
4.5
7
4.0
4
2.2
49
0.5
2
GND
40
4.5
8
17.2
5
GND
50
1.2
3
GND
IC545
9
GND
6
5.0
51
2.0
4
5.0
PIN
VOLT
10
10.4
7
0.0
52
1.5
5
5.0
1
0.7
11
0.0
8
2.0
53
4.8
2
13.5
12
4.6
9
0.3
54
4.8
PIN
VOLT
3
-12.2
13
N/C
10
2.1
55
4.8
1
4.5
4
-13.3
14
163.6
11
5.0
56
4.8
2
4.5
5
0.2
15
153.5
12
GND
57
N/C
3
4.5
6
13.8
16
157.6
13
3.3
58
5.2
4
4.5
7
0.7
17
N/C
14
3.1
59
0.0
5
N/C
IC561
18
1.7
15
1.0
60
0.0
6
N/C
PIN
VOLT
IC603
16
1.5
61
0.0
7
N/C
1
0.1
PIN
VOLT
17
3.3
62
0.0
8
4.5
2
3.4
I
12.0
18
0.5
63
1.4
9
4.5
3
2.3
G
GND
19
1.1
64
4.9
10
4.5
4
GND
O
9.0
20
GND
65
4.9
11
4.5
5
9.2
IC604
21
0.5
66
0.0
12
4.5
6
10.2
PIN
VOLT
22
1.7
67
0.1
13
4.5
7
0.1
1
133.7
23
0.5
68
0.1
14
4.5
8
13.5
2
N/C
24
0.5
69
2.4
15
0.6
3
2.5
25
0.5
70
5.0
16
3.5
PIN
VOLT
4
11.3
26
0.0
71
5.0
17
3.5
1
3.4
5
GND
27
0.0
72
0.1
18
4.8
2
3.4
IC608
28
2.1
73
0.0
19
4.8
3
2.1
PIN
VOLT
29
2.7
74
5.0
20
GND
4
9.0
I
11.0
30
3.3
75
5.0
21
9
5
1.0
O
5.0
31
2.9
76
5.0
22
4.5
6
1.0
G
GND
32
GND
77
0.1
23
3.8
7
1.0
33
2.8
78
0.0
24
3.9
8
1.6
PIN
VOLT
34
3.3
79
4.9
25
3.9
9
1.6
I
9.0
35
2.9
80
4.9
26
0.6
10
1.6
G
GND
36
GND
27
4.5
11
GND
O
3.3
37
1.8
PIN
VOLT
28
4.5
12
1.6
All voltages are in V.
38
0.0
1
GND
29
4.5
13
1.6
39
0.1
2
GND
30
4.5
14
1.6
40
2.0
3
GND
31
4.5
41
1.6
4
GND
32
4.5
PIN
VOLT
42
3.3
5
4.8
33
4.5
1
2.5
43
N/C
6
4.8
34
N/C
2
1.8
IC633
IC001
IC600
IC565
IC002
IC003
IC400
KV-21FA210
— 36 —
1
|
2 |
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
A
—
B
—
C
—
D
—
E
—
F
—
G
—
H
—
I
—
J
—
M3 BOARD SCHEMATIC DIAGRAM
1
2
3
4
5
6
1
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
C11
R12
C13
C14
R51
R52
C70
R70
R71
R72
C71
R77
R78
C80
R50
R53
D50
C50
C51
R55
R56
R58
R59
R54
R57
R11
C10
R10
C12
R13
R79
L50
IC1
IC3
IC2
Q50
Q51
Q52
CN10
CN11
R74
R75
R76
0.01
:CHIP
1k
0.01
:CHIP
1000p
10k
:CHIP
10k
:CHIP
47
10k
10k
2.2k
0.01
:CHIP
100k
22k
47
4.7k
:CHIP
4.7k
:CHIP
MA111
0.47
4.7k
:CHIP
1.5k
:CHIP
15k
:CHIP
4.7k
:CHIP
4.7k
:CHIP
0
:CHIP
4.7k
47
4.7k
1000p
4.7k
4.7k
NJM2903M
COMPARITOR
NJM2904M
COMPARITOR
NJM2903M
COMPARITOR
2SD601A
AMP
2SD601A
AMP
2SD601A
AMP
6P
1P
100k
100k
47k
9V
9V
HDRV IN
ABL
9V
HDRV OUT
GND
3.3V
-13V
TO A BOARD
MOUNTED
TO A BOARD
MOUNTED
(HDR IN/OUT)
9-965-938-01<BA6>M3
KV-21FA210
— 37 —
[HDR IN/OUT] [COMPONENT SIDE]
M3
[HDR IN/OUT] [CONDUCTOR SIDE]
M3
R73
R75
C1
3
R1
2
C11
C7
1
R72
C73
R7
0
R7
1
R74
C72
R76
C7
4
C10
IC3
C80
IC1
CN
10
CN11
R11
R10
C1
2
C14 R13
R79
R7
8
C70
C51
C50
ID2
R55
R59
R77
D50
L5
0
9V
HD
RV
IN
ABL
HDRV
OUT
3.
3V
GN
D
1-
68
5-
12
0-
13
17
21
34
51
3
�
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�
�
�
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�
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R50
C10
Q52
Q51
IC2
Q50
R54
R56
R57
C70
C51
C50
ID1
R58
1
6
CN11
1-685-120-13
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