(04-17-2012, 08:33 PM)greatunclebill Wrote:(04-17-2012, 07:35 PM)Sleepster Wrote:(04-16-2012, 05:56 PM)Sleepster Wrote: I've heard that technicians can set the time and update the firmware with a special cable that connects a laptop to a socket in the botom of the machine. I see no such socket, though! There's a small removeable panel surrounding the slot where the SD card is inserted, but I see no socket behind that panel, either!
I think I discovered something ... found this in the User Manual:
Before operating the device, ensure that the SD card cover is replaced whenever any of the accessories such as the Link Module or Modem are not installed.
My guess is that this "Link Module" plugs in somehow behind that SD card cover, and that is how a tech sets the time on the machine.
here's what i have: my unit came from an on-line dealer in washington (pacific time) in an unopened factory sealed box. i live in alabama (central time). the thing that puzzles me is how the guy in the final inspection station in the factory would know to set my machine to central time when it was going to a dealer in washington. the second question is what happens if i move to a new time zone? if the cpap time is preset to my time zone, the time would be screwed up if i moved to washington, 2 time zones away. well, i download my data to 2 laptops every morning and the time is always correct. so tonite one of my desktop's moved to washington for a couple minutes. i set the computer clock to pacific time, downloaded and installed sleepyhead and set my time in sleepyhead to pacific time. the result was the software thought i was in washington and recorded all data 2 hours earlier as if i was in washington. i still think the internal clock is set to gmt as i've heard. the tech messing with the clock, if he does, could in fact be him just activating the clock.
So what I gather from your post is, that the software is getting the time and date from the laptops the data is loaded to?