Precautions - LG FLATRON W1943SB Service Manual

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 Exploded View.
critical parts should
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.
• Protect the module from the ESD as it may damage the
electronic circuit (C-MOS).
• Make certain that treatment person's body is
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 soft material. (Cleaning with a dirty or rough cloth
may damage the panel.)
CAUTION
Please use only a plastic screwdriver to protect yourself
from shock hazard during service operation.
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
It is essential that these
be replaced with
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
the
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
To Instrument's
exposed METALLIC
PARTS
4
AC Volt-meter
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
1.5 Kohm/10W
LGE Internal Use Only