IDEC High Performance Series - Manual (Page 1360)

3 HG1F
34-44 WindO/I-NV2 User’s Manual
3.9 Maintenance and Inspection
Maintain and inspect the HG1F periodically to ensure the best performance. Do not disassemble, repair, or modify the
HG1F during inspection.
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Replacing the Backlight
Follow the procedures below to replace the backlight.
1 Turn off the power to the HG1F, disconnect the cable, and remove the main unit from the panel.
2 Unlock the tabs (4) securing the rear case, and remove the rear case.
3 Remove the connector that is connected to the PWB.
4 Pull out the backlight while lifting the tab of the backlight holder.
5 Attach the new replacement backlight by following step 4 in reverse.
6 Connect the connector for the replacement backlight.
Display
Wipe any stain of the display using a soft cloth slightly dampened with neutral
detergent or alcoholic solvent. Do not use solvents such as thinner, ammonia, strong
acid, and strong alkaline.
Terminals, Connectors
Check the terminals and connectors to make sure of no loose screws, incomplete
insertion, or disconnected lines.
Mounting Clips
Make sure that all mounting clips and screws are tightened sufficiently. If the
mounting clips are loose, tighten the screw to the recommended tightening torque.
Backup Battery
The operating life of the internal battery is approximately four years. It is
recommended to replace the battery every four years even before the reminder
message for battery replacement is displayed.
WARNING
• Make sure to turn off the power to the HG1F before replacing the backlight; otherwise, product
breakdown, electric shock, or fire may occur.
• The backlight may be hot. Make sure to wear gloves when performing the replacement work.
connector
Tab of the backlight holder