PG-M25XE (serv.man38). Intermittent start-up shut down (locks up) - Sharp Projector Technical Bulletin (repair manual). Page 15

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LV064
Sharp Electronics (UK) Ltd., Technical Services Group
(13)  The input box appears in the dialog box. Enter the COM port number you
wrote down in the previous step. And then click “OK”.
(14)  It takes about 80 minutes for transferring data (It varies depending on the PC
performance).
The progress of data transfer is displayed in the dialog box and the LAMP
indicator blinks in green during this period. After transferring data, it takes
about one more minutes to finally update the firmware. Wait until the update is
completely finished.
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