Mitsubishi HN768 is an E70 CNC main control PCB offered by REACO CNC for replacement and repair enquiries. The photographed board is marked BN638A735G51A and shows HN768 identification, with an additional HN768C marking beside the signal connector area.

The assembly features a two-digit display, two blue rotary switches, a LAN connector, metal-shell signal connectors and long internal board connectors. Match the complete markings and original control-unit nameplate before ordering.

HN768 Product Information

Source-Checked E70 Application

Mitsubishi's E70 Series Connection Manual, section 1.2 identifies HN768 as the main card in the FCU7-MU528 configuration, with FCU7-MU558 shown as the former unit reference. Confirm the photographed hardware version and software requirements against your exact control unit.

HN768, HN768C and Board Identification

Record HN768, the connector-edge HN768C marking and BN638A735G51A when comparing replacements. Retain the final A in the printed PCB number. Record inspection stickers separately. A shared PCB number does not establish interchangeability with another HN76x board.

Connector and Component Layout

Visible labels include LAN, CG71, MENUKEY, RIO1, ENC, SKIP and SIO. Compare connector positions, keying, contacts and internal board connections with the original. The photographs also show a tall electrolytic capacitor, blue-topped inductors, mounting spacers and the display-and-switch area. Follow the exact unit manual for wiring and switch settings.

Fitment Confirmation and Supply Scope

Send both sides of the original PCB, the complete unit nameplate and fault information. Confirm memory-card, software and data-backup requirements with your technician. Supply covers the quoted PCB; memory cards, additional boards, cables and a complete control unit require separate confirmation. A testing video is provided before shipment; confirm condition, availability and test scope.

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