Assembly Qc; Before The Cover Is Screwed On; After The Cover Has Been Screwed On - Alesis DEQ224 Service Manual

4) Assembly QC

The manufacturer is responsible for QC during the assembly of the unit,
including all procedures to ensure that the final unit is clean and free of
marks, scratches, and smudges.

Before the cover is screwed on

The following suggested check is intended as a rough guide for inspecting
the unit before securing the cover of the unit:
1) Check all components for quality such as scratches, marks,
deformities in the metal work, etc.
scratches, smudges, debris, and other defects that might cause
imperfect viewing of the LEDs behind it.
2) Check that the PCB is mounted correctly.
secured to the rear panel with a nut.
3) Check all cabling for correct orientation and placement.
the cabling is secure and will not rattle when the unit is moved or
turned upside down
4) Check the fit of all mechanical parts for gaps between pieces that
should fit tightly together.
5) Check sub-panel assembly for proper interaction with the front panel
such as switch mechanical operation and lens fit.
has been properly glued and does not extend beyond the front panel.
6) Check the silkscreen on the front and rear of the unit for
correctness of color and content against the latest design.
sure that all artwork is clear and correctly aligned.
7) Quickly plug the unit into an Alesis P3 type power supply to ensure
LEDs light and proper startup screen appears.
check to make sure that the front lens is clear and working as
anticipated.

After the cover has been screwed on

The following suggested check is intended as a rough guide for inspecting
the unit after securing the cover of the unit:
1) Check all components for quality such as scratches, marks,
deformities in the metal work, etc.
scratches, smudges and other defects that might cause imperfect
viewing of the LEDs behind it.
2) Check for all the external screws.
manufacturer.
3) Check the fit of all mechanical parts for gaps between pieces that
should fit tightly together.
4) Rotate the unit in all directions and listen for any lose parts that
may rattle inside the box.
properly secured.
5) Check to make sure that the proper serial number has been attached to
the unit.
6) Clean the unit from all debris and marks caused by handling the unit.
Check the front lens for
All audio jacks should be
Check the front lens for
Item count to be provided by
Listen to make sure the cabling has been
Make sure
Make sure the lens
Make
While the LEDs are on,