Sony KV-25FS12 Service Manual ▷ View online
— 29 —
KV-25FS12 / 25FS12C
1
|
2 |
3
|
A
—
B
—
C
—
D
—
[RGB DRIVE, CRT DRIVE]
3
2
CB BOARD WAVEFORMS
1
132.8V p-p (H)
135.9V p-p (H)
140.6V p-p (H)
CB
C702
R707
IC701
R702
R705
C700
R704
R706
R719
R717
R718
R715
D704
R716
RV701
R708
D702
R712
D701
R710
R709
R711
D703
R713
CN705
R700
CN701
CN706
CN704
CN703
R721
Q701
GAP
S P A R K
G R O U N D
GROUND
GAP
G R O U N D
G R O U N D
1
9
1
6
1
2
4
5
E
B
1
3
E
B
ROU T
BOU T
" R G B & T I L T A M P . "
1
GN D
G OUT
BOU T
R OUT
T P70 2
T P70 1
1-677-297-41
1 7 1 8 1 8 9 4 1
— 30 —
KV-25FS12 / 25FS12C
1
|
2 |
3
|
4
|
5
|
6
|
A
—
B
—
C
—
D
—
E
—
F
K BOARD SCHEMATIC DIAGRAM
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
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
1
2
3
JW407
JW408
JW405
R455
R456
L410
C475
C446
C440
C490
R439
R430
R436
R434
R438
R437
R432
R431
C411
C406
C404
C441
CN450
CN402
C407
R404
C417
C416
C408
C405
C412
C415
C414
C413
C422
C423
R435
C419
C418
C410
C409
JR474
R433
C447
C458
IC404
R468
R469
R470
R403
Q433
Q432
Q430
Q431
JR408
C448
R409
R442
R405
R410
5MM
100
100
0.1
100
16V
16V
10.0MM
0.1
25V
F
0
4.7k
:CHIP
4.7k
:CHIP
4.7k
4.7k
220
220
10k
10k
0.0033
B:CHIP
B:CHIP
0.0015
B:CHIP
B:CHIP
0.0033
B:CHIP
B:CHIP
100
20P
3P
0.22
25V
:CHIP
100
4.7
4.7
0.22
25V
:CHIP
0.033
:CHIP
:CHIP
0.1
25V
25V
:CHIP
4.7
4.7
4.7
4.7
4.7
220
1 16V
:CHIP
0.1
25V
25V
:CHIP
0.033
:CHIP
0.0015
B:CHIP
0 SHORT
0
JW(5mm)
JW(5mm)
NJW1130AG-TE2
AUDIO PROCESSOR
0
0
100
1/10W
0
2SB709A
BUFFER
2SB709A
BUFFER
2SD601AX
MUTE
2SD601A
MUTE
JW(5mm)
100
220
100
100
I
N
1
A
I
N
2
A
I
N
3
A
I
N
4
A
I
N
5
A
I
N
6
A
B
B
E
A
B
B
E
A
T
O
N
E
B
T
O
N
E
B
M
O
N
A
M
O
N
B
L
I
N
E
B
O
U
T
B
B
P
S
S
A
G
C
A
G
C
V
R
E
F
D
A
C
D
A
C
D
A
C
D
A
C
S
D
A
A
U
X
0
S
C
L
A
U
X
1
G
N
D
V
C
C
I
N
1
I
N
2
I
N
3
I
N
4
I
N
5
I
N
6
B
B
E
B
B
B
E
B
M
O
N
-
L
M
O
N
-
R
V
A
R
/
F
I
X
-
R
O
U
T
-
L
O
U
T
-
R
9
V
G
N
D
Y
U
V
-
L
Y
U
V
-
R
V
3
-
L
V
3
-
R
V
1
-
L
V
1
-
R
T
V
-
L
T
V
-
R
V
2
-
R
V
2
-
L
V
A
R
/
F
I
X
-
L
N
.
C
.
