GP3000 Series Hardware Manual
9-24
9.4.4 AGP-3750T
Preparation
Please have the following ready beforehand.
• Replacement backlight (Model: CA3-BLU15-01 (Set of two))
• One pair of clean (preferably new) cotton gloves.
• Phillips screwdriver (no.2)
About the Backlight
GP units use a CFL, long-life type backlight. In a real world situation, the backlight may need to be replaced
depending on the GP’s operating environment. It is recommended that it be replaced periodically.
A backlight life refer to “ Display Specifications (page 4-79)”, when the backlight is lit continuously (time
required for brightness to fall to half its normal level.)
Procedure for replacing the backlight
There are two backlight of AGP-3750T.
(1) Unplug the power cord from the main power supply.
[Electric shock]
• Whenever changing the backlight, be sure the GP’s power cord has been disconnected and that
the unit is cooled down.
• When the GP’s power cord is connected and the GP is ON, high voltage runs through the wires
in the backlight area do not touch them!
[Burn]
• When the GP’s power has just been turned OFF, the backlight area is still very hot! Be sure to
wear gloves to prevent being burned.
[Glass]
• The backlight is very fragile. Do not touch the glass tube directly or try to remove its power cord.
If the glass tube breaks you may be injured.
• Remove the GP unit from the equipment to which the unit has been incorporated,
and work with the GP unit with the display surface facing downward. Be sure to
perform the backlight changeover on a flat, level surface. This will prevent damage
to the GP unit and the accidental cutting of any of its power cord.
• Be sure to protect the display surface to prevent damage during the operations.
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