{"id":645602,"date":"2026-09-21T12:56:03","date_gmt":"2026-09-21T07:26:03","guid":{"rendered":"https:\/\/stitchpartner.com\/?post_type=product&p=645602"},"modified":"2026-09-22T08:01:08","modified_gmt":"2026-09-22T02:31:08","slug":"jack-a2c-a2-cz-pcb-control-board-9950014900","status":"publish","type":"product","link":"https:\/\/stitchpartner.com\/hi\/product\/jack-a2c-a2-cz-pcb-control-board-9950014900\/","title":{"rendered":"Jack A2C A2-CZ PCB Control Board 9950014900"},"content":{"rendered":"

The Jack A2C \/ A2-CZ PCB Control Board 9950014900<\/strong> works as the main electronic control board for compatible Jack A2 series direct-drive single-needle lockstitch sewing machines. It manages motor speed, needle positioning, automatic thread trimming, pedal response, and communication between the machine’s electronic components.<\/p>\n

This PCB works with compatible Jack A2, A2C, A2-CZ, A2-CQ and A2S series machines<\/strong>, subject to the correct board version and connector configuration. The board carries the 9950014900<\/strong> part reference and provides a replacement solution for compatible Jack A2-series control systems.<\/p>\n

\u092e\u0939\u0924\u094d\u0935\u092a\u0942\u0930\u094d\u0923:<\/strong> Check the PCB label, part number, connector arrangement, and machine model before ordering. The A2B and A2C boards belong to different PCB generations and may not interchange directly.<\/p><\/blockquote>\n

What Does the Jack A2C PCB Control<\/a>?<\/h2>\n

The main PCB acts as the electronic control centre of the sewing machine. It coordinates signals between the direct-drive motor, operation panel, foot pedal, needle-position system, sensors, and automatic thread-trimming components.<\/p>\n

The control board manages functions such as:<\/p>\n

    \n
  • Direct-drive motor speed<\/li>\n
  • Needle up\/down positioning<\/li>\n
  • Automatic thread trimming<\/li>\n
  • Foot pedal response<\/li>\n
  • Electronic machine functions<\/li>\n
  • Operation panel communication<\/li>\n
  • Sensor signals<\/li>\n
  • Solenoid control<\/li>\n<\/ul>\n

    These functions help the sewing machine maintain consistent electronic operation during regular production work.<\/p>\n

    Jack A2B vs A2C PCB Difference<\/h2>\n

    The Jack A2B and A2C PCBs represent different control-board generations<\/strong>. Both boards perform similar main-control functions, but their circuit layouts, electronic components, firmware configuration, and connector arrangements can differ.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
    \u0935\u093f\u0936\u0947\u0937\u0924\u093e<\/th>\nJack A2B PCB<\/th>\nJack A2C \/ A2-CZ PCB<\/th>\n<\/tr>\n<\/thead>\n
    PCB generation<\/td>\nEarlier A2-series revision<\/td>\nLater A2-series revision<\/td>\n<\/tr>\n
    Board label<\/td>\nA2B-25A v1.6.2<\/td>\nA2C-25A v0.3.0<\/td>\n<\/tr>\n
    Part reference<\/td>\n19510031200<\/td>\n9950014900<\/td>\n<\/tr>\n
    Circuit layout<\/td>\nEarlier component arrangement<\/td>\nRevised component arrangement<\/td>\n<\/tr>\n
    Capacitor layout<\/td>\nDifferent filter capacitor arrangement<\/td>\nUpdated capacitor arrangement<\/td>\n<\/tr>\n
    Control configuration<\/td>\nA2B-specific<\/td>\nA2C-specific<\/td>\n<\/tr>\n
    Connector arrangement<\/td>\nMay differ<\/td>\nMay differ<\/td>\n<\/tr>\n
    \u092a\u094d\u0930\u0924\u093f\u0938\u094d\u0925\u093e\u092a\u0928<\/td>\nVerify before fitting<\/td>\nVerify before fitting<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Can You Swap an A2B PCB With an A2C PCB?<\/h3>\n

    Do not assume direct interchangeability.<\/strong> The A2B and A2C boards may use different connector pin configurations, electronic circuits, and control settings.<\/p>\n

    Before you order a replacement, compare the part number, PCB model label, connector arrangement, and existing board<\/strong> with the replacement PCB.<\/p>\n

    Please verify the shape, part number, and connector configuration of your existing PCB before purchasing.<\/strong><\/p>\n

