Drive Assy - Pioneer CDJ-2000NXS Service Manual

1
[8] CONTROL
A
[8-1] Improper fader operation after fader start
No. Cause Diagnostics Point
1 Loose connections JACB Assy
in the signal line.
2 Defective MAIN Assy
MAIN CPU
B

[9] DRIVE ASSY

When it is thought abnormally, the drive section execute drive self-diagnose beforehand.
[9-1] Improper operation of the loading mechanism
No loading
No. Cause Diagnostics Point
1 Missing or Loading mecha
defective part
2 Loose connections Loading mecha
in the signal line.
3 Improper Loading mecha
C
assembling
4 Improper Loading mecha
soldering
5 Power supply SRVB Assy
error
6 LPS1 and LPS2 SRVB Assy
signal errors
7 MUTE1 and SRVB Assy
MUTE2 signal
errors
D
8 LOAD signal SRVB Assy
error
9 Defective SRVB —————
Assy
[9-2] The stepper does not work.
No. Cause Diagnostics Point
1 The main unit is Main unit
positioned inclined.
2 Improper assembling Traverse mecha
E
3 Improper assembling Traverse mecha
4 Power supply SRVB Assy
error
5 INSW signal SRVB Assy
error
6 MU1 signal error SRVB Assy
F
7 Improper assembling Cables
24
1
2
Item to be Checked
Check the waveforms of the control signals
(CONT1, CONT2) from the CN9401 on the
JACB Assy.
Check the waveforms of the control signals
(CONT01, CONT02) from the MAIN Assy.
Item to be Checked
Check that there is no part missing or
defective.
Check that the LP switch has been
mounted.
Check that the lever is engaged with the
LP switch.
Check that the wires from the loading
motor have been properly soldered.
Check the power voltages (12 V, 5 V,
3.3 V, and 1.5 V).
Check the waveforms of the LPS1 and LPS2
signal lines. (The LPS1 and LPS2 signals
becomes L when the SW is set to ON.)
Check the waveforms of the MUTE1 and
MUTE2 signals. (During loading, the
MUTE1 signal is L and the MUTE2 signal
is H.)
Check the LOAD signal.
If the symptom persists after the above
corrections.
Item to be Checked
Check if the main unit is positioned inclined. Place it on a level surface.
Check if there is a missing or defective part at the
section where the main axis and stepper contact.
Check the inside switch.
Check the power voltages (12 V, 5 V,
3.3 V, 1.5 V, VREF1, VREF2 and VHALF).
Check the INSW signal. (The INSW
becomes L when the INSW is set to ON.)
Check that the MU1 signal becomes H
after loading is completed.
Check that the FPC cable that connects the
traverse mecha and the SRVB Assy is
securely connected.
CDJ-2000NXS
2
3
Corrective Action
If the signal cannot be recognized, the JACB Assy
may be defective. Check the soldering at the JACB
Assy then resolder it, if necessary.
If the signal can be recognized, go to Step 2.
If the input signal can be recognized, then the MAIN CPU
(IC10) may be defective. Replace the MAIN Assy. If the
input signal cannot be recognized, the communication
line or the peripheral devices may be loosely connected.
Resolder the terminals.
Corrective Action
If there is, install the missing part or replace the
defective part.
If soldering is improper, resolder it.
Engage the lever with the LP switch.
If they are not soldered, solder them.
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.
The loading detection SWs (S8901 and S8902) may
be improperly soldered or defective. Resolder them,
if necessary. If the symptom persists, replace them.
DRIVER IC (IC7001) and SODC (IC7006) may
be improperly soldered or defective.
Resolder them, if necessary. If the symptom
persists, replace SODC (IC7006).
DRIVER IC (IC7001) and SODC (IC7006) may
be improperly soldered or defective.
Resolder them, if necessary. If the symptom
persists, replace SODC (IC7006).
Replace the SRVB Assy.
Corrective Action
If there is, install the missing part or replace the
defective part.
Assemble the INSW Assy properly.
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.
The FFC cables that connect the traverse mechanism,
SPCN, and SRVB are loosely connected, or the INSW
is defective. Reconnect them securely.
If the symptom persists, replace the INSW.
DRIVER IC (IC7001) and SODC (IC7006) may
be improperly soldered or defective.
Resolder them, if necessary. If the symptom
persists, replace SODC (IC7006).
If it does not, securely connect it. If it is broken,
replace the traverse mecha.
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Reference
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Reference
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5.4 OPERATIONAL
WAVEFORMS
2
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5.4 OPERATIONAL
WAVEFORMS
2
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Reference
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