Duplo DP-S Series, Service Manual

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173
z
Troubleshooting Guide
chap.6
(1) Lamp does not Light Up
Cause/Detective section Procedures Result Countermeasure Items to be checked
24V power supply 1
Measure the voltage between CN2-1(+24)
and CN2-5(GND) of the 24V power with
the tester. Is the v24V?
NO
Drive PCB Unit 2
Measure the drive PCB unit CN5-1 (+)
and CN5-2(GND) with the tester.
Is it +24V?
NO Replace the drive PCB Unit.
3
Does the lamp light up when the drive
PCB unit CN6-6 produces a short circuit
to GND?
YES Follow the procedure
5
.
Drive PCB Unit
4
Does replacing the drive PCB unit solve
the problem?
YES Finish
Main PCB Unit NO Replace the main PCB Unit.
Lamp
5
Does replacing the lamp solve the
problem?
YES Finish
Inverter PCB Unit NO Replace the inverter PCB Unit.
Motors 6
Remove the drive PCB Unit CN5 and
follow the procedure
1
.
Is the v24V? (CN1 is inserted)
YES
At the CN5 bundled wire or motors
+24V produces a short-circuit to GND.
Follow the procedure
2
. YES
Measure the voltage between L and N
of the 24V power with the tester. If it is
AC100V, replace the 24V power supply.
(2) Optical system dose not move forward/backward
Cause/Detective section Procedures Result Countermeasure Items to be checked
Wire or timing belt is cut
or removed.
1
Are the optical system driving wire and
timing belt attached properly?
NO Attach the wire and timing belt properly.
There is a foreign object
on the optical system
moving way.
2
Is the rail clean?Does the optical sys-
tem move smoothly when the optical
system driving timing pulley is rotated
manually?
NO
Check that there is no foreign object on
the rail and that nothing contacts the
optical system.
Motors 5
Remove the drive PCB Unit CN5 and
follow the procedure
3
. Is the voltage
+24V?
YES
At the CN5 bundled wire or motors
+24V produces a short-circuit to GND.
24V power supply
3
Measure the voltage between CN2-1(+24)
and CN2-5(GND) of the 24V power with
the tester. Is the v24V?
NO
Follow the procedure
4
. YES
Drive PCB Unit
4
YES Finish.
Main PCB Unit NO Replace the main PCB Unit.
Measure the voltage between L and N
of the 24V power with the tester. If it is
AC100V, replace the 24V power supply.
Does replacing the drive PCB unit solve
the problem?