Casio CE-235 Page 18 Service Manual Download | Manualshive

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8. PCB LAYOUT

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Summary of Contents for CE-235

Page 1: ...SERVICE MANUAL ELECTRONIC CASH REGISTER CE 2350 EX 259 JAN 1995...

Page 2: ...ck 4 4 4 Hard check function 5 5 OPTION CIRCUT 8 6 CIRCUIT EXPLANATION 9 6 1 Power supply circuit 9 6 2 CPU 11 6 3 Motor error detection circuit 12 6 4 Mode key switch status read 13 6 5 RAM address h...

Page 3: ...2099 A D 2 2 Environmental specifications Operating temperature 0 C 40 C Operating humidity 10 90 Storage temperature 25 C 65 C Storage humidity 10 95 Vibration strength 1 5G The machine must be inthe...

Page 4: ...eys roll over Drawer Name DL 2416 D 15TC A55SP 1 M type drawer for U S A DL 2351 D 15TC A54SP 1 M type drawer for Canada 2 3 Option Wet cover Name WT 63 Power protection battery B 6 Drive period Appro...

Page 5: ...1 How To Start 1 Plug the power cord into an outlet 2 Execute the MAC operation 3 Turn the mode switch to Z position 4 Input 99999999 and press the sub total button 5 Start the diagnostic program and...

Page 6: ...0 Short Short Canada 0 1 Open Short 1 0 Short Open 1 1 Open Open U S Receipt switch position 8 Receipt OFF 0 Receipt ON Mode switch position 1 Z 2 X 4 REG 8 RF 4 3 Hard key code check When all keys ex...

Page 7: ...set Set the following data in the machine automatically Date 1st January 1992 Time 12 34 00 3 RAM write and read check The machine writes data into RAM and read out the data to compare with written d...

Page 8: ...chine reads out the data to compare with written data until an error is occurred and brinks on the display during this check To stop this check turn the mode switch to OFF position If an error is occu...

Page 9: ...peration 9 ST The machine display the time To stop this check press the Clear key 1 2 3 4 01 The time counts up If you make following operation the machine resets the time data and starts again Operat...

Page 10: ...00 3577 Transistor 2SA1015 GR O Y 1 2301 0011 Diode 1S2471 2 2310 3541 Zener diode RD12EB2 1 2600 7313 Carbon film resistor R 25 10K J 3 2614 0552 Carbon film resistor R 25 2K J 1 2801 7098 Electrolyt...

Page 11: ...voltage through the capacitor C1 Voltage VP A constant voltage 31 4V appears on the 2 position This voltage made from the constant voltage circuit consist of transistor Q1 and Q2 zener diode ZD2 resi...

Page 12: ...16 volts Q3 is turned off Then the PWD goes high level since the PWD is pulled up to VDD When the CPU receives High signal of PWD CPU goes to Power failure process Note During plug the Ac cord into ou...

Page 13: ...G1 Out Pulse 23 KR5 P71 Display segment signal SF1 Out Pulse 24 KR4 P70 Display segment signal SE1 Out Pulse 25 KR3 P63 Display segment signal SD1 Out Pulse 26 KR2 P62 Display segment signal SC1 Out P...

Page 14: ...ilize signal In High 61 P143 RAM write enable signal WE_ Out High 62 P142 RAM chip enable signal CE_ Out High 63 P141 Journal feed common signal Out Low 64 P140 Receipt feed common signal Out Low 65 P...

Page 15: ...tor happens over load Paper jam etc over load current 250mA runs resistor R9 So A point voltage lebel becomes high Then IC4 outputs high signal and then CPU knows motor error occured When the CPU rece...

Page 16: ...s RAM address A4 A7 A10 A11 to IC10 and IC10 store the address data Next CPU send RAM address A0 A3 A8 A9 A12 A14 to RAM At the same time CPU sendsclock signal to IC10 Then IC10 outputs stored data A4...

Page 17: ...which is controlled by CPU CPU knows printer error Then CPU stops printing CPU selects printing character by software 7 TO OPEN THE UPPER CASE 1 Remove the printer cover 2 Remove the 4 pcs of screw No...

Page 18: ...8 PCB LAYOUT 16...

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Page 30: ...38 9 Printer unit 40 10 Drawer 42 NOTES 1 Price and specifications are subject to change withput prior notice 2 As for spare parts order and supply refer to the GUIDEBOOK for Spare Parts Supply publi...

