User manual

MAINTENANCE
General Maintenance
All printed circuit board assemblies can be accessed by removing the top cover plate,
five DZUS fasteners hold the plate in place. To loosen the DZUS fasteners a 90 degree
anti-clock-wise rotation is all that is required. For cleaning purposes it will also be
necessary to remove the bottom plate. The bottom plate is held on by four DZUS
fasteners. The front panel is affixed by four M5 x 12mm countersunk socket head screws
(black) and can be removed using a 3mm AF Allen key. The display board is held on to
the front panel by three M3 x 20mm countersunk socket head screws (black) together
with three 9mm spacers, washers, shake proof washers and M3 nuts. The fan and the
fan guard are also held on by four M5 x 10mm Pan Head Posidrive screws.
The S-DMX should be cleaned periodically to remove dust, grease and other
contaminants. The surface of all the printed circuit boards should be cleaned using dry
air at low pressure (psi). If grease is to be removed use Arklone F or Freon TF and remove
grime with clean dry air at low pressure. Clean the front panel with a soft cloth
dampened with a mild solution of detergent and water. DO NOT USE ARKLONE or
FREON ON THE DISPLAY FILTER as this will cause damage.
Only high quality, heavily gold-plated edge connector blades and edge socket pins are
used and problems in this area are unlikely to occur. It is extremely important that
chemical contact cleaners are not used on these blades. This type of cleaner results in
gross contamination of the edge pin sockets that cannot be removed without replacing
the socket itself. If you suspect problems in this area, then, as a last resort only, use a
rubber to clean the edge blades in question.
It is recommended that the 3.6V mempac battery (AMS Neve Part No. 330-164) on the
microprocessor card (SUN820-053) is replaced every two years.
After replacing the battery reset the unit by pressing 'D' then '0'.