Mitsubishi J3-C20C is a servo-drive control PCB assembly with processing ICs, signal connectors and a fitted digital-display daughterboard. The supplied photographs show J3-C20C along the upper board edge and J3-C20 in another identification area on the same PCB.

The photographed board is also marked BC386A670G51, with a separate A marking nearby. Use J3-C20C as the primary enquiry reference and include all additional markings when matching a replacement. Confirm the complete drive model and required supply scope before ordering.

J3-C20C Product Information

J3-C20C vs. J3-C20 Board Markings

Both references are visible on this photographed assembly. J3-C20C retains the additional C in the upper marking, while J3-C20 appears in the lower identification area. Record both references together with BC386A670G51. Their presence on this board does not establish interchangeability between all J3-C20, J3-C20A or J3-C20C versions.

Connector Layout and Display Assembly

Visible connector labels include CN1A, CN1B, CN2, CN3, CN5 and CON1. The photographs also show the processing components and an upright digital-display daughterboard. Compare connector positions, keying, mounting points and display-board configuration with the original. Confirm whether the display daughterboard is included in the quotation.

Configuration and Replacement Checks

Provide the original drive nameplate and clear photographs of all PCB and revision labels. Before removal, have a qualified technician confirm any parameter backup or restoration requirements for the exact drive. Isolate the equipment, follow its discharge procedure and use anti-static protection when handling the assembly.

Testing, Warranty and Dispatch

REACO CNC provides actual product photographs and a testing video before shipment. The supplied condition and applicable test scope are confirmed for the quoted board. Confirmed stock normally ships within 1–2 business days after payment. Warranty is 1 year for new/refurbished items and 3 months for used items.

Related resources: Mitsubishi PCB boards and Mitsubishi servo drives.