Pioneer PRO-730HDI Service Manual page 56

1
WAVEFORMS and VOLTAGES
A
Note : The encircled numbers denote measuring point in the schematic diagram.
J F3/5
VIDEO UCOM SERVICE ASSY
• Input signal
Input : INPUT 1 (COMPOSITE)
Video Signal : EIA color-bar
CN4301 - pin 18 (AUDIOL)
53
V: 0.5V/div. H: 500µsec/div.
B
IC4301 - pin 45 (Sharpness Y in)
54
V: 1V/div. H: 5µsec/div.
C
IC4301 - pin 47 (Sharpness Pb in)
55
V: 1V/div. H: 5µsec/div.
D
IC4306 (M52055FP)
No Voltage (V)
1 4.7
2 -
3 3.2
4 0
5 3.2
6 3.2
E
7 -
8 4.7
9 4.7
10 0
11 4.7
12 -
13 9.1
14 4.7
15 0
16 4.7
F
56
1
2
IC4301 - pin 1 (Sharpness Pr in)
56
V: 1V/div. H: 5µsec/div.
GND
IC4301 - pin 27 (Sharpness Y out)
57
V: 1V/div. H: 5µsec/div.
GND
IC4301 - pin 15 (Sharpness Pb out)
58
V: 1V/div. H: 5µsec/div.
GND
J F 4/5
VIDEO UCOM ASSY
IC4608 - pin 51 (Jungle input Y)
60
V: 1V/div. H: 5µsec/div.
GND
IC4608 - pin 52 (Jungle input Pb)
61
V: 1V/div. H: 5µsec/div.
GND
PRO-730HDI
2
3
IC4301 - pin 13 (Sharpness Pr out)
59
V: 1V/div. H: 5µsec/div.
GND
IC4301 (AN5395FBP)
No Voltage (V)
1 5.6
2 0
3 2.6
4 -
5 9.0
6 9.0
GND
7 2.6
8 0
9 -
10 -
11 0
12 2.6
13 4.6
14 0
15 4.6
GND
16 3.1
IC4608 - pin 53 (Jungle input Pr)
62
V: 1V/div. H: 5µsec/div.
GND
IC4608 - pin 34 (Jungle output R)
63
V: 1V/div. H: 5µsec/div.
GND
3
4
IC4305 (M52055FP)
No Voltage (V)
1 4.7
2 -
3 3.2
4 0
5 3.2
6 3.2
7 -
8 4.7
9 4.7
10 0
11 4.7
12 -
13 9.1
14 4.7
GND
15 0
16 4.7
No Voltage (V) No Voltage (V)
17 5.6
33 2.9
18 0
34 5.3
19 8.9
35 3.6
20 4.1
36 2.8
21 5.2
37 3.6
22 2.7
38 -
23 9.0
39 0
24 4.7
40 4.0
25 0
41 0
26 3.6
42 0
27 4.1
43 0/5
28 6.3
44 0
29 3.6
45 5.6
30 2.5
46 0
31 3.8 47 5.6
32 2.7
48 4.0
IC4608 - pin 32 (Jungle output G)
64
V: 1V/div. H: 5µsec/div.
IC4608 - pin 30 (Jungle output B)
65
V: 1V/div. H: 5µsec/div.
4
GND
GND