XV-GX3
34
1
2
3
4
1
2
3
4
C
D
F
A
B
E
3.10 WAVEFORMS
Note : The encircled numbers denote measuring point in the schematic diagram.
Measurement condition ;
No. 1 to 10
: reference A1 (DVD), T2-chp 19, Color-bar
No. 11 to 14 : reference A1 (DVD), T1
DVDM ASSY
B
2
IC201-pin 39 [TROPENPWM]
V: 1V/div. H: 5
µ
sec/div.
3
IC201-pin37 [DMSO]
V: 1V/div. H: 10
µ
sec/div.
V: 1V/div. H: 10
µ
sec/div.
V: 1V/div. H: 2sec/div.
1
IC201-pin47 [FG]
V: 1V/div. H: 2msec/div.
8
IC401-pin23 [CompositeVideo Out]
V: 1V/div. H: 10
µ
sec/div.
4
CN102-pin 11, 10, 9 (IC101-pin 14, 13, 12)
[SPINDLE (WVU)]
V: 2V/div. H: 2msec/div.
GND
GND
GND
GND
GND
GND
GND
GND
GND
PLAY
Tray :
opening
Pless OPEN key
Pless PLAY key
Braking a turn of disc
[Tray stops]
[TRAY OPEN]
[DVD PLAY]
[DMSO]
[Tray is opening]
[Tray is closing]
9
9
10
9
10
IC401-pin21 [S VIDEO OUT - Y]
V: 1V/div. H: 10
µ
sec/div.
10
IC401-pin26 [S VIDEO OUT - C]
V: 1V/div. H: 10
µ
sec/div.
GND
GND
11
IC201-pin225 [ASPDIF AUDIO DIGITAL SIGNAL]
V: 2V/div. H: 500nsec/div.
GND