    \u092e\u0936\u0940\u0928 \u0905\u0928\u0941\u0915\u0942\u0932\u0924\u093e<\/h2>\n

    This PCB works with compatible Jack A2-series direct-drive single-needle lockstitch machines, including:<\/p>\n

      \n
    • \u091c\u0948\u0915 \u090f2<\/li>\n
    • \u091c\u0948\u0915 \u090f2\u0938\u0940<\/li>\n
    • Jack A2-CZ<\/li>\n
    • Jack A2-CQ<\/li>\n
    • Jack A2S<\/li>\n<\/ul>\n

      Always match the PCB reference and connector arrangement with your original board before installation.<\/p>\n

      \u092e\u0936\u0940\u0928 \u0905\u0928\u0941\u0915\u0942\u0932\u0924\u093e \u0924\u093e\u0932\u093f\u0915\u093e<\/h3>\n\n\n\n\n\n\n\n\n\n\n
      \u092e\u0936\u0940\u0928 \u0915\u093e \u092a\u094d\u0930\u0915\u093e\u0930<\/th>\n\u0905\u0928\u0941\u0915\u0942\u0932<\/th>\n<\/tr>\n<\/thead>\n
      Jack A2 Series Direct-Drive Machine<\/td>\nYes, subject to PCB version<\/td>\n<\/tr>\n
      \u091c\u0948\u0915 \u090f2\u0938\u0940<\/td>\n\u0939\u093e\u0901<\/td>\n<\/tr>\n
      Jack A2-CZ<\/td>\n\u0939\u093e\u0901<\/td>\n<\/tr>\n
      Jack A2-CQ<\/td>\nYes, subject to board configuration<\/td>\n<\/tr>\n
      Jack A2S<\/td>\nYes, subject to board configuration<\/td>\n<\/tr>\n
      Jack A2B PCB Replacement<\/td>\nCheck part number before replacement<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u092a\u094d\u0930\u092e\u0941\u0916 \u0935\u093f\u0936\u0947\u0937\u0924\u093e\u0910\u0902<\/h2>\n

      Main Electronic Control<\/h3>\n

      The PCB controls the major electronic functions of compatible Jack A2-series direct-drive sewing machines.<\/p>\n

      Motor Speed Control<\/h3>\n

      The board communicates with the direct-drive motor system and manages sewing speed according to machine inputs.<\/p>\n

      Needle Positioning<\/h3>\n

      The PCB manages electronic needle-position signals so the machine can stop the needle in the required position.<\/p>\n

      Automatic Thread Trimming<\/h3>\n

      On compatible machines, the control board coordinates the electronic signals required for the automatic thread-trimming mechanism.<\/p>\n

      Multi-Connector Interface<\/h3>\n

      The PCB provides multiple electrical connections for components such as the motor, operation panel, foot pedal, sensors, and solenoid systems. Match each connection with the original board before installation.<\/p>\n

      How To Replace the PCB<\/h2>\n
        \n
      1. Switch off the sewing machine and disconnect the power supply.<\/li>\n
      2. Open the control box according to the machine service procedure.<\/li>\n
      3. Take a clear photo of the existing cable connections.<\/li>\n
      4. Compare the old PCB’s part number and connector layout with the replacement.<\/li>\n
      5. Disconnect the original PCB carefully.<\/li>\n
      6. Position the replacement PCB correctly.<\/li>\n
      7. Connect each cable to its matching socket.<\/li>\n
      8. Secure the control box before reconnecting power.<\/li>\n
      9. Switch on the machine and check the display and basic functions.<\/li>\n
      10. Test the motor, needle positioning, and thread trimming where applicable.<\/li>\n<\/ol>\n

        If you are unsure about electrical connections, ask a qualified sewing-machine technician to install the PCB.<\/p>\n

        \u0905\u0915\u094d\u0938\u0930 \u092a\u0942\u091b\u0947 \u091c\u093e\u0928\u0947 \u0935\u093e\u0932\u0947 \u092a\u094d\u0930\u0936\u094d\u0928\u094b\u0902<\/h2>\n

        Is this PCB compatible with the Jack A2-CZ sewing machine?<\/h3>\n

        Yes, this PCB matches Jack A2-CZ machines that use the 9950014900 board configuration.<\/strong> Compare the part number, PCB label, and connector arrangement with your existing control board before ordering. Different Jack A2 machine revisions can use different electronic control boards.<\/p>\n

