Monitor Main + Power + 5-Button IR Board Set, Tested Working, SE4AT01/02/03001 For Sale

This is the internal electronics — main/logic board, power supply board, and separate 5-button OSD/IR control board — pulled as a complete set from an LCD monitor, still mounted in its original metal mounting bracket. Part numbers stamped on the boards: main board SE4AT01001, power board SE4AT02001, button/IR board SE4AT03001 (board-level part number 4H.4AT03.A00), all three carrying the E227809 HXF-S 94V-0 safety certification. This board family (both the E227809 cert marking and the \"4H.xxxx03.A00\" button-board numbering scheme) shows up across board sets from more than one monitor brand — exact source monitor model not confirmed. The button board has 5 tactile buttons (power + 4 OSD/menu controls) and an IR receiver window, and connects to the main board by a ribbon cable.

This set is for monitor owners or repair techs who\'ve matched these exact part numbers to their own broken unit (power-won\'t-turn-on, no-picture, or dead-buttons/OSD symptoms) — check your own board\'s printed part number against SE4AT01001 / SE4AT02001 / SE4AT03001 before buying.

Tested and confirmed working prior to removal — these boards were only pulled because the monitor\'s screen was cracked, not for any electrical fault. Visually inspected — boards are intact, no visible burns, corrosion, or bulging capacitors, connectors and ribbon cable present. Please review all photos carefully and compare your own unit\'s part numbers before purchasing.

Owners of a monitor with a matching SE4AT01001 / SE4AT02001 / SE4AT03001 board set troubleshooting a dead-power, no-picture, or non-responsive-button/OSD issue, and repair techs sourcing exact-match replacement boards rather than guessing compatibility.

See our other board and electronics listings — more monitor, phone, and networking gear parted out and listed individually.

No returns accepted — sold as-is, tested and working at time of pull but not guaranteed after removal/shipping.