Pioneer CDJ-2000NXS Service Manual page 23

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[4-3] The SD card cannot be recognized.
Check the following, with an SD card inserted in the SD connector.
No. Cause Diagnostics Point
1 Loose connections SDCB Assy,
in the communi-
MAIN Assy
cation line.
2 Defective MAIN Assy
MAIN CPU
[5] LAN
[5-1] No LAN communication
Check the following, with a peripheral device connected to the Ethernet connector.
No. Cause Diagnostics Point
1 Loose connections MAIN Assy
in the communi-
cation line.
2 Defective MAIN Assy
ETHER PHY device
LAN jack
or
MAIN CPU
[6] ATAPI DRIVE
[6-1] No disc playback (Although loading and disc rotation can be performed properly, no track data are output.)
No. Cause Diagnostics Point
1 Improper SRVB Assy,
RESET signal MAIN Assy
2 Loose connections SRVB Assy,
in the communi-
MAIN Assy
cation line.
3 Defective MAIN Assy
MAIN CPU
[7] AUDIO OUT
[7-1] No sound
The analog audio signal is not output.
No. Cause Diagnostics Point
1 Power is not MAIN Assy,
supplied properly. JACB Assy
2 Defective MAIN Assy
MUTE signal
3 Loose connections MAIN Assy,
in the signal line. JACB Assy
4 Power is not MAIN Assy,
supplied properly, JACB Assy
or the DAC or
DSP is defective.
The digital audio signal is not output.
No. Cause Diagnostics Point
1 Loose connections MAIN Assy,
in the signal line. JACB Assy
2 Defective MAIN Assy
transistor
3 Defective MAIN Assy
MAIN DSP
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6
Item to be Checked
Check the connection of the SD serial
communication line.
If the symptom persists after the above
corrections.
Item to be Checked
Check the connection of the periphery
circuit of ETHER (IC704).
If the symptom persists after the above
corrections.
Item to be Checked
Check the ATA_RESET signal (CN7005).
Check the connection of the ATAPI lines.
Check the periphery circuit of the MAIN
CPU.
Item to be Checked
Check the power voltages (V+12A, V-12A,
V+5_DAC) for audio.
Check the signal from Pin 9 of CN501
(MUTE). Playback is muted when the si
gnal is at +12 V.
Check the connection of the audio signal
lines (ROUT, LOUT).
Check the voltages (V+5, V+5_DAC) of
the DAC (IC505).
Item to be Checked
Check the digital audio signal (SPDIF)
and its connection.
Check the digital audio signal
(SPDIF_OUT) and its connection.
If the symptom persists after the above
corrections.
CDJ-2000NXS
6
7
Corrective Action
If connection is improper, resolder it.
The MAIN CPU (IC10) is defective.
Replace the MIAN Assy.
Corrective Action
If connection is improper, resolder it.
The ETHER PHY device (IC704) or LAN jack
(JA702) may be defective.
Replace it. If the symptom persists, the MAIN
CPU (IC10) may be defective.
Replace the MAIN Assy.
Corrective Action
Communication will not start while the ATA_RESET signal
is L. Check the connection between the MAIN CPU (IC10)
and SODC (IC7006). If the connection is not properly made,
correct it. If no problem is found, see "[9] DRIVE ASSY."
If the signal does not become H after those corrections, go
to Step 2.
Check the connection between the MAIN CPU
(IC10) and SODC (IC7006). If no problem is
found, see "[9] DRIVE ASSY." If the symptom
persists after those corrections, go to Step 3.
Check the periphery of the MAIN CPU (IC10).
If no problem is found, the MAIN CPU may be
defective. Replace the MAIN Assy.
Corrective Action
Each power-supply may be loosely connected or
may be defective. Correct loose connection.
If the symptom persists, replace the defective part.
The connection, transistor, or DSP may be
defective. Correct loose connection. If the
symptom persists, replace the defective part.
If connection is improper, resolder it.
If connection is proper, go to 4.
Each power-supply may be loosely connected or
may be defective. Correct loose connection.
If the symptom persists, replace the defective part.
Corrective Action
If connection is improper, resolder it. If the SPDIF
signal cannot be recognized, go to Step 3.
If the SPDIF_OUT signal can be recognized, then the
transistor (Q504) may be defective. Check the connection.
If no problem is found, replace the transistor. If the
SPDIF_OUT signal cannot be recognized, check the
connection. If soldering is improper, resolder it.
Replace the MAIN Assy.
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