Dvdm Waveforms - Pioneer XV-HTD530 Service Manual

1

3.19 DVDM WAVEFORMS

A E
DVDM ASSY
Note : The encircled numbers denote measuring point in the schematic diagram.
Measurement condition : No. 1 to 2 and 8 to 13 : reference A1 (DVD), T2-chp 19, Color -bar
IC301-pin 4 (RFOUT)
1
V: 200mV/div. H: 0.1µsec/div.
B
IC301-pin 44 (SPDL_PDM)
3
[PLAY → STOP → PLAY]
Brakes
ON
PLAY
V: 2V/div. H: 1sec/div.
C
CN124-pin 5 (TRAY POS)
6
CN124-pin 7, 8
(Rotating Tray Motor drive voltage)
D
CN124-pin 4, 5, 6, 3
7
IC601-pin 114
E
CN953-pin 28 (Composite Video out)
8
V: 1V/div. H: 10µsec/div.
F
52
1
2
IC301-pin 36 (FG)
2
V: 1V/div. H: 5msec/div.
GND
[PLAY]
Accelerator
ON
PLAY PLAY
V: 2V/div. H: 500nsec/div.
[Tray stops] [Tray closing]
[Tray close]
DISC 2 DISC 3 DISC 4
Rotary tray move
V: 2V/div. H: 500msec/div.
[Tray move]
CN124-pin 4 (DISC SENS),
CN124-pin 5 (TRAY POS)
V: 2V/div. H: 1sec/div.
CN953-pin 20 (Component Video out-Y)
9
V: 1V/div. H: 10µsec/div.
CN953-pin 22 (Component Video out-Pb)
10
V: 2V/div. H: 10µsec/div.
CN953-pin 24 (Component Video out-Pr)
11
V: 2V/div. H: 10µsec/div.
2
3
[STOP]
V: 2V/div. H: 500nsec/div.
[Tray opening]
DISC 5
Elements on larger
Rotary tray stop
[Tray open]
CN124-pin 6 (OPEN),
CN124-pin 3 (CLAMP)
Loading close
Loading open
Unclamp
Clamp
V: 2V/div. H: 500msec/div.
XV-HTD530
3
4
CN122-pin 8, 7, 6 (FTS Driver -A1, A2, A3)
4
V: 2V/div. H: 2msec/div.
[PLAY]
[Tray close]
DISC 5
Rotary tray move
Rotary tray stop
V: 2V/div. H: 200msec/div.
IC601-pin 114 (ROT_DRV)
STOP
Right-hand
Left-hand
V: 2V/div. H: 10µsec/div.
CN953-pin 30 (S Video out-Y)
12
V: 1V/div. H: 10µsec/div.
CN953-pin 26 (S Video out-C)
13
V: 1V/div. H: 10µsec/div.
9
10
11
4
12
13