Proface AGP3500 - 10.4 DIO HMI" - Manual (Page 233)

GP3000 Series Hardware Manual
9-24
9.4.4 GP-3700 Series
„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.
• Here is the procedure for replacing the backlight only for GP-3700 Series which is NOT marked
on GP Rev. 5.
[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.