Casio JD-4000BK, Service Manual

Page 1: ...JD 4000BK ZX 805A R without price DEC 1994 JD 4000BK INDEX...

Page 2: ...FICATIONS 3 3 GENERAL GUIDE 6 4 RESET OPERATIONS 9 5 BATTERY REPLACEMENT 11 6 ERROR MESSAGE 13 7 LSI PIN FUNCTION 14 8 OPERATION CHECK 16 9 TO SAVE THE DATA TO ANOTHER MACHINE 17 10 TROUBLESHOOTING 20...

Page 3: ...TES 1 DP1 DP2 and DP3 are the checking points for the power supply 2 CP50 CP51 CP52 and DP1 are the terminals for the data transfer 3 The other terminals marked with may be used to function checking 4...

Page 4: ...nder normal temperatures year month date hour minute second AM PM day of the week full automatic calendar 12 24 hour timekeeping format Alarm Mode Daily Alarm 20 second electronic buzzer Hourly Time S...

Page 5: ...not be possible to satisfy the above specifications when these batteries are used Auto Power Off Approximately 6 minutes after last key operation Ambient Temperature Range 0 C 40 C 32 F 104 F Dimensio...

Page 6: ...10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 7...

Page 7: ...ect heat or flame Avoid use or storage in very low temperatures This may cause display response to slow down or fail entirely Very low temperatures can also shorten battery life Avoid use or storage i...

Page 8: ...nt 3 While the icon you want is highlighted press EXE to enter its mode MENU 1 MENU 2 MENU 3 7 7 7 1 2 5 6 9 0 3 4 7 8 Setting the System Language The JD 4000BK can display messages in any one of five...

Page 9: ...of the unit for about six minutes Pressing AC ON can restore the power Features and Functions Telephone Directory Mode Store the names and phone numbers of your friends along with their portraits Sch...

Page 10: ...4 Press to select Yes and then press EXE MENU 1 appears on the display after all data is deleted 5 Use the Timekeeping Mode to set the time after performing the RESET operation 6 Replace the battery c...

Page 11: ...operation 1 Loosen the screw that holds the battery compartment cover in place and remove the cover 2 Use a thin pointed object like a paper clip to press the RESET button inside the battery com partm...

Page 12: ...ve the main battery for any time memory retention will depend entirely on the condition of the back up battery Over a long period of time with just the back up battery in place memory contents are lik...

Page 13: ...its screw To replace the back up battery 1 Switch power off 2 Loosen the screw that holds the battery compartment cover in place and then remove the cover Fig 1 Do not turn switch on until you comple...

Page 14: ...a in memory matches data specified for search Registered password does not match input Battery power is low Action Confirm that the current time setting is correct Reduce number of characters in data...

Page 15: ..._ Not used 56 VREG3 Out Power supply for RAM 3 V 57 VLCD Out 5 9 V 58 61 VT1 4 _ VT1 VT3 1 0 V VT2 2 9 V 2 0 V VT4 3 9 V 62 63 VREG1 4 _ VREG1 2 6 V VREG4 5 0 V 64 VDB In VDB 4 4 V Lower battery messa...

Page 16: ...ble signal 27 WE In Write enable signal 28 VCC In Power supply 3 V Pin No Signal In Out Function 109 110 S1 S2 _ Not used 111 205 S3 96 Out Segment signal for display 206 DUMMY _ Not used 207 208 XI X...

Page 17: ...4 5 6 7 8 9 10 11 12 13 14 15 16 17 DISPLAY Reset Y N MENU 1 Cauti To Escape on Press AC KEY TEST 0 TES To Escape 1 SVC Press AC KEY 1 MEM 4 OPT ZX806 2 DSP 5 RESET 3 KEY 8K RAM OK ROM OK 1 MEM 4 OPT...

Page 18: ...the JD 4000BK unit to another unit using the following procedure 1 To reset the receiving unit Please reset the unit used to receive the data from the customer s unit according to the method mentione...

Page 19: ...s the short circuit operation as shown in figure on the next page 0 TES To Escape 1 SVC Press AC KEY 0 TES To Escape 1 SVC Press AC KEY 0 TRN 1 RCV 0 TRN 1 RCV Receiving Sending MENU 1 MENU 1 Rcv Erro...

Page 20: ...19 Main battery Shorting pads Shorting pin Shortcircuit the two shorting pads with a shorting pin for over 2 seconds...

Page 21: ...F1 Is the Heat seal defective Replace the PCB ass y 2 Erratic display Are there short circuit around the pins of the LSI HC3009 01 F1 or between the 2 pins of the crystal oscillator 1 Replace Y N Y R...

Page 22: ...eck or replace the chip capacitor C10 N N N Y N Is the heat seal defective Is the LCD defective Y Clean and adjust pressure of contact Clean or replace the rubber key Resolder Check or replace the ele...

Page 23: ...19 17 20 22 21 27 25 26 LSI1 24 11 EXPLODED VIEW DISASSEMBLY 1 Loose the screw Q then remove the battery cover P 2 Remove the two lithium batteries 3 Loose the four screws S then remove the lower cab...

Page 24: ...1 6 20 C X1 6510 4550 Crystal BD0063P2509 1 5 B N X2 6413 4600 Resonator BD0079P4502 1 5 B N 1 3335 5439 LCD CD423 TS 1 1 B N 2 5610 8200 Heat sheet Z806 A314040 1 1 5 B N 3 6413 4560 Sponge cushion F...

Page 25: ...FABL8051005 1 5 C N 29 6413 4290 Screw MAB90006204 4 20 C N 30 6413 4320 Label HGG00015106 1 20 C N 31 6413 4310 Screw MAA80014208 1 20 C N 32 6410 2200 Battery holder ECDB0211111 1 20 C Notes N New...

Page 26: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926...