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Sharp PC-E500 Service Manual - PC
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1. 2 2 OL OO 2 mmm kand kand kand kami kand kand kand kand kani kami kand kand kand kand bami band kand kand kand a m zia z xjz Njoo T ATN lt 2 0 Sic ws Si Se 1 Ss lH 0401402 lt lt 5 21 Dla a lt 2 lt lt 24 2 lt 5 olola gt u 5 c c a a a a 0 a OO 2 4 4 gt a 5 PARTS CODE PARTS CODE PWB unit 1 Exteriors 500 DESCRIPTION DESCRIPTION bag 140 260m Instruction book for German Instruction book E G F except for German E ee ee Issa Rb VN c ue ae 299129249134 3 ac 02 az az az 19159 ael 9S HANINN Ohio in 2 ol Ha HHA ais 2 855 lt lt Irt 5 oa 9 eoe 4 4 2 o SS S 2 SS SS E P 12222 55 5155 5 5 5 5 5 5 5 5 5 5 5 2 5 5 ad od 5 9 9 9
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4. 500 SHARP SERVICE MANUAL CODE 00ZPCE500SM E 1 Product outline The PC E500 employs the large display 40 digits x 4 lines and 32KB memory standard 2 Specifications Model name Display Calculation digit Calculation system Program language CPU System ROM Memory capacity Stack Basic calculation functions PC E500 40 digits x 4 lines 5 x 7 dot matrix liquid crys tal display Single accuracy calculation 10 digits Mantis sa 2 digits Exponent Double accuracy calculation 20 digits Man tissa 2 digits Exponent In CAL MATRIX or STAT mode calculation is performed in single accuracy In the sequence of formula Priority judge ment function BASIC CMOS 8 bit CPU 128 K Byte System area about 3 8 K Byte Fixed variable A Z area 312 Byte Program data area 28600 Byte Total 145 Byte Subroutine 4 Byte for one stage 21 Byte for one stage Basic calculations Addition subtraction multiplication division Functional calculation Trigonometric function reverse trigonometric function hyperbolic function reverse hyper bolic function logarithm exponent angle conversion power power root coordinate conversion extraction of the square root in tegration absolute value code function pi etc SHARP CORPORATION PC E500 Edit function Serial machine Communication system Communicatio
5. 4 Attach the tape so that there is no slack 9 5 Main PWB replacement procedure D Press the OFF key If a RAM card is installed remove it Q Switch the select switch from A to B 8 Replace all the four batteries with new ones 0 Press the RESET switch Switch the select switch from B to A Install the RAM card 500 9 6 Memory backup battery cover attachment 9 10 Battery replacement label B attachment Card lid inner side C MEMORY MEMORY BACKUP BATTERY REPLACEMENT WHEN REPLACING THE MEMORY BACKUP BATTERY MAKE SURE THAT THE INSTALLED OPERATING BATTERIES TYPE AAA R03 X 4 ARE NOT LOW FOLLOW THE STEPS ot 40 TO AS SHOWN Battery THE FIGURE replacement label B Hang the battery on the larger pawl 8 Push the battery to hang on the smaller MEMORY BACKUP Hang the battery cover pawi on the cabinet and push it to attach BATTERY tighten the screw to fix Reference 9 7 Memory backup battery replacement Must be free from tilt When replacing the memory backup battery be sure to install four batteries R03 x 4 Use unexhausted ones 9 11 Insulation spacer attachment Replace the battery in OFF 4 procedures 1 to 6 as shown in the figure 4 0 Memory backup oe battery 4 9 8 Terminal caution label attachment 1 Solder the battery terminal 2 Take the insulation spacer with tweezers and insert under the bat tery ter
