27
CDJ-2000NXS
5
6
7
8
5
6
7
8
A
B
C
D
E
F
1
Short-circuit pad Traverse mecha
Check if the LD short-circuit pad is
short-circuited.
If it is, open it.
—————
1
Missing or
defective part
Loading mecha
Check that there is no part missing or
defective.
If there is, install the missing part or replace the
defective part.
—————
2
Power supply
error
SR
V
B Assy
Check the power voltages (12
V
, 5
V
,
3.3
V
, 1.5
V
,
V
REF1,
V
REF2 and
V
HALF).
Check the connection of the parts at the periphery of
the power-supply IC that does not output the voltage.
If the symptom persists after a corrective action, the
power supply block is defective. Replace it.
—————
3
Power supply
error
SR
V
B Assy
Check the power voltages (12
V
, 5
V
,
3.3
V
, 1.5
V
,
V
REF1,
V
REF2 and
V
HALF).
Check the connection of the parts at the periphery of
the power-supply IC that does not output the voltage.
If the symptom persists after a corrective action, the
power supply block is defective. Replace it.
—————
3
MU1 signal error SR
V
B Assy
Check that the MU1 signal becomes H
after loading is completed.
DRI
V
ER IC (IC7001) and SODC (IC7006) may
be improperly soldered or defective.
Resolder them, if necessary. If the symptom
persists, replace SODC (IC7006).
—————
4
MU1 signal error SR
V
B Assy
Check that the MU1 signal becomes H
after loading is completed.
DRI
V
ER IC (IC7001) and SODC (IC7006) may
be improperly soldered or defective.
Resolder them, if necessary. If the symptom
persists, replace SODC (IC7006).
—————
4
SPDLEC signal
error
SR
V
B Assy
Check that the SPDLEC signal is a PWM
signal with 1.65
V
at the center.
DRI
V
ER IC (IC7001) and SODC (IC7006) may
be improperly soldered or defective.
Resolder them, if necessary. If the symptom
persists, replace SODC (IC7006).
5.4 OPERATIO
N
AL
WA
V
EFORMS
4 9
5
SPDLEC signal
error
SR
V
B Assy
Check the SPDLFG signal.
SPDLFG signal may be improperly solded and
SODC (IC7006) may be defective.
Resolder them, if necessary. If the symptom
persists, replace SODC (IC7006). If the symptom
persists, replace DRI
V
ER IC (IC7001).
5.4 OPERATIO
N
AL
WA
V
EFORMS
4 9
6
FEDR
V
signal
error
SR
V
B Assy
Check that the FEDR
V
signal fluctuates
with 1.65
V
at the center.
FEDR
V
signal may be improperly solded and
SODC (IC7006) may be defective.
Resolder them, if necessary. If the symptom
persists, replace SODC (IC7006). If the symptom
persists, replace FEP (IC7002).
5.4 OPERATIO
N
AL
WA
V
EFORMS
3 4 9
7
FE signal error
SR
V
B Assy
Check that an S-shaped signal is output
when a waveform of the FE (FEDR
V
)
signal is rising after it drops down from
1.65
V
.
FE signal may be improperly solded and SODC
(IC7006) may be defective.
Resolder them, if necessary. If the symptom
persists, replace SODC (IC7006). If the symptom
persists, replace FEP (IC7002).
5.4 OPERATIO
N
AL
WA
V
EFORMS
3 4 5 9
5
SPI
N
1 signal
error
SR
V
B Assy
Check that the SPI
N
1 signal to Pin 29 of IC7002
is 3.3
V
when disc rotation is at full speed.
If the signal is not input, check the soldering.
If the soldering is improper, resolder it.
5.4 OPERATIO
N
AL
WA
V
EFORMS
4
6
—————
—————
If the symptom persists after the above
corrections.
Replace the parts in the order of
(1) DRI
V
ER IC (IC7001), (2) SODC (IC7006),
(3) SR
V
B Assy, then (4) traverse mecha.
—————
8
—————
—————
If the symptom persists after the above
corrections.
Replace the parts in the order of
(1) FEP (IC7002), (2) SODC (IC7006),
(3) DRI
V
ER IC (IC7001), (4) SR
V
B Assy,
then (5) traverse mecha.
—————
[11] SERVICE MODE
[11-1] The drive does not work during Test Operation mode.
The LD does not emit light.
1
Short-circuit pad Traverse mecha
Check if the LD short-circuit pad is
short-circuited.
If it is, open it.
—————
In-focus not possible
The spindle motor does not rotate.
2
LD current
SR
V
B Assy
Check that the LD current is within the
specified range.
If there is any error, replace the traverse mecha.
5.2 Failure Judgment
of the Pickup Assy
2
LD current
SR
V
B Assy
Check that the LD current is within the
specified range.
If there is any error, replace the traverse mecha.
5.2 Failure Judgment
of the Pickup Assy
No.
Cause
Diagnostics Point
Item to be Checked
Corrective Action
Reference
No.
Cause
Diagnostics Point
Item to be Checked
Corrective Action
Reference
No.
Cause
Diagnostics Point
Item to be Checked
Corrective Action
Reference