{"product_id":"liftmaster-k79-60142","title":"LiftMaster K79-60142 Control Board — MSLDCBB \/ MSWDCBB","description":"\u003cp\u003e\u003cstrong\u003eThe LiftMaster K79-60142 is the control-board service reference documented for the MSLDCBB Mega Slide and MSWDCBB Mega Swing operator families. It is a platform-specific replacement, not a universal board for every Mega-branded barrier or gate. Match the full operator model, installed board, required configuration and service instructions before ordering. A board repair should preserve the intended slide or swing operation and the complete protection system; it does not automatically upgrade older equipment to a different operator generation or add unsupported radio and accessory capabilities.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eCompatibility — Models, Versions and Exclusions\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel or selection point\u003c\/th\u003e\n\u003cth\u003eCompatibility requirement\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMSLDCBB\u003c\/td\u003e\n\u003ctd\u003eManufacturer service information identifies this board; verify installed revision.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMSWDCBB\u003c\/td\u003e\n\u003ctd\u003eDocumented board family; preserve the correct swing-operator configuration.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Mega products including barrier arms\u003c\/td\u003e\n\u003ctd\u003eNo universal interchangeability established from the Mega name.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirmware or chip revisions\u003c\/td\u003e\n\u003ctd\u003eConfirm current kit contents and required configuration rather than assuming identical software.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExisting radio and safety accessories\u003c\/td\u003e\n\u003ctd\u003eVerify separately against the actual board and operator documentation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eDiagnose the System and Preserve the Correct Operator Configuration\u003c\/h2\u003e\u003cp\u003eAn operator that fails to run may have a supply, battery, wiring, control-input or mechanical problem. Have a qualified technician evaluate the complete system before choosing a board. Record any diagnostics and inspect the connected devices so a replacement is not installed into an unresolved fault.\u003c\/p\u003e\u003cp\u003ePhotograph board labels, wiring and configuration settings before disassembly. The same service family can support different operator arrangements, so the installed model and required settings matter. Confirm any supplied firmware or replaceable chip with the current kit and manufacturer procedure. Do not assume the board includes a new radio, changes remote compatibility or certifies a complete modernization of the entrance.\u003c\/p\u003e\u003ch2\u003eSpecifications and Product Identification\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eK79-60142\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent\u003c\/td\u003e\n\u003ctd\u003eControl board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDocumented families\u003c\/td\u003e\n\u003ctd\u003eMSLDCBB \/ MSWDCBB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperator types\u003c\/td\u003e\n\u003ctd\u003eMega Slide \/ Mega Swing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelection requirement\u003c\/td\u003e\n\u003ctd\u003eExact model, installed board and configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeparate systems\u003c\/td\u003e\n\u003ctd\u003eMotor, charging supply, radio and external protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eBefore Ordering\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRecord the complete Mega Slide or Mega Swing model and board label.\u003c\/li\u003e\n\u003cli\u003eInspect the power, battery, wiring and protection inputs during diagnosis.\u003c\/li\u003e\n\u003cli\u003eDocument the configuration and all connected access devices.\u003c\/li\u003e\n\u003cli\u003eConfirm the current board revision, kit inventory and commissioning requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Contents and Separate Requirements\u003c\/h2\u003e\u003cp\u003eThis offer identifies the control board. A radio receiver, firmware chip supplied separately, battery, charger, motor, wiring harness and complete enclosure are not promised as included. Confirm the current service package and any model-specific configuration parts before purchase. A parts diagram showing nearby electronics does not mean every component is included in a board-only repair order.\u003c\/p\u003e\u003ch2 class=\"safety-warning\"\u003eSafety Warnings — Read Before Installation or Service\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWARNING: A control-board repair can change gate movement and protection behavior. Use a qualified gate-systems technician and secure the gate before service.\u003c\/li\u003e\n\u003cli\u003eDisconnect all applicable sources, including the battery and any AC or solar charging supply, according to the model-specific procedure.\u003c\/li\u003e\n\u003cli\u003eDo not bypass a protection input to make the replacement operate. Preserve the documented wiring and use only approved accessories for the actual controller.\u003c\/li\u003e\n\u003cli\u003eRecheck travel, reversal, access commands and every required protection device before allowing normal traffic through the entrance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRelated Products and Important Differences\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/garage-doorparts.com\/products\/liftmaster-lmrrul-monitored-retro-reflective-photo-eye\"\u003eLMRRUL monitored photo eye\u003c\/a\u003e — a separate protection option only where the exact operator and control revision approve it; not a universal legacy retrofit.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/garage-doorparts.com\/products\/liftmaster-lmwekitu-monitored-wireless-edge-kit-for-gate-operators\"\u003eLMWEKITU monitored wireless edge kit\u003c\/a\u003e — a separate edge communication system for approved controls and resistive edges; not a replacement for this mechanical or electrical service part.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWill this fit a Mega Arm barrier operator?\u003c\/h3\u003e\u003cp\u003eNo universal Mega-family fit is established. Use the exact operator’s approved board reference.\u003c\/p\u003e\u003ch3\u003eDoes it include a new radio receiver?\u003c\/h3\u003e\u003cp\u003eA separate radio is not promised; verify the current kit and existing radio compatibility.\u003c\/p\u003e\u003ch3\u003eCan I ignore the original board settings?\u003c\/h3\u003e\u003cp\u003eNo. Record the configuration and follow the manufacturer’s commissioning procedure for the actual operator.\u003c\/p\u003e\u003ch3\u003eWill it fix weak batteries or a binding gate?\u003c\/h3\u003e\u003cp\u003eNo. Power and mechanical faults need separate diagnosis and correction.\u003c\/p\u003e\u003ch2\u003eNeed Help Confirming the Right Product?\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/garage-doorparts.com\/pages\/contact\"\u003eContact Garage-DoorParts.com before ordering\u003c\/a\u003e. Send the full equipment model, readable part labels and photographs of the installed assembly. Include the dimensions, electrical configuration or accessory details relevant to your project so the listing can be checked against the actual installation.\u003c\/p\u003e","brand":"Controlled products","offers":[{"title":"Default Title","offer_id":60655792193822,"sku":"K79-60142","price":593.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/2781\/5710\/files\/k79-60142.png?v=1793140016","url":"https:\/\/garage-doorparts.com\/products\/liftmaster-k79-60142","provider":"garage-doorparts.com","version":"1.0","type":"link"}