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Preventive maintenance consists of cleaning and visual inspecting
the unit. When accomplished regularly, preventive maintenance
may prevent malfunction and lengthen the apparatus life. The
severity of the environment in which the equaliser is used
determines the required frequency of preventive maintenance.
Regular cleaning prevents accumulated dust from penetrating
potentiometers.
The front panel can be cleaned with a soft cloth or a small soft-
bristle brush. The brush is particularly useful for dislodging dirt on
and around the controls and inside the slider slots. Dirt that
remains can be removed with a soft cloth dampened in a mild
detergent-and-water solution. Do not use strong solvents as they
may damage the paint, the screened lettering or the plastic control
knobs. Be careful not to let detergent leak into the potentiometer
slots as it may damage the carbon resistance tracks.
The rear panel can be cleaned in the same way as the front panel.
The top cover minimizes accumulation of dust inside the unit and
should normally be in place when using the equaliser. Dirt on
components acts as an insulating blanket, preventing efficient heat
dissipation. It also provides an electrical conduction path that
Maintenance and service information
Preventive
maintenance
Corrective
maintenance
Corrective maintenance consists of component replacement and
repair of the unit.
Unless you are a highly skilled technician, do not try to repair this
unit. Moreover, specialised components are used in this
apparatus and for several of them it is very doubtful if you could
find a correct replacement. Therefore, contact your dealer in the
event of failure. He (or she) has notice of the Apex authorised
service centres and can advice you about what to do. Copy the
service request form on the next page, fill it out and ship it with the
defective unit. It will help the service technician to localise the
problem.
It is often more expedient to call your dealer or our factory
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