ViewSonic PJ750 Service Manual - Page 21

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Page 21 highlights

• Before Replacing the LCD I Lens Prism You should not replace separately the parts of the liquid crystal LCD / Lens Prism because it works properly only when used together. Therefore, regarding these parts, you can either replace part , LCD / Lens Prism Ass'y, or send the whole unit LCD / Lens Prism Ass'y back to SUPPLIER, where we will replace the malfunctioning part, recondition the device and send it back to you. In that case please contact our distributor. DISTRIBUTOR .4> • Do not disassemble the unit because replacement of separate parts is not possible. • For repairs of the product, please contact our distributor. SUPPLIER G Panel Return Replacement of G Panel -> Reconditioning • Air Filter Maintenance The air filter should be cleaned as described below at intervals of approximately 100 hours. 1. Switch the projector power supply OFF, and remove the power cord from the power outlet. 2. Clean the air filter with a vacuum cleaner. • Switch power OFF and remove the power cord from the power outlet before beginning maintenance work. Please read the separate "SAFETY INSTRUCTIONS" thoroughly to ensure that maintenance is performed correctly. • Replace the air filter if contamination cannot be removed, or if it is damaged. Contact your dealer in such case.(Option Air filter assembly : MU01421) • Do not use the equipment with the air filter removed. •When the air filter is clogged with dust etc. the CHECK AIR FLOW message appears on the screen and the power supply is switched OFF automatically to prevent the temperature rising inside the projector. ViewSonic Corporation 18 CONFIDENTIAL -- DO NOT COPY PJ750

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Before
Replacing
the
LCD
I
Lens
Prism
You
should
not
replace
separately
the
parts
of
the
liquid
crystal
LCD
/
Lens
Prism
because
it
works
properly
only
when
used
together.
Therefore,
regarding
these
parts,
you
can
either
replace
part
,
LCD
/
Lens
Prism
Ass'y,
or
send
the
whole
unit
LCD
/
Lens
Prism
Ass'y
back
to
SUPPLIER,
where
we
will
replace
the
malfunctioning
part,
recondition
the
device
and
send
it
back
to
you.
In
that
case
please
contact
our
distributor.
DISTRIBUTOR
.4>
Do
not
disassemble
the
unit
SUPPLIER
G
Panel
because
replacement
of
separate
parts
is
not
possible.
For
repairs
of
the
product,
please
contact
our
distributor.
Return
Replacement
of
G
Panel
->
Reconditioning
Air
Filter
Maintenance
The
air
filter
should
be
cleaned
as
described
below
at
intervals
of
approximately
100
hours.
1.
Switch
the
projector
power
supply
OFF,
and
remove
the
power
cord
from
the
power
outlet.
2.
Clean
the
air
filter
with
a
vacuum
cleaner.
Switch
power
OFF
and
remove
the
power
cord
from
the
power
outlet
before
beginning
mainte-
nance
work.
Please
read
the
separate
"SAFETY
INSTRUCTIONS"
thoroughly
to
ensure
that
maintenance
is
performed
correctly.
Replace
the
air
filter
if
contamination
cannot
be
removed,
or
if
it
is
damaged.
Contact
your
dealer
in
such
case.(Option
Air
filter
assembly
:
MU01421)
Do
not
use
the
equipment
with
the
air
filter
removed.
•When
the
air
filter
is
clogged
with
dust
etc.
the
CHECK
AIR
FLOW
message
appears
on
the
screen
and
the
power
supply
is
switched
OFF
automatically
to
prevent
the
temperature
rising
inside
the
projector.
ViewSonic
Corporation
18
CONFIDENTIAL
--
DO
NOT
COPY
PJ750