Casio FX-7700GE, Service Manual

Page 1: ...fx 7700GE LX 375 MAR 1994 R without price INDEX ...

Page 2: ...ECK 5 4 DATA COMMUNICATIONS 4 1 CONNECTING TWO fx 7700GE UNITS 10 4 2 BEFORE STARTING DATA COMMUNICATIONS 11 4 3 SETTING COMMUNICATIONS PARAMETERS 12 4 4 USING ALL TO SEND ALL DATA 13 4 5 USING PROGRAM TO SEND PROGRAM DATA 15 4 6 DATA COMMUNICATIONS PRECAUTIONS 16 5 TROUBLESHOOTING 17 6 DISASSEMBLY VIEW 18 7 PARTS LIST 22 ...

Page 3: ... 1 1 SCHEMATIC DIAGRAMS 1 1 MAIN BOARD I ...

Page 4: ... 2 1 2 MAIN BOARD II ...

Page 5: ... 3 1 3 MAIN BOARD III ...

Page 6: ...tery Power consumption 0 1W Battery life Main Approximately 350 hours continuous display of 0 on battery type LR03 AM4 Approximately 200 hours continuous display of 0 on battery type R03 UM 4 Approximately 2 years power switch off on LR03 AM4 R03 UM 4 Memory protection Approximately 1 year Auto power off Power is automatically switched off approximately six minutes after last opera tion Ambient te...

Page 7: ... 4 5 F6 ab c AC Press the above keys at the same time 1 6 No Display Lx375 TEST 1 LCD 4 ROM 2 KEY 5 TRS 3 RAM 0 rst F1 RESET AC MAIN MENU COMP BASE SD REG MAT GRAPH EQUA PRGM LINK CONT RESET No Display RESET RESET ALL MEMORIES RESET ALL YES NO RESET ALL MEMORIES ...

Page 8: ... 6 NO OPERATION DISPLAY NOTE 7 8 EXE EXE 9 10 11 12 Reverse checker display Checker Display EXE EXE EXE 2 All dot display Frame didsplay Lx375 TEST 1 LCD 4 ROM 2 KEY 5 TRS 3 RAM 0 rst Trace ...

Page 9: ...sp X Q T log In Sin Cos Tan ab c X2 8 9 DEL AC 4 5 6 1 2 3 0 EXP NO OPERATION DISPLAY NOTE 13 14 15 17 4 ZOOM Press the key sequentially appeared on the display EXE 3 Lx375 TEST 1 LCD 4 ROM 2 KEY 5 TRS 3 RAM 0 rst 16 RAM OK Lx375 TEST 1 LCD 4 ROM 2 KEY 5 TRS 3 RAM 0 rst EXE A few seconds after ...

Page 10: ...t 19 5 1 20 Connect the two Lx 375 by using SB 62 TRANSMIT CHECK 1 COM CHECK 2 RANDOM DATA OUT Transfer side 1 TRANS 2 RECEIVE Transfer side 21 1 TRANS 2 RECEIVE Receive side Set the receive side machine Operate the in order of No 1 5 Press the 5 key LX 375 LX 375 SB 62 LX 375 LX 375 receive side transfer side ...

Page 11: ...RATION DISPLAY NOTE 23 DATA RECEIVE TO STOP PRESS AC KEY 22 Receive side TRANSMITTED 24 EXE Remove the SB 62 0 25 26 END 2 1 Transfer side RECEIVE OK Receive side No Display SHIFT AC Lx375 TEST 1 LCD 4 ROM 2 KEY 5 TRS 3 RAM 0 rst ...

Page 12: ...the data to be received and put the unit into receive standby 5 On the send unit specify the data to be sent and start the send operation 4 1 CONNECTING TWO fx 7700GE UNITS The following procedure describes how to connect two Power Graphic units with an optional SB 62 connecting cable for transfer of programs between them To Connect Two fx 7700GE Units 1 Check to make sure that the power of both f...

Page 13: ...ns you should first enter the LINK Mode from the Main Menu To Enter the LINK Mode Highlight the LINK icon on the Main Menu Press EXE or to display the LINK Mode The following are the operations that can be selected from the function menu at the bottom of the display Press the function key below the operation you want to perform F1 TRN Transmit F2 RCV Receive F6 PRM Parameter settings TRANSMIT DATA...

