Casio fx-9750G Operation, Service Manual & Parts List
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Also See for fx-9750G:
- User manual (441 pages) ,
- Quick start manual (436 pages) ,
- Manual (49 pages)
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Table of Contents
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Summary of Contents for Casio fx-9750G
- Page 1 (without price) fx-9750G (ZX-934AY) FEB. 1997 fx-9750G...
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Page 2: Table Of Contents
CONTENTS 1. SPECIFICATIONS ..................... 3 2. GENERAL GUIDE Modes ...................... 4 Power Supply ..................5 3. RESET OPERATION ..................8 4. DATA COMMUNICATIONS Connecting Two Units ................. 10 Before Starting Data Communications ..........10 Performing Data Transfer Operation ..........11 To Send the Screen................ -
Page 3: Specifications
1. SPECIFICATIONS Display system: 21-character × 8-line liquid crystal display; 10-digit mantissa and 2-digit exponent for calculations: displays binary, octal, decimal, hexadecimal, sexagesimal, fraction, complex number values Text display: Up to 128 characters for function commands, program commands, alpha characters Error check function: Check for illegal calculations (using values greater than 10 ), illegal jumps, etc. -
Page 4: General Guide
2. GENERAL GUIDE Modes • To select an icon 1. Press to display the Main Menu. MENU MENU Currently selected icon 2. Use the cursor keys ( ) to move the highlighting to the icon you want. 3. Press to display the initial screen of the mode whose icon you selected. •... -
Page 5: Power Supply
Icon Meaning Use this mode to draw graphs of implicit functions. Use this mode to solve linear equations with two through six unknowns, quadratic equations, and cubic equations. Use this mode to store programs in the program area and to run programs. Use this mode to transfer memory contents or back-up data to another unit. - Page 6 Replacing Batteries Precautions: Incorrectly using batteries can cause them to burst or leak, possibly damaging the interior of the unit. Note the following precautions: • Be sure that the positive (+) and negative (–) poles of each battery are facing in the proper directions. •...
- Page 7 • To replace the memory back up battery * Before replacing the memory back up battery, switch 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.
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Page 8: Reset Operation
3. RESET OPERATION 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 performing the RESET operation. - Page 9 • If the display appears too dark or dim after you reset the calculator, adjust the contrast. Resetting the calculator initializes it to the following settings. Item Initial Setting Icon Mode Comp Angle Unit Exponent Display Range Norm 1 Variable Memory Clear Function Memory Clear...
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Page 10: Data Communications
• Be sure you keep the connector covers in a safe place so you can replace them after you finish your program communications. 3. Connect the two units using the SB-62 cable. fx-9750G fx-9750G SB-62 cable • Keep the connectors covered when you are not using them. -
Page 11: Performing Data Transfer Operation
Performing Data Transfer Operation Connect the two units and then perform the following procedures. Receiving unit To set up the calculator to receive data, press (RECV) while the data communication main menu is displayed. (RECV) The calculator enters a data receive standby mode and waits for data to arrive. Actual data receive starts as soon as data is sent from the sending unit. - Page 12 Use the cursor keys to move the cursor to the data item you want to select and press (SEL) to select it. Currently selected data items are marked with “ ”. Pressing (TRAN) sends all the selected data items. • To deselect a data item, move the cursor to it and press (SEL) again.
- Page 13 • To execute a send operation After selecting the data items to send, press (TRAN). A message appears to confirm that you want to execute the send operation. (TRAN) (YES)..Sends data. (NO)..Returns to data selection screen. Press (YES) to send the data. (YES) •...
