Pioneer CDJ-2000 Service Manual page 36

1
A
Only a DVD cannot be played back
No. Cause Diagnostics Point
1 LD current SRVA Assy
2 7/x6 signal error
3 RF signal error SRVA Assy
B
[10] EUP Mode
Shifting to EUP mode is not possible.
No. Cause Diagnostics Point
Defective
1 Related point
PANEL CPU
Disconnection,
breakage, or
C
2 SRVA Assy
loose connection
of cables
Defective SW
3
power supply
EUP mode cannot be exited.
No. Cause Diagnostics Point
Defective key or
Related point
loose connection
1
of the signal line
its periphery
Defective
2 Related point
PANEL CPU
D
Disconnection,
breakage, or
3 SRVA Assy
loose connection
of cables
Defective SW
4
power supply
E
F
36
1
2
Item to be Checked
Check that the LD current is within the
specified range.
Check that the 7/x6 signal is H during
-
DVD playback.
Check the RF signal (CN7001).
Item to be Checked
Check that the signal from Pin 29 of the
PANEL CPU (IC8003) changes from H to
L during mode shift.
Check that the signal from Pin 3 of the
CN7302 changes from L to H during mode
shift.
Item to be Checked
Check the connection of the nonresponding
and
key.
Check that the signal from Pin 29 of the
PANEL CPU (IC8003) changes from L to
H during mode shift.
Check that the signal from Pin 3 of the
CN7302 changes from H to L during mode
shift.
2
3
Corrective Action
If there is any error, replace the traverse mechanism.
Check the connections between IC7006 and CN7001.
If soldering is improper, resolder it.
Compare the waveform with the operational waveform
to check if its quality is low. Check if the disc is dirty or
scratched. Check the polarity of the 7/x6 signal. When it
is normal, Check the connections between pickup and
CN7001 and IC7002. If soldering is improper, resolder it.
If soldering is OK, replace the parts in the order of
(1) FEP (IC7002), (2) DRIVER IC (IC7001), (3) SODC
(IC7006), (4) SRVA Assy, then (5) traverse mechanism.
Corrective Action
The PANEL CPU (IC8003) may be defective. Check
the soldering of the PANEL CPU and its periphery.
If the soldering is OK, then replace it.
The signal line cable may be defective.
If it is loosely connected, securely connect it.
If it is broken, replace it.
The SW power-supply is defective. Replace it.
Corrective Action
Check the connection of the signal line for the
nonresponding key. If the connection is proper,
replace the connected SW.
The PANEL CPU (IC8003) may be defective. Check
the soldering of the PANEL CPU and its periphery.
If the soldering is OK, then replace it.
The signal line cable may be defective.
If it is loosely connected, securely connect it.
If it is broken, replace it.
The SW power-supply is defective. Replace it.
Reference: Signal logic during EUP mode
EUP_CONT
PANEL CPU(IC8003) pin29
CPU_EUP_CONT
CDJ-2000
3
4
Reference
5.2 Failure Judgment
of the Pickup ASSY
10.1 SRVA
ASSY (1/2)
10.1 SRVA
ASSY (1/2)
5.4 Operational
Waveforms
Reference
10.11
PNLB ASSY
10.2 SRVA(2/2),
SPCN, INSW and
SLMB ASSYS
Reference
10.11
PNLB ASSY
10.2 SRVA(2/2),
SPCN, INSW and
SLMB ASSYS
Normal mode EUP mode
L H or open
H L
X L
X : Not Concerned
4