Page 14: ...d paired variable statistical data Variable Mem Value memory and extended memory contents Range Graph range parameters Factor Factor function zoom ratios Table Table Graph function data Graph Function Graph functions Equation Equation coefficients Back Up All memory contents including mode settings Note If the selections you make on the send unit and receive unit do not match a TRANSMIT ERROR will...

Page 15: ...ettings to what they were before you changed them press AC before pressing EXE to store the parameters 4 4 USING ALL TO SEND ALL DATA The following procedures show how to send all data from Program to Equation from one fx 7700GE unit to another Warning The following operation causes data in the seven applicable memory areas program function memory matrix memory single variable and paired variable ...

Page 16: ... Mode The following appears after the send operation is complete Press AC to return to the LINK Mode Receive Unit Starting from the LINK Mode press the function key to enter the receive mode F2 RCV Make sure that the pointer is located at ALL and press EXE to specify it as the data type EXE Press F1 YES to start the receive operation or F6 NO to abort without receiving anything F1 YES Pressing AC ...

Page 17: ...o specify it as the data type EXE Press F1 YES to start the send operation or F6 NO to abort without sending anything F1 YES Pressing AC interrupts the send operation and returns to the LINK Mode Receive Unit Starting from the LINK Mode press F2 RCV to enter the receive mode Move the pointer to Program and press EXE to specify it as the data type EXE Receive Unit Starting from the LINK Mode press ...

Page 18: ...ver the receiving unit does not receive any data approximately six minutes after it is set up to receive data When this happens press AC to clear the error A TRANSMIT ERROR or RECEIVE ERROR occurs during data communications if the cable becomes disconnected if the parameters of the two units do not match or if any other communications problem occurs When this happens press AC to clear the error an...

Page 19: ...or contact on power switch Poor connection on PC joiner Poor soldering on LSI capacitor or resistor Weak battery Dirt or poor contact on battery Poor contact on power switch Poor connection on PC joiner Defective LSI capacitor or resistor Poor contact between LCD and PCB Poor soldering on LSI Dirt on key contact Heavy key motion Poor soldering on LSI Defective LSI capacitor or resistor Constant co...

Page 20: ... 18 6 DISASSEMBLY VIEW ...

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Page 24: ...2250 0413 Chip transistor 2SA1411 T1B M16 1 20 C N VR1 3122 1862 Chip volume MVR32HXBRN203 1 20 C N 1 5610 7660 Heat seal A L375 A313350 1 1 1 B N 2 5610 7670 Heat seal B L375 A313351 1 1 1 B N 3 6408 0490 Tape A L375 A414163 1 1 20 X 4 6405 9090 Tape D L373 A413732 1 3 20 X N 5 6408 0450 LCD holder L375 A211376 1 1 20 C N 6 6407 9930 Flat screw A L370 A310044 41 1 20 C N 7 6409 2950 Adhesive tape...

Page 25: ...3 1 20 C N 17 6408 0460 Switch knob L375 A313343 1 1 10 C N 18 6408 0100 Battery spring A L370 A410112 3 1 20 C N 19 6408 0110 Battery spring B L370 A410113 3 2 20 C N 20 6408 0120 Battery spring L370 A412218 2 1 20 C N 21 6408 0170 CushionA L370 A413632 1 3 20 C 22 6391 8831 Reset key V160 A311024A 1 1 20 C 23 6274 7023 Contact spring A4532C 1 1 10 C N 24 6408 0091 Battery spring A L375 A33938 3 ...

Page 26: ...ew C L370 A310044 43 5 20 C N 49 6408 0060 Battery cover L370 A312944 1 1 20 C N 50 6408 0200 Label L370 A413640 1 1 20 X 51 6390 0431 Cap V332 A310765A 1 1 20 B 52 6405 8860 Decoration screw C L373 A412299 6 1 20 C 53 6405 8780 Tape E L373 A411085 3 1 20 X N 54 6409 4270 Cushion B L375 A414576 1 3 20 C N 55 6409 2940 Cushion C L375 A414577 1 1 20 C Notes N New parts R A Essential M Minimum order ...

Page 27: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926 ...