Allen&Heath PA28 - Manual (Page 31)

PA User Guide 31
Fitting the PA12 Rack Ears
A pair of 19” rack ears is provided with the PA12. The ears
replace the front and side trims so that the console can be
mounted in a rack, plinth or case. Note that the PA12 can fit
into a standard 19” rack. The ears can fit in one of two
positions depending on how you want to mount the console in
the rack or other furniture.
The top panel assembly needs to be removed from the base to
gain access to the screws that hold the trims and ears in place.
Ensure that you have a suitable work surface with adequate
lighting and clear of any objects which may scratch or damage
the console panels. Tools required include a number 2 Pozi
and T10, T15 and T20 Torx screwdrivers.
1 Remove the 6x M3 countersunk top panel screws. Also
remove the 3x front and 3x rear M3 pan head fixing screws.
2 Carefully hinge the top panel assembly up from the base
as shown. Support the rear so that it does not slip. Unplug the
ribbon harness from the LR circuit card. You can now lift the
panel away and place it inverted on the work surface.
3 Unscrew the 6x 6B pan head front trim fixing screws shown
in the diagram. Take care to avoid damage to the faders. The
front trim including the armrest and carry handle can be
removed.
4 Locate the 4x internal M5 pan head screws fixing each side
trim to the chassis. Remove both trims. Align the rack ears in
the required position and fix these to the chassis using the 4x
M4 countersunk screws provided per side. Ensure they are
done up tight.
5 Check your work and ensure there are no loose parts or
debris in the chassis. Align the top assembly with the chassis
and plug in the ribbon harness. Make sure you align the plug
correctly with the socket. Carefully lower the assembly into
place. Refit the 6x top, 3x rear and 3x front fixing screws.
We recommend you keep the trims and their fixing screws in a
safe place for re-use in the future.
Do not obstruct the side ventilation slots or position
the console where air flow required for ventilation is
impeded. The console must not be operated in any carry or
flight case that obstructs these slots. Ensure adequate air
flow when rack or plinth mounting the console.