EM Acoustics X3-DFSP self-powered downfill element - Manual (Page 25)

Page 25 of 36
X3-SP User Manual
v1.0 May 2012
6.0 - Servicing Information
All X3 and X3-DF components can be removed for service purposes if required, using the
minimum of tools.
X3/X3-SP enclosure - Removing LF Drive Unit
1. Place the enclosure on its top and remove the M6 socket cap screws securing the
access door on the underside. Gently lift the access door – please take care as
there is an EPS compression bung on the inside of the door which can get caught
on the mounting flange if care is not taken. Set the access door to one side.
2. Remove the six socket-head machine screws holding the LF drive unit in place.
Gently lift the drive unit approximately 6” out of its recess, disconnect the cables
and the driver can now be fully removed. Please make a note of drive unit polarity
for future reinstatement, as well as the rotation orientation as the drive unit will
only fit in the enclosure one way.
3. To re-install the drive unit, re-connect the cables observing the correct polarity and
then seat the drive unit in its recess. Rotate if necessary to ensure the drive unit
sits correcting within its recess. Re-instate the machine screws and re-tighten –
being careful not to overtighten. Replace the access door, and reinstate the
machine screws to hold the door in place.
X3/X3-SP enclosure - Removing the MF Drive Unit
1. Lie the X3 enclosure on its front so that the rear panel is easily accessible.
2. A) On the X3 enclosure, remove the eight countersunk M6 machine screws around
the outside edge of the access door, and then the door can be removed. Once the
door is free, disconnect the two 2-way connectors and the one 12-way connector
which attach the drive units to the test circuit PCB. Set the door aside.
B) On the X3-SP, remove the eight socket-head machine screws around the
outside of the amplifier module fascia, and then the amplifier module can be
removed. Once the module is released, disconnect the two 2-way and one 12-way
connectors from the test circuit PCB. Set the amplifier module to one side.
3. Using a 13mm spanner or socket, undo the four M8 hex-head bolts securing the
rear sealing bowl for the midrange drive unit. Once the bowl is clear, reach inside
and disconnect the two spade terminals from the drive unit. The bowl can then be
completely removed from the enclosure.
4. Remove the eight M6 socket head bolts securing the 8” drive unit in place. The
drive unit can then be removed. Ensure you lift the drive unit straight up, as the