SERVICE MANUAL - sharp pc-1600
Contents
1. E E C C E O A gt z N _ ojo N N Battery insulator sheet PRES CA TONTE G Rg a am 1 B A 2 x ss Bee S Tere ANS LA A AA BCU REELS AF ICON 1 A A 1 Zee 1L L7 7 7 4G4 44 amp EEE ERE AX eae ESE IS TESORO A erar eat BSC ELE ROD A a E CP ZE Topo 2 EC ZZ AA 1 c P Net ae Shield plate 12 DUNTKI 2 09 EC ZZ VIBRE SNS S E RAMEN ORI sys CO M A 3 o0 nim 13 P STEEP O LTEDZ ZSI EC Sa NC A O a 0 j IMS PRCTIZU GCE ZORRO E PUC a S oon v ie 7 GOA B CI2 6 TLC RO MENOS T DOI SSS a 16LGGABA10098EG2S SSE AI S SSC s yp DADO CAR UR MEET AP M Io Te s y j 10 9 5W 8 03 4 7 662 2 5 EN A AA CREA IE ANNO VE S EAR AA 102 RIGS ZO EROGO cOE ECT DEM A A TARA j OST CHO DAN 2 DEZA ATEO E SAO ODA NO ZETA r vr eu a x v wn p o e _ en 4o o o c m n o o o o o n 2 nm nm w o o n m c c o N N gt moOjojo mimimimio OjJO XA N O em gt z N z i m _ O ojojojojojoj ojojo N N SIO SELES SE ASS E S dX MEME oh ertt cient l CREEL Se eS US A e rrr EI BD LA A o 0 A j VHi 4325 E AAA 2 gt A IA Ever VO AAT O A C C C S ll L COSV R S PBDE GAI 14A 1 C A A C j BUDE AA AS AB de a es OTAS E Bk STR i OR ie One er EMR A Ee he o o o LI e eren m j GES VES AAA A EA TE IA A AN _ 20 PPACGIO EE Re cono S n a a T a 205 TCAUH1 0 NAAA EA AAA EA 206 TCAUZ10 PEA A AE2. area is used for a program memory and the remaining 32KB area for a RAM file C A 32KB area is used for an expansion memory and the remaining 32KB area for a RAM file D A 32KB area is used for a program memory and an expansion memory and the remaining 32KB area is used for a RAM file SHARP CORPORATION CE 1601M 4 Module installation Mode Installation command 1 A Touse the entire module as RAM file O TITLE ENTER 64KB RAM module Usersize Directories NEWO ENTER 61KB 48 Because the contents of the expansion 62 464B memory and data are all cleared they must be saved in another memory device if they are to be used again INIT S2 F ENTER B 32KB oeeie Program memory INIT S2 P ENTER f BASIC testarea 32 571 bytes l Reserve program area i 189 bytes Rest of memory RAM file i C 32KB Q Expansion memory INIT S2 M E ENTER 29 5KB 48 Expansion memory 30 208B SO area increases 32 768 bytes more Rest of memory RAM file I Same value as the cad is used for RAM file D Expansion memory INIT S2 P n ase Program memory n represents the program memory size Ocid number of KB from 2 to 32 32 n KB represent the size of I expansion memory 1 Rest of LLL Rest of memory RAMfile i NOTES Delete all files us
3. CE 1601M SHARP SERVICE MANUAL 1 Specifications Product name RAM module Model CE 1601M Storage 64 K bytes Power source for backup 3V DC lithium cell CR2032 1 Cell life When module is in the computer about 5 years when not in the computer about 20 months when kept at 20 C 68 F Life time varies depending on module usage and environment 0 C to 40 C 32 F to 104 F Height 8 5mm 11 32 Length 40 9mm 1 5 8 Width 42 8mm 1 11 16 Weight 159 including the cell Accessories supplied Case cover labels 3 space cover lithium cell inserted in the module operation manual Temperature Dimensions 2 Parts identification Protect switch Protect switch When the switch is set to the side marked with a e mark the RAM module is write prohibited so that the RAM contents may not be erased and changed When the switch is set at the other side the write protect is released To prevent incidental power off after the write protect is set a tabel is attached to the switch area w Label Terminal cover CODE 00ZCE1601MSME MopEL CE 1601M 3 Operation The CE 1601M must be mounted in the PC 1600 memory slot S2 If mounted in the memory slot S1 the computer may not perform properly or data may not be written properly in the RAM module There are following four ways of using the RAM module A The entire 64KB area used as a RAM file B A 32KB
