
10 C745 User Guide Version 1.0
Air filter
The filter behind the air intake apertures on the front of the C475 amplifier should be cleaned or
replaced periodically, e.g. 3-6 months. (Filters in amplifiers located in more 'dirty' atmospheres may
require more frequent maintenance.) Access is via the blue front panel. The filter should be 'dry'
cleaned, using a vacuum cleaner preferably. Running the unit without a filter is not recommended
unless it is within a 'clean room'. Replacement filter material is available.
No other regular maintenance is required.
If you have any doubt about carrying out this procedure, refer to a service engineer or contact
your dealer.
If your amplifier develops a fault, please refer to your supplier for service and technical
support. Do not attempt to repair the fault yourself as this will invalidate the warranty.
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