Proface APL3000B - Node Box PC - Manual (Page 147)

PS-3650A / PS-3651A User Manual
7-8
7.5 Replacing the Backlight
PS-A units use a CFL, long-life type backlight. The actual life of the backlight however, will vary depending
on the PS-A’s operating conditions. It is recommended that it be replaced periodically. A PS-A backlight has a
life of 50,000 hours (approx. 5.7 years, at 25°C and 24 hour operation), when the backlight is lit continuously
(time required for brightness to fall to half its normal level.)
„ Preparation
Please have the following ready beforehand.
• Replacement backlight (Model:CA5-BLU12XGA-01)
• One pair of clean (preferably new) cotton gloves.
• Phillips screwdriver (no.2)
• When the LED setting is specified with the RAS control in Control Panel and a backlight
burnout is detected, the status LED illuminates in orange.
• If the backlight or the display unit is damaged, the screen display will go out. Even if the screen
goes out, however, there is a possibility that the touch panel is still operating correctly.
Therefore, since any type of touch panel contact could have an unexpected or dangerous effect
or result, be sure not to touch the screen when this condition occurs.
• A backlight burnout is detected by monitoring the consumed current. Depending on the
condition of the backlight, a backlight burnout may not be detected or it may be detected before
the backlight burns out completely.
Whenever changing the backlight, be sure the PS-A’s power cord has been disconnected and that the unit
is cooled down.
High voltage runs through the wires in the backlight area. When the PS-A’s power cord is connected and
the PS-A is ON, do not touch the area!
When the PS-A’s power has just been turned OFF, the backlight area is still very hot! Do not touch the
backlight area until the area is cooled down. Be sure to wear gloves to prevent being burned.
The backlight is very fragile. Do not strongly push the glass tube or do not strongly pull it when replacing
the Backlight. If the glass tube breaks, you may be injured.