6. Electrolytic capacitor Solder the IC7 MN1280Q without folding its pin as shown in the figure C12 C19 220 C13 14 3 Keep it away from zener diode About 3mm About 4mm About 7mm J1 About 2mm H About 2mm About 120mm 9pIS Sued 71 61 sjeuDis sued EL 0054 04 500 14 Parts 13 2 Key side Ext Y anna 4 14 Parts list amp Guide Attach to the top cabinet a a o o S ul ul o 5 5 EE a ss 5 ala 5 33 CAN 5 3s 8 55 2 RH wo ra a H 5 5 8 5 8 55 Sees als o 5 sl 23 v e 5 2 S SISIN 5 Pss 52 5 8 BO 98 2 ad eer T x 11 2 8 lt lt 5 29 2 e 2191515 ESES ze S lajala ale 9 9 5 61 5 81 10 e s olc2 ram 2 mja a aS 5 5 S SSIS 20 0 615 2 18 5 2 8 2 5 5 91 5 5 528252 Nas gels E Xll 59 19 sS 81 5 gt 5 el 5l e 5 5 21 2 72 d 5 5 o 5 gt S 5 o S 5 S 5 5 AD AS 4 5 8 8 35449 a cle 5
7. 9 9 9 SIS 2 2 alo 313 A A 2 2 2 2 xxx 59991 9 9 si sis gt Hex uo lt lt S o o oz o lt ax lt ac AAO APM 7 9 bas Kani kand 4 kani Ww 1 1 1 leo e v o 8 le jesse lolo 8 juu o ulu gt S 6 ojona 20 0 20 00 00 00 00 00 5 67 57 2 E 2 2 t aio N c 4 e ev 00 E jejejej 3 z lt lt z lt lt lt lt eae itinere ADAM AN 5 lt lt lt lt 212 z ac jo gt gt gt gt gt gt gt gt gt gt gt gt gt gt o e 500 SHARP COPYRIGHT 1989 BY SHARP CORPORATION All rights reserved Printed in Japan No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or ot
8. 1 U PEEK 2 B 3 120 8 2 5580 0 255 605U B x H GOSUB I 13 335 lt 95 lt 00508 H G SUB I 148 P 0KE Bs SsTsUs 158 RETURN 1680 POKE COS CC 1TH CLS FAR 12170 4 6CU PSOR 1 8 1 0 J 0 119 GPRINT 835 NEXT 188 RETURN 198 C CLS PRINT ROM C 6 SECO 208 M amp BEEEO G SUB J CA LL M 2180 B 2 4 HEX PEEK lt 12 PEEK 2 228 IF As SCTE LET B 135 238 IF As DCTA LET B 122 24B8 IF A 350E LET B 11T 258 1F ag ABSA LET B 18 268 1F 3 9944 B 21H 278 IF AS BODC LET B 28D 288 IF BS BEEP 1 PRINT ERROR GOTO I 29B IF B 4 2 PRINT JAPA N 5 60T0 318 EX 3 Z18 PRINT Ver MID B 5 12 193 CLH5320X SRI GHT B 3123 2 i Z PRINT ROM CHECK 520 050 0 1 7 Ms 200588 8 500 209 200 amp 0 As BGs 690 204 244 23 6 504 608 BrSDEs SEE 20E 07 200 200 80 LAA 00 220 GAB 540 RETURN 350 D CLS PRINT C HECK 3 16 5D 0 amp 90 amp Bs8 amp DCs amp B 37O M amp BEEAG GOSUB LL M 8 PEEK amp 66 0BEEP 3 PRINT OK 60TO I 298 BEEP 1 PRINT ERROR 1 IN amp H HENX PEEK amp S5 RIGHTS O HEX PEEK amp 6442 2 HEX PEE K amp 63 488 60T0 I 418
9. HM62256LFP 12SLT RUN inc 120ns f 153kHz 32KB RAM HLT jen T _ _ __ __ 10m e HD61202 x2 During access during display irt 154A MN1280Q Low battery detection IC ww F HLT a ar NN RUN a E 500 9 Note for servicing 9 1 Battery holding cushion attachment 11 5 Battery holding cushion Reference Battery lid 9 2 Battery holding cushion attachment Reference Reference Bottom cabinet Battery holding cushion PC E500 9 3 Battery replacement label attachment Bottom cabinet Battery replacement caution label A TLABH1266ECZZ Must be free from tilt 9 4 Shield tape attachment Bottom cabinet Shield tape A Reference Note When attaching to the boss section attach neatly along the boss Shield tape Bottom cabinet Attachment procedure boss Shield tape A 1 Remove the separation paper in side B and bend section C and D as shown below 2 Fit the A side with the reference and paste the B side 3 Remove the separation paper and attach the tape 0 4 Fold Adhesive side 4 Attach the three boss sections Fit the boss holes with the shield tape holes 5 Attach the tape so that there is no slack Shield tape B 1 Bend E section Similar to C section 2 Fit with the reference and attach so that a1 and a2 are even 3 Attach the boss section Fit the boss hole and the shield tape hole
