Casio Fx-7300G Manual de usuario

fx-7300G(LX-377AT)

MAR. 1995

(without price)

fx-7300G

INDEX

CONTENTS

1. SCHEMATIC DIAGRAM.....................................................................................1

2. SPECIFICATIONS............................................................................................. 3

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

4. RESET OPERATION..........................................................................................4

5. ERROR MESSAGE ............................................................................................5

6. OPERATION CHECK .........................................................................................7

7. EXPLODED VIEW ..............................................................................................9

9. PARTS LIST .....................................................................................................11

— 1 —

1. SCHEMATIC DIAGRAM

— 2 —

— 3 —

2. SPECIFICATIONS

Display system: 13-character ×6-line liquid crystal display; 10-digit mantissa and 2-

digit exponent for calculations; displays binary, octal, hexadecimal,

sexagesimal values, fraction

Power supply: Two AAA-size batteries (LR03 (AM4) or R03 (UM-4))

Power consumption: 0.05W

Battery life*: Approximately 2,000 hours (contiuuous display of initial screen) type

LR03 (AM4)

Approximately 1,000 hours (continuous display of initial screen) type R03

(UM-4)

Approximately 2 years (power switch off) with LR03 (AM4)/R03 (UM-4)

*The batteries that have been installed in this unit when user pur

chased 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 switched off approximately six minutes after last

operation.

Ambient temperature range: 0°C ~ 40°C (32°F ~ 104°F)

Dimensions: 17.5mm H ×77mm W ×157.5mm D ( 3/4" H ×3" W ×61/4" D)

Weight: 120g (4.2 oz) including batteries

Accessories: Hard case

TYP [µA] MAX [µA]

ON (MENU) 320 457.5

OFF 11.2

Current Consumption

— 4 —

3.REPLACING BATTERIES

1Switch the power of the calculator off.

2Slide the battery compartment cover on the back of the unit

in the direction indicated by the arrow.

3Remove the two old batteries.

4Load two new batteries into the calculator so that their

positive +and negative -ends are facing properly. Be

sure to replace all two batteries with new ones.

5Replace the battery compartment cover, sliding it in the

direction opposite that indicated by the arrow.

6Perform the RESET operation described below.

Important

Data stored in memory can be corrupted or lost if battery power drops below a certain level. When

this happens, you must perform the RESET operation to restore normal operation. Note that the

RESET operation clears all data from memory. Because of this, you should be sure to keep written

copies of all important data to avoid losing it due to low battery power.

4.RESET OPERATION

You should perform the RESET operation whenever you want to initialize the calculator.

Warning!

The procedure described here clears all memory contents. Never perform this operation unless you

want to totally clear the memory of the calculator.

If you need the data currently stored in memory, be sure to write it down somewhere before per-

forming the RESET operation.

•To reset the calculator

Press

to display the Main menu, and use the cursor keys to highlight the RESET icon. And

then press

EXE

Press

EXE

to reset the calculator, or

EXIT

to abort the reset operation.

EXE

RESET

RESET OK?

YES

PRESS [EXE]

PRESS [EXIT]

✽✽✽✽✽✽✽✽✽✽✽✽✽

MEMORY

ALL CLEARED!

✽✽✽✽✽✽✽✽✽✽✽✽✽

— 5 —

Resetting the calculator initializes the unit to the following settings.

Initial Setting

COMP

Deg

Norm 1

Dec

Clear

Item

Mode

Unit of Angular Measurement

Norm

BASE-N

Value Memories

Expanded Memory

Ans Memory

Graphic Display

Text Display

Graphic Function Memory

Program

Input Buffer

Replay Memory

*If the calculator stops operating correctly for some reason, use a thin, pointed object to press the

RESET button on the back of the calculator. This should make the RESET confirmation screen

appear on the display. Perform the procedure described above to complete the RESET operation.

5. ERROR MESSAGE

Countermeasure

1Use or to display the point

where the error was generated and

correct it.

