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1. Precautions in
handling LCD
Modules (hereinafter LCM)
EVERBOUQUET/WAYTON technology’s LCM has
been assembled and accurately calibrated before delivery.
Please observe the following criteria when handling.
A. Do not
subject the module to
excessive shock.
B. Do not
modify the tab on
the metal holder.
C. Do not
tamper with the printed circuit board.
D. Limit soldering of the printed circuit board to
I/O terminals only.
E. Do not touch the zebra strip nor modify its location.
2. Static electricity warning:
EVERBOUQUET/WAYTON’s LCM uses CMOS
LSI technology. Therefore, strict measures to avoid static electricity discharge are followed through all processes from manufacturing through shipping. When handling an LCM, take
sufficient care to prevent static electricity discharge as you would any CMOS IC.
A. Do not take the LCM from its anti-static bag until it’s to be assembled.
LCM’s are individually packaged in bags
specially treated to resist static electricity.
When storing, keep the
LCM packed in the
original bags, or store them in a
container processed to be
resistant to static electricity, or in an
electric conductive container.
B. Always use
a ground strap when
handling a LCM.
Always use a ground strap while working with the module, from the time
it is taken out
of the anti-static bag until it is
assembled. When it is
necessary to transfer the LCM, once it
has been taken out
of the bag, always place it in
an electric conductive container. Avoid wearing clothes made of chemical fibers, the use
of cotton or conductive treated fiber clothing is recommended.
C. Use a no-leak iron for soldering the LCM.
The soldering iron to be
used for soldering the I/O terminals to the LCM is
to be insulated or grounded at the
iron tip.
D. Always ground electrical apparatuses required for assembly.
Electrical
apparatuses required to assemble the LCM into
a product, i.e. electrical screw drivers, are to be first grounded to avoid transmitting spike noises from the motor.
E. Assure that the work
bench is properly grounded.
F. Peel off
the LCM protective film slowly.
The module is
attached with a film
to protect the display surface from contamination, damage, adhesion of flux, etc. Peeling off this film
abruptly could cause static electricity to be
generated, so peel the
tape slowly.
G. Pay attention to the
humidity in the work
area.
50~60% RH is recommended.
3. Precautions for the soldering of an
LCM
The following
procedures should be
followed when
soldering the
LCM:
A. Solder
only to
the I/O
terminal.
B. Use
a no
leakage soldering
iron and
pay particular attention to
the following:
(1) Conditions
for soldering
I/O terminals
Temperature
at iron tip: 280℃+10℃
Soldering
time :
3-4 sec/terminal
Type
of solder:
Eutectic solder
(rosin flux
filled)
Note:
Avoid using
flux, because
it could
penetrate the
module and
the module
may get
contaminated during
cleaning. Peel
off protective film after
soldering of
the I/O terminals
is finished.
By following
this procedure,
the surface
contamination, caused by
the dispersion
of flux
while soldering,
can be
avoided.
(2)
Removing the
wiring
When
a lead
wire, or
a connector
to the
I/O terminal
of the
module is
to be
removed, remove
it only
after the
solder at
the connection has sufficiently
melted since
the I/O
terminal is
a through hole.
If it
is forcefully
removed, it
could cause
the terminal
to break
or peel.
The recommended
procedure is
to use a
suction-type solder remover.
Caution, do
not reheat the
I/O terminal
more than
3 times.
4. Long-term storage
If the
correct method
of storage
is not followed, deterioration
of the
display material
(polarizer) and
oxidation of
the I/O
terminal plating
may make
the soldering
process difficult.
Please comply
with the
following procedure.
A. Store
in the
shipping container.
B. If
the shipping
container is
not available, place
in anti-static
bags and
seal the opening.
C. Store
the modules
where they
are not
subjected to
direct sunlight
or a fluorescent lamp.
D. Store
in a
temperature range of
0℃~35℃
with
low relative
humidity.
5. Precautions in use of LCD modules
A. Do
not give
any external
shock.
B. Do
not wipe
the surface
with hard
materials.
C. Do
not apply
excessive force
on the
surface.
D. Do
not expose
to direct
sunlight or
fluorescent light
for a
long
time.
E. Avoid
storage in
high temperature and
high humidity.
F. When
storage for
a long time
at 40℃or
higher is
required, R/H
shall be
less than
60%.
G.
Liquid in
LCD is
a hazardous
substance. Must not
lick,
swallow
when the
liquid is
attached
to your hands, skin,
clothes
etc.
Wash it
out thoroughly.
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