10. 0 188 NEXT 780 8 amp F8 798 28 AND 22 RINT RD HIGH s G0T 0 P amp FT amp BC 818 F 0R 1 170 100 820 F8 PEEK amp F8 S8z IF AND 4 4THEN PRINT RD L OW s GOTO P 4 amp FB FB POKE amp FT 35 3 PRINT OK 860 G60T0 1 0 DATA 0 4 2 6 1 5 2 7 1 5 2 7 1 5 5 7 889 amp FBsFB POKE 890 0 1 PRINT ERR oR 900 05070 I 918 CLS PRINT CARD CHECK 928 IF INKEY 42 THEN 5 930 PRINT 71 2KB 2 4K B 3 940 4 16KB 5 52 6 64 950 RIAS INKEYS 1 R A 5 6 THEN 960 51 0 0 4 255 2 AYAL B 4 1 4 970 amp G SUB 988 PRINT CARD 5 20VBL 5 998 CALL M 1 PEEK amp 66 BEEP 5 0 11 60 0 1818 BEEP 1 PRINT ERROR 11 IN amp H SHEX PEEK 65 RIGHT B HE x PEEK 64 22 PEEK 65 1626 G60TO I 1830 K POKE M amp a8 amp FFs amp 32 84 060 504 323 264 265 amp TC 04 1848 5 01 660 681 51 As 502 648 591 52 662 650 618 amp 15 508 amp FF 52 345 860 1832 1940 520 684665 232 EBs 804 667 32 263 RGT SLAs 614 24 548 591 26058 01 1 502 548 501 32 007 563 650 1B
11. 00H 4FFFFH FFFFF Addresses are checked from higher one to lower one and the error address found first is displayed Error code description Example In 11 pin check error Error code 1 13 01 Error value Erroneous output data Normal value Normal output data Check No See the 11pin check code table NO BUSY Din Dout 102 101 Din Dout 102 101 data 0 1 1 0 1111 13 The above table shows that input port signal 10011 is normal when output port signal is 000001 10011 is a binary number which is converted into 13 in hexadecimal number system When 11 pin check error code is 1 13 01 it shows that input port signal is erroneously 01 00001 though it should be 13 10011 That is data at and 102 are erroneous 11 pin check code table 15 check code table 18 BRUN 28 17 PEEK amp BFDLAtPEEK amp BFD1B amp 188 PEEK amp BFD1 C 190084 gt THEN 51 amp BBs LODZAS EAA amp FFFD8 4 CLS PRINT lt 58 1 DISP 2 2 4 11PIN 5 15PI N 6 CARD INKEYS 88 1 lt 106 A gt 6THEN 78 A GOSUB 4G 188 5070 110 B Bz amp BFCST S PEEK B
12. 280 detects both the CAU level and the STOP level by dividing the voltage applied to the input terminal 2 pin with R1 and R2 and by turning on off R2 with CAU signal of When the power voltage falls under the CAU level as shown in Fig 3 the BATT symbol lights up When the power voltage falls further under the STOP level the symbol goes off For CAU level detection the CPU E3 it turned on low level and the CPU terminal state is observed If the IRQ is at Low level the symbol lights up When the CAU level is detected the CPU E3 terminal is turned off high impedance When the CPU terminal is turned off resistor division is not performed and the voltage at LBIC 2 pin increases 0 Voltage detection IC Fig 3 driving the output from Low to High The CPU IRQ terminal state is operational description checked again to detect the STOP level After the STOP level is detected the ON key and the RESET key be come ineffective Low battery detection circuit check CAU level VCC GND 4 2V to 4 6V STOP level VCC GND 3 8V to 4 2V 8 Current consumption check Power source DC 5 0V is supplied to 11 pin connector No 2 pin and 0 to No 3 pin GND ON BASIC mode gt is displayed 3 24mA or less OFF Power off 644A or less SPEC Max Actual use Max C62015B01 CPU f 2304KHz 4 2mA EMI Current RUN During display OFF TT 383 E T
13. 510 688 688 123 2 88 1050 540 6 01 552 GAGs amp 66 07 1868 RETURN 1878 I 1889 INKEY THEN I 1898 RETURN SIEMYOS 500 11 Circuit diagram O lose E HD61203 ml 4 lam Le H9 xl EIL LI a 8 29 22005022521 Key matrix LF7448G 240 x 32 dots LCD 100K 5 Wa E eG 55 HMB2256LFP 1251 1 Pee EHHE I 8 x ales ARAR T 115 3 Li Lm E HIE ES es 4 ER HEI 114 HE TER ti mA ee EA es t4 L i ERRER 22225 E 1061203 S TREE Co a Mi lt 12 LCD wiring diagram 79 00S3 Od eui pesn jou ere pue LXIL 18WSV 91907 Q 202 19QH 95 LA D 0 19 9A LA 9 LX yids 16jueo epis 02 Y26 5 a 97 N gt uldz2 uid 9 ud 5 amp Power terminal C MAX 5mm
