Posiflex HT-4612X - Manual (Page 14)

Page 14
Cleaning for Front Ventilation
Use vacuum cleaner to remove any dust or threads accumulation away from
both the ventilation holes on front cover and ventilation grids on chassis
exposed after removal of the front cover.
Replacing Front Cover
Follow the opposite procedure as removing the front cover to replace the front
cover in position. Please make sure the all hooks on front cover is well
positioned into chassis. Please remember to check that the power switch is at
“Off” position before power and signal connection.
Accessing Side Ventilation Grids
The operation to further clean the side ventilation grids requires much more
highly technical maneuver. Therefore careful attentions must be taken
throughout the further cleaning operations below. When the main unit is
opened, there must be no liquid spill, no electro-conductive material, no
electric charged device come into the
area of the main unit. Please also note
that not to touch any component or cable
inside.
Please first disconnect every cable from
the main unit and for the HT-4600(E/X)
turn the LCD panel to straight up
position. Prepare enough space in front
of
the HT-4600(E/X)/PB-4600(E)
system and lay a piece of clean soft
clothes of appropriate size there to
prevent damage. With the back cable
Front Ventilation Grids on Chassis
Ventilation Holes on Front Cover
HT-4600(E/X)
PB-4600/E
Push The
Spring
Buttons on
Both Sides
and Raise The
Rear Part of
Top Cover