Well done!!! I found what I need to have, indeed!
Furthermore, due to my hobby is repairing vintage equipments, I added this web site in my desk toolbar because I have in mind to search further service manuals. Thanks a lot www.owner-manuals.com !
Regards, Maurizio
Great Manual. It was exactly what I was looking for
Text excerpt from page 27 (click to view)
Chapter 4
Press and hold the projector�s [Input] and [Keystone] keys, and then plug in the power cord and turn on Main power switch. The projector starts the Firmware upgrade, [LAMP], [TEMP] and [FAN] LED�s are always RED blinking.
The computer begins downloading the upgrade files to the projector. The process may take several minutes.