Sharp 50NP4 Service Manual page 82

SIGNAL 1 OF 3
SIGNAL 2 OF 3
1
A
B
C
D
E
1
BASIC CIRCUIT DIAGRAM
2 3
All DC voltage to be measured with a tester (100k /V). Voltage taken on a complex color bar signal including a standard color bar signal.
Since this is a basic circuit diagram, the value of the parts is subject to be altered for improvement.
2 3
80
PRODUCT SAFETY NOTE: Components marked with a
safety. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE of this Service
Manual. DonÕt degrade the safety of the receiver through improper servicing.
4 5
SIGNAL 2 0F 3
4 5
and shaded have special characteristics important to
6
Circuit Pin Voltage Circuit Pin Voltage
No. No. VDC No. No. VDC
1 4 B 0.7
2 4 Q201 C 0
3 0 E 0
4 0 B 0.7
5 0 Q202 C 0
6 1.8 E 0
7 6.1 B 0.7
8 0.2 Q203 C 0
9 0.5 E 0
10 7.5 B 0.7
11 0 Q204 C 0
12 2.2 E 0
A
13 4.9 B 7
14 0.2 Q205 C 9.2
15 1.2 E 6.4
16 0 B 1.7
17 0.2 Q206 C 9.2
18 9.1 E 1.1
19 0 B 0.7
20 1.6 Q207 C 0
21 2.7 E 0
22 1.4 B 3.9
23 0 Q208 C 0
I201 24 0 E 4.5
25 1 B 5
26 0.2 Q209 C 9.2
27 0.2 E 5.4
28 0 B 4
29 1.4 Q210 C 0
30 1.5 E 4.6
31 1.4 B 5
32 0 Q211 C 9.2
33 4.9 E 5.4
34 4.9 B 2.7
35 4.9 Q212 C 0
36 0 E 0
37 2.2 B 3.8
38 4.3 Q213 C 9.1
39 2.7 E 3.2
40 2.8 B 4
41 5 Q214 C 9.1
42 5 E 3.4
B
43 0.1 B 0
44 3.2 Q215 C 9.1
45 0 E 0.2
46 0 B 2.7
47 2.4 Q216 C 0
48 2.5 E 3.4
1 4.9 B 4.8
2 5 Q217 C 9.1
3 0.2 E 4.1
4 0.2 B 2.5
5 0 Q220 C 0
6 0 E 3.2
7 0 B 2.4
I202 8 0 Q221 C 0
9 4.3 E 3
10 4.3 B 2.2
11 4.3 Q222 C 0
12 0.2 E 2.9
13 0.2 B 1.4
14 0.2 Q223 C 0
15 4.9 E 2
16 5.1 B 3.7
1 0.2 Q226 C 8.5
2 4.9 E 3.1
3 4.9 B 8.5
4 0.2 Q227 C 5.5
5 5 E 9.1
6 0 B 5.5
7 0 Q228 C 9.1
C I203 8 5.1 E 4.9
9 0 B 5.5
10 0 Q230 C 4.9
11 0.2 E 9.1
12 0.2 B 3.7
13 4.9 Q232 C 8.5
14 5.1 E 3.1
1 3.7 B 8.5
2 0 Q233 C 5.5
3 3.7 E 9.1
4 0 B 6.1
5 3.7 Q235 C 9.1
6 0 E 5.5
7 0 B 5.5
8 0 Q237 C 9.1
9 0 E 4.9
10 0 B 0.7
11 0 Q239 C 0.1
I205 12 0 E 0
13 0 B 4.2
14 0 Q240 C 9.1
15 2.2 E 4.9
16 4.2
17 0
18 2.6
19 2.2
20 5
21 2.2
22 0
23 0
D
24 0
1 2.6
2 5
I207 3 0
4 5
5 5
E
6