Casio fx-7400G Service Manual & Parts List Download Page 2 | Manualshive

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Casio fx-7400G Service Manual & Parts List Download Page 2

CONTENTS

1.

SCHEMATIC DIAGRAMS .................................................................................. 1

2.

SPECIFICATIONS ............................................................................................. 3

3.

REPLACING BATTERIES.................................................................................. 4

4.

RESET OPERATION .......................................................................................... 6

5.

ERROR MESSAGE ............................................................................................ 8

6.

OPERATION CHECK ....................................................................................... 10

7.

EXPLODED VIEW ............................................................................................ 12

8.

PARTS LIST ..................................................................................................... 13

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Summary of Contents for fx-7400G

Page 1: ...R fx 7400G ZX 930A MAR 1996 without price fx 7400G INDEX ...

Page 2: ...CONTENTS 1 SCHEMATIC DIAGRAMS 1 2 SPECIFICATIONS 3 3 REPLACING BATTERIES 4 4 RESET OPERATION 6 5 ERROR MESSAGE 8 6 OPERATION CHECK 10 7 EXPLODED VIEW 12 8 PARTS LIST 13 ...

Page 3: ... 1 1 SCHEMATIC DIAGRAMS ...

Page 4: ... 2 ...

Page 5: ...UM 4 Approximately 1 000 hours continuous display of main menu Approximately 2 years poweroff Back up Approximately 2 years The batteries that have been installed in this unit when user purchased it had been used in the factory test so it will be impossible to fully satisfy this specifications when these batteries are used Auto power off Power is automatically turned off approximately six minutes ...

Page 6: ... and hard to see after you turn on power adjust the contrast using the following procedure 1 Press MENU 2 Use the cursor keys to select the CONT icon and press EXE or simply press 7 to display the contrast adjustment screen 3 Press to make the figure on the screen lighter or to make them darker 4 After getting the contrast the way you want it press MENU to return to the main menu REMARK Never remo...

Page 7: ... up battery turn on the unit and check to see if the Low battery message appears on the display If it does replace the main power supply batteries before replacing the back up power supply battery Never remove the main power supply and the memory back up batteries from the unit at the same time Be sure to switch the unit off before replacing batteries Replacing batteries with power on will cause d...

Page 8: ...emory of the calculator If you need the data currently stored in memory be sure to write it down somewhere before performing the RESET operation To reset the calculator 1 Press MENU to display the Main menu 2 Highlight the MEM icon and press EXE or press 8 3 Use to move the highlighting down to Reset and then press EXE 4 Press F1 YES to reset the calculator or F4 NO to abort the operation without ...

Page 9: ...Graph Function Enlargement Reduction Factor Table Graph Data List Data Statistical Calculation Graph Memory Program Input Buffer AC Replay Performing the RESET operation while an internal calculation is being performed indicated by a blank display will cause all data in memory to be deleted Make sure that no calculation be being performed before starting a RESET operation If the calculator stops o...

Page 10: ...and correct it 2Use or to display the point where the error was generated and then correct the program 123 Check the input numeric value and correct it When using memories check that the numeric values stored in memories are correct 4Try using a smaller value for x x increment decrement 1Correctly input a Lbl n to correspond to the Goto n or delete the Goto n if not required 2Store a program in pr...

Page 11: ...needed data to make room for the new data Correct the argument Fix n Sci n n integer from 0 through 9 Lbl n Goto n n integer from 0 through 9 Check list dimension Meaning 1Not enough memory to hold function input in the Graph Mode for graph drawing 2Not enough memory to hold function in the TABLE Mode 3Not enough memory to store data in list function Incorrect argument specification for a command ...

Page 12: ...TEST mode menu 3 4 5 6 8 9 7 10 EXE EXE EXE EXE EXE 1 No Display All dots are displayed Reverse checkers are displayed Checkers are displayed Frame is displayed No Display Z X 9 3 0 1 L C D 2 K E Y 3 R O M 4 D E T T E S T 5 T R S 6 R A M 0 R s t Check for display TEST mode menu Check for display Check for display Check for display Check for display AC ON 11 12 2 Check for keys G T F1 F2 F3 Check f...

Page 13: ...K ROM check 15 Z X 9 3 0 1 L C D 2 K E Y 3 R O M 4 D E T T E S T 5 T R S 6 R A M 0 R s t TEST mode menu 16 RAM Check 8 K byte OK RAM check 17 19 18 20 End No Display Z X 9 3 0 1 L C D 2 K E Y 3 R O M 4 D E T T E S T 5 T R S 6 R A M 0 R s t TEST mode menu R E S E T R E S E T A L L M E M O R I E S Y E S NO RESET ALL Reset TEST mode menu EXE EXE F1 EXE 3 6 0 SHIFT AC ON ...

Page 14: ... Peel the display plate C from the upper case then loosen the two screws S1 2 Remove the battery cover J then loosen the screw D then remove the battery holder K 3 Remove the lithium battery B1 and the two bat teries B2 4 Loosen the six screws S2 then open the lower case 7 S1 4 7 EXPLODED VIEW ...

Page 15: ... 13 8 PARTS LIST ...

Page 16: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926 ...

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