2Use or to display the point

where the error was generated and

then correct the program.

Meaning

1Calculation formula contains an

error.

2Formula in a program contains an

error.

Message

Syn ERROR

RESET button

— 6 —

Message

Ma ERROR

Go ERROR

Ne ERROR

Stk ERROR

Mem ERROR

Arg ERROR

Countermeaseure

123

Check the input numeric value and

correct it.

When using memories, check that

the numeric values stored in memo-

ries are correct.

1Correctly input a Lbl nto correspond

to the Goto n, or delete the Goto nif

not required.

2Store a program in program area

Prog n, or delete the Prog nif not

required.

•Ensure that Prog nis not used to

return from subroutines to main

routine. If used, delete any unneces-

sary Prog n.

•Trace the subroutine jump destina-

tions and ensure that no jumps are

made back to the original program

area. Ensure that returns are made

correctly.

•Simplify the formulas to keep stacks

within 10 levels for the numeric

values and 26 levels for the calcula-

tions.

•Divide the formula into two or more

parts.

1Use

SHIFT

Defm

to correctly expand

the number of value memories.

234

•Keep the number of value memo-

ries you use for the operation

within the number of value memo-

ries currently available.

•Simplify the data you are trying to

store to keep it within the available

memory capacity.

•Delete no longer needed data to

make room for the new data.

Correct the argument.

• Sci n, Fix n: n= integer from 0

through 9.

• Lbl n, Goto n: n= integer from 0

through 9, or alpha character from A

through Z.

• Prog n: n= 0 through 9.

• Defm n: n= integer from 0 up to the

number of remaining bytes.

Meaning

1Calculation result exceeds calcula-

tion range.

2Calculation is performed outside the

input range of a function.

3Illogical operation (division by zero,

etc.)

1No corresponding Lbl n for Goto n.

2No program stored in program area

Prog n.

•Nesting of subroutines by Prog n

exceeds 10 levels.

•Execution of calculations that exceed

the capacity of the stack for numeric

values or stack for calculations.

1Specified expanded value memory

does not exist.

2Not enough memory to expand

value memories specified number.

3Not enough memory to store statisti-

cal data.

4Not enough memory to hold function

input in the Graph Mode for graph

drawing.

Incorrect argument specification for a

command that requires an argument.

— 7 —

6. OPERATION CHECK

STEP OPERATION DISPLAY NOTE

Use a thin and pointed object to

press the RESET button on the

back of the unit.

Check for displayNo display

Check for display

Reverse checkers are displayed Check for display

EXE

Frame is displayed

Reset

******************************

* *

******************************

MEMORY

ALL CLEARED !

SHIFT

TEST mode menu

EXE

Checkers are displayed

EXE

Check for keys

Trace

RESET OK?

YES: PRESS

NO : PRESS

EXE

EXIT

OFF

Press G T

AC/ON keys

at same time.

AC/ON

HARD TEST

0. RST&EXIT

1. LCD

2. RAM

3. ROM

4. KEY

All dots are displayed Check for display

HARD TEST

0. RST&EXIT

1. LCD

2. RAM

3. ROM

4. KEY

TEST mode menu

RAM Check

8K byte

RAM check

HARD TEST

0. RST&EXIT

1. LCD

2. RAM

3. ROM

4. KEY

TEST mode menu

3ROM Check

56K byte

ROM check

HARD TEST

0. RST&EXIT

1. LCD

2. RAM

3. ROM

4. KEY

TEST mode menu

— 8 —

STEP

OPERATION DISPLAY NOTE

X-var, Graph, Range ·

·Check for keys.

To push the key

sequentially that

is being appeared

in the display.

17 HAND TEST

0. RST&EXIT

1. LCD

2. RAM

3. ROM

4. KEY

TEST mode menu

SHIFT (OFF) End

******************************

MEMORY

ALL CLEARED !

******************************

AC/ON

Trace X-var Graph ·

·(-) EXE

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