Sony Trinitron CPD-420GS, Руководство по обслуживанию

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—28— —29—
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CPD-420GS/GST
mmA BOARD TRANSISTOR
VOLTAGE LIST
All voltages are in V
B C E
Q001 11.53 620.00 11.03
(2) Schematic Diagram of A Board
IC001
pin volt
1 4.70
2 4.30
3 2.47
4 2.56
5 2.09
6 3.25
7 2.00
8 5.03
9 1.97
10 3.03
11 1.96
12 0.10
13 0.01
14 0.00
15 0.00
All voltages are in V
A BOARD IC VOLTAGE LIST
16 0.03
17 0.01
18 0.54
19 GND
20 2.54
21 3.66
22 11.81
23 GND
24 2.45
25 3.65
26 GND
27 2.54
28 3.65
29 GND
30 0.19
IC002
pin volt
1 54.20
2 GND
3 55.50
4 GND
5 53.80
6 77.80
7 GND
8 2.52
9 2.43
10 11.89
11 2.52
IC003
pin volt
1 2.99
2 GND
3 4.69
4 4.33
5 0.47
6 0.04
7 0.00
8 0.03
9 5.03
10 GND
11 2.23
12 2.49
13 GND
14 0.00
15 0.00
16 0.01
17 0.01
18 3.79
19 5.03
20 0.91
21 0.96
22 1.02
23 3.41
24 1.22
IC004
pin volt
1 3.76
2 11.90
3 3.78
4 3.80
5 182.30
6 1.13
7 103.40
8 GND
9 100.90
10 101.10
11 1.35
12 98.50
13 110.10
14 1.22
15 107.70
IC005
pin volt
1 N.C.
2 GND
3 GND
4 GND
5 3.21
6 3.24
7 10.92
8 11.89
IC006
pin volt
1 N.C.
2 GND
3 GND
4 4.80
5 0.29
6 0.29
7 GND
8 4.03
9 4.03
10 0.29
11 GND
12 GND
13 N.C.
14 5.08
IC007
1 N.C.
2 N.C.
3 N.C.
4 GND
5 4.58
6 4.59
7 0.00
8 5.03
IC008
1 5.02
2 1.42
3 5.02
4 5.02
5 1.42
6 5.02
7 1.42
8 4.48
9 0.00
10 GND
11 1.42
12 0.00
13 1.42
14 0.00
15 0.00
16 1.42
17 0.37
18 0.03
19 0.05
20 GND
21 0.08
22 4.52
23 GND
24 5.02
25 N.C.
26 GND
27 2.09
28 5.02
29 GND
30 2.07
31 5.02
32 GND
33 GND
34 GND
35 2.08
36 5.02
IC009
pin volt
I 11.89
G GND
O 5.03
DIODE
D002 G4
D003 G3
D004 G4
D005 F2
D007 G1
D008 G2
D014 B5
D015 G4
D022 C5
D023 E4
D024 E4
D025 E5
D104 B2
D105 B2
D106 C2
D108 A4
D109 C2
D111 F3
D120 A3
D204 A2
D205 A2
D206 B2
A BOARD
SEMICONDUCTOR LOCATION
D208 B3
D209 B2
D211 F3
D220 B3
D304 A2
D305 A2
D306 B3
D308 C4
D309 B2
D311 F2
D320 B3
IC
IC001 D2
IC002 A1
IC003 E5
IC004 B3
IC005 C4
IC006 F1
IC007 F4
IC008 E2
IC009 D5
TRANSISTOR
Q001 C5
A BOARD WAVEFORMS
4.66V
p-p
(H) 4.37V
p-p
(H)
4.37V
p-p
(H)
52.50V
p-p
(H)
38.75V
p-p
(H)
38.44V
p-p
(H)
48.13V
p-p
(H)
100.0 VDC above GND
38.13V
p-p
(H)
51.88V
p-p
(H)
0.76V
p-p
(H)
0.76V
p-p
(H) 0.76V
p-p
(H)
1 2 3
4 5 6
7 8 9
10 11 12
1 2 3 4 5
A
B
C
D
E
F
G
A
[Video] A BOARD
31 x 11 Foldout-2.fm Page 1 Wednesday, October 14, 1998 8:30 AM