Pioneer DV-636D Service Manual page 36

DV-636D
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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
No. 12 to 14
No. 15 to 17
No. 18 to 20
DVDM ASSY
Foot of R169 (RF)
1
V: 100mV/div. H: 0.2µsec/div.
GND
CN201 - pin 5, 6 (RFO)
2
V: 500mV/div. H: 0.1µsec/div.
GND
IC701 - pin 170 (MY CHIP input)
3
V: 1V/div. H: 0.2µsec/div.
TE
L 13942296513
GND
CN201 - pin 9, 10 (Tracking Error)
4
(AI-Inner Tracking Off)
V: 500mV/div. H: 2msec/div.
IC201 - pin 39 (EFM before slice)
5
V: 1V/div. H: 1µsec/div.
GND
IC201 - pin 1 (EFM)
6
V: 1V/div. H: 0.2µsec/div.
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GND
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http://www.xiaoyu163.com
: CD, ABEX-784 Track 1
: MJK1, Title 1-chp 4 or T2-1
: MJK1, Title 1-chp 5 or T2-19
: T2-19, Color-bar (WYXJ and WVXJ Types only)
Q281 - Collector (FG)
7
V: 1V/div. H: 5msec/div.
GND
Foot of R261 (FPWM)
8
V: 1V/div. H: 5msec/div.
GND
Foot of R262 (VPWM)
9
V: 1V/div. H: 5msec/div.
GND
Foot of R263 (PPWM)
10
V: 1V/div. H: 5msec/div.
GND
Foot of R264 (RPWM)
11
V: 1V/div. H: 5msec/div.
GND
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2 9
8
IC806 - pin 1
12
(Composite Video output)
V: 0.2V/div. H: 10µsec/div.
IC806 - pin 4 (Y output)
13
V: 0.2V/div. H: 10µsec/div.
IC806 - pin 7 (C output )
14
V: 0.2V/div. H: 10µsec/div.
Q Q
3 6 7 1 3 1 5
IC806 - pin 1 (C output when
15 B
selecting color difference output)
V: 0.2V/div. H: 10µsec/div.
IC806 - pin 4 (Y output when
16
selecting color difference output)
V: 0.2V/div. H: 10µsec/div.
IC806 - pin 7 (C output when
17
R
selecting color difference output)
V: 0.2V/div. H: 10µsec/div.
co
.
9 4 2 8
IC806 - pin 23
18
(R output when select RGB)
V: 0.5V/div. H: 10µsec/div.
IC806 - pin 20
19
(G output when select RGB)
V: 0.5V/div. H: 10µsec/div.
IC806 - pin 17
20
(B output when select RGB)
V: 0.5V/div. H: 10µsec/div.
0 5 8 2 9 9 4 2 8
m
9 9
9 9