40 Upgrade and Maintenance Manual TX2550 M4
● Only set screen resolutions and refresh rates that are specified in the
operating manual for the monitor. Otherwise, you may damage your monitor.
If you are in any doubt, contact your sales outlet or customer service center.
● Only valid for non hot-plug components
Before installing/removing internal components to/from the server, turn off
the server, all peripheral devices, and any other connected devices. Also
unplug all power cords from the power outlet. Failure to do so can cause
electric shock or damage.
Internal devices remain hot after shutdown. Wait for a while after shutdown
before installing or removing internal options.
● Do not damage or modify internal cables or internal devices. Doing so may
cause a server failure, fire, or electric shock and will void the warranty and
exempt the manufacturer from all liability.
● The circuit boards and soldered parts of internal options are exposed and
can be damaged by static electricity. To ensure reliable protection, you must
wear an earthing band on your wrist when working with this type of module
and connect it to an unpainted, conducting metal part of the server.
● Do not touch the circuitry on boards or soldered parts. Hold the metallic
areas or the edges of the circuit boards.
● Install the screw removed during installation/detaching internal options in
former position. To use a screw of the different kind can cause a breakdown
of equipment.
● The procedure of installation on this notes might change depending on a
configuration of option.
Batteries
● Incorrect replacement of batteries may lead to a risk of explosion. The
batteries may only be replaced with identical batteries or with a type
recommended by the manufacturer.
● Do not throw batteries into the trash can.
Batteries must be disposed of in accordance with local regulations
concerning special waste.
● Make sure that you insert the battery the right way round.
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