14. E CLS PRINT 1 CHECK 3 420 RESTORE 430 D PEEK amp F3 E PEEK 4 440 POKE amp F3 D AND amp BF 450 I OTO 15 46 4 478 amp F5 G PEEK 5 48 1 AND 809 8 6 A ND amp F8 16 430 K 588 THEN PRINT H EX CIDSHER CKOSHEX J gt G0TO 510 528 Z 1THEN 2 550 2 1 amp F3 D OR 64 548 60T0 550 Z P KE amp BFCBF 64 S68 L PEEK amp FD POKE CCL AND amp 8 8 EEK amp FF 578 IF AND 2 5 ELSE M 580 S P KE amp FDs L AND amp 8F 64 M PEEK amp FF 598 IF AND 2 680 3 PRINT OK 512 N 62 L DATA 19 19 19 2 8 51 51 51 28 51 51 31 28 51 51 51 16 19 1919 28 521 519 51 2 8 51 51 51 28 519 51 51 630 M 1 PRINT ERR OR 547 amp F3sDsE POKE 2 55 660 F CLS RESTORE P RINT 15PIN CHECK 3 6T8 F1 2 PEEK amp F12AND 15 68 1 870 15 690 POKE 1 1 16 5101 718 81025 8 5 AND 7 728 5101 5102 THEN 73 ELSE PRINT HEX I2 61 012 510 22 5070 0 730 NEXT 740 amp F1sF1 750 amp FT F8 PEEK amp F8 F9 PEEK amp F9 FB P EEK amp FB 760 amp FB amp SF POKE 7 5 1 1
15. e interface CE 126P Pocket disk drive CE 140F 4 PC E500 system block diagram DC DC converter IRQ CPU SC62015B01 KO10 Ceralock 10 17 2 30MG g Key matrix 11 pin 15 pin SIO CE 212M 8K Byte CE 2H16M 16K Byte CE 2H32M 32K Byte CE 2H64M 64K Byte Common HD61203 RS 232C Level converter CE 130T MZ series etc The RS 232C function is required For section a cable 4 1 corresponding to the ved Color plotter printer CE 515P LCD LF7448G Column 1 HD61202 5 I E RAM HM62256 LFP backup battery RAM CARD SLOT ROM LH5320 X 1 5 amp 40000 VO amp H47FFF amp HAFFFF amp HB8000 Built in RAM 32KB amp HBFFFF amp HE0000 Built in ROM 128KB amp HFFFFF 6 LSI description CPU 5 terminal signal description Sinai desertion Ceramic oscillation output Ceramic oscillation input CR oscillation output CR oscillation input Display power converter control output power input terminal Reset input Reset at high level input terminal Test input Cassette signal input terminal Cassette signal output terminal ON key input terminal Normally pulled down to low level Write clock Normally high level Not used Key input terminal Data bus Address bus Not used Clock output terminal fo
16. ernate reversion all symbols go off MENU screen PC E500 2 Mask ROM check MENU screen ROM CHECK WAIT 6 SEC Buzzer Once ROM CHECK WAIT 6 SEC ERRORI Buzzer 3 times ROM CHECK WAIT 6 SEC EX Ver 1 LH5320XH ROM CHECK MENU screen 3 Built in RAM check MENU screen 3 RAM CHECK N Y Buzzer once Buzzer RAM CHECK ERRORII 3 times RAM CHECK OK I MENU screen 500 4 11 pin check MENU screen 11PIN CHECK Buzzer Y Buzzer Once 8times 11PIN CHECK 1 130 ERROR 11PIN CHECK MENU screen 5 15 pin check MENU screen s 15PIN CHECK Buzzer 3 times 15 PIN CHECK 1 40 ERRORI 15PIN CHECK MENU screen The error code in 11 pin check or 15 pin check means as fol lows Check No Normal value Error value 1 13 0 For details of error see Error code description 6 RAM card check MENU screen CARD CHECK 1 2KB 2 4KB 3 8KB 4 16KB 5 32KB 6 64KB In case of 32KB card CARD CHECK 1 2KB 2 4KB 3 8KB 4 16KB 5 32KB 6 32KB CARD RAM 32KB v Buzzer Once Buzzer 3 times CARD CHECK 1 2KB 2 4KB 3 8KB 4 16KB 5 32KB 6 64KB CARD RAM 32KB MENU screen RAM card address map 2KB 40000H 407FFH 40000 4KB 40000H 40FFFH 4FFFF 8KB 40000H 41FFFH 16KB 40000H 43FFFH 2 40000H 47FFFH 64KB 400
17. herwise without prior written permission of the publisher SHARP CORPORATION Information Systems Group Quality amp Reliability Control Center Nara 639 11 Japan 1989 August Printed in Japan
