Dvdm Assy - Pioneer DVD-V7400 Service Manual

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: 0.2 sec/div.
GND
CN201 - pin 5, 6 (RFO)
2
V: 500mV/div. H: 0.1 sec/div.
GND
IC701 - pin 170 (MY CHIP input)
3
V: 1V/div. H: 0.2 sec/div.
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: 1 sec/div.
GND
IC201 - pin 1 (EFM)
6
V: 1V/div. H: 0.2 sec/div.
GND
: 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 (WY and WV 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
DVD-V7400, DVD-V7300D
21