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VXI Technology, Inc.
52 CT-400 Service Information
CLEANING THE AIR FILTERS
Two air filters are present on the CT-400: a module fan filter and a power supply fan filter.
Keeping these filters clean is important in maintaining an adequate air flow through the
mainframe and over the power supply. The air filters can be cleaned in the following manner.
Cleaning the Power Supply Fan Filter
1) Power off the mainframe and remove the power cord.
2) Locate the metal cover plate to the right of the power cord connector and fuse.
3) Loosen the two thumbscrews holding the cover plate and remove it.
4) Slide the power supply filter element out of the slot underneath the cover plate.
5) Blow the dust and dirt out of the air filter element using compressed air or, optionally, use
water and a mild soap.
6) If water and soap are used, make sure to rinse the element of all soap and allow it to dry
before reinstalling it in the mainframe.
7) Reinstall the air filter element and the cover plate and tighten the thumbscrews.