Casio FX-7700GE - User Manual

Other manuals for Casio FX-7700GE

Service Manual27 pages

Questions and Answers

H
hicksrandyJul 30, 2025
What to do if my Casio FX-7700GE has no display?
- M
  Michael MillerJul 30, 2025
  If your Casio Calculator shows no display at all, it could be due to a weak battery, so try replacing it. Alternatively, there might be dirt or poor contact on the battery; in this case, clean the contacts or adjust the pressure. A faulty power switch may also be the cause, so clean or replace it. Other potential causes include a poor connection on the PC joiner (resolder or replace it) or a defective LSI, capacitor, or resistor, which would require replacement.
M
Molly HoustonAug 3, 2025
What to do if all keys do not function on Casio FX-7700GE Calculator?
- E
  Elizabeth ShortAug 4, 2025
  If all keys on your Casio Calculator do not function, it could be because a certain key is making constant contact; try separating the contact. Alternatively, a defective LSI, capacitor, or resistor could be the cause, requiring replacement.
S
Steven PerezAug 8, 2025
How to fix heavy key motion on Casio Calculator?
- L
  larrymcguireAug 9, 2025
  Heavy key motion on your Casio Calculator is often caused by dirt or a scratch on the key. Cleaning or replacing the key should resolve this issue.
M
Marcus BradfordAug 14, 2025
Why does a certain key not function on my Casio Calculator?
- K
  Karen ChavezAug 14, 2025
  If certain keys on your Casio Calculator aren't working, it might be due to dirt on the key contact, so cleaning or replacing the contact might help. Another cause could be heavy key motion, suggesting you should clean or replace the key itself. In some cases, poor soldering on the LSI or a defective LSI, capacitor, or resistor could be the issue, requiring resoldering or replacement.
M
Mark JohnsAug 19, 2025
Why is the display on my Casio FX-7700GE Calculator intermittent?
- R
  Robert DavisSep 12, 2025
  An intermittent display on your Casio Calculator can stem from several causes. It could be due to dirt or poor contact on the battery, which can be resolved by cleaning the contacts or adjusting the pressure. Another cause might be poor contact on the power switch, requiring you to clean or replace it. Additionally, a poor connection on the PC joiner may be the culprit, in which case you should resolder or replace it. Finally, poor soldering on the LSI, capacitor, or resistor could also lead to this issue, necessitating resoldering.
W
wrobertsAug 25, 2025
Why is the display on my Casio Calculator erratic?
- G
  Gina KeyAug 25, 2025
  An erratic display on your Casio Calculator may be due to poor contact between the LCD and PCB, in which case you should replace the heat seal. It could also be caused by poor soldering on the LSI, requiring you to resolder or replace the display PCB assembly.

Summary

Handling Precautions

About This Manual

Provides an overview of the manual's content and structure for quick reference.

Chapter 1 Getting Acquainted

1-1 Keys and Their Functions

Explains the primary and shifted functions of the calculator's keys and their operations.

1-2 Modes

Describes the different operational modes of the calculator and how to select them.

1-3 Basic Set Up

Guides users through initial settings like angular measurement and decimal place display.

1-4 Basic Operation

Covers fundamental operations, including inputting calculations, editing, and clearing memory.

1-5 Using the Function Memory

Details how to store and recall functions using the calculator's memory features.

1-6 Using the BASE Mode

Explains calculations in different number systems like binary, octal, and hexadecimal.

1-7 Graphic and Text Displays

Describes the calculator's graphic and text display capabilities and how they function.

1-8 Technical Information

Provides details on calculation sequence, error handling, and other technical aspects.

Chapter 2 Manual Calculations

2-1 Arithmetic Calculations

Covers basic arithmetic operations, including the use of parentheses for order of operations.

2-2 Units of Angular Measurement

Explains how to perform calculations using degrees, radians, and grads for angular measurements.

2-3 Trigonometric and Inverse Trigonometric Functions

Details the use of trigonometric functions and their inverses with examples.

2-4 Logarithmic and Exponential Functions

Explains how to use logarithmic and exponential functions with provided examples.

2-5 Hyperbolic and Inverse Hyperbolic Functions

Covers the usage of hyperbolic functions and their inverse counterparts.

2-6 Other Functions

Describes various other mathematical functions available on the calculator.

2-7 Coordinate Conversion

Explains how to convert between rectangular and polar coordinate systems.

2-8 Permutation and Combination

Details the calculator's capabilities for permutation and combination calculations.

2-9 Fractions

Guides on performing calculations involving fractions and converting between formats.

2-10 Engineering Symbol Calculations

Explains how to use engineering symbols and formats for calculations.

2-11 Number of Decimal Places, Number of Significant Digits, Display Format

Covers setting the display format, including decimal places and significant digits.

2-12 Calculations Using Memory

Demonstrates how to use the calculator's memory for storing and recalling values.

2-13 BASE Mode Calculations

Details operations and conversions within the BASE mode (binary, octal, decimal, hex).

Chapter 3 Differential and Integration Calculations

3-1 How the Unit Calculates Differentials

Explains the methods used by the calculator to compute differentials of functions.

3-2 How the Unit Calculates Integrations

Describes the process and methods the calculator employs for integration calculations.

Chapter 4 Statistical Calculations

4-1 Single-Variable Statistical Calculations

Covers calculations for single data sets, including mean, standard deviation, and data input.

4-2 Paired-Variable Statistical Calculations

Details calculations for paired data, including linear regression and correlation.

4-3 Things to Remember during Statistical Calculations

Provides important notes and reminders for accurate statistical calculations.

4-4 Examples of Statistical Calculations

Illustrates common statistical calculations with practical examples and their results.

