Waveforms - Pioneer XV-EV1000 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 to 10 : reference A1 (DVD), T2-chp 19, Color-bar
No. 11 to 14 : reference A1 (DVD), T1
B
IC201-pin 39 [TROPENPWM]
2
V: 1V/div. H: 5µsec/div.
[Tray stops]
C
IC201-pin37 [DMSO]
3
V: 1V/div. H: 10µsec/div.
[TRAY OPEN]
D
CN102-pin 11, 10, 9 (IC101-pin 14, 13, 12)
4
[SPINDLE (WVU)]
V: 2V/div. H: 2msec/div.
E
IC401-pin23 [CompositeVideo Out]
8
V: 1V/div. H: 10µsec/div.
F
50
1
2
IC201-pin47 [FG]
1
V: 1V/div. H: 2msec/div.
[Tray is opening]
GND
V: 1V/div. H: 10µsec/div.
[DVD PLAY]
GND
GND
IC401-pin21 [S VIDEO OUT - Y]
9
V: 1V/div. H: 10µsec/div.
IC401-pin26 [S VIDEO OUT - C]
10
V: 1V/div. H: 10µsec/div.
GND
XV-EV1000
2
3
GND
[Tray is closing]
GND
V: 1V/div. H: 2sec/div.
[DMSO]
GND
Tray :
PLAY
opening
Pless OPEN key Pless PLAY key
Braking a turn of disc
IC201-pin225 [ASPDIF AUDIO DIGITAL SIGNAL]
11
V: 2V/div. H: 500nsec/div.
9
10
3
4
GND
GND
GND
9
GND
10
GND
4