Sharp CE-159 Service manual - PC
Contents
1. 7 aoj s o z acj w o el ws x aal jo s acf w fo E rajn fo 7 zajn o anju te wale ye zej o iej n o w o we w SPAKET TNSMYEREEZE int he arrauizercer ei The lead of lithium battery is not soldered For prevent damage caused by short circuit with aluminum foil 4 which is used for protection from Ne damage of static electricity When the unit stocked long time period the battery will be discharged D it self life of battery will shorter than the specification Do not sale this PDF All and more about Sharp PC 1500 at http www PC 1500 info SHARP CORPORATION Industrial Instruments Group Reliability amp Quality Control Department Yamatokonyama Nara 639 11 Japan December 1982 Printed in Japan Do not sale this PDF2. All and more about Sharp PC 1500 at http www PC 1500 info SERVICE MANUAL MODEL CE 159 RS 232C Interface PC 1500 Option CONTENTS 1 Features 2 Specifications 3 Precautions 4 Nomenclature 5 6 j Cell life and repla 6 Memory address 7 Memory set up switch 8 CEIS9 circuit diagram 9 CE159 parts position chart 10 Parts List amp guide Navabuncee Insert this manual into the service manual PC 1500 amp Option Do not sale this PDF All and more about Sharp PC 1500 at http www PC 1500 info 1 FEATURES The CE 159 is a program module with an 8 K byte memory capacity RAM capable of being entered or read for use on the PC 1500 It can be used to assign a part of the RAM capacity as an area for exclusive use in readouts allowing no entry of new data or pro gram change into the area Even when disconnected from the PC 1500 the CE 159 retains the program contents in this area due to its built in lithium cell This is available for immediate use when reconnected to the computer Therefore if programs are stored in several CE 159 modules they can be executed only by replacing the modules 2 SPECIFICATIONS Model CE 159 Type RAM module Capacity 8 K bytes Backup power source 1 DC 3V Lithium cell CR2032 Battery About 5 year If installed in the PC 1500 About 2 years If removed from the PC 1500 When used at 25 C Life varies with op
3. 1 Do not sale this PDF All and more about Sharp PC 1500 at http www PC 1500 info 4 NOMENCLATURE AND FUNCTIONS 4 Terminal cover 2 Exclusive Readout Area DS 2 caps mt men 2 Exclusive Readout Area Set Switch With the switch positioned at the mark e the memory capacity desig nated by the Capacity Set Switch can be set as an exclusive readout the switch positioned opposite the mark e the exclusive readout area is reset making the CE 159 memory operable as RAM 3 Capacity Set Switch This switch designates the capacity for use as an exclusive readout area Numbers PIE Setting the switch at positions 8 6 and 4 designates 8 K bytes 6 K pacity ore indi bytes and 4 K bytes respectively With the Set Switch positioned at the fll the designated capacity becomes an exclusive readout cated on u module r This switch may be in any position when the CE 159 is not used ar to designate an exclusive readout area Terminal Covor This cover protects the CE 159 terminal when the CE 159 is not connected to the PC 1500 When connected this terminal cover is housed inside the CE 158 RAM Area and Exclusive Readout Area The RAM area and exclusive readout area are il vsed m only OS K oyes DS K bytes Ram ares Send os ence ees Besk maer e159 BR bries Uy VA VA RAM ses Pc 1500 2K byte 2 Do not sale this PDF All and more about Sharp PC 1500 at http www PC
4. 1500 info When the CE 159 is used as a RAM area the reserve area can be secured inside the mod ule as illustrated The reserve area inside the PC 1500 can be cleared The BASIC program is written from the CE 159 while variables are secured from the PC 1500 With the CE 159 connected to the PC 1500 the total memory capacity becomes 10 K bytes including the reserve area When used as a RAM area this memory capacity makes it possible to write a program secure variables change and write the reserve contents When an exclusive readout area is set writing or program change in this area becomes im Possible Therefore only the remaining RAM area can be used as variables The reserve area can also be made for exclusive use in readouts making writing or program change impossible 5 CELL LIFE AND REPLACEMENT Celt i The life of a lithium cell in the CE 159 is about 5 years at normal temperature 25 C when the CE 159 is connected to the computer and about 2 years when disconnected from the computer The contents of the CE 159 can be therefore retained for these periods of time respective The CE 159 is provided with the following data label 820901 Pe Year month Day 1982 This data indicates the day when the lithium cell is placed in the CE 189 The cell life in the CE 159 is about 5 years or 2 years according to this date under normal tem perature 25 C However it may be shortened depending on an operating e
5. eration and environ ment Operating temperature 0 C 040 C Outside dimensions 40 9 mm W x 48 2 mm D x 8 5 mm H 1 5 8 W x 1 29 32 D x 11 32 H Weight 12 g 0 03 Ibs including cell Accessorie Housing case 3 cover labels Lithium cell built into the CE 159 and instruction Manual PRECAUTIONS The PC 1500 can accommodate only one module at a time Therefore with the CE 159 installed another module cannot be used on the PC 1500 When the CE 159 is disconnected from the PC 1500 the programs and data stored outside the exclusive readout areas cannot be retained If they are needed record them on tape before disconnecting the CE 159 from the PC 1500 With the CE 189 connected to the PC 1500 the programs data or reserved contents restored in the PC 1500 cannot be used Therefore if needed record them on tape before connecting the CE 159 to the PC 1500 When the CE 159 is connected to the PC 1500 be sure to operate the following Cfore ow e PRO mode designation NE Wo exten The NEWO ENTER operation will initialize the state of the computer The initial setting will be executed Never touch the Capacity Set Switch when the Set Switch is turned to the Setting H position Failure to observe this may result in the following Lt key operation or LIST command causes an incorrect display Executing LIST causes the paper feed Part of the program is cleared
6. nvironment Where the temperature is too high or too low causing the program in the exclusive read out area to disappear To prevent this it is recommended that you record the program or data on tape for storage When battery power dectines the following will occur 1 Program execution is not possible 2 Incorrect displays are indicated 3 Errors take place For trouble free operation replace the cell at your nearest Sharp service stations Caution should be taken if there is a lapse of more than 5 years from the date on the cell label or the cell is already experded If installed in the CE 159 it could cause bat tery leakage resulting in damage to the unit 3 Do not sale this PDF All and more about Sharp PC 1500 at http www PC 1500 info 6 MEMORY ADDRESS RW PC 1500 7 MEMORY SET UP SWITCH RW Vool RAM 4 Rw TERMINAL 4 Do not sale this PDF iii 410d S14 ales Jou og s WVHDVIG LINDHID 69SL 39 8 OJU 00S L Od Mmwy dNy Ie 0OSL Od dieus ynoge asou pue IV All and more about Sharp PC 1500 at http Avww PC 1500 info 9 CE 159 PARTS POSITION CHART EEBResister EZA Capaeitgr 006 Ter 6 Do not sale this PDF All and more about Sharp PC 1500 at http www PC 1500 info 10 PARTS LIST amp GUIDE
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