ITEM SPECIFICSBrand: BrotherMPN: D004YY001 (Matches B57U244-3 / MC0A5B80017182)Type: Main Logic Board / Motherboard & FAX Card Sub-Assembly LotCompatible Models: Brother Business Smart Plus MFC-J6935DW, MFC-J6930DWOnboard Ports: USB Type-B Printer Port, RJ-45 LAN Ethernet, Dual RJ-11 Phone/Line FAX Jacks
ITEM DESCRIPTIONUp for sale is a genuine, original OEM Brother Main Logic Motherboard and matching FAX Communication Interface Sub-Board electronic assembly lot. This core network processing platform was carefully uninstalled from a clean, non-smoking office environment teardown.
Part Numbers and Component Identifiers:
Main PCB Silkscreen Stamped ID: B57U244-3
Primary Barcode Tracking Sticker Number: MC0A5B80017182
Brother Assembly Exchange Part Number: D004YY001
Component Lot Identifier Code: 8B01E
Internal Secondary Paper Chassis Label: D004S4B
Compatible Printer Models:
Condition: Used, genuine OEM hardware component pull. The green substrate circuit boards are in excellent structural condition with zero cracked corners, broken connector guide walls, or bloated capacitors. All surface solder paths and copper contacts are clean, bright, and completely free of corrosion. This listing includes both the primary system control logic board and the companion dual-port phone network line interface daughterboard complete with its white ribbon connector tail exactly as pictured in the listing photos.
This board lot is the direct diagnostic repair solution to fix a premium multi-function printer suffering from a completely dead power-on state, fried communication ports, unrecognized paper tray sensor errors, or an unresolvable main system boot freeze.
Fast shipping! These highly static-sensitive circuit boards will be fully enclosed inside professional anti-static ESD shielding bags, wrapped securely in dense protective bubble layers, and shipped inside a rigid box to guarantee a completely safe arrival to your address.
