Voltages And Waveforms; Signal Logic - Pioneer PDR-609 Service Manual

1
PDR-609

VOLTAGES and WAVEFORMS

Signal Logic

A
• Spindle System
A 4/5
CD-R CORE PCB ASSY
Media Pickup Position
Inner
CD
Outer
12cm Inner
CD-R
12cm Outer
CD-RW
8cm CD-R
STOP
* Inner: Absolute time is less than 23 minutes.
Outer: Absolute time is more than 23 minutes.
A 1/5
CD-R CORE PCB ASSY
B
Operating
Mode (IC301-pin 30)
STOP
CAV, W-CLV
E-CLV
* W-CLV: WOBBLECLV , E-CLV: EFMCLV
• Digital Input System
A 4/5
CD-R CORE PCB ASSY
at FS = 44.1 kHz
XVCO
(IC501-pin 101)
at DIGITAL LOCK
C
DIRERR
(IC501-pin 142)
• Audio System
A 4/5
CD-R CORE PCB ASSY
at Analog REC Pause,
REC, Monitor
ADCSTBY
(CN502-pin 4)
at MUTE ON
(Audio Signal Not Output)
AMUTE
(CN502-pin 9)
D
• Others
A 1/5
CD-R CORE PCB ASSY
XPFAIL
(CN302-pin 9)
26
1
2
SPDLG1 SPDLG3
(IC501-pin97) (IC501-pin99)
5V 0V
0V 5V
5V 0V
0V 5V
0V 5V
5V 5V
CLV ECLV
(IC301-pin 29)
0V 0V
5V 0V
5V 5V
Others
0V 5V
at DIGITAL UNLOCK
0V 5V
A/D Converter used
Others
5V 0V
at MUTE OFF
(Audio Signal Output)
5V 0V
5V
2
3
Note :
The encircled numbers denote measuring point in the schematic
diagram.
A 1/5
CD-R CORE PCB ASSY
CN302 - pin 1 (MSI)
1
V: 200mV/div. , H: 5msec/div.
CN302 - pin 2 (MSO)
2
V: 200mV/div. , H: 5msec/div.
CN302 - pin 5 (MSCK)
3
V: 200mV/div. , H: 500nsec/div.
(PLAY)
CN302 - pin 7 (SYSREQ)
4
V: 200mV/div. , H: 5msec/div.
CN302 - pin 8 (MACK)
5
V: 200mV/div. , H: 5msec/div.
3
4
IC301 - pin 21 (CLOCKDEC)
6
V: 200mV/div. , H: 5msec/div.
IC301 - pin 24 (XLATDEC)
7
V: 200mV/div. , H: 5msec/div.
IC301 - pin 25 (CLOCKRF)
8
V: 200mV/div. H: 5msec/div.
IC301 - pin 26 (DATA)
9
V: 200mV/div. , H: 5msec/div.
IC301 - pin 27 (XLATRF)
10
V: 200mV/div. , H: 5msec/div.
4