Pioneer CDJ-2000NXS2 Service Manual page 24

1
A
No. Cause Diagnostics Point
8 RF signal error SRVB Assy
9 ————— —————
B
Only a CD cannot be played back
No. Cause Diagnostics Point
1 LD current SRVB Assy
2 7/x6 signal error —————
3 E,F signal error SRVB Assy
C
4 RF signal error SRVB Assy
Only a DVD cannot be played back
No. Cause Diagnostics Point
1 LD current SRVB Assy
D
2 7/x6 signal error —————
3 RF signal error SRVB Assy
[9] EUP Mode
E
Shifting to EUP mode is not possible.
No. Cause Diagnostics Point
1 The AUTO —————
STANDBY setting is
set to OFF.
2 Defective PNLB Assy
PANEL CPU
3 Disconnection, SW POWER
breakage, or SUPPLY Assy
loose connection
of cables
F
4 Defective SW —————
POWER SUPPLY
Assy
24
1
2
Item to be Checked
Check the RF signal (CN7001).
If the symptom persists after the above
corrections.
Item to be Checked
Check that the LD current is within the
specified range.
Check that the 7/x6 signal is H during
CD playback.
Check the E, F signals (CN7001).
Check the RF signal (CN7001).
Item to be Checked
Check that the LD current is within the
specified range.
Check that the 7/x6 signal is L during
DVD playback.
Check the RF signal (CN7001).
Item to be Checked
Check that the AUTO STANDBY setting in
the UTILITY settings is set to ON.
Check that the signal from pin 18 of the
PANEL CPU (IC8001) changes from H to
L during mode shift.
Check the standby signal
(CN2 pin 10) changes from L to H
during mode shift.
—————
CDJ-2000NXS2
2
3
Corrective Action
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 FEP (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) SRVB Assy, then
(5) traverse mecha.
Replace the parts in the order of
(1) DRIVER IC (IC7001), (2) FEP (IC7002),
(3) SODC (IC7006), (4) SRVB Assy, then
(5) traverse mecha.
Corrective Action
If there is any error, replace the traverse mecha. 5.2 FAILURE
Check the connections between SODC (IC7006)
and CN7001. If soldering is improper, resolder it.
Check that the signals fluctuate with 2.2 V at the center.
If a DC signal is not output, check the VREF1. If a DC
signal is not output from it, replace the FEP (IC7002).
If an AC signal is not output, check the soldering at the
CN7001–IC7002 of the pickup. 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) SRVB Assy, then (5) traverse
mecha.
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) SRVB Assy, then (5) traverse mecha.
Corrective Action
If there is any error, replace the traverse mecha.
Check the connections between SODC (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) SRVB Assy, then (5) traverse mecha.
Corrective Action
Shifting to EUP mode is not possible when the
setting is OFF. Change the setting, as required.
The PANEL CPU (IC8001) may be defective.
Check the soldering of the PANEL CPU (IC8001)
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.
When there is not a problem with Step 3, the
SW POWER SUPPLY Assy is defective.
Replace it.
3
4
Reference
5.4 OPERATIONAL
WAVEFORMS
1
—————
Reference
JUDGEMENT OF THE
PICKUP ASSY
—————
—————
5.4 OPERATIONAL
WAVEFORMS
1
Reference
5.2 FAILURE
JUDGEMENT OF THE
PICKUP ASSY
—————
5.4 OPERATIONAL
WAVEFORMS
1
Reference
—————
—————
—————
—————
4