User's Manual

N5603‘s usermanual
第 64 页
The result from calculation is shown in the bottom line.
A new calculation shall be made by pressing the key delete to delete first the content in edit box and
entering new digits &calculation symbol, or you may press the key return to exit calculator box.
The key Pwr is used whereby to cancel the entering of digits or symbols and to exit calculator box and
return to the previous box are required. Or for the same purpose, the key return needs to be pressed to exit
calculator box after the deletion of contents is made under edit box.
In case that the calculation of any digit divided by zero produces a result other than zero, or the result is
above 999999999 or below -999999999，the prompt “E” shall occur to indicate an error.
12.2.6 Stopwatch
The stopwatch box is shown on the screen of cell phone by selecting the option stopwatch menu.
The time starts from zero by pressing the key start，may be stopped by pressing the key pause，and may
continue by pressing the key continue ; or may return to zero by pressing the key zero (in such case, time
may be re-started), or may exit from stopwatch box by pressing the key return .
After the start up of timing, press the key Pwr to return to normal standby mode and enter other working
states, and the timing operation on stopwatch may continue after entering this box again.
12.2.7 Countdown
This function is mainly applicable to the prompt operation at given time. Such as：dial up after ten minutes,
etc. It provides no content for prompt, and easy for operation.
The countdown may be used in two methods：
Method1: select the menu option tool － countdown under accessory box after entering main menu, the
cell phone displays the countdown state, whereby the countdown time may be entered, such as：one
hour plus twenty minutes denoting eighty minutes；forty five denoting the prompt after forty five
minutes. After fixing the time, press the key ‘start’ for the startup of countdown，you may also press the
key return to return to previous menu，with time duration not included.
Method 2：This function may be activated by simply pressing the minute values under normal standby mode,
and the key option for the selection of menu option countdown start.
For example：if you need to be reminded after forty five minutes, just press the digit key ”45” under normal
standby mode, then the left function key to pop up the function menu. After the selection of countdown start
option，the cell phone will prompt：“countdown starts up！”
The cell phone will prompt in 45 minutes that the set time is available.
Note：the way for prompt is the same as that for alarm, relevant information as shown in section 12.2.1.2.
Note：
•Enter values for minutes;
•Values for minutes shall not exceed 99（ countdown values entered for minutes under standby
mode）.