Sony TRINITRON KV-27V42 Service Manual page 25

A BOARD SCHEMATIC DIAGRAM
1 2 3 4 5
A
B
C
D
E
F
G
H
I
J
K
L
M
N
— 31 —
858 A Schematic.p65 1
6 7 8 9 10 11 12
— 32 —
13 14 15 16 17 18 19
— 33 —
4/22/99, 2:37 PM
KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T
A BOARD WAVEFORMS
20
1 2 3 4
1.0 Vp-p (H) 2.0 Vp-p (H) 4.7 Vp-p (H) 3.6 Vp-p (8MHz)
5 6 7 8
1.0 Vp-p (H) 0.7 Vp-p (H) 0.9 Vp-p (H) 4.0 Vp-p (V)
10 12
9 11
2.0 Vp-p (H) 0.9 Vp-p (H) 1.7 Vp-p (H) 1.4 Vp-p (V)
13 14 15 16
1.4 Vp-p (V) 5.5 Vp-p (H) 5.3 Vp-p (H) 3.8 Vp-p (H)
17 18 19 20
3.1 Vp-p (H) 3.1 Vp-p (H) 1.3 Vp-p (H) 0.7 Vp-p (H)
21 22 23 24
1.2 Vp-p (H) 2.5 Vp-p (H) 182.8 Vp-p (H) 23.4 Vp-p (H)
25 26 27 28
1.08 KVp-p (H) 30.4 Vp-p (H) 54.3 Vp-p (V) 31.1 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 6 10.2
pin volt pin volt 9 5.1 19 3.1 24 0.0 7 0.1
1 0.6 1 7.1 10 4.2 20 2.5 25 1.1 8 13.8
2 4.8 2 GND 11 NC 21 1.6 26 0.0 IC541
3 0.0 3 5.4 12 GND 22 1.8 27 2.5 pin volt
4 0.0 4 GND 13 4.9 23 1.8 28 5.1 1 1.6
5 4.8 5 GND 14 4.3 24 1.8 29 2.3 2 13.8
6 0.0 6 4.9 15 4.3 25 NC 30 2.3 3 -13.4
7 0.0 7 GND 16 4.3 26 NC IC401 4 -15.3
8 0.2 8 4.9 17 GND 27 NC pin volt 5 0.0
9 0.0 IC003 18 GND 28 NC 1 0.7 6 14.6
10 NC pin volt 19 4.9 29 0.0 2 NC 7 1.6
11 NC 1 GND 20 4.9 30 4.6 3 2.3 IC601
12 3.3 2 GND 21 GND 31 4.6 4 14.3 pin volt
13 0.0 3 GND 22 NC 32 4.6 5 2.3 1 1.8
14 4.9 4 GND 23 5.0 33 8.9 6 GND 2 0.2
15 0.0 5 4.9 24 NC 34 4.9 7 0.3 3 151.7
16 0.0 6 4.9 25 4.2 35 4.9 8 6.9 4 17.3
17 -0.3 7 GND 26 4.2 36 0.0 9 GND 5 GND
18 4.9 8 4.9 27 5.0 37 4.4 10 6.9 IC602
19 4.9 IC004 28 NC 38 5.2 11 6.9 pin volt
20 1.8 pin volt 29 NC 39 5.2 12 GND 1 135
21 0.0 1 2.9 30 GND 40 GND 13 6.9 2 121
22 2.2 2 4.9 31 NC 41 NC IC402 3 GND
23 GND 3 GND 32 4.2 42 8.9 pin volt
IC604
24 2.3 IC010 33 4.2 43 5.2 1 4.4 pin volt
25 2.3 pin volt 34 5.0 44 9.0 2 GND IN 11.7
26 GND 1 0.0 35 0.0 45 4.9 3 4.4 OUT 9.0
27 4.9 2 0.5 36 4.3 46 4.7 4 4.4 GND GND
28 0.0 3 0.0 37 NC 47 1.9 5 4.4
All voltages are in V
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
— 34 —
A BOARD TRANSISTOR
VOLTAGE LIST
B C E B C E
Q001 4.3 4.8 4.9 Q351 1.4 8.3 0.8
Q080 0.0 3.9 GND Q352 8.3 1.2 8.9
Q082 0.2 4.6 GND Q353 1.2 GND 1.8
Q083 0.0 0.6 GND Q354 1.1 GND 1.7
Q101 0.0 4.6 GND Q355 1.7 8.2 1.1
Q170 4.4 9.0 0.0 Q356 8.2 1.5 8.8
Q200 0.0 0.0 GND Q357 1.5 GND 2.2
Q201 0.6 0.0 GND Q358 5.9 9.0 5.2
Q203 2.4 GND 0.7 Q359 3.8 GND 4.4
Q280 5.2 GND 5.9 Q360 4.7 GND 5.3
Q281 4.1 GND 4.7 Q361 1.3 5.1 1.2
Q282 4.1 GND 4.7 Q390 5.0 9.0 4.4
Q283 0.0 5.9 GND Q391 0.0 5.0 GND
Q284 0.6 0.0 GND Q501 -0.1 97.3 GND
Q285 0.6 0.0 GND Q521 0.1 4.2 GND
Q286 4.4 GND 4.9 Q522 0.4 11.2 GND
Q287 5.0 GND 5.7 Q550 0.7 0.1 GND
Q288 7.3 9.0 6.7 Q555 2.1 4.0 1.5
Q300 0.2 3.5 GND Q571 134.0 0.8 134.6
Q302 4.4 9.0 3.8 Q601 -0.1 0.2 0.0
Q305 3.8 GND 4.4 Q602 0.0 17.0 0.0
Q306 1.7 GND 2.4 Q603 17.0 2.9 17.3
Q307 1.8 GND 2.4 Q604 0.1 3.9 GND
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
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
Q350 0.7 GND 1.4
All voltages are in V