4. c0 03 000 0000 000 0 1 6 mi ERE 20 EO AL N D ua 5 8 L lLZL11 LL L 1t1 1 L L1 n EN IA EA DUINNNRUNEMEMS L L llo ll 1 3 1j CI A A AAA A DO A A o o D nr C SAI SPAKCO265EC22 AK IA 7 0 LL Bmecc el i e oloejie mieljejoeljeje w ce mqm mo o o rj o o o 2 oj o o j eje IE CE 1601M SHARP COPYRIGHT O 1987 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 CORPORATION Information Systems Group Quality amp Reliability Control Center Yamatokoriyama Nara 639 11 Japan 1987 February Printed in Japan S
5. ing the KILL command 1 It is not possible to change the RAM module mode if there is oType TITLE n 7 ENTER NEW 0 ENTER to clear the data already existing in the module contents of pr PERI NEW ENT One of the following operations is required in order to change oType TITLE NEW E to clear the contents of the RAM module mode the expansion memory 5 Memory map Map seen from the SC7852 Address gt Bank 2 Japan only C000H NOTE Among RAM ROM module of the Slot S2 only the vertical bank 0 can be used for program memory or expansion memory The remain ing banks 1 to 7 can only be used for RAM ROM file T Vertical bank 32KBX2 ee or S NA 2 CE 1600M 32KB RSE or CE 1620M gt The vertical bank of S2 is selected when data of 0 to 9 are written in 28H of the I O space Write only CE 1601M 6 Precautions 7 Service precautions 1 When the computer is reset while accessing a file in this RAM 1 All parts must be closely attached on the PWB module NEWO may be displayed Push the CL key to clear 2 Pin of the dip switch soldered must be cut not longer than 1 5mm the display The contents of the main memory and RAM module at a maximum memory are still retained in this case 3 To check current add 3VDC across battery terminal and diode 2 See the description below for the function of the write protect anode It must be less than 9zA Switch DIP SW Func
6. tion Note Ammeter in microampere Enables to write data range 104A in the module e side Disables to write data Above A and B are in the module ROM permitted module 3 To replace battery cell without connection of the AC adapter to the PC 1600 the RAM module must be removed from the PC 1600 if the RAM module is being used as a RAM file or program file After replacing with fresh battery all reset the PC 1600 before mounting the RAM module Because program or data within the expansion memory are cleared after replacing battery the memory contents must be saved on the floppy disk or cassette tape if it should be used again 8 Parts signal layout chart DIP SW X From 87 Feb product D43256G 12L CE 1601M 9 Circuit diagram epis Ol epis Vueneg 09S vU MEL t 99 Bg Geeta HII CEZA d REA DT ima H dai asas iis P ult lv HN Boar aly HY G i 6v FY ej 90 F E tN Issa oe tv HN faa ie 3v Me ESA fal za fe wv HW fil wv AN fy ta ise v jJ ELL el HY A PO 29313232342233 NV 1219 TF 9952 r adff Tet T1Sh yonpod qe4 48 WO4 BOS a EEEEFEFFEFEEE e Qu e 23 3 er dm mi or QNO Loz 99 O K K gt q 8 y le J d y O ppp gt D eo o D 5 Z80235 41 D Z02Nva MS 1991014 CE 1601M 10 PARTS LIST amp GUIDE mo parts CODE p uw rank DESCRIPTION O E E E E E E E
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