{"product_id":"giddings-lewis-crt-data-interface-board-501-03895-02-0226-564","title":"Giddings \u0026 Lewis CRT Data Interface Board 501-03895-02","description":"\u003cp\u003eUsed in Giddings \u0026amp; Lewis CNC machining center control systems, the 501-03895-02 is a CRT Data Interface board carrying assembly numbers 502-03098-01 and 503-15596-02 as printed on the PCB silkscreen. The board is a large-format, double-sided printed circuit assembly populated with TTL logic ICs including DM74LS series devices, SP9000-series components, and a Hitachi HD46505SP-2 CRT controller IC, which is consistent with display interfacing functions in legacy CNC operator panel systems. The Hitachi HD68B45SP processor visible at position U70 further supports a CRT-based display controller function. Multiple sub-assembly sticker labels are present on ICs across the board, indicating factory-level component-level assembly tracking. Edge connectors are visible along two sides of the board, consistent with a backplane or card cage installation. The board shows signs of previous installation use. Silkscreen text reads \"CRT DATA INTERFACE\" across the top edge, with board identifier 501-03895-02 printed alongside. A \"BD-TEST\" label is visible in the lower right corner of the component side. This board is a direct fit for Giddings \u0026amp; Lewis CNC control cabinets utilizing the 500-series control architecture.\u003c\/p\u003e\n\n\u003cp\u003eStock # 0226-564\u003c\/p\u003e","brand":"Giddings \u0026 Lewis","offers":[{"title":"Default Title","offer_id":48884975927536,"sku":"m00564","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/6648\/7280\/files\/2C585468-C4C2-4F85-92B0-B191BF003C99.jpg?v=1771862743","url":"https:\/\/mroexchange.com\/products\/giddings-lewis-crt-data-interface-board-501-03895-02-0226-564","provider":"MRO Exchange","version":"1.0","type":"link"}