PIONEER DJ AlphaTheta CDJ-3000 Service Manual page 23

5
[6-4] It does not be recognized from the PC (LAN)
No. Cause Diagnostics Point
1 LAN circuit to MAIN Assy
MAIN CPU have
defect
2 MAIN CPU or MAIN Assy
LAN-HUB have
defect
[7] EUP
[7-1] It cannot switch to the EUP mode
No. Cause Diagnostics Point
1 AUTO STANDBY —
is OFF
2 PANEL CPU has PNLB Assy
defect
3 It has defective Connector connection
connectors and
so on
4 SW POWER SW POWER SUPPLY
SUPPLY has
defect
[7-2] It does not return from the EUP mode
No. Cause Diagnostics Point
1 Button and Switch PNLB Assy and
have defect the peripheral Assy
2 PANEL CPU has PNLB Assy
defect
3 It has defective Connector connection
connectors and
so on
4 SW POWER SW POWER SUPPLY
SUPPLY has
defect
[8] Power supply monitoring
[8-1] Power supply monitoring
No. Cause Diagnostics Point
1 Each power Each Assy
supply circuit
has defect
5
6
Item to be Confirmed
Confirm the below circuits.
1. From IC1801 (MAIN CPU) to
IC4001 (LAN-HUB)
2. From IC4001 (LAN-HUB) to
JA4001(LAN jack)
The problem has not improved until the above. If not confirmed, confirm IC1801 (MAIN CPU),
Item to be Confirmed
Confirm that AUTO STANDBY in UTILITY
setting is ON.
Confirm that pin 35 of IC7202 (PANEL CPU)
is L.
Confirm that pin 10 of CN2 on SW POWER
SUPPLY is H.
The problem has not improved until the above. Replace SW POWER SUPPLY.
Item to be Confirmed
Confirm that the buttons are working.
Confirm that pin 35 of IC7202 (PANEL CPU)
change H according to the signal input of
the switch.
Confirm that pin 10 of CN2 on SW POWER
SUPPLY is H.
The problem has not improved until the above. Replace SW POWER SUPPLY.
Item to be Confirmed
SOURCE indicator (Upper of TAG LIST,
PLAY LIST buttons) keeps blinking as the
power monitoring circuit detects a malfunction.
Refer to "5.4 VOLTAGE MONITORING
CIRCUIT" to confirm each circuit.
+ This state is kept until IC7202 (PANEL CPU)
is reset.
CDJ-3000
6
7
Corrective Action
Repair defective solder and defective connections
if found.
IC4001 (LAN-HUB) and the peripheral circuit of
these parts and repair the defective soldering if
found. If not confirmed, replace MAIN Assy.
Corrective Action
If the setting is turned OFF, the system will not
switch to EUP mode. Change the setting as
necessary.
If not confirmed, replace IC7202 (PANEL CPU).
If not confirmed, repair any poorly connected
connectors among SW POWER SUPPLY, MAIN
Assy and PNLB Assy if found.
Corrective Action
If not confirmed, confirm the status of that button
or switch. If no problem, replace the switch.
If not confirmed, replace IC7202 (PANEL CPU).
If not confirmed, repair any poorly connected
connectors among SW POWER SUPPLY, MAIN
Assy and PNLB Assy if found.
Corrective Action
Search for defective power circuits, repair the
defective soldering and replace parts if found.
If the parts that are difficult to replace are
defective, the relevant Assy must be replaced.
7
8
A
Reference
—
—
B
Reference
—
—
—
C
—
Reference
—
—
D
—
—
E
Reference
5.4 VOLTAGE
MONITORING
CIRCUIT
F
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