MAINBOARD FOR A DIGITAL VIDEO RECORDER. IT IS A PRINTED CIRCUIT BOARD WHICH IS INACTIVE WHEN IMPORTED. THE BOARD IS INSERTED INTO A DVR CHASSIS AND INTEGRATED WITH OTHER COMPONENTS INCLUDING A POWER SUPPLY UNIT BEFORE BECOMING ACTIVE. THE MAINBOARD IS USED TO MECHANICALLY SUPPORT AND ELECTRICALLY CONNECT ELECTRONIC COMPONENTS USING CONDUCTIVE PATHWAYS.

GIR'S 1 & 6 TEXT TO HEADING 8522