Vizio V555-J01 Main Board – 756TXKCB02K074 / 715GB692-M0E-B00-004D. Restore full functionality to your television with the Vizio V555-J01 Main Board (Part #756TXKCB02K074 / 715GB692-M0E-B00-004D / CBPRKQ3KAP). This main board serves as the central processing and control unit for the TV, managing video processing, HDMI inputs, audio output, smart features, and overall system operation. If your Vizio TV is experiencing issues such as no signal, HDMI ports not working, frozen smart functions, or startup problems, replacing the main board is often the most effective repair solution. This New Open Box main board has never been installed in a TV but may have been removed from original packaging for inspection, inventory, or storage. Perfect for TV repair technicians, electronics repair professionals, refurbishers, and DIY TV repair projects. Original Vizio Replacement Main Board. Compatible with Vizio V555-J01 TVs. Handles HDMI, Smart TV Processing & Video Control. Multiple Part Numbers for Compatibility. Ideal for TV Repair and Refurbishment. Factory Electronics Component Quality. Video processing / system control. HDMI, USB, RF tuner, AV inputs. LED / Smart TV. Television repair and replacement. Always verify part numbers on your original board before ordering. Fixing HDMI input issues. Restoring smart TV functionality. Replacement for faulty main boards. All proceeds from these sales fund our Apprenticeship and Job Opportunity Programs, providing aspiring IT professionals with hands-on training, real-world experience, and pathways to long-term careers.