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Casio fx-7300G Service Manual

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(without price)
fx-7300G
(LX-377AT)
MAR. 1995
fx-7300G
INDEX
R

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  Summary of Contents for Casio fx-7300G

  • Page 1 (without price) fx-7300G (LX-377AT) MAR. 1995 fx-7300G INDEX...
  • Page 2: Table Of Contents

    CONTENTS SCHEMATIC DIAGRAM..................1 SPECIFICATIONS ..................... 3 REPLACING BATTERIES.................. 4 RESET OPERATION ..................4 ERROR MESSAGE .................... 5 OPERATION CHECK ..................7 EXPLODED VIEW ....................9 PARTS LIST ..................... 11...
  • Page 3: Schematic Diagram

    1. SCHEMATIC DIAGRAM — 1 —...
  • Page 4 — 2 —...
  • Page 5: Specifications

    2. SPECIFICATIONS 13-character × 6-line liquid crystal display; 10-digit mantissa and 2- Display system: 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...
  • Page 6: Replacing Batteries

    3. REPLACING BATTERIES 1 Switch the power of the calculator off. RESET 2 Slide the battery compartment cover on the back of the unit in the direction indicated by the arrow. 3 Remove the two old batteries. 4 Load two new batteries into the calculator so that their positive + and negative - ends are facing properly.
  • Page 7: Error Message

    Resetting the calculator initializes the unit to the following settings. Initial Setting Item Mode COMP Unit of Angular Measurement Norm Norm 1 BASE-N Clear Value Memories Expanded Memory Clear Ans Memory Clear Graphic Display Clear Text Display Clear Clear Graphic Function Memory Program Clear Input Buffer...
  • Page 8 Meaning Message Countermeaseure Ma ERROR 1 Calculation result exceeds calcula- tion range. Check the input numeric value and 2 Calculation is performed outside the correct it. input range of a function. When using memories, check that 3 Illogical operation (division by zero, the numeric values stored in memo- etc.) ries are correct.
  • Page 9: Operation Check

    6. OPERATION CHECK DISPLAY STEP OPERATION NOTE Use a thin and pointed object to RESET OK? press the RESET button on the back of the unit. YES: PRESS NO : PRESS EXIT ****************************** Reset MEMORY ALL CLEARED ! ****************************** AC/ON SHIFT HARD TEST TEST mode menu...
  • Page 10 OPERATION DISPLAY NOTE STEP Check for keys. Trace X-var, Graph, Range · · · · · · X-var Graph · · · · · · To push the key sequentially that is being appeared in the display. HAND TEST TEST mode menu ·...
  • Page 11: Exploded View

    7. EXPLODED VIEW DISASSEMBLY Remove the battery cover M, and loosen the six screws H on the lower case 8, then open the lower case. Loosen the six screws I on the PCB ass'y 1, and remove the PCB ass'y. LSI1...
  • Page 12: Parts List

    8. PARTS LIST FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price PCB ASS'Y 6414 7040 PCB Ass'y 377XXX0300R*1 (This assembly contains the following available elements.) 2105 4074 MOS IC S-80724AL-AM-T1 1 10 LSI1 6413 3300 COF3010-F1 sub ass'y A340137*1 LSI2 2011 4088...
  • Page 13 8-11-10, Nishi-Shinjuku Shinjuku-ku, Tokyo 160, Japan Telephone: 03-3347-4926...