Page 31: ...Carbon film resistor CR 25 100OHMJ T 4 10 25 X R73 2652 1147 Carbon film resistor CR 25 150OHMJ T 1 25 X R40 2652 1154 Carbon film resistor CR 25 560OHMJ T 1 10 25 X R12 2652 1168 Carbon film resisto...

Page 32: ...20 4 X C25 2819 0743 Ceramic capacitor HE40TJYB101K 1 20 6 X C3 5 11 12 19 C22 24 26 28 C31 42 2819 5542 Ceramic capacitor HE12TJYB103K 13 10 X C30 41 2820 3233 TF capacitor ECQ V1H 104 JZW 2 22 X C10...

Page 33: ...D HDSP 5621 S02 4 160 A N 2601 6816 Carbon film resistor ERD25TJ121V 8 20 3 X N 2601 6817 Carbon film resistor ERDS2TJ121V 7 20 3 X 2 3500 5833 PCB connector 52044 2045 1 50 C 3 3500 5834 Pin ass y 9P...

Page 34: ...P 5621 S02 4 160 A N 2601 6816 Carbon film resistor ERD25TJ121V 8 20 3 X N 2601 6817 Carbon film resistor ERDS2TJ121V 7 20 3 X 8 4306 1004 PCB E240 E2 without components E311067A 1 1 77 X 9 6191 0334...

Page 35: ...4308 1074 PCB E241 E4 without components E312009 1 1 380 C 16 6191 0102 Mode key switch ass y E311288 1 1 300 C 17 6231 9577 PC joiner A E411356A 1 1 10 26 A 18 6231 9578 PC joiner B E411356A 2 1 20...

Page 36: ...34 5 Button block 33 26 32 27 35 34 31 29 36 37 28 25 24 44 40 40 2 42 42 41 23 39 38 30 43 22...

Page 37: ...11279 5 1 15 C 32 6221 4365 S button 7 E311279 6 1 15 C 33 6221 4366 S button 8 E311279 7 1 15 C 34 6221 4367 S button 9 E311279 8 1 15 C 35 6221 4368 S button 0 E311279 9 1 15 C 36 6221 4369 S button...

Page 38: ...arts Name Specification Ver Q M FOB Japan N R Yen Unit Price R POWER SUPPLY BLOCK 45 3000 3020 Power transformer TE 233 E4D 1 910 A 46 3030 4055 Ferrite core L5T18X6X10 1 45 X 47 3700 4281 Power cord...

Page 39: ...37 7 Upper case block 55 56 54 52 51 50 57 58 53 49...

Page 40: ...cover B E210953 2 1 180 C 51 6221 4061 Blind seal E311215 1 1 20 20 X N 52 6246 3330 Display window A E210952A 10 1 200 B N 53 6246 4740 Upper case E110216 10 1 850 X 54 6218 4957 Key set sub ass y E4...

Page 41: ...Connector ass y E411695 1 1 10 42 C 67 6221 4762 Paper roller E411696 1 2 10 18 C 68 6231 9641 Printer fixing stand E210951A 1 1 290 X 69 6221 3888 Battery cover E311096 1 1 10 38 B 70 6221 4069 Print...

Page 42: ...40 9 Printer unit...

Page 43: ...750254000 1 730 A 120 1909 1680 Paper hold roller shaft ass y F750255000 1 200 X 121 1903 0140 Paper feeding shaft holder F701252020 2 26 X 122 1909 1681 Paper feed gear F750251010 1 5 50 A 123 1909 1...

Page 44: ...42 10 Drawer unit 10 1 DL 2417 for U S A...

Page 45: ...4 330 B 216 6221 4902 Bill holder ZD18931 50 5 47 A 217 6221 4909 Bill Coin case ZD43651 1 1 1 300 C 219 6246 5220 Bill holder spring E412160 1 1 5 170 A 220 6246 5240 Bill holder fixing plate E211621...

Page 46: ...44 10 2 DL 2351 for Canada...

Page 47: ...50 3 6 X 316 6221 4902 Bill holder ZD18931 50 4 47 A 317 6221 4909 Bill coin case ZD43651 1 1 1 300 C 318 6221 4911 Partition plate ZD43652 1 3 330 B 319 6246 5220 Bill holder spring E412160 1 1 4 17...

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