you will feel a double vibration if the battery is recharging. The player can also be used while
recharging but in this case the LED will glow steady instead of blink. To obtain battery and recharge
status, press and hold the Confirm key. You can also obtain the battery and recharge status when
you press the INFO key (key 0). A full recharge takes up to 5 hours on AC power. Computers supply
different levels of power or perhaps no power at all on their USB ports depending on the computer
and its configuration. Therefore, when recharging from a computer USB, the Trek will likely take
longer to recharge, or possibly not recharge at all, depending on the USB power supplied by the
computer.
You may safely use a micro USB AC adapter other than the supplied power adapter. HumanWare
recommends a 1 amp USB power adapter. Adapters with less power will likely require more than 5
hours to fully recharge the battery.
When the player is operating on battery and left in pause mode for more than 30 minutes, it will
shut Off automatically to save the battery unless you are in Orientation mode.
Important: It is normal for the battery to become warm during recharging. Therefore, it is
recommended not to charge the battery with the player near a heat source or within the optional
leather carrying case.
Note: The player's model and serial number can be found in the battery compartment. This same
information can also be obtained by pressing INFO (key 0).
1.2.8 NLS Book Cartridge (United States only)
Your Trek can play the special book cartridges supplied by the National Library Service for the Blind
and Physically Handicapped (NLS) in the United States providing you are eligible to receive NLS
books and your Trek has been authorized to play them. Please contact your local library for more
information on NLS service eligibility. The book cartridge is a USB flash device and can be played
on your Trek by connecting it to the micro USB port on the bottom edge of the player using the
included short USB cable.
1.2.9 Copying Books from USB Devices or NLS cartridges
You may copy DAISY or MP3 books from a USB flash device to the Trek’s SD card. You may also
copy books from a book cartridge used by the NLS in the United States. Connect the USB flash
device or NLS cartridge to the Trek using the short USB cable. To copy, press key 3 while the book
is playing or stopped. The progress of the copy operation will be announced regularly until the copy
is completed. This copying process can be cancelled at any time by pressing the Star key. If any
special character (\, /, :, *, <, >, |, .) is in the book title, it will be replaced by "_". You can play or
copy USB flash media only when the Trek is operating on battery power because the USB port
cannot be connected to a power outlet and the flash media at the same time, so be sure your
battery has a good charge before copying the USB book.
1.3 Power Button
1.3.1 Turning the Player On and Off
To turn the player On, press and hold the Power key, which is located on the left side of the player,
near the top corner. You will hear a beep and a welcome message, and feel a vibration.
To turn the player Off, press and hold the Power key again. You will hear two beeps and feel 2
vibrations indicating the player is powering Off. You must wait about 30 seconds before you can
again power on the Trek.
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