18. minal from side Note that the paste side is the battery terminal side 9 12 Insulation sheet attachment Insulation sheet Ks caution label Paste the label in position Attach the insulation sheet so that it does not cover the spring by minimizing dimension A and maximizing dimension B 9 9 Battery insulation sheet attachment Attach the insulation sheet to the center so that dimensions A 4 posi tions are all the same 6 10 Check software for servicing Checkitem 1 Liquid crystal visual check alternate display 2 Mask ROM verify check 3 Built in RAM read write check 4 11 pin check 5 15pin check 6 RAM card read write check Required tools Jig UKOGC3020CSZZ Used for 4 and 5 Outline of using method Before inputting a check software clear the RAM completely When check 6 is executed the RAM card content is deleted Save programs and data before check if necessary MENU MENU screen 1 DISP 2 ROM 3 RAM 4 11PIN 5 15PIN 6 CARD 1 Key input 1 DISP display check 2 Key input 2 Mask ROM check 3 Key input 3 Built in ROM check 4 Key input 4 11 pin check 5 15 Bn 6 RAM card check Note To end a check press the BRK ON key Details of each check 1 DISP display check MENU screen o Alternate display All symbols light up 12 Alt
19. n speed Parity bit Word length Stop bit Connector Output signal level Interface signal Memory protection Operating temperature Power source Battery operating time Power consumption External dimension Weight Accessories Cursor shift right left 4 gt Insertion INS Delete DEL BS Line up down T 1 Start stop synchronous asynchronous sys tem half duplex total duplex mode 300 600 1200 2400 4800 9600bps bit per second Even number odd number none 7 8 bit 1 2bit 15 pin connector for connection with external devices C MOS level 4 6V Input RD CS CD Output SD RS RR ER Others SG FG VC Battery backup Backups the program and data when the power is turned off 0 40 C DC 6V ROS x 4 About 70 hours of continuous operation Under the operating temperature of 20 C 10 minutes of calculation or program execution and 50 minutes of display for every hour There may be some variation depending on the operating environment and using condi tions 0 07W 200mm W x 100mm D x 14mm H 250g Including the battery cover 03 battery x 4 Instruction Manual This document has been published to be used for after sales service only The contents are subject to change without notice 500 3 System configuration Pocket computer CE 124 Printer amp cassett
20. r display chip SIO Not used SIO ER High level with OPEN command SIO RR Reception in the main body side allowed SIO RS Send request in the main body side Key strobe signal Low battery detection input terminal Signal description Not used ROM card chip select signal active high 10000 1FFFF Chip select signal for display chip Active high 00000 03FFF 08000 OBFFF Not used Internal ROM chip enable signal 0000 FFFFF RAM card chip enable signal 40000 7FFFF Internal RAM chip enable signal 80000 BFFFF Not used Key strobe signal SIO RD Receive data SIO SD Send data CE 140F data input terminal 11 pin DIN P ch open output 11 pin DOUT P ch open output 11 pin 02 P ch open output 11 101 P ch open output 11 pin ACK 11 pin BUSY P ch open output Not used Display power converter control signal Low battery voltage control signal SIO CS Opponent side send enable SIO CD Opponent side send request SIO PAK Not used 7 Low battery detection circuit The PC E500 is equipped with the low battery detection circuit The operations of the circuit are described below Part location numbers may differ from those in the actual circuit diagram When input voltage VIN exceeds the detection voltage VD the output of the voltage detection IC LBIC MN1280 is driven from Low to High When VIN falls under VD the output is driven from High to Low The LBIC MN1
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