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NEC E657Q User Manual Page 8

Digital signage display.
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To prevent electric shock from the display, do not use with an extension cord,
receptacle, or other outlet unless the blades and ground terminal can be fully
inserted to prevent blade exposure.
Never connect the display to other than the specified voltage.
CAUTION:
Never remove the back cover of the display as this can expose you to very
high voltages and other hazards. If the display does not operate properly,
unplug the display and call your authorized dealer or service center.
Adjust only those controls that are covered in the instructions, as improper
changes or modifications not expressly approved by NEC could void the
user's warranty.
Batteries installed warning
Incorrect usage of batteries can result in leaks or bursting.
NEC recommends the following battery use:
Do not mix battery brands.
Danger of explosion if battery is incorrectly replaced. Replace only with
the same or equivalent type.
Do not combine new and old batteries. This can shorten the battery life
or cause liquid leakage of the batteries.
Remove dead batteries immediately to prevent battery acid from leaking
into the battery compartment.
Do not touch exposed battery acid as it may injure skin.
Remove the batteries if you do not intend to use the remote control for a
long period of time.
The batteries shall not be exposed to excessive heat such as sunshine,
fire or the lik
Image persistence
Please be aware that LCD Technology may experience a phenomenon
known as Image Persistence. Image Persistence occurs when a residual or
"ghost" image of a previous image remains visible on the screen. Unlike CRT
monitors, LCD displays' image persistence is not permanent, but constant
images being displayed for a long period of time should be avoided. To
alleviate image persistence, turn off the display for as long as the previous
image was displayed. For example, if an image was on the display for one
hour and a residual image remains, the display should be turned off for one
hour to erase the image.
NOTE:
As with all personal display devices, NEC DISPLAY SOLUTIONS recommends
displaying moving images and using a moving screen saver at regular
intervals whenever the screen is idle or turning off the display when not in use.
e.
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