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Mitsubishi Electric apricot XEN-LS Installation Manual

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ADD-ON INSTALLATION GUIDE
XEN-LS
apricot
MITSUBISHI ELECTRIC

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  Summary of Contents for Mitsubishi Electric apricot XEN-LS

  • Page 1 ADD-ON INSTALLATION GUIDE XEN-LS apricot MITSUBISHI ELECTRIC...
  • Page 2 All rights reserved; no use or disclosure without written consent. Copyright © Apricot Computers Limited 1991 Published by Apricot Computers Limited 3500 Parkside Birmingham Business Park B37 7YS MITSUBISHI ELECTRIC Printed in the United Kingdom Part no. 14809731...
  • Page 3: Table Of Contents

    Contents How to use this guide 2 Installing an expansion card 3 Installing a memory module 5 Installing a coprocessor 8 Installing an external 5.25" floppy disk drive 10...
  • Page 4: How To Use This Guide

    How to use this guide This guide contains simple, step-by-step instructions for installing add-on options in your Apricot XEN-LS computer. Together with the XEN-LS Owner’s Handbook , this guide should be your only source of information when installing: * AT/ISA expansion cards...
  • Page 5: Installing An Expansion Card

    Installing an expansion card The XEN-LS’s internal three-slot AT/ISA expansion card cage can hold the following card configurations: Slot Maximum card size three-quarter length (298 x 105 mm) middle full length (348 x 100 mm) bottom half length (160 x 100 mm) Expansion cards cannot be fitted while the cage is in the computer;...
  • Page 6 5. Remove the expansion card from its anti-static wrapping. Take hold of the card by its edges, but avoid touching its electrical contacts. Firmly but carefully, push the card into the chosen expansion slot. It will only go in one way. Keep the card upright as you insert it so as not to place any strain on the connectors.
  • Page 7: Installing A Memory Module

    Installing a memory module An Apricot XEN-LS’s system memory can be extended to a maximum of 8 Mbytes by fitting one memory module. Modules with a variety of capacities are available. Your choice of module depends on how much motherboard memory you start with, which is different for different XEN-LS models.
  • Page 8 Installation Do not remove the memory module from its anti-static wrapping until you are ready to install it. To install a memory module: 1. Take suitable anti-static precautions as described in the XEN-LS Owner’s Handbook . 2. Switch off the computer and disconnect it from the AC power supply.
  • Page 9 6. 2 Mbyte and 4 Mbyte modules have a row of three switches along one edge (1 Mbyte, 6 Mbyte and 8 Mbyte modules do not have switches). The correct position of these switches depends on which XEN-LS model you have. LOCATING POSITION 1 POSITION 2...
  • Page 10: Installing A Coprocessor

    Installing a coprocessor Apricot supply three coprocessor add-ons for XEN-LS machines: * Intel 80387SX-16 for the XEN-LS 386SX-16 * Intel 80387SX-20 for the XEN-LS 386SX-20 * Intel 80487SX-20 for the XEN-LS 486SX-20 Note that your XEN-LS may have already been fitted with a coprocessor either during manufacture or by your supplier.
  • Page 11 4. Remove the coprocessor from its anti-static wrapping. Hold it only by its edges; do not touch the pins. The coprocessor may come in a pack with some PAL chips; these chips are not required for a XEN-LS. 5. The coprocessor has a positioning guide in the form of a small notch or circular recess at one corner;...
  • Page 12: Installing An External 5.25" Floppy Disk Drive

    Installing an external 5.25" floppy disk drive The Apricot external 5.25" floppy disk drive connects directly to the XEN-LS motherboard by a ribbon cable and is powered from the DC outlet at the rear of the system unit. The ribbon cable is threaded out of the back of the system unit through a vacant expansion slot.
  • Page 13 Installation To fit an external 5.25" floppy disk drive: 1. Take suitable anti-static precautions as described in the XEN-LS Owner’s Handbook . 2. Switch off the computer and disconnect it from the AC power supply. Remove the system unit cover, the expansion card cage and the bridge assembly as described in the XEN-LS Owner’s Handbook .
  • Page 14 5. Plug either connector X or Y into the motherboard as shown in the diagram opposite. Use connector X if the 5.25" drive is to be drive A; use connector Y if you want it to be drive B. 6. Refit the bridge assembly. 7.
  • Page 15 APRICOT COMPUTERS LIMITED 3500 PARKSIDE BIRMINGHAM BUSINESS PARK BIRMINGHAM B37 7YS. MITSUBISHI ELECTRIC Part No 14809731 Revision 01...