K Board - Sony KV-25FS12 Manual De Servicio

K BOARD SCHEMATIC DIAGRAM
1 |
CN402
3P
TO MB BOARD
CN1000
A
R456
—
100
B
C446
100
16V
—
R437
220
C
—
D
—
E
—
(AUDIO PROCESSOR)
F
K
[AUDIO PROCESSOR]
1 |
A
—
B
—
C
—
2 | 3 |
C417
R455 4.7
100 C416
4.7
R434
9V
4.7k
Q432
5.1V
R435 2SB709A
R436 220
BUFFER
4.7k
5.2V
R438
JR474 220
0 SHORT
4.5V
Q433
2SB709A 4.5V
BUFFER
9V
C423
4.7
JR408
C458
JW(5mm)
AUDIO-R
JW408
10.0MM
JW407
0V
R433 0
0.3V
Q430 Q431
2SD601AX 2SD601A
R432
MUTE MUTE
10k
R431
0.3V
10k
C441
C440
100 0.1
25V
F
CN450
20P
TO A BOARD
CN460
2 |
4 | 5
C418 C419 C409
0.1 1 16V :CHIP 0.0015 B:CHIP
25V
:CHIP
C408
0.22
25V
:CHIP
AUDIO-R
20 19 18 17 16 15 14 13 12 11 10 9
IC404 NJW1130AG-TE2 AUDIO PROCESSOR
21 22 23 24 25 26 27 28 29 30 31 32
C407
C415 0.22
4.7 25V
:CHIP
C406
0.0015
C414 B:CHIP
4.7
C405
C422
0.033
4.7
C413 :CHIP
4.7
C404
0.0033
B:CHIP
C412
0.1
25V R469
:CHIP 0
C475
0.1
AUDIO-L
9V
R430 R439
4.7k
4.7k
0V
:CHIP
:CHIP
L410
K BOARD IC VOLTAGE LIST
IC404 13
pin volt 14
1 4.5 15
2 4.5 16
3 4.5 17
4 N/C 18
5 4.5 19
6 N/C 20
7 4.7 21
8 4.5 22
9 4.5 23
10 4.5 24
11 N/C 25
12 4.5 26
— 30 —
| 6 |
C410
0.033 :CHIP
R470
R403
C411 C490 100
0
0 1/10W
0.0033
R468
B:CHIP 0
R404 100
JW405
5MM
AUDIO-R
8 7 6 5 4 3 2 1
33 34 35 36 37 38 39 40
R442
220
R405
100
R409
100
R410
100
C448
JW(5mm)
AUDIO-L
AUDIO-R
BA5-902-K
4.5 27
1.0 28
4.5 29
0.9 30
0.9 31
4.8 32
4.9 33
GND 34
8.9 35
N/C 36
N/C 37
1.3 38
1.3 39
4.4 40
All voltages are in V
KV-25FS12 / 25FS12C
C447
JW(5mm)
3.9
4.5
4.5
N/C
4.5
4.5
4.5
4.5
N/C
N/C
N/C
4.5
4.5
4.5