ARCHOS AV420 - Manual (Page 73)

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• On older Win98SE computers, if there is a line “lastdrive=” in the
config.sys file, make sure that it is “lastdrive=z”.
• If the Files Allocation Table (FAT) gets corrupted, the AV400 may not
show up in Windows XP for over one minute, and then it comes up as
local drive. Use DOS Utility ChkDsk as shown below.
• Windows ® XP may recognize the AV400 hard disk but yet not assign a
drive letter to it. Right click on My Computer and select Manage. Then
select Storage, then Disk Management. Within this window you may
see the hard drive and be able to assign a drive letter by right-clicking
on the hard disk, and selecting the option Change drive letter and
paths…
Problem: What do I do if I try to disconnect via the green arrow but keep
getting “The device ‘Generic Volume’ cannot be stopped now. Try stopping
the device again later.”
Answer: Shut off any program that might be accessing data on the
AV400, including Windows
® Explorer. If this does not work, shut down all
programs, wait 20 seconds, then try the green arrow one or two times
again. If this does not work, you should shut down the computer and
disconnect the USB cable once the computer is off.
21.2
Charging and Power issues
You do not need to fully discharge the batteries before recharging them.
Problem: You do not need to fully discharge the batteries before
recharging them.
Answer: The specifications are under the condition that the screen
backlight goes off after 30 seconds (for music) and the user does not
access the machine, it just sits and plays. If you get significantly less time
from a full charge, call our technical support hot-line.
21.3
AV400 locks up (freezes operation) or Stops
Problem: The AV400 locks-up. None of the buttons work.
Solution: If the ‘ Lock buttons’ is set, none of the buttons respond.
Hold down the left function button for three seconds to turn off the ‘ Lock
buttons’ function. A freeze up could also be caused by electrostatic
phenomena. That is, static electricity has temporarily knocked out the
AV400. Hold down on the STOP/OFF  button for 15 seconds and the
AV400 will shut off. Restart it normally now.