Pioneer XV-HTD50 Service Manual page 50

1
QQ
3 7 63 1515 0
F
DVDM ASSY
A
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
Foot of R169 (RF)
1
V: 100mV/div. H: 0.2µsec/div.
B
TP2 (RFO)
2
V: 500mV/div. H: 0.1µsec/div.
TP3 (Tracking Error)
4
C
(AI-Inner Tracking Off)
V: 500mV/div. H: 2msec/div.
TE
L 13942296513
IC2 - pin 39 (EFM before slice)
5
V: 1V/div. H: 1µsec/div.
D
IC2 - pin 1 (EFM)
6
V: 1V/div. H: 0.2µsec/div.
E
IC3 - pin 41 (REGB)
7
V: 1V/div. H: 5msec/div.
www
F
50
1
http://www.xiaoyu163.com
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
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.
Foot of R264 (RPWM)
11
V: 1V/div. H: 5msec/div.
GND
IC18 - pin 45
12
(Composite Video output)
V: 0.2V/div. H: 1msec/div.
GND
IC18 - pin 39 (Y output)
13
V: 0.2V/div. H: 5msec/div.
GND
x ao
. i
2
http://www.xiaoyu163.com
3
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.
GND
CN55 - pin 5 (DISC SENS)
18
V: 2V/div. H: 1sec/div.
CN55 - pin 2 (TRAY POS)
19
V: 2V/div. H: 1sec/div.
Q Q
3 6 7
GND
18
19
GND
CN55 - pin 4 (SED0)
20
V: 2V/div. H: 5sec/div.
CLOSE
GND
Tray Close
u163
y
GND
XV-HTD50
3
4
2 9 9 4
8
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: 0.2V/div. H: 5msec/div.
GND
1 3 1 5 0 5 8 2 9
OPEN DISC CHANGE
m
co
.
4
2 8
9 9
GND
9 4 2 8 9 9
GND