Precautions And Safety Notices; Product Safety Notice; Service Notes - ViewSonic VX2240W-4 Service Manual

1. Precautions and Safety Notices

1.1 safety precautions
This monitor is manufactured and tested on a ground principle that a user's safety comes first. However,
improper use or installation may cause damage to the monitor as well as the user. Carefully go over the
following WARNINGS before installing and keep this guide handy.
WARNINGS
This monitor should be operated only at the correct power sources indicated on the label on the rear end
of the monitor. If you're unsure of the power supply in your residence, consult you local dealer or power
company.
．Use only the special power adapter that comes with this monitor for power input.
．
Do not try to repair the monitor your self as it contains no user-serviceable parts. This monitor should only
be repaired by a qualified technician.
．
Do not remove the monitor cabinet. There is high-voltage parts inside that may cause electric shock to
human bodies, even when the power cord is unplugged.
．
Stop using the monitor if the cabinet is damaged. Have it checked by a service technician.
．
Put your monitor only in a clean, dry environment. If it gets wet, unplug the power cableimmediately and
consult your service technician.
．
Always unplug the monitor before cleaning it .Clean the cabinet with a clean, dry cloth. Apply
non-ammonia based cleaner onto the cloth, not directly onto the glass screen.
．
Keep the monitor away from magnetic objects, motors, TV sets, and transformer.
．
Do not place heavy objects on the monitor or power cord.

1.2 Product safety notice

Many electrical and mechanical parts in this chassis have special safety visual inspections and the
protection afforded by them cannot necessarily be obtained by using replacement components rated for
higher voltages, wattage, etc. Before replacing any of these components read the parts list in this manual
carefully. The use of substitute replacement parts which do not have the same safety characteristics as
specified in the parts list may create shock, fire ,or other hazards.

1.3 Service notes

When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
When replacing a high wattage resistor(more than 1W of metal oxide film resistor) in circuit board, keep
the resistor about 5mm away from circuit board.
Keep wires away from high voltage, high temperature components and sharp edges.
Keep wires in their original position so as to reduce interference.
Usage of this product please refer to also user's manual.
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