Pioneer DEH-P550MP, Service Manual

Page: 34 / 83

34
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Waveforms
Note : 1. The encircled numbers denote measuring points in the circuit diagram.
2. Reference voltage REFO1(1.65V)
1
DSCSNS
2
CLCONT
3
LOEJ
4
VD
5V/div
5V/div
5V/div
10V/div 500ms/div
When loading a 12cm CD
Ref.:
GND
Mode:
Normal
5
SIN
6
CIN
7
TIN
1V/div
500mV/div
500mV/div 2s/div
When setting up after loading a 12cm CD-DA
disc
5
SIN
6
CIN
7
TIN
When setting up after loading a 12cm CD-ROM
disc(1 session) When setting up after loading a 12cm CD-ROM
disc(3 session)
Ref.:
REFO
Mode:
Normal
1
DSCSNS
2
CLCONT
3
LOEJ
4
VD
5V/div
5V/div
5V/div
10V/div 500ms/div
When loading an 8cm CD
Ref.:
GND
Mode:
Normal
0
TE
!
FE
500mV/div
500mV/div 200ms/div
When setting up "Source On"
Ref.:
REFO
Mode:
Normal
!
FE
8
FIN
0
TE
7
TIN
500mV/div
500mV/div
500mV/div
500mV/div 20ms/div
Ref.:
REFO
Mode:
Normal
!
FE
8
FIN
0
TE
7
TIN
500mV/div
500mV/div
500mV/div
500mV/div 20ms/div
During "Play"(CD-DA)
During "Play"(CD-ROM)(Track Jump is generated
periodically)(Refer to Track Jump waveform)
Ref.:
REFO
Mode:
Normal
@
MDX
5
SIN
500mV/div
200mV/div 50ms/div
Spindle waveform during "Play"
Ref.:
REFO
Mode:
Normal
#
RFAGC 500mV/div 5
µ
s/div
Ref.:
REFO
Mode:
Normal
@
MDX
5
SIN
500mV/div
1V/div 5
µ
s/div
Spindle waveform during "Play"(Magnified) RF eye pattern
Ref.:
REFO
Mode:
Normal
1V/div
500mV/div
500mV/div 2s/div
5
SIN
6
CIN
7
TIN
1V/div
500mV/div
500mV/div 2s/div
When setting up "Source On"(12cm CD-DA)
Ref.:
REFO
Mode:
Normal
8
FIN
9
RFOK
5
SIN
200mV/div
2V/div
2V/div 500ms/div
Ref.:
REFO
Mode:
Normal
Ref.:
REFO
Mode:
Normal
1
2 3 4
1 2 3 4
F
E
D
C
B
A
DEH-P550MP/XN/UC