TMX428 Manuals eIFU If your TMX428 or TMX428CP serial number is FVDC-7585 or later select the Rev8 owner’s manual. Addendum(s) to the TMX428 Rev8 Owner’s Manual. If your TMX428 or TMX428CP serial number is FVDC-0001 thru FVDC-7584 select the Rev6 owner’s manual.