ISO-certified repairs with a 2-year warranty — technician-verified quotes within 24 hours, nationwide.
Product Description
The Fanuc A20B-3900-0220 is a robust and essential printed circuit board assembly integral to the reliable operation of Fanuc CNC systems. This meticulously engineered board serves as a critical interface, facilitating seamless communication and control within the machine. It manages vital functions including axis control, spindle operation, and feedback processing, ensuring precise and coordinated movements. The A20B-3900-0220 is constructed with high-quality components and undergoes rigorous testing to guarantee optimal performance and longevity in demanding industrial environments. Its dependable design contributes to minimized downtime and maximized productivity, making it a cornerstone for maintaining the efficiency and accuracy of your Fanuc-controlled machinery. This board is a direct replacement part, ensuring compatibility and straightforward integration into existing systems, thereby restoring functionality and upholding the operational integrity of your equipment.
Is Your Device Showing These Signs?
A20B-3900-0220 is a FANUC Main Board, and common failures include resolving issues with the SRAM, ROM, and CPU. We frequently address problems stemming from corrupted memory, requiring data restoration or replacement. Axis control malfunctions, often due to faulty servo amplifier communication, are repaired through component-level troubleshooting. Backplane connector damage and issues with the PMC result in communication errors and require connector repair or board replacement. Overheating and power supply instability are also addressed by replacing thermal compounds and rectifying power circuit issues.
Technical specifications
The Fanuc A20B-3900-0220 is a robust and reliable main printed circuit board (PCB) engineered for seamless integration within Fanuc Series 30i/31i/32i CNC systems. This essential component serves as the central processing unit, orchestrating critical functions including program execution, axis control, and communication with peripheral devices. The A20B-3900-0220 features a high-speed processor, ample memory capacity for complex machining programs, and advanced diagnostic capabilities for efficient troubleshooting. Its durable construction and rigorous testing ensure dependable performance in demanding industrial environments, contributing to enhanced machine tool accuracy, productivity, and overall system stability. This PCB is a vital element for maintaining optimal CNC machine operation and minimizing downtime.
Our Repair Process for the
A20B-3900-0220
Our repair process for the A20B-3900-0220 FANUC Main Board begins with a comprehensive diagnostic assessment to pinpoint failures within the SRAM, ROM, or CPU. Corrupted memory issues are resolved through meticulous data restoration or component replacement as needed. Axis control malfunctions, traced to faulty servo amplifier communication, undergo component-level troubleshooting and repair. Backplane connector damage and PMC-related communication errors necessitate connector repair or complete board replacement. Overheating and power supply instability are rectified by replacing thermal compounds and repairing power circuit issues, ensuring optimal board performance and reliability.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY