Waveforms - Pioneer XV-DV740 Service Manual

1

3.17 WAVEFORMS

Note : The encircled numbers denote measuring point in the schematic diagram.
B
DVDM ASSY
A
Measurement condition ; No. 1, 2 and 12 to 17 : MJK1, Title 1-chp 1
No. 8 : CD, ABEX-784 Track 1
IC301 - pin 4 [RFOUT]
1
V: 200mV/div. H: 0.1µsec/div.
B
IC301 - pin 55 [LOAD_DRV]
4
V: 1V/div. H: 500nsec/div.
[Tray stops]
IC301 - pin 44 [SPDL_PDM]
5
[PLAY → STOP → PLAY]
C
V: 2V/div. H: 1sec/div.
Brakes
Accelerator
ON
PLAY STOP
IC501 - pin 23 [Composite Video out]
6
V: 1V/div. H: 10µsec/div.
D
IC501 - pin 20 [Component Video out-Y]
9
V: 1V/div. H: 10µsec/div.
IC501 - pin 18 [Component Video out-Pb]
10
V: 2V/div. H: 10µsec/div.
IC501 - pin 16 [Component Video out-Pr]
11
V: 2V/div. H: 10µsec/div.
E
F
48
1
2
IC301 - pin 36 [FG]
2
V: 1V/div. H: 5msec/div.
GND
[Tray is opening]
[PLAY]
V: 2V/div. H: 500nsec/div.
ON
PLAY
IC501 - pin 21 [S Video out-Y]
7
V: 1V/div. H: 10µsec/div.
IC501 - pin 26 [S Video out-C]
8
V: 1V/div. H: 10µsec/div.
2
3
No. 13, 14 and 17 : DVD-REF-A1, T2-Chap.1
No. 3 to 5 : DVD-REF-A1, T2-Chap.19
IC101 - pin 14 [A1], 13 [A2], 12 [A3]
3
V: 2V/div. H: 2msec/div.
[Tray is closing]
[STOP]
V: 2V/div. H: 500nsec/div.
9
10
11
XV-DV740
3
4
7
8
4