Pioneer DV-47Ai, Service Manual

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DV-47Ai
76
1 2 3 4
1 2 3 4
C
D
F
A
B
E
2
Q106-emitter (RFO)
V: 500mV/div. H: 0.1
µ
sec/div.
4
IC101-pin 42 (Tracking Error)
(AI-Inner Tracking Off)
V: 500mV/div. H: 2msec/div.
8
Foot of R261 (FPWM)
V: 1V/div. H: 10
µ
sec/div.
9
Foot of R262 (VPWM)
V: 1V/div. H: 10
µ
sec/div.
10
Foot of R263 (PPWM)
V: 1V/div. H: 0.2msec/div.
11
Foot of R264 (RPWM)
V: 1V/div. H: 5msec/div.
12
Foot of R964 (V)
V: 0.2V/div. H: 10
µ
sec/div.
13
Foot of R963 (C)
V: 0.2V/div. H: 10
µ
sec/div.
14
Foot of R960 (Y)
V: 0.2V/div. H: 10
µ
sec/div.
19
Foot of R958 (Pb)
V: 0.2V/div. H: 10
µ
sec/div.
20
Foot of R957 (Pr)
V: 0.2V/div. H: 10
µ
sec/div.
15
Foot of R959 (Y)
V: 0.2V/div. H: 10
µ
sec/div.
16
Foot of R958 (Pb)
V: 0.2V/div. H: 10
µ
sec/div.
17
Foot of R957 (Pr)
V: 0.2V/div. H: 10
µ
sec/div.
18
Foot of R959 (Y)
V: 0.2V/div. H: 10
µ
sec/div.
GND
AC mode
GND
AC mode
DVDM ASSY
B
Note : The encircled numbers denote measuring point in the schematic diagram.
Measurement condition : No. 2, 4 and 8 to 11 : MJK1, Title 1-chp 1 No. 12 to 14 : DVD-REF-A1, T2-Chap.1
No. 15 to 20 : DVD-REF-A1, T2-Chap.19
WAVEFORMS
GND
GND
GND
GND