5.2
Maintenance
The Data Access Units do not contain any consumable parts which are considered to
have a short life.
However, the battery, LCD display and the back light do have a limited life and will need
replacing.
5.2.1
General Maintenance
-
Check for high temperatures.
-
Check for conductive debris.
-
Check for loosening of terminals or mounting brackets (due to vibration).
5.2.2
Display and Back Light
The LCD life is about 50,000 hours and the back light life is about 10,000 hours operation.
•
User replacement is not possible. Please refer to your nearest Mitsubishi service
centre.
•
For this reason it is recommended that a back light saving technique is used to extend
the operational life time of the back light.
5.2.3
Battery Replacement
The battery life is about 5 years.
-
Switch OFF the power to the DU and open the
User Access panel at the back of the unit.
-
Remove the battery (A) from the holder (B) and
disconnect at (C).
-
Connect (C) the new battery and re-fit into the
holder (B).
-
Close the cover and restore the power.
•
The new battery should be connected within 30
second of removing the old one to retain all the
backed up data currently in memory.
5.2.4
Installing the EPROM
-
Switch OFF the power to the DU and open the
User Access panel at the back of the unit.
-
Insert the EPROM into the socket (A) taking care
that it is the correct way around and that you do
not to bend the legs.
-
Close the door and switch on.
•
Data held on EPROM is automatically transferred
to the flash memory of the FX-50DU-TK(S)-C at
power on.
(A)
(B)
(C)
Figure: 5.1
Battery Socket
(A)
Figure: 5.2
EPROM Socket
Graphic FX-50DU-TK(S)-C Units
Diagnostics 5
5 – 4
