Precaution - LG FLATRON 27MP58VQ Service Manual

WARNING FOR THE SAFETY-RELATED COMPONENT.
• There are some special components used in LCD monitor that
are important for safety. These parts are marked
schematic diagram and the Exploded View. 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.
• 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.)
CAUTION
Please use only a plastic screwdriver to protect yourself
from shock hazard during service operation.
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes

PRECAUTION

WARNING
BE CAREFUL ELECTRIC SHOCK !
on the
• If you want to replace with the new backlight (CCFL) or LIPS
part, must disconnect the AC power 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.
Leakage Current Hot Check Circuit
- 3 -
AC Volt-meter
To Instrument's
0.15uF
exposed
METALLIC PARTS
1.5 Kohm/10W
When 25A is impressed between Earth and 2nd Ground
for 1 second, Resistance must be less than 0.1
*Base on Adjustment standard
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
Ω
LGE Internal Use Only