Sharp EL-6990 Auto Power Off Function, Backlight, Adjusting the LCD Contrast, Memory Check

Page 4

Auto Power Off Function

When none of the keys has been pressed for approximately 7 minutes, the Organizer automatically turns the power off to save the operating battery.

Backlight

The Backlight allows you to view the display and use the Organizer even in low-light conditions. Pressing zonce illuminates the display for as long as you continue to use the Organizer; if no key activities are detected within the specified interval, it will be turned off automatically.

•To turn the Backlight off, press zagain.

•The Backlight may remain on for less than the preset interval or it may not function if the battery level is low.

•The Backlight does not function in the PC Link mode.

Do not use the Backlight unnecessarily.

•Since the Backlight drains power from the backlight battery, excessive use of the Backlight will significantly reduce the life of your battery.

Setting up the Backlight

• The Backlight can be set to turn off at a specified interval.

1.Press f!, select "BL TIME SET" by using kor m, and press x.

2.By using kor m, select a desired interval (10, 20, or 30 seconds) and press x.

Adjusting the LCD Contrast

1.Press f!, select "LCD CONTRAST" by using kor m, and press x.

2.Press kor mto darken/lighten the display (within 1 through 8).

3.When done, press x.

Turning the key sound On and Off

1.Press f!, select "KEY TONE" by using kor m, and press x.

2.Select the key sound function on/off by using kor m.

3.When done, press x.

Memory Check

Press f!, select "MEMORY CHECK" by using kor m, and press x.

The memory check display will appear and indicate the remaining memory space.

The previous screen will appear after 2 seconds.

2

Page 3 Page 5
Image 4
Page 3 Page 5
Contents EL-6990 Page Using the Organizer for the First Time If a malfunction occurs under abnormal conditionsAuto Power Off Function Adjusting the LCD ContrastBacklight Turning the key sound On and OffDisplay Symbols and Part Names Display SymbolsPart Names Key AssignmentsEntering Characters Moving the CursorEntering Characters Making CorrectionsClock Mode PrecautionsSetting the Home Clock Built-in Calendar and ClockSelecting the date format Default Month-Day-Year Setting Daylight Saving Time DST Summer time ON/OFFHome NE W Y ORKAlarm Turning the Daily and Hourly Alarms ON/OFFSetting the Daily Alarm time AlarmTelephone Mode BUS I Ness Pers Onal Sear CH NA ME? Others Search NAME?Entry BUS I Ness Search NAME?RST Name Company ExampleCalendar Mode SearchNavigating the Monthly Calendar Display Last Name Alphabetical SearchSchedule Mode Directly go to the target monthAlarm no Alarm YESSequential search Anniversary Mode Date searchTo Do Mode To doDescr I PT I on Sequential searchDone Completed Items Memo Mode Memo SEARCH?Direct Search 2AB3 4 5 6Expense Mode Amount Payment CheckExpense Report Category AtegorySummary Report RecallPayment Check Rece I PT YES ExpenseEditing Listings Deleting ListingsEdit the Category EditWord Translator Mode ENG SPACAL Culat or Calculator ModeExample Operation Display Conversion Mode Currency Conversion ModeSetting a new currency conversion rate Currency CAD USD RATE=Convert metric unit Metric Conversion ModeCurrency conversion Registering a Password Changing the PasswordAccessing listings Secret FunctionGame Mode Blackjack Twenty-oneBlackjack 32K4Alpha Attack Alpha Attack Level 0 EY3KWBattery Replacement Operating Battery Replacement Battery replacement timeBacklight Battery Replacement Batteries used Type Model Quantity UseSpecifications Replacing the batteriesCurrency/Unit conversion mode Game modePower consumption Power supplyAppendices Exchanging Data with a PCMemo Canada Sharp Corporation

EL-6990 specifications

The Sharp EL-6990 is a versatile scientific calculator that is particularly well-suited for students, engineers, and professionals who require advanced calculations for their daily tasks. It is known for its robust features, user-friendly design, and innovative technology, making it an invaluable tool in a variety of settings.

One of the primary features of the Sharp EL-6990 is its large 2-line display that provides a clear view of calculations and results. The dual-line feature allows users to input equations and see the results simultaneously, enhancing the user experience and reducing errors during complex calculations. The display is also capable of showing fractions, equations, and various other functions in a format that is easy to understand.

The calculator is equipped with a comprehensive range of built-in functions, including more than 400 scientific and statistical functions. This includes everything from basic arithmetic operations to advanced statistical calculations, such as standard deviation and regression analysis. Furthermore, the EL-6990 supports complex numbers and can perform operations with them, which is particularly beneficial for higher-level mathematics and engineering courses.

In addition to its wide array of mathematical functions, the Sharp EL-6990 also features programmable capabilities. Users can store previously calculated formulas and equations for quick access, allowing for increased efficiency when working on repetitive tasks. This programming function makes it a popular choice among both students and professionals who need to streamline their workflow.

The EL-6990 incorporates Sharp’s proprietary WriteView technology, which enables users to view and edit expressions in a format that replicates traditional mathematical notation. This feature makes it easier for users to input complex formulas and understand the relationship between inputs and outputs.

Another notable characteristic of the Sharp EL-6990 is its portability. Designed with a compact body, the calculator is lightweight and easy to carry, making it a convenient companion for students on the go. Its durable construction and user-friendly interface further enhance its appeal, making it suitable for extensive daily use.

In conclusion, the Sharp EL-6990 is a powerful scientific calculator, offering a range of features and technologies tailored to meet the needs of students and professionals alike. Its clear display, extensive function library, programmability, and innovative WriteView technology set it apart as a reliable choice for anyone looking to enhance their computational efficiency. Whether for classroom use, fieldwork, or extensive calculations, the EL-6990 is engineered to deliver performance and reliability.
Top Page Image Contents