Pioneer CRT3557, Service Manual

Page: 28 / 58

DEH-P3800MP/XU/UC
28
1 2 3 4
1 2 3 4
C
D
F
A
B
E
-
Waveforms
Note : 1. The encircled numbers denote measuring points in the circuit diagram.
2. Reference voltage REFO1(1.65 V)
1
DSCSNS
2
8SNS
3
12SNS
5 V/div
5 V/div
5 V/div 500 ms/div
12 cm CD Loading operation
Ref.:
GND
Mode:
Normal
1
DSCSNS
2
8SNS
3
12SNS
5 V/div
5 V/div
5 V/div 500 ms/div
Ref.:
GND
Mode:
Normal
1
DSCSNS
4
CLCONT
5
VD
5 V/div
5 V/div
10 V/div 500 ms/div
12 cm CD Loading operation 8 cm CD Loading operation
Ref.:
GND
Mode:
Normal
9
FIN
0
RFOK
6
SIN
200 mV/div
2 V/div
2 V/div 500 ms/div
12 cm CD-DA Source On setup operation
Ref.:
REFO
Mode:
Normal
@
FE
9
FIN
!
TE
8
TIN
500 mV/div
500 mV/div
500 mV/div
500 mV/div 20 ms/div
Ref.:
REFO
Mode:
Normal
!
TE
@
FE
500 mV/div
500 mV/div 200 ms/div
Source On setup operation CD-DA Play operation
Ref.:
REFO
Mode:
Normal
@
FE
9
FIN
!
TE
8
TIN
500 mV/div
500 mV/div
500 mV/div
500 mV/div 20 ms/div
CD-ROM play operation(Regular track Jump)
Ref.:
REFO
Mode:
Normal
#
MDX
6
SIN
2 V/div
500 mV/div 5
µ
s/div
Ref.:
REFO
Mode:
Normal
#
MDX
6
SIN
2 V/div
200 mV/div 50 ms/div
Spindle waveform during play operation Spindle waveform during play operation
(Wider)
Ref.:
REFO
Mode:
Normal
6
SIN
7
CIN
8
TIN
1 V/div
500 mV/div
500 mV/div 1 s/div
12 cm CD-DA setup operation after loading 12 cm CD-ROM(3 sessions) setup operation
after loading
Ref.:
REFO
Mode:
Normal
6
SIN
7
CIN
8
TIN
1 V/div
500 mV/div
500 mV/div 1 s/div
Ref.:
REFO
Mode:
Normal
6
SIN
7
CIN
8
TIN
1 V/div
500 mV/div
500 mV/div 1 s/div
12 cm CD-ROM(1 session) setup operation
after loading
Ref.:
REFO
Mode:
Normal