        What is the part number of this Jack A2C PCB?<\/h3>\n

        This Jack A2C \/ A2-CZ PCB carries the 9950014900<\/strong> part reference. Check the number printed on your existing board before purchase because Jack A2-series machines can use different PCB generations and configurations.<\/p>\n

        Is the Jack A2C PCB the same as the Jack A2B PCB?<\/h3>\n

        \u0928\u0939\u0940\u0902\u0964.<\/strong> The A2C and A2B boards use different PCB generations. The supplied references are 9950014900 for A2C\/A2-CZ<\/strong> \u0914\u0930 19510031200 for A2B<\/strong>. Compare the board label, connectors, and part number before choosing a replacement.<\/p>\n

        Can I use this PCB on a Jack A2 machine?<\/h3>\n

        It can work with compatible Jack A2 configurations.<\/strong> However, you should first compare your original PCB model, part number, connector arrangement, and machine revision with this board.<\/p>\n

        What does the Jack A2C main PCB control?<\/h3>\n

        The main PCB manages important electronic functions such as direct-drive motor control, sewing speed response, needle positioning, automatic thread trimming, and communication with connected control components.<\/p>\n

        Does this PCB include the complete sewing machine control box?<\/h3>\n

        No. This listing covers 1 PCB control board<\/strong>. The package does not automatically include the external control box, motor, operation panel, cables, or other machine components unless the product listing specifically mentions them.<\/p>\n

        How do I know whether I need an A2B or A2C PCB?<\/h3>\n

        Check the model marking and part number printed on your existing PCB<\/strong>. A2B and A2C boards can use different electronic configurations. If your original board carries the A2B-25A marking, verify compatibility before ordering an A2C board.<\/p>\n

        \u092a\u0948\u0915\u0947\u091c \u092e\u0947\u0902 \u0936\u093e\u092e\u093f\u0932 \u0939\u0948<\/h2>\n
          \n
        • 1 \u00d7 Jack A2C \/ A2-CZ Main PCB Control Board<\/strong><\/li>\n
        • Part Reference: 9950014900<\/strong><\/li>\n
        • Pack Quantity: 1 Piece<\/strong><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

          Genuine Jack A2C \/ A2-CZ main PCB control board with part number 9950014900 for compatible A2 series direct-drive single-needle lockstitch sewing machines. Controls motor speed, needle positioning, thread trimming and electronic machine functions. Verify your existing PCB model, part number and connector configuration before purchase.<\/p>","protected":false},"featured_media":645789,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_yoast_wpseo_focuskw":"Jack A2C A2-CZ PCB Control Board 9950014900","_yoast_wpseo_title":"Jack A2C A2-CZ PCB Control Board 9950014900 %%sep%% %%sitename%%","_yoast_wpseo_metadesc":"Buy Jack A2C A2-CZ PCB Control Board 9950014900 for compatible A2 series direct-drive machines. Check part number and connectors before ordering.","_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_bctitle":"","_yoast_wpseo_canonical":"","_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_twitter-title":"","_yoast_wpseo_twitter-description":""},"product_brand":[967],"product_cat":[775,1103,765],"product_tag":[4135,3152,976,4136,4134,4140,4137,4133,4132,4138,3706,3271,3130,3132,4139],"class_list":["post-645602","product","type-product","status-publish","has-post-thumbnail","product_brand-jack","product_cat-a2-a2s-a3-a4-a5-spare-part","product_cat-sewing-machine-motherboard-and-chip","product_cat-jack-sewing-machine-spare-parts","product_tag-9950014900-pcb","product_tag-direct-drive-pcb","product_tag-industrial-sewing-machine-parts","product_tag-jack-a2-control-board","product_tag-jack-a2-pcb-board","product_tag-jack-a2-spare-parts","product_tag-jack-a2-cq-pcb","product_tag-jack-a2-cz-pcb","product_tag-jack-a2c-pcb","product_tag-jack-a2s-pcb","product_tag-jack-sewing-machine-pcb","product_tag-lockstitch-machine-pcb","product_tag-sewing-machine-control-board","product_tag-sewing-machine-electronic-parts","product_tag-single-needle-machine-pcb","first","instock","sale","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"\nJack A2C A2-CZ PCB Control Board 9950014900 - Stitch Partner<\/title>\n<meta name=\"description\" content=\"Buy Jack A2C A2-CZ PCB Control Board 9950014900 for compatible A2 series direct-drive machines. 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