Proface APL3000B - Node Box PC - Manual (Page 77)

PS-3650A/PS-3651A Series Hardware Manual
4-8
4.5 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 unit’s operating conditions. It is recommended that it be replaced periodically. The service life
(half brightness life) of the backlight when it is lit continuously at room temperature is as described below.
60,000 hours - approx. 6.8 years (ambient temperature: 25°C, when lit continuously)
„ Preparation
Please have the following ready beforehand.
• Replacement backlight (Model:CA8-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.
[Electric Shock]
• Whenever changing the backlight, be sure the PS-A unit’s power cord has been disconnected and that the
unit is cooled down.
• When the PS-A unit’s power cord is connected and the PS-A unit is ON, high voltage runs through the
wires in the backlight area, do not touch them!
[Burn]
• The backlight becomes very hot while it is lit. Do not touch the backlight area until the area is cooled
down. 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.