LG Flatron L1718S, Service Manual

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3
PRECAUTION
WARNING FOR THE SAFETY-RELATED COMPONENT.
• There are some special components used in LCD
monitor that are important for safety.
These parts are
marked on the schematic diagram and
the replacement parts list.
It is essential that these
critical parts should be replaced with the
manufacturer’s specified parts to prevent electric
shock, fire or other hazard.
• Do not modify original design without obtaining written
permission from manufacturer or you will void the
original parts and labor guarantee.
TAKE CARE DURING HANDLING THE LCD MODULE
WITH BACKLIGHT UNIT.
• Must mount the module using mounting holes arranged
in four corners.
• Do not press on the panel, edge of the frame strongly
or electric shock as this will result in damage to the
screen.
WARNING
BE CAREFUL ELECTRIC SHOCK !
• If you want to replace with the new backlight (CCFL)
or inverter circuit, must disconnect the AC
adapter because high voltage appears at inverter
circuit about
650Vrms.
• Handle with care wires or connectors of the
inverter circuit. If the wires are pressed cause short
and may burn or take fire.
• Be careful while tilting and rotating the monitor to
avoid pinching hand(s)
Leakage Current Hot Check Circuit
AC Volt-meter
Good Earth Ground
such as WATER PIPE,
• Do not scratch or press on the panel with any sharp
objects, such as pencil or pen as this may result in
damage to the panel.
• Protect the module from the ESD as it may damage the
electronic circuit (C-MOS).
• Make certain that treatment person’s body are
grounded through wrist band.
• Do not leave the module in high temperature and in
areas of high humidity for a long time.
• The module not be exposed to the direct sunlight.
• Avoid contact with water as it may a short circuit within
the module.
• If the surface of panel become dirty, please wipe it off
with a softmaterial. (Cleaning with a dirty or rough cloth
may damage the panel.)
To Instrument's
exposed METALLIC
PARTS
1.5 Kohm/10W
CONDUIT etc.
CAUTION
Please use only a plastic screwdriver to protect yourself
from shock hazard during service operation.