Setup Sequence - Pioneer CDJ-2000 Service Manual

1

5.5 SETUP SEQUENCE

A
B
Media distinction with the aid of reflectivity, by alternately emitting light from the LDs on the CD and DVD sides.
With the LD corresponding to the loaded medium found as a result of media distinction, focus search is
performed to acquire S-shaped signal data.
C
Judged as a CD
LD OFF
Offset canceling for the 2nd time
CD_LD ON for the 2nd time
Focusing in
D
Media distinction with the aid
of a sync signal (only for CD)
Coarse adjustment of focus position
Tr Drive offset adjustment
TBAL adjustment
TEPP adjustment
E
OFTR slice level adjustment
Measurement of
eccentricity amount
T close
Focus position adjustment
F
Acquisition of addresses
42
1
2
Power ON
Initialization of the loading mechanism
Loading of a disc
Stepper moving to a
focusing position
Offset canceling
Turn ON the LD on the CD side
to check for the presence of a disc.
Spin-up (CAV 2000 rpm)
Focus gain adjustment
Tracking gain adjustment
TOC (control data)
reading
Searching for the 1st piece of
music (SPDL acceleration starts)
CDJ-2000
2
3
Without a disc, an unloading
process starts.
Judged as a DVD
LD OFF
Offset canceling for the 2nd time
DVD_LD ON for the 2nd time
Focusing in
Coarse adjustment of
focus position
Tr Drive offset adjustment
TBAL adjustment
TEPP adjustment
OFTR slice level adjustment
T close
Focus position adjustment
Acquisition of addresses
Focus gain adjustment
Tr open
3
4
Coarse adjustment of
focus position
Tr Drive offset adjustment
TBAL adjustment
TEPP adjustment
OFTR slice level adjustment
T close
Tracking gain adjustment
Focus gain adjustment
Control data reading
Searching for the top address
4