Adjusting Screen Contrast; Reset Function - Sharp EL-9900 Operation Manual

B
asic operation
Guide to key use
Press to use secondary functions (in
yellow).
Press to use the alphabet keys (in violet).
Example:
x
2
To select " ":
x
-1
To select " ":
To select F:

Adjusting screen contrast

• The contrast adjust screen will appear when pressing
.
Press to darken contrast.
Press to lighten contrast.
Displayed as follows:
Displayed as follows:
SET UP menu
There may be differences in the results of calculations
and in displayed content, as this calculator has
detailed set up menus involving options such as angle
units and display formats.
The set up menu screen will appear upon pressing
.
Confirm the current
settings or change
the settings using
the cursor keys.

Reset function

1) When trouble occurs
Press to enter the reset mode.
• Use this function (
settings to the default value or to delete all data.
2) All RESET operation
• If trouble still occurs, proceed as follows:
1. Press
2. Open the battery cover.
3. Press the RESET switch in the battery
compartment.
4. Place the battery cover back on.
5. Press .
• Returns to the initial display.
CAUTION
If you press in step 5, it will delete all data stored
in the calculator.
or ) to return all
to turn the calculator off.
3