Safety Precautions; Important Safety - LG 55LB6500-um Service Manual

Many
and mechanical
electrical
Schematic and
Diagram
essential that these
is
It
Hazards
Shock or other
Fire
Do
not the
modify
original
Guidance
General
An
Transformer
isolation
of a receiver
servicing
Use
line a transformer
power
the technician
protects
shocks
from
electrical
also the
will
It protect
damaged accidental
by
introduced
inadvertently
fuse or
any Fusible
If
with the
replace specified
it
When
a
replacing high
W
over keep the resistor
1
wires from
Keep away
Before the receiver
returning
AC
perform an
always
metallic of the
parts cabinet
be
the safe
is
sure set
shock
Cold CheckAntenna
Leakage Current
AC
With
the instrument
across
electrical jumper
switch the on
in
position
tied
prongs
plug together
each
metallic
exposed
etc
jacks
the metallic
exposed
If
measured
resistance should
When
the metal
exposed
must be
infinite
reading
An
other
abnormality
receiver returned the
is to
n
LG
2014
Electronics
Copyright
and
service
Only for training
Business
Confidential
to Protective
Subject

SAFETY PRECAUTIONS

IMPORTANT SAFETY

chassis
parts in this
View
Exploded
be
should
special safety parts
without of
design permission
should be used
always
whose
chassis not isolated from
is
of
adequate power
rating
from accidents
in
resulting personal
and
receiver
its components
shorts the
of that
circuitry
the service
during operation
TV
Resistor this receiver
in
wattage resistor Oxide Metal Film
mm
PCB
10
from
away
or high
temperature
high voltage
to the
customer
current check on
the
leakage
such
as antennas
terminals
without
damage
to operate
Check
Cold
AC
removed
from source
plug
AC
two Place
the
plug
prongs
ohm
connect meter
one lead of
ohmmeter
and
touch other lead
such
as antenna terminals
parts
has
a return the
to
part path
MO 52
be between and
1
has no
return the
to
path
must be
exists that corrected
customer
reserved
Inc
All
rights
purposes
Information
Order
NOTICE
have
characteristics
special safetyrelated
same
with the
components
replaced
manufacturer
Leakage Current
AC
the cord
Plug
the
during
AC
Do
not use a
the line Isolation
15 K
Connect
as
this
between known
a
injury
and
the exposed
AC
Measure
the
1000 ohmsvolt
from with
being
Reverse
be the
may
plug
measurements
measured must
mA
05
blown
is
case any measurement
In
shock
of
possibility
before
Resistor repaired
Current
Leakage
parts
exposed
etc to
of electrical
To Instruments
exposed
METALLIC PARTS
connect an
AC
the
AC
to the
turn to
in
phone
When
25A
for
second
1
the
chassis
xBase
MO
on Adjustment
chassis the
before the
3
These
are
parts identified
as recommended manual
in this
Hot Check See
below
Figure
AC
the outlet
into
directly
Transformer
during
10
watt resistor with a
in
parallel
Water
good earth ground Pipe
metallic
parts
across the resistor
voltage using
more
or sensitivity
AC AC
and
cord the outlet
into
each
for metallic
exposed
RMS
075
exceed which
not
volt
out of the
is limits
hazard and must
the set
customer
returned the
is to
it
Hot Check
circuit
AC
Voltmeter
Good
such
CONDUIT
between and
Earth
impressed
is
be than
less
must
Resistance
standard
LGE
LGE910IT000143506
b
the
by
in
to prevent
check
this
015
uF
capacitor
etc
Conduit
AC
voltmeter
AC
repeat voltage
Any
part voltage
is corresponds to
there
is
specified
be checked and
Grcund
Earth
WATER
PIPE
as
etc
2nd Ground
0
01
Use
Internal
Only
CX13790003