Pioneer CDJ-2000, Service Manual

Page: 36 / 166

36
CDJ-2000
1 2 3 4
A
B
C
D
E
F
1 2 3 4
[10] EUP Mode
10.1 SR V A
ASSY (1/2)
5.4 Operational
Waveforms
10.1 SR V A
ASSY (1/2)
10.11
P
N LB ASSY
10.11
P
N LB ASSY
10.2 SR V A(2/2),
SPC N , I N SW and
SLMB ASSYS
10.2 SR V A(2/2),
SPC N , I N SW and
SLMB ASSYS
Only a D V D cannot be played back
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
1 LD current SR V A Assy
Check that the LD current is within the
specified range.
If there is any error, replace the traverse mechanism.
5.2 Failure Judgment
of the Pickup ASSY
2 7/x6 signal error -
Check that the 7/x6 signal is H during
D
V D playback.
Check the connections between IC7006 and C N 7001.
If soldering is improper, resolder it.
3 RF signal error SR V A Assy Check the RF signal (C N 7001).
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
C
N 7001 and IC7002. If soldering is improper, resolder it.
If soldering is OK, replace the parts in the order of
(1) FEP (IC7002), (2) DRI
V ER IC (IC7001), (3) SODC
(IC7006), (4) SR V A Assy, then (5) traverse mechanism.
Shifting to EUP mode is not possible.
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
1
Defective
PA
N EL CPU
Related point
The PA N EL CPU (IC8003) may be defective. Check
the soldering of the PA N EL CPU and its periphery.
If the soldering is OK, then replace it.
2
Disconnection,
breakage, or
loose connection
of cables
SR V A Assy
Check that the signal from Pin 3 of the
C
N 7302 changes from L to H during mode
shift.
The signal line cable may be defective.
If it is loosely connected, securely connect it.
If it is broken, replace it.
3
Defective SW
power supply
The SW power-supply is defective. Replace it.
EUP mode cannot be exited.
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
1
Defective key or
loose connection
of the signal line
Related point
and
its periphery
Check the connection of the nonresponding
key.
Check the connection of the signal line for the
nonresponding key. If the connection is proper,
replace the connected SW.
2
Defective
PA
N EL CPU
Related point
Check that the signal from Pin 29 of the
PA
N EL CPU (IC8003) changes from L to
H during mode shift.
Check that the signal from Pin 29 of the
PA
N EL CPU (IC8003) changes from H to
L during mode shift.
The PA N EL CPU (IC8003) may be defective. Check
the soldering of the PA N EL CPU and its periphery.
If the soldering is OK, then replace it.
3
Disconnection,
breakage, or
loose connection
of cables
SR V A Assy
Check that the signal from Pin 3 of the
C
N 7302 changes from H to L during mode
shift.
The signal line cable may be defective.
If it is loosely connected, securely connect it.
If it is broken, replace it.
4
Defective SW
power supply
The SW power-supply is defective. Replace it.
N ormal mode EUP mode
EUP_CO N T L H or open
PA N EL CPU(IC8003) pin29 H L
CPU_EUP_CO N T X L
Reference: Signal logic during EUP mode
X : N ot Concerned