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File name : HDB0R100704_English_text_071113
version : 07/10/15
General Guide
Turning on or off
To turn the calculator on, press [ ON ]; To turn the calculator off,
press [ 2nd ] [ OFF ].
Battery replacement
SR-270X is a dual power system which is powered by one
button-type battery (G13 or L1154) and a solar cell. If the display
becomes dim and difficult to read, the batteries should be replaced
as soon as possible.
To replace batteries:
1) Remove the screw and the battery compartment cover.
2) Remove the old battery and insert a new one with polarity in
correct directions, then replace the cover.
3) After changing battery, please use a pointed object to press the
reset hole in the rating label area located at the rear of this unit.
Auto power-off function
This calculator automatically turns off when not operated for
approximately 3~9 minutes. It can be reactivated by pressing [ ON ]
key and the memory, settings are retained.
Reset operation
If the calculator is on but you get unexpected results, press [ 2nd ]
[ CLR ] in sequence. A message appears on the display to confirm
whether you want to reset the calculator and clear memory contents
after selecting [ 3 ].
[ 3 ]
Reset All?
[ = ] : Yes
[AC] : Cancel
Clear?
1: Setup 2:Mem ory
3: All
To clear all variables, pending operations, statistical data, answers,
all previous entries, and memory, please press [ = ]; To cancel the
reset operation without clearing the calculator, please press [ AC ].
If the calculator is lock and further key operations becomes
impossible, please use a pointed object to press the reset hole at the
same time to release the condition. It will return all settings to default
settings.
Contrast adjustment
Pressing the [
W
] or [
X
] following [ 2nd ] [ SET UP ] [
T
] [ 5 ]
(
W
CONT
X
) keys in sequence can make the contrast of the screen
lighter or darker. Holding either key down will make the display
become respectively lighter or darker. After finishing your setting,
press [ AC ] to exit.
3


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