Sony KV-25FS12 Manual De Servicio página 32

MB BOARD IC VOLTAGE LIST
IC1001 23
pin volt 24
1 1.7 25
2 4.8 26
3 N/C 27
4 0.4 28
5 0.0 29
6 0.1 30
7 N/C 31
8 0.0 32
9 0.0 33
10 0.1 34
11 0.1 35
12 5.0 36
13 0.0 37
14 4.3 38
15 4.9 39
16 0.0 40
17 -0.2 41
18 4.9 42
19 5.0 43
20 2.1 44
21 0.2 45
22 2.3 46
MB BOARD WAVEFORMS
1
4.7 Vp-p (H)
5
0.9 Vp-p (H)
9
1.7 Vp-p (H)
13
5.3 Vp-p (H)
17
1.3 Vp-p (H)
GND 47 5.0
2.2 48 0.0
2.3 49 0.0
GND 50 0.0 pin
4.9 51 0.0
2.2 52 0.0
2.3 IC1002
5.0 pin volt
0.0 1 4.6
5.0 2 4.8
2.4 3 4.6
4.4 4 N/C
5.0 5 N/C
4.8 6 8.9
4.8 7 3.8
4.8 8 GND
4.8 IC1003
N/C pin volt
0.0 1 GND
0.1 2 GND
5.0 3 GND
0.1 4 GND
5.0 5 4.8
0.0 6 4.8
2
2.7 Vp-p (8 MHz)
6
4.0 Vp-p (V)
10
1.4 Vp-p (V)
14
3.8 Vp-p (H)
18
0.7 Vp-p (H)
7 GND 21 1.5
8 5.0 22 1.5
IC1301 23 1.6
volt 24 1.4
1 3.3 25 N/C
2 5.1 26 4.6
3 1.3 27 4.6
4 5.1 28 4.6
5 4.8 29 0.0
6 4.3 30 4.5
7 6.3 31 4.5
8 5.0 32 4.5
9 5.1 33 8.7
10 GND 34 4.9
11 4.1 35 4.8
12 2.4 36 0.2
13 3.5 37 4.6
14 3.5 38 5.3
15 5.4 39 5.3
16 7.7 40 GND
17 1.6 41 5.1
18 3.5 42 6.2
19 2.3 43 N/C
20 2.6 44 8.7
3
1.0 Vp-p (H)
7
4.0 Vp-p (V)
11
1.4 Vp-p (V)
15
3.1 Vp-p (H)
19
1.2 Vp-p (H)
— 32 —
KV-25FS12 / 25FS12C
45 5.2 19 1.9
46 4.6 20 2.4
47 1.7 IC1304
48 N/C pin volt
IC1302 1 4.6
pin volt 2 0.1
1 5 3 4.6
2 1.4 4 0.1
3 3.2 5 4.6
4 2.4 6 8.9
5 1.9 7 3.8
6 5.0 8 GND
7 0.0 IC1305
8 5.0 pin volt
9 4.9 1 GND
10 4.9 2 5.0
11 0.0 3 1.6
12 0.0 4 7.4
13 2.5 5 5.0
14 2.1 6 GND
15 5.0 7 GND
16 0.0 8 N/C
17 2.5
All voltages are in V
18 3.2
4
0.7 Vp-p (H)
8
0.9 Vp-p (H)
12
5.5 Vp-p (H)
16
3.1 Vp-p (H)