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Page 14: To Send The Screen
The following procedure sends a bit mapped screen shot of the display to a connected computer. To Send the Screen 1. Connect the unit to a personal computer or to a CASIO Label Printer. 2. In the data communication main menu, press (IMGE), and then select “On”... -
Page 15: Data Communication Precautions
Data Communication Precautions Note the following precautions whenever you perform data communications. • A TRANSMIT ERROR occurs whenever you try to send data to a receiving unit that is not yet standing by to receive data. When this happens, press to clear the error and try again, after setting up the receiving unit to receive data. -
Page 16: Operation Check
5. OPERATION CHECK REMARK: Performing this check, the data in this calculator are disappeared. If you do not want to disappear these data, save these data to another fx-9750G. STEP OPERATION DISPLAY NOTE Use a thin and pointed object to... - Page 17 STEP OPERATION DISPLAY NOTE ..ZX934 TEST MODE TEST mode menu 1. Cnt 5. TRS 2. LCD 6. ROM 3. KEY 7. RAM 4. DET 0. Rst ROM Version 1.0 ROM check ROMSIZE 4M byte CALC SUM = 036B2409 READ SUM = 036B2409 ROM OK ZX934 TEST MODE TEST mode menu...
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Page 18: Data Transfer Check
6. DATA TRANSFER CHECK Turn off both units and connect them by using the cable SB-62. MASTER SLAVE NOTE STEP OPERATION DISPLAY OPERATION DISPLAY ZX934 TEST MODE ZX934 TEST MODE TEST mode Press Press AC/ON AC/ON 1. Cnt 5. TRS 1. -
Page 19: Pin Function
7. PIN FUNCTION CPU HCD62121A03 (HC-3017): COB NOTE: The CPU is bonding on the PCB. If the CPU is defective, replace the PCB ass'y because the CPU cannot be replaced. Pin No. Pin Name Input/Output Function 1 ~ 14 KO14 ~ KO1 Key common signal 15 ~ 22 KI8 ~ KI1... -
Page 20: Troubleshooting
8. TROUBLESHOOTING SYMPTOM CAUSE SOLUTION Clean or adjust pressure of Dirt or poor contact on battery Intermittent display contact Clean or replace power Poor contact on power switch switch Resolder or replace Poor connection on PC joiner Resolder Poor soldering on LSI, capacitor, or resistor Replace battery No display at all Weak battery... -
Page 21: Operation Problems
9. OPERATION PROBLEMS If you keep having problems when you are trying to perform operations, try the following before assuming that there is something wrong with the calculator. • Get the Calculator Back to its Original Mode Settings 1. In the Main Menu, select the RUN icon and press 2. -
Page 22: Error Message
10. ERROR MESSAGE Message Meaning Countermeasure 1 Calculation formula contains an error. 1 Use Syn ERROR to display the point where the error was generated and cor- rect it. 2 Formula in a program contains an error. 2 Use to display the point where the error was generated and then correct the program. - Page 23 Message Meaning Countermeasure Mem ERROR • Not enough memory to input a function • Keep the number of variables you use for into function memory. the operation within the number of vari- • Not enough memory to create a matrix ables currently available.
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Page 24: Schematic Diagrams
11. SCHEMATIC DIAGRAMS Main Block 1 — 25 —... -
Page 25: Main Block 1
Main Block 2 — 26 —... -
Page 26: Key Block
Key Block — 27 —... -
Page 27: Parts List
12. PARTS LIST Item Code No. Parts Name Specification ZX933-1 ASS'Y LSI3 2012 3192 LSI TC55257DFL-7085V LSI2 2012 5531 LSI UPD23C4001EJGW-C67 2250 1281 Chip transistor 2SA1179M5, M6, M7-TB 2105 2737 CMOS-IC RH5RL50AA-T1 2590 1967 Ceramic oscillator CSTC4.30MG-TC ZX933-2 ASS'Y 6416 9441 Battery spring A-Z933 A441557A-1 6416 9450 Battery spring B-Z933 A441558-1... - Page 28 13. EXPLODED VIEW (1/2) — 29 —...
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Page 29: Exploded View
EXPLODED VIEW (2/2) LSI5 LSI6 — 30 —... - Page 30 MA0300571A...