Black Box DV900 Manuel de service Page 44

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XV-DV99
44
1234
1234
C
D
F
A
B
E
3.15 WAVEFORMS
1
IC301 - pin 4 [RFOUT]
V: 200mV/div. H: 0.1µsec/div.
6
IC501 - pin 23 [Composite Video out]
V: 1V/div. H: 10µsec/div.
7
IC501 - pin 21 [S Video out-Y]
V: 1V/div. H: 10µsec/div.
8
IC501 - pin 26 [S Video out-C]
V: 1V/div. H: 10µsec/div.
9
IC501 - pin 20 [Component Video out-Y]
V: 1V/div. H: 10µsec/div.
10
IC501 - pin 18 [Component Video out-Pb]
V: 2V/div. H: 10µsec/div.
11
IC501 - pin 16 [Component Video out-Pr]
V: 2V/div. H: 10µsec/div.
2
IC301 - pin 36 [FG]
V: 1V/div. H: 5msec/div.
3
IC101 - pin 14 [A1], 13 [A2], 12 [A3]
V: 2V/div. H: 2msec/div.
4
IC301 - pin 55 [LOAD_DRV]
V: 1V/div. H: 500nsec/div.
5
IC301 - pin 44 [SPDL_PDM]
DVDM ASSY
B
Measurement condition ; No. 1, 2 and 12 to 17 : MJK1, Title 1-chp 1 No. 13, 14 and 17 : DVD-REF-A1, T2-Chap.1
No. 8 : CD, ABEX-784 Track 1 No. 3 to 5 : DVD-REF-A1, T2-Chap.19
Note : The encircled numbers denote measuring point in the schematic diagram.
GND
[Tray stops]
[PLAY STOP PLAY] [PLAY] [STOP]
[Tray is opening] [Tray is closing]
V: 2V/div. H: 1sec/div.
PLAY STOP PLAY
V: 2V/div. H: 500nsec/div. V: 2V/div. H: 500nsec/div.
Brakes
ON
Accelerator
ON
7
8
9
10
11
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