CITIZEN MG0000 - Manual (Page 34)

C. Flash Memory Status Display
This display provides a general indication of the amount of flash memory available. In
addition, garbage collection can also be performed during this display by pressing one of
the buttons.
<Reading the Bar Graph>
a: Black segment: Area in which data has been written
and then deleted.
/The area corresponding to this segment is transformed
into available memory by performing garbage collection.
b: Gray segment: Area currently used by files.
/This segment becomes larger the greater the amount of
diving data, daily graphic data and so forth.
c: White segment: Area of available memory.
D. Garbage Collection Operating Procedure
Garbage collection begins when button (C) is pressed for at least 2 seconds during the
flash memory status display.
• During the garbage collection operation, an alarm sounds and "G.C." is displayed on the
display. When garbage collection is completed, "Done" is displayed on the display.
• Garbage collection cannot be performed when "G.C." has changed to "NG" on the
battery charge indicator or when the water sensor has been activated. "Fail" is displayed
on the display at this time.
<General Reference for Performing Garbage Collection>
Try to perform garbage collection when the black segment on the flash memory status display is
larger than the white segment (available memory). Garbage collection consumes considerable
power. For this reason as well, in order to ensure that flash memory is used efficiently, it is
recommended to perform garbage collection whenever the watch is charged (fully charged).
* In the case "Error" is displayed during the garbage collection operation, there may be an error in
the flash memory. After formatting flash memory by referring to the section on " All Reset
and Formatting Flash Memory", try repeating the garbage collection operation. If "Error" is still
displayed, this indicates that the watch has malfunctioned. Please contact a Citizen Service
Center to request repairs.
* Garbage collection is only performed to organize the contents of flash memory. There is no
risk of deleting watch settings or diving logs as a result of performing garbage collection.
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a
b c