Chapter 10 - Maintenance and Inspection
10-3
PL-5910 Series Users Manual
The PL unit’s backlight can be changed after it burns out.
PL units use a CFL, long-life type backlight. The actual life of the backlight however,
will vary depending on the PL's operating conditions, and periodic replacement may be
required.
Follow the steps explained below.
Please use the following table to identify which backlight model number to use
when ordering your backlight.
• Whenever changing the backlight, be sure the PL unit's
power cord has been disconnected and that the unit is
cooled down.
• When the PL unit's power cord is connected and the PL
is ON, high voltage runs through the wires in the back-
light area—do not touch them!
• When the PL unit's power has just been turned OFF, the
backlight area is still very hot! Be sure to wear gloves to
prevent being burned.
• Do not try to replace the backlight while the PL is installed
in a cabinet or panel. Remove the PL first, then begin the
backlight replacement procedures.
• Be careful when handling the backlight, since it is made of
glass and very fragile.
WARNINGS
PL Type
Backlight Type
PL- 5900T
PL- 5901T
GP577RT-BL00-MS
10.3.2 Replacing the Backlight
