Waveforms - Pioneer DV-285-S Service Manual

1

3.10 WAVEFORMS

Note : The encircled numbers denote measuring point in the schematic diagram.
A
Measurement condition : No. 1 to 2 and 9 to 14 : reference A1 (DVD), T2-chp 19, Color-bar
No. 3 to 8
A
DVD MT PCB ASSY
Foot of C626 [RF](IC4002 - pin 6)
1
V: 200mV/div. H: 0.1µsec/div.
B
C
Foot of R4004 (IC8004 - pin 1)
4
[AUDIO DAC -BCK]
V: 2V/div. H: 200nsec/div.
D
Foot of R4050 (IC8004 - pin 3)
5
[AUDIO DAC -LRCK]
V: 2V/div. H: 5µsec/div.
(IC8002 - pin 20)
10
[Component Video out -Y]
E
V: 1V/div. H: 10µsec/div.
(IC8002 - pin 18)
11
[Component Video out -Cb]
V: 2V/div. H: 10µsec/div.
(IC8002 - pin 16)
12
[Component Video out -Cr]
V: 2V/div. H: 10µsec/div.
F
30
1
2
: reference A1 (DVD), T2-chp 1
GND
Foot of R4050 (IC8004 - pin 3)
6
[AUDIO DAC -LRCK]
Foot of R8047 (IC8004 - pin 1)
7
[AUDIO DAC -BCK]
Foot of R4043 (IC8004 - pin 2)
8
[AUDIO DAC -DATA]
(Waveform of DATA is unsettled.)
10
11
12
DV-285-S
2
3
Foot of R8070 (IC8004 - pin 16)
3
6
7
8
V: 2V/div. H: 500nsec/div.
(IC8002 - pin 21)
13
[S Video out -Y]
V: 1V/div. H: 10µsec/div.
(IC8002 - pin 26)
14
[S Video out -C]
V: 1V/div. H: 10µsec/div.
3
4
[AUDIO DAC -MCLK]
(IC8002 - pin 23)
9
[Composite Video out]
V: 1V/div. H: 10µsec/div.
4
13
14