Fanuc A20B-3900-0042
Fanuc DRAM memory plugin card. This 4MB fits onto the main board for various Fanuc i series controls. A20B-3900-0042 board works with early Fanuc i series model A control systems and other series variants.
Offering exchange, testing and repair of this important 4MB DRAM module that sits within the first generation of Fanuc i CNC controllers, that allows the main card to access data quickly. Full test, inspection and repair service are available for the A20B-3900-0042 board as well the complete control system it belongs in.
Common faults that arise with bad DRAM is the dreaded 916 DRam parity alarms.
Summary:
Usually available to ship same day on exchange orders fully tested with warranty. If unsure if your memory PCB is indeed faulty then ship your board in for test, inspection.
Interested in learning more? Contact us if you wish to discuss options for exchange, repair or testing of your A20B39000042 PCB at +49 (0) 7158 984130 or by email. We’d be happy to answer your questions!
The 4MB DRAM memory pcb is always in group stock and normally in stock in Germany.