Lamp Door Open Problem on Toshiba 52HM84

While replacing the ballast, I inadvertently "disconnected" the Lamp Door Open Sensor wires from "wherever" they connect. This is a white and blue wire set with white pastic connector. The service manual schematic is no help, and I was never any good at pin-the-tail-on-the-donkey, so any help would be greatly appreciated. The set is a 52HM84. Toshiba Customer Support was no help. Naturally, the unit will not power on with this open connection.
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