Sharp EL-6990 operation manual Specifications, Replacing the batteries

Page 31

Replacing the batteries

•Make sure the power is turned off before replacing the batteries.

•Do not press ountil the battery replacement procedure is completed.

1. Press oto turn the power off.

2. Loosen the screw (turn counterclockwise) and remove the battery holder cover on the back of the unit.

3. Remove one used battery using a ball-point pen or similar object.

• Do not use a mechanical pencil or sharp pointed object.

4. Install one new battery with the positive side

(+) facing up.

5. Repeat step 3 and 4 for replacing both batteries, if necessary.

6. Replace the holder cover and secure with the screw.

7.The power will be turned on 2 to 3 seconds after ois pressed.

8.Set the clock to the correct time.

Caution:

•Clock settings and/or other settings and listings may be lost when batteries are removed for a long time. Replace the batteries as quickly as possible.

•Make sure to confirm all settings are set correctly after replacing the batteries.

Specifications

Model:

EL-6990

Product name:

Electronic Organizer

Display:

14 columns x 5 lines with the Backlight

Memory capacity:

256 KB Flash memory

User area:

Approx. 250 KB

 

A) In case of telephone listings only:

 

Max. 290 listings

 

B) In case of the other listings only:

 

Max. 2000 listings

 

Listings can be stored until the total of both

 

types (A and B) reach 250 KB.

Clock mode

 

Accuracy:

±60 seconds/month (at 25°C/77°F)

Display:

Year, month, day, day of the week, hour, minute,

 

second, AM/PM, city name

Clock system:

12-hour/24-hour format (switchable), 3 types of

 

date format (switchable), World clock function,

 

daylight saving time/summer time display

 

function, daily/hourly/schedule alarm function

Telephone mode:

Entry and recall of Last name, First name,

 

Company, Home#, Office#, Fax#, Mobile#,

 

E-mail, Address, City, State, Zip code, Country,

 

Note

Calendar mode:

From Jan.,1950 to Dec., 2150, Confirmation of

 

the Schedule, To Do, and Anniversary mode

 

entries can be made by the indication marks

 

seen on the right side of the date

29

Page 30 Page 32
Image 31
Page 30 Page 32
Contents EL-6990 Page If a malfunction occurs under abnormal conditions Using the Organizer for the First TimeTurning the key sound On and Off Auto Power Off FunctionAdjusting the LCD Contrast BacklightDisplay Symbols Display Symbols and Part NamesKey Assignments Part NamesMaking Corrections Entering CharactersMoving the Cursor Entering CharactersBuilt-in Calendar and Clock Clock ModePrecautions Setting the Home ClockNE W Y ORK Selecting the date format Default Month-Day-YearSetting Daylight Saving Time DST Summer time ON/OFF HomeAlarm AlarmTurning the Daily and Hourly Alarms ON/OFF Setting the Daily Alarm timeBUS I Ness Pers Onal Sear CH NA ME? Others Search NAME? Telephone ModeExample EntryBUS I Ness Search NAME? RST Name CompanyLast Name Alphabetical Search Calendar ModeSearch Navigating the Monthly Calendar DisplayDirectly go to the target month Schedule ModeAlarm no Alarm YESSequential search Date search Anniversary ModeSequential search To Do ModeTo do Descr I PT I onDone Completed Items 2AB3 4 5 6 Memo ModeMemo SEARCH? Direct SearchAtegory Expense ModeAmount Payment Check Expense Report CategoryExpense Summary ReportRecall Payment Check Rece I PT YESEdit Editing ListingsDeleting Listings Edit the CategoryENG SPA Word Translator ModeCAL Culat or Calculator ModeExample Operation Display Currency CAD USD RATE= Conversion ModeCurrency Conversion Mode Setting a new currency conversion rateConvert metric unit Metric Conversion ModeCurrency conversion Secret Function Registering a PasswordChanging the Password Accessing listings32K4 Game ModeBlackjack Twenty-one BlackjackAlpha Attack Level 0 EY3KW Alpha AttackBatteries used Type Model Quantity Use Battery ReplacementOperating Battery Replacement Battery replacement time Backlight Battery ReplacementReplacing the batteries SpecificationsPower supply Currency/Unit conversion modeGame mode Power consumptionExchanging Data with a PC AppendicesMemo 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