Barco – TransForm A – DOC-3358-2 – service manual – Revision 06 – March 2007
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2-15
2.3.6
Opening the front cover of the OmniBus A18
The front cover provides access to hot-swappable components.
WARNING: Hazardous moving parts! Keep fingers and other body parts away!
Behind the front cover on the upper front there are the fans located. These fans are spinning very
fast. When opening the flap they are no longer powered, nevertheless they need some time to
spin out. During this period they still have the ability to harm you. Do not stick your fingers or ob-
jects into the fans!
Be very careful, when opening the flap! The fans are close to the housing screws you loosened
before. Do not stick your fingers into the O
MNI
B
US
A18 to open the flap!
After opening the flap, wait until the fans have stopped spinning before touching anything at the
front of the O
MNI
B
US
A18!
When opening the front cover of the OmniBus A18, the ventilation fans will stop and the
cooling of the device is interrupted as long as the flap is open. Therefore the flap should not
be open longer than 5 minutes, to guarantee at all times sufficient cooling!
•
Remove the three housing screws [4], [5] and [6] on the upper front of the
O
MNI
B
US
with a Phillips screwdriver!
•
Open the flap, by turning it downwards and remove it!
•
With the flap removed there is access to the three fans and to the one or two power modules, please see
the figure below:
2a
2b
3a
3b
4a
1b
1a
4b
1a (, 1b)
a
– securing screw of power module (and optional
b
– redundant power module)
2, 3, 4
securing screw of fan 1, 2 and 3
Figure 2-20
Front of O
MNI
B
US
A18, view inside
•
When servicing is done do not forget to readjust the front cover of the O
MNI
B
US
A18 and to tighten the three
housing screws [4], [5] and [6] at the upper side; please refer to
Figure 2-14 Front of the OmniBus A18
.
