Sharp PC-1285 Service Man Download | Manualshive

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Summary of Contents for PC-1285

Page 1: ...sed on 1 O minutes of arithmetic opera tion or program execution and 50 minutes of display per hour at a temperature of 2o c Life may vary depending on the operating conditions and the type of battery used o cto4o c 135 W x 141 D x 9 6 H mm opened 135 W x 70 5 D x 19 2 H mm closed 1759 batteries included APPLICATION ONLY Weight Operating temperature Dimensions Power supply Power consumption Batter...

Page 2: ... CE 127R microcassette tape recorder 3 To load program from the 2 5 pocket disk In this case the fol lowing option is required CE 140F pocket disk drive 4 To load program directly from another pocket computer In this case the following cable option is required EA 128C NOTE Note the following when loading the RAM card with the program created or edited on the PC 1280 1 Set the PC 1280 in the MEM 1 ...

Page 3: ... Write clock normally high 3 cpAL Out Address latch Clock used to latch the address of the LCD driver 4 TES In Test pin normally low 5 cp1 In Oscillator input 6 cpo Out Oscillator output 7 RES In Reset input reset with a high state of signal 7 1 CPU SC61860A38 7 LSI SIGNAL DESCRIPTION Fig 3 Qb __L__ L_ _ ___L_ _ Action of the voltage detect IC Fig 2 Cl _ CAU signal level Ol STOPsignal Symbol ON le...

Page 4: ... pin DOUT P channelopen output 11 P04 Out 11 pin DIN P channel open output 12 P05 Out 11 pin BUSY P channel open output 13 NC Not used 14 SLTB Out Not used 15 AS3B Out Not used 16 AS1 Out System ROM A14 and RAM A11 17 AS2 Out System ROM A15 and RAM A12 18 AS3 Out System ROM A16 and RAM A13 19 AF15 Out RAM card slot A15 20 AF16 Out RAM card A16 21 SLT1 Out RAM card slot chip enable 22 SLT2 Out Inte...

Page 5: ... holding pins 3 Insert the key spacer by positioning it to the guide pins 4 Fold back the lower half of the key sheet and fit the terminal onto the guide pins on CAB B NOTE At this point the lower half of the key sheet should not yet be on the guide pins or holding pins and the fold line should be left loose Knob 1 ll Contact Q Y For the contact is secured on the knob at two locations it has to be...

Page 6: ...a 0 033uF 6 The contents of the memory will be erased with the following proce dure 1 Insert the RAM card 2 Press the RESET switch 3 Press the YES key Normally the YES key may not be pressed but the YES key ON prompt may appear depending on the con tents of the RAM card 4 Key in Gill JGJ 5 The display will show 0 55555555555 6 After leaving the unit in the above state for more than 14 minutes chec...

Page 7: ...owing three keyssimultaneously PowerOFF A test program is contained in the ROM Test items 1 RAM card read after write test 2 11 pin connector 1 0 line test 3 15 pin connector 1 0 line test NOTE The item 3 is not used for PC 1285 Tool required The PC 1360 special tool UKOGC3020CSZZ price rank BC is used for 2 and 3 Description The RAM contents will be erased in the progress of the test item 1 Neces...

Page 8: ... 307CC H Test tool t t pin connector circuit diagram IOOKO MT2 Ip c N VGG BUSY I OUT XI N XOUT ll N ACK 102 101 NOTE 1 The test pins and the test sequence are shown next jENTERj Menu llPIN CHECKED jENTERi llPIN XOUT HIGH XIN LOW llPIN lf WAIT lf Menu ID 2 11 pintest Fasten the 11 pin connector of the test tool with the parts side face up to the t t pin connector on the left side of PC 1285 the tes...

Page 9: ...OOK Oleo 000 le II le le lolol 010 1 II Ill Vl vi inJ lo a uoo c trOO J J I J l J l _____ _____ Ceramic capacitor CllO l r1f 150PCH A 12 Al 3 39 c G 5 SK CG J l 11 I J 02 03 MN ISRl4B 1 3l l J g1Jai l l I JJ Tl 1 nVHl lVJ osr sa I 280 J 1 J J l J I CSP ltiE r J S6 OSPI r 757 5lf __ SL t 1 LJ LH5310X 9 R W LZ92K41 AFI r 7 9 AFI i v v TIO AS3 SLOT lo __ I a GNDJ _ It AIS CG A CROM m Vee v I tLl R W ...

Page 10: ... capacitor I I Pi n I RI I IOOK 1DT3 I I I _ J DTAIH 3 06 DA204K r I r 1 f 1 r CCPU C5 I OOP CH CB XI CSB7BB RB IM I OOP CH J OPEN EX SHORT R7 I OOK AS IA7 IA6 KSB GND VA _l CR2032 2 VM C2 lu VG Cl 5 VB 3 3u RI 5 10 VD s 5BK DI VGG DT2 L J A38 RB IOOK CB o 033 RESET SW VRI 20K HB 14 ...

Page 11: ... Route within these two lines 4 Route within these two lines M1054 Take care not to pinch the jumpers J2 and J3 when engaging the cabinets RAM slot PWB parts side Main PWB parts side 12 PARTS SIGNAL LAYOUT ...

Page 12: ... 12 No pattern RAM slot PWB key side 1 2mm height MAX Main PWB LCD side PC 1285 0 ssczz fJ r hin these two lines ...

Page 13: ... Sprin11 pin 22 PGUMM1020ECZZ AH N B Key rubber 23 P Z E T L 1 0 2 7 E C Z Z AA c Kev spacer 24 CPWBF1053EC01 AX E Memory PWB unit Include No 25 26 25 MSPRC1016ECZZ AA N c Sprin11 for lid 26 MSPRClOOlECZZ AB c PS sorinz for RAM card 27 0CNTM1042CCZZ AA c Slide switch terminal 28 MSLiP1003ECSA AB N c Slide switch knob 29 PGUMM1594CCZZ AB c Reset sprin11 rubber 30 PGUMS1608CCZZ AE c Rubber connector...

Page 14: ... 14 I 38 21 47 RAM card section CAUTION label attachment l 50 48 ch the label be careful not to 49 II nth t lit l own in the figure Battery 8 18 indication label position ...

Page 15: ...V lOOPF C5 6 12 V C K Y T P 1 E F 1 0 4 Z AA c Caoacitor 25WV 0 lOuFl C34 71 l3 VCKYTP1HB821K AA c Caoacitor 50WV S20PFl ClO 14 VHDDAN202K l AB B Diode DAN202Kl D1457S 15 VHDDA204K l AC B Diode DA204Kl DG is V H i L H 5 3 1 0 X 9 1 AW N B IC LH5310X9 ROM 17 VH i LZ9 2K41 1 AN N B IC ILZ92K41 rG A 18 VHiMN1280Q 1 AE B IC IMN12SOQ 19 VHiSC43536 l AX B IC CSC43536l DISPl 2 20 VHiSC61860A38 AX B IC SC...

Page 16: ...inted in Japan COPYRIGHT 1988 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 otherwise without prior written permission of the publisher SHARP PC 1285 ...

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