Pioneer XV-DV55 Servise Manual page 40

1
XV-DV55
QQ
3 7 63 1515 0
WAVEFORMS (DVDM ASSY)
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
A
Foot of R169 (RF)
1
V: 100mV/div. H: 0.2µsec/div.
TP2 (RFO)
2
V: 500mV/div. H: 0.1µsec/div.
B
3
TE
L 13942296513
TP3 (Tracking Error)
4
(AI-Inner Tracking Off)
V: 500mV/div. H: 2msec/div.
C
IC2 - pin 39 (EFM before slice)
5
V: 1V/div. H: 1µsec/div.
IC2 - pin 1 (EFM)
6
V: 1V/div. H: 0.2µsec/div.
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D
40
1
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2
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
IC3 - pin 41 (REGB)
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.
Foot of R263 (PPWM)
10
V: 1V/div. H: 5msec/div.
Foot of R264 (RPWM)
11
V: 1V/div. H: 5msec/div.
GND
IC18 - pin 45
12
(Composite Video output)
V: 2V/div. H: 1msec/div.
x ao
y
. i
GND
2
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3
8
IC18 - pin 39 (Y output)
13
V: 0.2V/div. H: 5msec/div.
GND
IC18 - pin 36 (C output)
14
V: 0.2V/div. H: 5msec/div.
GND
IC18 - pin 45 (C output when
15 B
selecting color difference output)
V: 0.2V/div. H: 5msec/div.
Q Q
3 6 7 1 3
GND
IC18 - pin 39 (Y output when
16
selecting color difference output)
V: 0.2V/div. H: 5msec/div.
GND
IC18 - pin 36 (C output when
17 R
selecting color difference output)
V: 2V/div. H: 5msec/div.
GND
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GND
3
4
2 9 9 4 2 8
GND
GND
1 5 0 5 8 2 9 9 4
GND
GND
m
co
4
9 9
2 8 9 9