M
U
T
E
TO A BOARD
CN460
TO MB BOARD
O
U
T
A
L
I
N
E
A
T
O
N
E
A
T
O
N
E
A
(AUDIO PROCESSOR)
CN1000
BA5-902-K
S
D
A
G
N
D
S
C
L
9V
9V
9V
AUDIO-R
AUDIO-L
AUDIO-L
AUDIO-R
A
U
D
I
O
-
L
A
U
D
I
O
-
L
AUDIO-R
A
U
D
I
O
-
R
AUDIO-R
5.2V
4.5V
4.5V
5.1V
0.3V
0V
0.3V
0V
1
|
2 |
A
—
B
—
C
—
[AUDIO PROCESSOR]
C201
C408
C409
C410
C411
C404
C406
C428
C426
C431
C432
C430
C424
C455
C456
C457
C450
C451
C422
C423
JR407
R410
R409
C418
C419
IC404
R404
JR429
C405
C413
C412
C415
JR427
C446
R456
JR426
JR420
R403
R479
CN450
IC403
CN402
Q433
R437
R438
R439
Q430
R433
R431
R432
Q431
C490
R435
R434
Q432
C440
R443
R436
R459
R469
1
1
2 1
1
1
3
2 4
S. R.S
13
1 2
1
2 0
40
2 0
AU DIO PR OC ESS OR
1-678-026-13
1 7 1 8 4 6 4 1 3
K
13
4.5
27
3.9
pin
volt
14
1.0
28
4.5
1
4.5
15
4.5
29
4.5
2
4.5
16
0.9
30
N/C
3
4.5
17
0.9
31
4.5
4
N/C
18
4.8
32
4.5
5
4.5
19
4.9
33
4.5
6
N/C
20
GND
34
4.5
7
4.7
21
8.9
35
N/C
8
4.5
22
N/C
36
N/C
9
4.5
23
N/C
37
N/C
10
4.5
24
1.3
38
4.5
11
N/C
25
1.3
39
4.5
12
4.5
26
4.4
40
4.5
All voltages are in V
K BOARD IC VOLTAGE LIST
IC404
— 32 —
KV-25FS12 / 25FS12C
1.3 Vp-p (H)
6
8
10
12
14
13
15
4
7
3
11
2
5
9
MB BOARD WAVEFORMS
1
4.7 Vp-p (H)
16
17
18
19
2.7 Vp-p (8 MHz)
1.0 Vp-p (H)
0.7 Vp-p (H)
0.9 Vp-p (H)
4.0 Vp-p (V)
4.0 Vp-p (V)
0.9 Vp-p (H)
1.7 Vp-p (H)
1.4 Vp-p (V)
1.4 Vp-p (V)
5.5 Vp-p (H)
5.3 Vp-p (H)
3.8 Vp-p (H)
3.1 Vp-p (H)
3.1 Vp-p (H)
0.7 Vp-p (H)
1.2 Vp-p (H)
23
GND
47
5.0
7
GND
21
1.5
45
5.2
19
1.9
pin
volt
24
2.2
48
0.0
8
5.0
22
1.5
46
4.6
20
2.4
1
1.7
25
2.3
49
0.0
23
1.6
47
1.7
2
4.8
26
GND
50
0.0
pin
volt
24
1.4
48
N/C
pin
volt
3
N/C
27
4.9
51
0.0
1
3.3
25
N/C
1
4.6
4
0.4
28
2.2
52
0.0
2
5.1
26
4.6
pin
volt
2
0.1
5
0.0
29
2.3
3
1.3
27
4.6
1
5
3
4.6
6
0.1
30
5.0
pin
volt
4
5.1
28
4.6
2
1.4
4
0.1
7
N/C
31
0.0
1
4.6
5
4.8
29
0.0
3
3.2
5
4.6
8
0.0
32
5.0
2
4.8
6
4.3
30
4.5
4
2.4
6
8.9
9
0.0
33
2.4
3
4.6
7
6.3
31
4.5
5
1.9
7
3.8
10
0.1
34
4.4
4
N/C
8
5.0
32
4.5
6
5.0
8
GND
11
0.1
35
5.0
5
N/C
9
5.1
33
8.7
7
0.0
12
5.0
36
4.8
6
8.9
10
GND
34
4.9
8
5.0
pin
volt
13
0.0
37
4.8
7
3.8
11
4.1
35
4.8
9
4.9
1
GND
14
4.3
38
4.8
8
GND
12
2.4
36
0.2
10
4.9
2
5.0
15
4.9
39
4.8
13
3.5
37
4.6
11
0.0
3
1.6
16
0.0
40
N/C
pin
volt
14
3.5
38
5.3
12
0.0
4
7.4
17
-0.2
41
0.0
1
GND
15
5.4
39
5.3
13
2.5
5
5.0
18
4.9
42
0.1
2
GND
16
7.7
40
GND
14
2.1
6
GND
19
5.0
43
5.0
3
GND
17
1.6
41
5.1
15
5.0
7
GND
20
2.1
44
0.1
4
GND
18
3.5
42
6.2
16
0.0
8
N/C
21
0.2
45
5.0
5
4.8
19
2.3
43
N/C
17
2.5
22
2.3
46
0.0
6
4.8
20
2.6
44
8.7
18
3.2
All voltages are in V
IC1003
MB BOARD IC VOLTAGE LIST
IC1001
IC1305
IC1002
IC1301
IC1302
IC1304
Click on the first or last page to see other KV-25FS12 service manuals if exist.