Proface APL3000B - Node Box PC Bedienungsanleitung PDF herunterladen (Seite 103)

PS-3710A/PS-3711A Series Hardware Manual

4-6

4.5 Replacing the Backlight

About 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).

• The backlights of the PS-A which is marked on Rev.5 cannot be replaced by the

user. When the backlight needs to be replaced, please contact your local PS-A

distributor.

• When the LED setting is specified with the RAS control in Control Panel and a backlight

burnout is detected, the status LED blinks in orange/red.

• 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 cor-

rectly. Therefore, since any type of touch panel contact could have an unexpected or dan-

gerous 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’s power cord has been

disconnected and that the unit is cooled down.

• When the PS-A’s power cord is connected and the PS-A is ON, high voltage runs

through the wires in the backlight area, do not touch them!

[Burn]

• When the PS-A’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.

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Proface APL3000B - Node Box PC Bedienungsanleitung Seite 103