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Casio DT-700 Service Manual Download Page 36

  

Page 

34

  

DT-760 IO Box (PX-905)

  
1. Each part name and a work
  
  
  

[ Front]

[ Side ]

[ Rear ]

  
  

1.

RS-232C Connector (To PC)

2.

RS-485 Connector (Between I/O Box & I/O Box)

3.

LED for power supply indication

4.

LED for access indication

5.

Infrared rays interface

6.

DT-700 attaching  switch

7.

AC adopter connector

8.

Power switch

9.

The establishment unit

10.

Dip switch

11.  A hole for wall credit

  

  

Summary of Contents for DT-700

Page 1: ...Service Manual for DT 700 PX 790 DT 760 I O Box PX 905 Date July 1995 DT 710 PX 797 Date February 1997 DT 700 DT 710 DT 760 INDEX...

Page 2: ...5 5 Block diagram 6 6 Disassembly Assembly 10 7 Diagnostic program 15 8 Error code 16 9 IC data 18 10 Circuit diagram 20 11 Parts list 30 DT 760 I O Box PX 905 Page 1 Each part name and a work 34 2 S...

Page 3: ...ner System Semiconductor laser Wavelength Approx 670 nm light output J I S Class 2 laser Scanning Speed 100 scan sec Resolution 0 15 mm Min Readable PCS More than 0 45 more than 51 of reflection rate...

Page 4: ...to 50 Centigrade temperature Water standard Conforms with IPXII Soft ware Basic data collection Casio data entry tool for parameter setting by editor Copiler SHC Hitachi M T B F Stroke key over 300 0...

Page 5: ...Pin Signal CMOS SD 5 5 CMOS SD CMOS RD 10 10 CMOS RD CMOS RS 4 4 CMOS RS CMOS CS 8 8 CMOS CS CMOS CD 9 9 CMOS CD CMOS ER 3 3 CMOS ER CMOS DR 7 7 CMOS DR GND 6 6 GND GND 11 11 GND GND 14 14 GND FG shie...

Page 6: ...Page 4 AC Adaptors DT 9020ADOG 230 V DT 9020ADPU 120 V 2 I O box DT 760 IOE PX 905...

Page 7: ...attery consumption Power supply Level Description Voltage Handling of Hardware Main Battery Replacement battery voltage LB1 2 1 V IRQ6 INT3 Operating limits voltage LB0 1 6 V NMI Sub Battery Replaceme...

Page 8: ...trl 3 pin I F Bios 256k Sd Rd Gnd Flash Rom GA CMOS I F Sd Rd Er Dr Bios 512k Clock Unit Mask Rom 4 9 2 5 1 2 MHz 9 8304M Hz Bios KCG 512k Mask Rom Key Register On Key Trigger Key Real Time Clock Stro...

Page 9: ...A3 Out Address bus 72 XTAL In Crystal oscillator 24 Vss In Gnd 73 Vcc In Power 25 A4 Out Address bus 75 WDTOVF Out Watch dog timer over flow 26 A5 Out Address bus 76 RES In Reset 27 A6 Out Address bus...

Page 10: ...able 88 IOBOX In Hole 25 FOE Out Output enable 89 FRST In Reset 26 CS3 In Chip select 90 KX4 In Out Key common 27 CS2 In Chip select 91 KX3 In Out Key common 28 CS1 In Chip select 92 KX2 In Out Key co...

Page 11: ...ddress 57 CMSRD In CMOS R Data 121 A11 In Address 58 PW3P Out Power 3P 122 A10 In Address 59 3PSD Out 3P S Data 123 A9 In Address 60 3PRD In 3P R Data 124 A8 In Address 61 FRST In Reset 125 A7 In Addr...

Page 12: ...right 4 Separate the bottom case from the upper case by lifting it up from the upper case The nose cap connector cover and shaft can also be removed at this time However remove the nose cap carefully...

Page 13: ...erformed by following the reverse procedure of removal Push in the FFC joiner into the space above the connector while making sure it does not become pinched between the upper case and lower case 6 3...

Page 14: ...oard 1 Raise out the two main battery springs on the side on which the lead is connected 2 Remove the two flat screws 2 x 5 Ni and separate the inner case from the upper case for both the MAIN board a...

Page 15: ...ard The LCD film is removed by opening the connector opening dark brown portion upward 7 Attachment is performed by following the reverse procedure of removal When connecting the LCD film to the MAIN...

Page 16: ...onent by carefully prying a small minus precision screwdriver or similar tool between the gaps while being careful not to damage the upper case Composite Parts Rubber keys Double sided adhesive tape p...

Page 17: ...Test execution Normal end Screen 4 Press 1 to 5 keys Test execution Normal end Screen 5 Press 1 to 2 keys Test execution Normal end For Bar code demonstration is end by OFF Display for time out error...

Page 18: ...Error No LCD Message 2 1 14 PIN Received data error 2101 Send Receive error data CHR length error 2102 OPER Parity error 2103 PER Stop bit error 2104 TRAS RS sending CS receiving error 2105 by test No...

Page 19: ...ctive address 2 RAM_Keep Invalid Status setting 1101 Status The Ram volume distinction Data error 1102 W R data Address Back up resistor error 1103 Address line error 1104 Defective address 3 E_CURREN...

Page 20: ...Page 18 9 IC Data...

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Page 32: ...notice 2 As for order supply of parts refer to the Guide book for spare parts supply a separate publication 3 The numbers in the item column correspond to the same numbers in exploded drawing 4 Marks...

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Page 34: ...11A 1 1 C 10 6541 2327 Main PCB ass y P690 MAIN C140051 1 512KB 1 A 6541 2334 Main PCB ass y P690 MAIN C140051 2 1MB 1 A 12 6541 2383 Sub PCB ass y P690 SUB C240144 1 DT710 700EB 1 A 6541 6135 Sub PCB...

Page 35: ...31 6513 1615 Battery spring C C440195 1 1 C 32 6406 4412 Battery spring A C413002B 1 1 C 33 6328 9130 Screw A44793 7 2 C 3 Lower case block 34 6541 2425 Lower case ass y C340187 1 DT710 1 C 6541 4462...

Page 36: ...32C Connector To PC 2 RS 485 Connector Between I O Box I O Box 3 LED for power supply indication 4 LED for access indication 5 Infrared rays interface 6 DT 700 attaching switch 7 AC adopter connector...

Page 37: ...tion control procedure Half duplex 4 Electric power supply specifications Activity electric power supply Dedication AC adaputer Model 5Y40231 Input AC100V 50 60 Hz Output DC9V 600mA Consumption curren...

Page 38: ...Page 36 3 A method of connection RS232C Cable Modular Cable Dip Switch SW 1 RS 232C Used Unused Off SW 2 RS 232C Used Unused Off SW 3 Unused On SW 4 Terminater Terminater on Terminator off On...

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Page 41: ...5 000 A N 29 6513 1321 Filler plate B C440124 1 1 50 15 C 30 6513 1398 Filler plate RS C440171 1 1 50 18 C 31 3412 1295 Switch SSCUL N P 1 10 98 C 32 3501 5103 Adapter Jack HEC3110 01 010 1 10 43 C 3...

Page 42: ...Page 40 OS Dump To start OS Dump 1 DT 710 Push PW S L and 4 Instead of 7 keys at same time This modification is protected miss operation 2 DT 700 Push PW S L and 7 keys at same time...

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