Sony TRINITRON KV-27S42 Service Manual page 26

A BOARD SCHEMATIC DIAGRAM
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857 3 A Board Schem.p65 1
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3/26/99, 2:30 PM
A BOARD WAVEFORMS
1 2 3
1.0 Vp-p (H) 2.0 Vp-p (H) 4.7 Vp-p (H)
5 6 7
1.0 Vp-p (H) 0.7 Vp-p (H) 0.9 Vp-p (H)
10
9 11
2.0 Vp-p (H) 0.9 Vp-p (H) 1.7 Vp-p (H)
13 14 15
1.4 Vp-p (V) 5.5 Vp-p (H) 5.3 Vp-p (H)
17 18 19 20
3.1 Vp-p (H) 3.1 Vp-p (H) 1.3 Vp-p (H)
21 22 23
1.2 Vp-p (H) 2.5 Vp-p (H) 182.8 Vp-p (H)
25 26 27
1.08 KVp-p (H) 30.4 Vp-p (H) 54.3 Vp-p (V)
29 30
2.4 Vp-p (V) 112.5 Vp-p (H)
A BOARD IC VOLTAGE LIST
IC001 IC002 8 4.2 18 3.5 23 5.1
pin volt pin volt 9 5.1 19 3.1 24 0.0
1 0.6 1 7.1 10 4.2 20 2.5 25 1.1
2 4.8 2 GND 11 NC 21 1.6 26 0.0
3 0.0 3 5.4 12 GND 22 1.8 27 2.5
4 0.0 4 GND 13 4.9 23 1.8 28 5.1
5 4.8 5 GND 14 4.3 24 1.8 29 2.3
6 0.0 6 4.9 15 4.3 25 NC 30 2.3
7 0.0 7 GND 16 4.3 26 NC IC401
8 0.2 8 4.9 17 GND 27 NC pin volt
9 0.0 IC003 18 GND 28 NC 1 0.7
10 NC pin volt 19 4.9 29 0.0 2 NC
11 NC 1 GND 20 4.9 30 4.6 3 2.3
12 3.3 2 GND 21 GND 31 4.6 4 14.3
13 0.0 3 GND 22 NC 32 4.6 5 2.3
14 4.9 4 GND 23 5.0 33 8.9 6 GND
15 0.0 5 4.9 24 NC 34 4.9 7 0.3
16 0.0 6 4.9 25 4.2 35 4.9 8 6.9
17 -0.3 7 GND 26 4.2 36 0.0 9 GND
18 4.9 8 4.9 27 5.0 37 4.4 10 6.9
19 4.9 IC004 28 NC 38 5.2 11 6.9
20 1.8 pin volt 29 NC 39 5.2 12 GND
21 0.0 1 2.9 30 GND 40 GND 13 6.9
22 2.2 2 4.9 31 NC 41 NC IC402
23 GND 3 GND 32 4.2 42 8.9 pin volt
24 2.3 33 4.2 43 5.2 1 4.4
IC010
25 2.3 pin volt 34 5.0 44 9.0 2 GND
26 GND 1 0.0 35 0.0 45 4.9 3 4.4
27 4.9 2 0.5 36 4.3 46 4.7 4 4.4
28 0.0 3 0.0 37 NC 47 1.9 5 4.4
29 0.0 4 GND 38 9.0 48 NC 6 4.4
30 4.9 5 NC 39 NC IC302 7 4.4
31 4.9 6 9.0 40 4.2 1 5.1 8 4.4
32 2.8 7 0.0 41 5.1 2 0.0 9 4.4
33 4.9 8 GND 42 4.2 3 0.0 10 1.5
34 2.5 IC202 IC301 4 NC 11 4.9
35 NC pin volt pin volt 5 1.2 12 4.9
36 4.9 1 7.6 1 3.4 6 0.0 13 5.6
37 4.9 2 7.6 2 5.1 7 5.1 14 4.4
38 4.9 3 7.6 3 4.3 8 1.1 15 4.4
39 4.9 4 GND 4 5.1 9 5.1 16 4.4
