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7-2 Maintenance
PLZ-U
7.1
Maintenance
Periodic maintenance and inspection are essential to maintain the initial perfor-
mance of the PLZ-U over an extended period.
• Be sure to turn off the POWER switch and remove the power cord plug or
turn off the switchboard. If you do not, death or injury may result from elec-
tric shock.
7.1.1
Cleaning the Panels
If the panel needs cleaning, gently wipe using a soft cloth with water-diluted neutral
detergent.
• Do not use volatile solvents such as thinner or benzine. They may discolor
the surface, erase printed characters, or cloud the LCD.
7.1.2
Cleaning the Dust Filter
A dust
fi
lter is installed on the inside of the louver on the front panel. Periodically
clean the
fi
lter to prevent clogging.
• Clogged
fi
lters hinder the cooling of the inside of the instrument and can
cause a malfunction and shortening of the service life.
Cleaning procedure
1.
Remove the louver from the
panel. To do so, place your
fi
nger on the bottom edge of
the louver and while pressing
upward pull it toward you.
If the louver does not come off
easily, use your other hand and
pull the bottom edge of the lou-
ver toward you. This will make
the task easier.
Fig.7-1
Removing the louver
WARNING
CAUTION
CAUTION
Содержание PLZ-30F
Страница 32: ...2 18 Installation and Preparation PLZ U ...
Страница 58: ...4 14 Basic Operation PLZ U ...
Страница 144: ...6 52 Remote Control PLZ U ...
Страница 145: ...PLZ U Maintenance 7 1 Chapter 7 Maintenance This chapter explains the PLZ U maintenance 7 7 ...
Страница 186: ...A 26 Appendix PLZ U ...
Страница 190: ...I 4 Index PLZ U ...
Страница 191: ......