Pioneer DV-47A Service Manual page 46

DV-47A, DV-S733A, DV-747A
QQ
3 7 63 1515 0
WAVEFORMS
Note : The encircled numbers denote measuring point in the schematic diagram.
B
DVDM ASSY
Measurement condition : No. 1 to 4 and 6 to 11 : MJK1, Title 1-chp 1
No. 5
Foot of R104 (RF)
1
V: 100mV/div. H: 0.2µsec/div.
GND
Q106-emitter (RFO)
2
V: 500mV/div. H: 0.1µsec/div.
GND
3
TE
L 13942296513
IC101-pin 35 (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.
www
.
GND
46
http://www.xiaoyu163.com
: CD, ABEX-784 Track 1
IC251 - pin 24 (FG)
7
V: 1V/div. H: 5msec/div.
Foot of R261 (FPWM)
8
V: 1V/div. H: 5msec/div.
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.
x ao u163
y
i
http://www.xiaoyu163.com
2 9
8
C
AVJB ASSY
Measurement condition : No. 1 to 3
No. 4 to 6
IC601 - pin 44
1
(Composite Video output)
V: 0.2V/div. H: 10µsec/div.
IC601 - pin 43 (Y output)
2
V: 0.2V/div. H: 10µsec/div.
IC601 - pin 42 (C output)
3
V: 0.2V/div. H: 10µsec/div.
Q Q
3 6 7 1 3 1 5
IC601 - pin 37 (R output)
4
V: 0.2V/div. H: 20µsec/div.
IC601 - pin 39 (G output)
5
V: 0.2V/div. H: 20µsec/div.
IC601 - pin 38 (B output)
6
V: 0.2V/div. H: 20µsec/div.
co
.
9 4 2 8
: MJK1, Title 1-chp 4
: T2-19, Color-bar
0 5 8 2 9 9 4 2 8
m
9 9
9 9