Pioneer DV-414 Service Manual - Page 28

IC301-pin 19 RF for A/D converter

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DV-515, DV-414 • WAVEFORMS OF DVDM ASSY Note : The encircled numbers denote measuring point in the schematic diagram. Measurement condition : No. 1 to 4 and 6 to 11 : Disc MJK1, Title 1-chp 1 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 1 Q109-Emitter (RF) V: 100mV/div. H: 0.1µS/div. 7 Q281-Collector (FG) V: 1V/div. H: 5mS/div. DC 2V 2 TP (RFO) V: 500mV/div. H: 0.1µS/div. 8 Foot of R261 (FPWM) V: 1V/div. H: 10µS/div. 13 IC801-pin 39 (Y output) V: 500mV/div. H: 10µS/div. GND 14 IC801-pin 36 (C output) V: 500mV/div. H: 10µS/div. 3 IC301-pin 19 (RF for A/D converter) V: 1V/div. H: 0.2µS/div. 9 Foot of R262 (VPWM) V: 1V/div. H: 10µS/div. GND 15 IC801-pin 45 (CB output when selecting color difference output) V: 500mV/div. H: 10µS/div. 4 TP (Tracking Error) V: 1V/div. H: 2mS/div. 10 Foot of R263 (PPWM) V: 1V/div. H: 0.2µS/div. GND 16 IC801-pin 39 (Y output when selecting color difference output) V: 500mV/div. H: 10µS/div. 5 IC201-pin 39 (EFM before slice) V: 1V/div. H: 1µS/div. 11 Foot of R264 (RPWM) GND 17 IC801-pin 36 (CR output when selecting color difference output) V: 500mV/div. H: 10µS/div. 6 IC201-pin 1 (EFM) V: 1V/div. H: 0.2µS/div. DC1.4V 12 IC801-pin 45 (Composite video output) V: 500mV/div. H: 10µS/div. GND 28

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DV-515, DV-414
28
1
Q109-Emitter (RF)
V: 100mV/div.
H: 0.1
μ
S/div.
7
Q281-Collector (FG)
V: 1V/div.
H: 5mS/div.
13
IC801-pin 39 (Y output)
V: 500mV/div.
H: 10
μ
S/div.
2
TP (RFO)
V: 500mV/div.
H: 0.1
μ
S/div.
8
Foot of R261 (FPWM)
V: 1V/div.
H: 10
μ
S/div.
14
IC801-pin 36 (C output)
V: 500mV/div.
H: 10
μ
S/div.
3
IC301-pin 19 (RF for A/D converter)
V: 1V/div.
H: 0.2
μ
S/div.
9
Foot of R262 (VPWM)
V: 1V/div.
H: 10
μ
S/div.
15
IC801-pin 45 (C
B
output when
selecting color difference output)
V: 500mV/div.
H: 10
μ
S/div.
4
TP (Tracking Error)
V: 1V/div.
H: 2mS/div.
10
Foot of R263 (PPWM)
V: 1V/div.
H: 0.2
μ
S/div.
16
IC801-pin 39 (Y output when
selecting color difference output)
V: 500mV/div.
H: 10
μ
S/div.
5
IC201-pin 39 (EFM before slice)
V: 1V/div.
H: 1
μ
S/div.
11
Foot of R264 (RPWM)
17
IC801-pin 36 (C
R
output when
selecting color difference output)
V: 500mV/div.
H: 10
μ
S/div.
6
IC201-pin 1 (EFM)
V: 1V/div.
H: 0.2
μ
S/div.
12
IC801-pin 45 (Composite video output)
V: 500mV/div.
H: 10
μ
S/div.
DC 2V
DC1.4V
GND
GND
GND
GND
GND
• WAVEFORMS OF DVDM ASSY
Note : The encircled numbers denote measuring point in the schematic diagram.
Measurement condition : No. 1 to 4 and 6 to 11
: Disc MJK1, Title 1-chp 1
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