Pioneer PRO-730HD Service Manual page 68

1
WAVEFORMS and VOLTAGES
A
Note : The encircled numbers denote measuring point in the schematic diagram.
J 2/5
VIDEO UCOM SERVICE ASSY
• Condition: Picure Quality : STANDARD
Range
Foot of R2809
32
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
B
Foot of R2832
33
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
C
Foot of R2867
34
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
D
C2856 + terminal (MYIN)
35
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
E
C2855 + terminal (MB-YIN)
36
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
F
68
1
2
: DC range
C2854 + terminal (MR-YIN)
37
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
GND
Foot of R2888 (MHW)
38
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
GND
Foot of R2887 (MVW)
39
V: 1V/div. H: 2msec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
GND
Foot of R2901
40
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
GND
Foot of R2922
41
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
GND
PRO-730HD
2
3
Foot of R2942
42
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
GND
C2910 + terminal (SYIN)
43
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
GND
C2909 + terminal (SB-YIN)
44
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
GND
C2908 + terminal (SR-YIN)
45
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
GND
Foot of R2891 (SHW)
46
V: 1V/div. H: 10µsec/div.
(Input : INPUT1 (COMPOSITE),
EIA color-bar)
GND
3
4
GND
GND
GND
GND
GND
4