Chapter 5 Using the Matrix Mode

5-1 Before Performing Matrix Calculations

Explains how to enter the Matrix Mode and prepare for matrix operations.

5-2 Modifying a Matrix

Guides on how to delete, insert, add rows/columns, and edit matrix contents.

5-3 Matrix Calculations

Covers arithmetic operations like addition, subtraction, multiplication, and scalar products with matrices.

5-4 Matrix Operation Precautions

Lists important precautions and considerations for performing matrix operations.

Chapter 6 Equation Calculations

6-1 Before Beginning an Equation Calculation

Details how to enter the Equation Calculation Mode and clear equation memories.

6-2 Linear Equations with Two Unknowns

Explains how to solve systems of linear equations with two variables.

6-3 Linear Equations with Three Unknowns

Guides on solving systems of linear equations involving three variables.

6-4 Quadratic Equations

Covers solving quadratic equations, including those with real and imaginary solutions.

Chapter 7 Graphing

7-1 About the Graphing Function

Introduces the graphing capabilities and types of graphs supported by the calculator.

7-2 Rectangular Coordinate Graphs

Explains how to graph functions in the rectangular coordinate system.

7-3 Polar Coordinate Graphs

Details how to input and graph functions in polar coordinates.

7-4 Parametric Graphs

Covers the process of graphing parametric equations.

7-5 Inequality Graphs

Guides on graphing inequalities and understanding the shaded regions.

7-6 Integration Graphs

Explains how to graph functions for integration and interpret the results.

7-7 Probability Distribution Graphs

Describes how to generate and interpret graphs for probability distributions.

7-8 Single-Variable Statistical Graphs

Covers creating statistical graphs from single data sets.

7-9 Paired-Variable Statistical Graphs

Details how to create statistical graphs from paired data sets.

7-10 Storing Functions in Memory

Explains how to save graph functions and their parameters for later use.

7-11 Other Graph Functions

Covers additional graphing functions like trace, plot, and scrolling.

7-12 Some Graphing Examples

Provides practical examples of graphing various types of functions and equations.

Chapter 8 Programming

8-1 Introduction to Programming

Introduces the basics of programming on the calculator, including modes and memory.

8-2 Deleting Programs

Explains how to delete individual programs or all stored programs.

8-3 About Error Messages

Lists common error messages and their meanings for troubleshooting programs.

8-4 Counting the Number of Bytes

Details how program size is measured in bytes and how to check memory usage.

8-5 Program Commands

Describes various commands used in programming, including jump and input commands.

8-6 Using Jump Commands

Explains conditional and unconditional jump commands for program flow control.

8-7 Using Subroutines

Covers the concept and use of subroutines within programs for modularity.

8-8 Using Array Memory

Explains how to use array memory for storing and manipulating data in programs.

8-9 Displaying Text Messages

Details how to display text prompts and messages within programs.

8-10 Using Matrices in Programs

Covers performing matrix operations directly within programs.

8-11 Using the Graph Function in Programs

Explains how to integrate graphing capabilities into programs.

Chapter 9 Data Communications

9-1 Connecting Two fx-7700 GE Units

Provides instructions for connecting two calculators using a transfer cable.

9-2 Connecting the fx-7700 GE with a Personal Computer

Guides on connecting the calculator to a computer for data transfer.

9-3 Before Starting Data Communications

Outlines the initial steps and considerations before initiating data communication.

9-4 Setting Communications Parameters

Explains how to configure communication settings like parity and speed.

9-5 Using ALL to Send All Data

Describes how to transfer all types of data from one unit to another.

9-6 Using PROGRAM to Send Program Data

Details the process of sending program data between units.

9-7 Using FUNCTION MEM to Send Function Memory Data

Explains how to transfer function memory data.

9-8 Using MATRIX to Send Matrix Memory Data

Guides on sending matrix memory data.

9-9 Using STATISTICS to Send Statistical Memory Data

Details transferring statistical data stored in memory.

9-10 Using VARIABLE MEM to Send Value Memory Data

Covers sending data from variable memories.

9-11 Using RANGE to Send Graph Range Parameters

Explains how to transfer graph range settings.

9-12 Using FACTOR to Send Graph Zoom Parameters

Guides on sending graph zoom parameters.

9-13 Using GRAPH FUNCTION to Send Graph Function Memory Data

Details transferring stored graph functions.

9-14 Using EQUATION to Send Equation Data

Covers sending equation data, including coefficients.

9-15 Using BACK UP to Send All Mode Settings and Memory Data

Explains how to back up and transfer all calculator settings and memory.

9-16 Screen Copy Function

Describes how to copy the calculator's screen display to a computer.

9-17 Data Communications Precautions

Provides important precautions and troubleshooting tips for data communication.

Appendix

Appendix A Power Supply

Information on the calculator's power source, battery replacement, and precautions.

Appendix B To Reset the Calculator

Instructions on how to reset the calculator to its factory default settings.

Appendix C Function Reference

A comprehensive reference of calculator modes, functions, and their initial settings.

Appendix D Error Message Table

A table listing error messages, their meanings, and counter-measures.

Appendix E Input Ranges

Details the acceptable input ranges for various functions and operations.

Appendix F Specifications

Provides technical specifications for the calculator, including calculations and communication features.

Casio FX-7700GE Specifications

General

Display Type	LCD
Number of Functions	320
Dimensions	19.5(H) x 81.5(W) x 161.5(D) mm
Power	Solar and battery
Algebraic logic	Yes
Fractions	Yes
Regression	Yes
Graphing	Yes
Equation solver	Yes
Power Source	Solar and battery
Type	Graphing