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DX Engineering offers complete service to all Comtek and DX Engineering electronic items. Many devices, especially those used in lightning and corrosion damage prone installations, require extensive specialized service experience and testing to assure proper performance when repaired. Therefore, for our products, we do not publish schematics. We do not offer replacement parts for the reason that we are not in the replacement parts business. However, reasonably priced service is available for all Comtek Systems devices and, of course, we service our own DX Engineering products made by our company. Many self-repair attempts have resulted in customers who become angry and dissatisfied that the parts "we sold them" did not fix the problem. Therefore, we choose to offer only the best options for service of Comtek and DX Engineering products.