DV-C503
30
WAVEFORMS
Note : The encircled numbers denote measuring point in the schematic diagram.
Measurement condition : No. 1 to 4 and 6 to 11 : MJK1, Title 1-chp 1
No. 5
: CD, ABEX-784 Track 1
No. 12 to 14
: MJK1, Title 1-chp 4
No. 15 to 17
: MJK1, Title 1-chp 5
1
Foot of R169 (RF)
V: 100mV/div. H: 0.2
µ
sec/div.
2
TP2 (RFO)
V: 500mV/div. H: 0.1
µ
sec/div.
4
TP3 (Tracking Error)
(AI-Inner Tracking Off)
V: 500mV/div. H: 2msec/div.
5
IC2 - pin 39 (EFM before slice)
V: 1V/div. H: 1
µ
sec/div.
7
IC3 - pin 41 (REGB)
V: 1V/div. H: 5msec/div.
8
Foot of R261 (FPWM)
V: 1V/div. H: 5msec/div.
9
Foot of R262 (VPWM)
V: 1V/div. H: 5msec/div.
10
Foot of R263 (PPWM)
V: 1V/div. H: 5msec/div.
12
IC18 - pin 45
(Composite Video output)
V: 0.2V/div. H: 1msec/div.
13
IC18 - pin 39 (Y output)
V: 0.2V/div. H: 5msec/div.
14
IC18 - pin 36 (C output)
V: 0.2V/div. H: 5msec/div.
15
IC18 - pin 45 (C
B
output when
selecting color difference output)
V: 0.2V/div. H: 5msec/div.
18
18
19
CN55 - pin 5 (DISC SENS)
V: 2V/div. H: 1sec/div.
19
CN55 - pin 2 (TRAY POS)
V: 2V/div. H: 1sec/div.
20
CN55 - pin 4 (SED0)
V: 2V/div. H: 5sec/div.
16
IC18 - pin 39 (Y output when
selecting color difference output)
V: 0.2V/div. H: 5msec/div.
17
IC18 - pin 36 (C
R
output when
selecting color difference output)
V: 0.2V/div. H: 5msec/div.
GND
GND
GND
GND
CLOSE
Tray Close
OPEN
DISC CHANGE
GND
GND
GND
GND
GND
GND
GND
GND
GND
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