Pioneer CDJ-2000 Service Manual page 33

5
[4-3] The SD card cannot be recognized.
Check the following, with an SD card inserted in the SD connector.
No. Cause Diagnostics Point
Loose connections
SDCB Assy,
1 in the communica-
MAIN Assy
tion line.
Defective MAIN
2 MAIN Assy
CPU
[5] LAN
[5-1] No LAN communication
Check the following, with a peripheral device connected to the Ethernet connector.
No. Cause Diagnostics Point
Loose connections
in the communica-
1 MAIN Assy
tion line.
Defective ETHER
2 PHY device or MAIN Assy
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
Improper RESET SRVA Assy,
1
signal MAIN Assy
Loose connections
SRVA Assy,
in the communica-
2
MAIN Assy
tion line.
Defective MAIN
3 MAIN Assy
CPU
[7] AUDIO OUT
[7-1] No sound
The analog audio signal is not output.
No. Cause Diagnostics Point
Power is not MAIN Assy,
1
supplied properly. JACB Assy
Defective MUTE
2 MAIN Assy
signal
Loose connections MAIN Assy,
3
in the signal line.
JACB Assy
Power is not
MAIN Assy,
supplied properly,
4
JACB Assy
or the DAC or
DSP is defective.
The digital audio signal is not output.
No. Cause Diagnostics Point
MAIN Assy,
Loose connections
1
in the signal line. JACB Assy
Defective
2 MAIN Assy
transistor
Defective MAIN
3 MAIN Assy
DSP
5
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 (IC1304).
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 (IC504).
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-2000
6
7
Corrective Action
If connection is improper, resolder it.
The MAIN CPU (IC101) is defective. Replace it.
Corrective Action
If connection is improper, resolder it.
The ETHER PHY device (IC1304) may be defective.
Replace it. If the symptom persists, the MAIN CPU
(IC101) may be defective. Replace it.
Corrective Action
Communication will not start while the ATA_RESET signal
is L. Check the connection between the MAIN CPU (IC101)
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
(IC101) 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 (IC101). If no
problem is found, the MAIN CPU may be defective.
Replace it.
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 (Q505) 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 DSP.
7
8
A
Reference
B
Reference
10.5 MAIN
ASSY (3/3)
C
Reference
10.1 SRVA
ASSY (1/2)
10.5 MAIN
ASSY (3/3)
D
Reference
10.4 MAIN
ASSY (2/3)
E
10.4 MAIN
ASSY (2/3)
Reference
10.4 MAIN
ASSY (2/3)
10.4 MAIN
ASSY (2/3)
F
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