40 0.5 5 7.6 5 4.8 10 0.7 17 4.4
41 0.0 6 7.6 6 4.4 11 0.0 18 4.4
42 0.0 7 7.6 7 2.2 12 2.0 19 4.4
43 4.9 8 15.3 8 4.9 13 2.8 20 4.4
44 0.1 IC203 9 5.1 14 1.0 21 9.0
45 NC pin volt 10 GND 15 2.2 22 4.4
46 4.9 1 4.9 11 4.3 16 0.0 IC521
47 0.0 2 4.2 12 2.4 17 0.0 pin volt
48 0.0 3 4.9 13 3.5 18 0 1 0.1
49 0.0 4 4.2 14 3.5 19 0 2 3.8
50 0.0 5 4.9 15 5.7 20 NC 3 2.5
51 0.0 6 6.1 16 7.6 21 0 4 GND
52 0.0 7 4.9 17 0.7 22 5.1 5 9.1
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KV-27S42/27S46/27S66/29AL42/29AL42C/29AL66/
29AL66C/29SL42/29SL42C/29SL46/29XL42M
4
3.6 Vp-p (8MHz)
8
4.0 Vp-p (V)
12
1.4 Vp-p (V)
16
3.8 Vp-p (H)
0.7 Vp-p (H)
24
23.4 Vp-p (H)
28
31.1 Vp-p (V)
A BOARD IC VOLTAGE LIST
6 10.2 B C E B C E
7 0.1 Q001 4.3 4.8 4.9 Q351 1.4 8.3 0.8
8 13.8 Q080 0.0 3.9 GND Q352 8.3 1.2 8.9
IC541
Q082 0.2 4.6 GND Q353 1.2 GND 1.8
pin volt Q083 0.0 0.6 GND Q354 1.1 GND 1.7
1 1.6
Q101 0.0 4.6 GND Q355 1.7 8.2 1.1
2 13.8
Q170 4.4 9.0 0.0 Q356 8.2 1.5 8.8
3 -13.4
Q200 0.0 0.0 GND Q357 1.5 GND 2.2
4 -15.3
Q201 0.6 0.0 GND Q358 5.9 9.0 5.2
5 0.0
Q203 2.4 GND 0.7 Q359 3.8 GND 4.4
6 14.6
Q280 5.2 GND 5.9 Q360 4.7 GND 5.3
7 1.6
Q281 4.1 GND 4.7 Q361 1.3 5.1 1.2
IC601
Q282 4.1 GND 4.7 Q390 5.0 9.0 4.4
pin volt
Q283 0.0 5.9 GND Q391 0.0 5.0 GND
1 1.8
Q284 0.6 0.0 GND Q501 -0.1 97.3 GND
2 0.2
Q285 0.6 0.0 GND Q521 0.1 4.2 GND
3 151.7
Q286 4.4 GND 4.9 Q522 0.4 11.2 GND
4 17.3
Q287 5.0 GND 5.7 Q550 0.7 0.1 GND
5 GND
Q288 7.3 9.0 6.7 Q555 2.1 4.0 1.5
IC602
Q300 0.2 3.5 GND Q571 134.0 0.8 134.6
pin volt
Q302 4.4 9.0 3.8 Q601 -0.1 0.2 0.0
1 135
Q305 3.8 GND 4.4 Q602 0.0 17.0 0.0
2 121
Q306 1.7 GND 2.4 Q603 17.0 2.9 17.3
3 GND
Q307 1.8 GND 2.4 Q604 0.1 3.9 GND
IC604
pin volt Q308 1.8 GND 2.4 Q607 0.7 0.1 GND
Q309 3.6 1.6 3.8 Q610 0.0 0.7 GND
IN 11.7
OUT 9.0 Q310 3.6 GND 3.8 Q630 0.0 135.0 GND
Q349 5.2 9.0 4.6 Q650 5.7 9.0 5.1
GND GND
Q350 0.7 GND 1.4
All voltages are in V
All voltages are in V
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