Pioneer PRO-630HD Service Manual page 88

1
QQ
3 7 63 1515 0
WAVEFORMS and VOLTAGES
A
Note : The encircled numbers denote measuring point in the schematic diagram.
O
DIGITAL CONV. ASSY
• Input signal
Input : INPUT 1 (COMPOSITE)
Video Signal : EIA color-bar
Foot of R1227 (RH)
94
V: 0.5V/div. H: 2msec/div.
B
Foot of R1252 (GH)
95
V: 0.5V/div. H: 2msec/div.
C
TE
Foot of R1276 (BH)
L 13942296513
96
V: 0.5V/div. H: 2msec/div.
D
Foot of R1288 (RV)
97
V: 0.5V/div. H: 2msec/div.
E
IC1202 IC1209
(NJM4558MD)
(UPC4570G2)
No Voltage (V)
1 -0.4
www
2 2.0
3 2.0
4 -5.0
5 -0.2
F
6 -0.2
7 -0.4
8 4.9
88
1
http://www.xiaoyu163.com
2
Foot of R1301 (GV)
98
V: 0.5V/div. H: 2msec/div.
GND
Foot of R1319 (BV)
99
V: 0.5V/div. H: 2msec/div.
GND
100 Foot of R1207 (HVPARA)
V: 0.5V/div. H: 2msec/div.
GND
101
IC1209 - pin 6, 7
V: 0.5V/div. H: 5µsec/div.
GND
IC1206-IC1208,
IC1210, IC1211
(UPC4570G2)
No Voltage (V) No Voltage (V)
1 0 1
2 0 2 2.0
3 0 3 2.0
x ao
4 -5.0 4 -5.0
5 0 5
. i
6 0 6
7 0 7
8 4.9 8 4.9
2
http://www.xiaoyu163.com
3
IC1204 (CM0022AF)
No Voltage (V)
1 4.8
2 0
3 0
4 4.9
5 4.9
GND
6 4.9
7 4.9
8 4.9
9 4.9
10 4.9
11 4.9
12 0
13 4.9
14 0
15 4.9
GND
16 4.9
17 0
18 0
19 0
Q Q
20 0
3 6 7
21 0-5
22 0
23 0
24 0
25 0
26 0
27 0-5
28 3.1
GND
29 0
30 0
31 0
32 0
33 3.2
34 0-5
35 0
GND 36 3.2
37 0
38 0
39 1.2
40 2.1
0
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0
0
0
PRO-730HD
3
4
2 9 9 4
8
IC1205 (CD0031AM)
No Voltage (V) No Voltage (V)
41 0 1
42 0 2
43 0 3
44 0 4
45 0 5
46 0 6
47 0-5 7
48 0-5 8
49 0 9
50 0-5 10
51 0-5 11
52 0 12
53 4.9 13
54 0-5 14
55 0-5 15
56 0-5 16
57 0-5 17
58 0 18
59 0 19
60 0 20
1 3 1 5 0 5 8 2 9
61 0 21
62 0 22
63 0 23
64 0 24
65 0 25
66 0 26
67 3.2 27
68 1.3 28
69 1.8 29
70 2.0 30
71 1.6 31
72 0 32
73 3.2 33
74 0 34
75 3.1 35
76 3.1 36
77 3.1 37
78 0 38
79 0 39
80 0 40
41
42
43
44
45
m
46
47
co
48
.
4
2 8
9 9
0-5
0-5
0-5
0-5
0-5
0
0
2.6
3.4
4.9
0
2.5
3.4
4.9
0
2.5
3.4
4.9
0
0
9 4 2 8 9 9
0
0
0
0
2.5
4.9
0
0
0
0
4.9
3.4
2.5
0
4.9
3.4
2.5
0
4.9
3.4
2.5
0
0
4.9
4.9
0-5
0-5
0-5