DV-525
34
WAVEFORMS
Note : The encircled numbers denote measuring point in the schematic diagram.
Measurement condition : No. 1 to 4 and 6 to 11 : Disc MA1, 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
No. 18 to 20
: T2-19, Color-bar
No. 21 to 23
: T2-1
1
Foot of R169 (RF)
V: 100mV/div. H: 0.2
µ
sec/div.
2
CN7 - pin 5, 6 (RFO)
V: 500mV/div. H: 0.1
µ
sec/div.
3
IC12 - pin 70 (MY CHIP input)
V: 1V/div. H: 0.2
µ
sec/div.
4
CN7 - pin 9, 10 (Tracking Error)
(AI-Inner Tracking Off)
V: 500mV/div. H: 2msec/div.
5
IC201 - pin 39 (EFM before slice)
V: 1V/div. H: 1
µ
sec/div.
6
IC201 - pin 1 (EFM)
V: 1V/div. H: 0.2
µ
sec/div.
7
Q281 - Collector (FG)
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.
11
Foot of R264 (RPWM)
V: 1V/div. H: 5msec/div.
12
IC18 - pin 45
(Composite Video output)
V: 2V/div. H: 1msec/div.
13
IC18 - pin 39 (Y output)
V: 0.2V/div. H: 5msec/div.
14
IC18 - pin 6 (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.
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: 2V/div. H: 5msec/div.
18
IC26 - pin 7
(R output when select RGB)
V: 50mV/div. H: 10
µ
sec/div.
19
IC26 - pin 4
(G output when select RGB)
V: 50mV/div. H: 10
µ
sec/div.
20
IC26 - pin 1
(B output when select RGB)
V: 50mV/div. H: 10
µ
sec/div.
21
IC26 - pin 17
(V COMP output when select video)
V: 50mV/div. H: 10
µ
sec/div.
22
IC26 - pin 19
(Y output when select video)
V: 50mV/div. H: 10
µ
sec/div.
23
IC26 - pin 22
(C output when select video)
V: 50mV/div. H: 10
µ
sec/div.
WV and WY Types Only
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
