User manual
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 Photo Operation
 After loading a GPS card with photo files, touch PHOTO icon in the photo page of
 the source menu to enter photo mode and pop up the photo interface as follows:
 : to enter the GPS card path interface.
 : to enter.
 : to exit to photo interface.
SDMEM : to enter the data folders list step by step and finally enter photo list. 
[..]: To return back to previous interface.
Slide bar: to slide the photo list downward/upward or rightward/leftward.
File : to enter photo interface again and display the photo of this file.
 : to zoom out the current photo.
 : to display the current photo with the scale of 1:1.
 : to zoom in the current photo.
 : to display previous photo with the scale of 1:1.
 : to display next photo with the scale of 1:1.
 : to enter full-screem mode.
 : to exit the photo interface to the tools page of the source menu. 
 Reader Operation
 After loading a GPS card with e-book files its extention name are txt, touch 
 READER icon in the tools page of the source menu to enter Reader mode and 
 pop up the reader interface as follows:
Photo interface
GPS card path interface
Photo list
Reader interface
E-book list










