{"product_id":"giddings-and-lewis-servo-control-486-circuit-board-501-04707-00-0226-546","title":"Giddings and Lewis Servo Control 486 Circuit Board 501-04707-00","description":"\u003cp\u003eGiddings and Lewis Servo Control 486 circuit board, part number 501-04707-00, revision R5, dated 10\/95. Also referenced by assembly sticker 503-25209-01. This large-format, multi-layer PCB was produced by Giddings and Lewis for use in their 486-based CNC machine tool control systems, including horizontal boring mills and machining centers equipped with the G\u0026amp;L Centurion and related control platforms.\u003c\/p\u003e\n\n\u003cp\u003eThe board features a dense population of through-hole and surface-mount components including multiple CHIPS-branded processor ICs, oscillator circuits, DIP logic packages, and numerous proprietary G\u0026amp;L subassembly ICs identified by 502-series part numbers. Three SBX expansion connectors are present along the left edge, consistent with the G\u0026amp;L modular backplane architecture. The board was manufactured in the United States.\u003c\/p\u003e\n\n\u003cp\u003eThis part number appears in active US surplus markets as a direct replacement for failed or damaged servo control boards in G\u0026amp;L 486-generation CNC systems. It is suited for facilities maintaining legacy Giddings and Lewis machine tools and requiring a spare or replacement servo control board. Compatibility should be confirmed against the specific machine control configuration prior to installation.\u003c\/p\u003e\n\n\u003cp\u003eStock # 0226-546\u003c\/p\u003e","brand":"Giddings and Lewis","offers":[{"title":"Default Title","offer_id":48856864227568,"sku":"m00546","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/6648\/7280\/files\/B2548C1D-E67B-48A9-A883-A83BB46D002D.jpg?v=1771631075","url":"https:\/\/mroexchange.com\/products\/giddings-and-lewis-servo-control-486-circuit-board-501-04707-00-0226-546","provider":"MRO Exchange","version":"1.0","type":"link"}