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XEN-PC OWNER'S HANDBOOK

3/1

Operating the Apricot XEN-PC

Chapter 3

OPERATING THE APRICOT
XEN-PC

This chapter contains all you need to know for the day-to-day
operation of an Apricot XEN-PC system. Note that the monitor
has its own User’s Guide.

Read the separate

Power Connection Guide

before using

the Apricot XEN-PC for the first time.

Содержание XEN-PC apricot

Страница 1: ...apricot XEN PC OWNER S HANDBOOK MITSUBISHI ELECTRIC ...

Страница 2: ...Chapter OWNER S HANDBOOK ...

Страница 3: ...s not represent a commitment on the part of Apricot Computers Limited Any software described in this manual is furnished under a license agreement The software may be used or copied only in accordance with the terms of this agreement It is against the law to copy any disk supplied for any purpose other than the purchaser s personal use All rights reserved no use or disclosure without written conse...

Страница 4: ... irreparably damaged TurnofftheApricotXEN PCandunplugallpowercordsbefore movingthesystemunit cleaningthecomputerorremovingthe system unit top cover The CD ROM drive contains a laser system which is harmful to the eyes and is classified as a CLASS 1 LASER PRODUCT accordingtoIEC825RadiationSafetyofLaserProducts Equipment Classification Requirements User s Guide Do not attempt to disassemble the CD R...

Страница 5: ...ure that you use a power cord and plug which complies with the safety standards of that country Plug Standard Countries 250V E L N BS1363A United Kingdom Austria Belgium Finland E N L 250V SHUCO France Germany Holland Italy Norway Sweden 250V N L E SRAF 1962 Denmark DB16 87 E N L 125V NEMA 5 15P USA Canada 250V ASE 1011 Switzerland 250V AS 3112 1981 Australia The power cord fittings must bear the ...

Страница 6: ...n should be employed when adding the replacement plug The wires in the mains lead are coloured in accordance with the following code Green andYellow Earth Blue Neutral Brown Live As the colours of the wires in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug proceed as follows The wire which is coloured green and yellow must be c...

Страница 7: ...r has been tested and found to comply with the RF emission limits for an FCC Class B computing device which is intended to provide reasonable protection against such interference in a residential installation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference with radio or television reception which can be determine...

Страница 8: ...Chapter CONTENTS ...

Страница 9: ...2 7 Using Apricot Help 2 8 3 Operating the Apricot XEN PC Using the front panel controls 3 2 Using the 3 5 diskette drive 3 3 Using the 5 25 floppy disk drive 3 4 Using the SLCD CD ROM drive 3 5 Using the Irwin FTD tape drive 3 7 Using the SCSI QIC tape drive 3 9 Using the SCSI DDS or DDS DC tape drive 3 12 Using the SCSI CD ROM drive 3 17 Using the Apricot XEN PC abroad 3 21 4 Caring for the Apri...

Страница 10: ...ng SETUP 6 1 Using SETUP 6 1 Initial menu 6 3 System configuration 6 4 Basic System Configuration 6 5 Date 6 6 Time 6 6 Diskette Drives 6 7 Fixed Disk Drives 6 7 System Memory 6 8 Math Coprocessor 6 8 Video display 6 8 Serial port 1 settings 6 8 Memory Test 6 8 Fixed Disk Black Mode 6 8 Advanced System Configuration 6 9 Shadow RAM 6 9 Cache 6 10 System Speed 6 10 Memory at 15MB 16MB 6 10 Fixed Dis...

Страница 11: ...arts 7 4 A Inside the Apricot XEN PC Anti static precautions A 2 Removing the top cover A 3 Configuring expansion cards A 4 Motherboard jumper settings A 12 Hard disk drive types A 15 B Technical Information Specifications B 2 Physical characteristics B 6 Electrical characteristics B 7 Port characteristics B 8 ...

Страница 12: ...Chapter INTRODUCING THE APRICOT XEN PC Chapter1 ...

Страница 13: ...PC Chapter 1 1 INTRODUCING THE APRICOT XEN PC TheApricotXEN PCisideallysuitedforuseasgeneral purpose personal computers networked business workstations and workgroup servers ReadtheseparatePowerConnectionGuidebeforeusing the Apricot XEN PC for the first time ...

Страница 14: ...east 512 kbytes of video RAM supporting various high resolution and multicolour display modes View the Apricot Help provided on your hard disk drive to find out what enhanced modes your system supports Integrated Drive Electronics IDE disk drive system Extendedkeyboard two buttonmouse parallelanddual serial ports 1 44 Mbyte 3 5 diskette drive 3 5 hard disk drive bay with room for two one inch driv...

Страница 15: ...as a hard disk More elaborate systems may include software or hardware options with accompanying installation diskettes and additional documentation Some of these options may have been factory configured or installed by your Apricot supplier Keep the cartons boxes and packaging materials you will need them again if you have to transport the computer elsewhere Makeanoteofthemanufacturer sdatarecord...

Страница 16: ...1 4 XEN PC OWNER S HANDBOOK Introducing the Apricot XEN PC Chapter 1 2 1 3 4 5 ...

Страница 17: ...eft to right lights when a diskette floppy disk or Irwin tape drive is accessed depending on the operating system lights when a hard disk drive or SCSI tape drive is accessed depending on the operating system 3 door shown closed hinges down to reveal the removable media drive bay 4 3 5 diskettedrive fittedasstandardineveryApricot XEN PC system 5 system lock prevents unauthorized access to the insi...

Страница 18: ...1 6 XEN PC OWNER S HANDBOOK Introducing the Apricot XEN PC Chapter 1 11 12 10 1 3 9 10 2 4 5 6 7 8 13 ...

Страница 19: ...ud to 9600 baud typically used for connecting an external modem or a serial printer signal cable 7 serial port 2 110 baud to 9600 baud typically used for connecting an external modem or a serial printer signal cable 8 parallel port typically used for a printer signal cable 9 monitor port connect the monitor signal cable to this port if you are using the on board Apricot Advanced Graphics system 10...

Страница 20: ...d by a drive controller card 3 SIMM sockets every XEN PC has 4 Mbytes of motherboard memory which can be upgraded to 36 Mbytes by the use of single in line memory modules 4 processor socket insert an OverDrive processor here to upgrade the processing power of your Apricot XEN PC 5 5 25 removable mediadrivebay maybeoccupied by a removable media drive 6 3 5 hard disk drive bay this bay has room for ...

Страница 21: ...Chapter Chapter2 GETTING STARTED WITH THE APRICOT XEN PC ...

Страница 22: ...e connect power and configure the Apricot XEN PC If you are familiar with the operation of personal computers this chapter will probably tell you all you need to know in order tostartworkingwithyourXEN PC Chapter3 Operatingthe Apricot XEN PC has more information about the use of the various disk and tape drives with which the XEN PC may be fitted ReadtheseparatePowerConnectionGuidebeforeusing the ...

Страница 23: ...t monitorand keyboard take into account any local or national regulations relating to ergonomic requirements For example youshouldensurethatlittleornoambientlight is reflected off the monitor screen as glare and that the keyboard is placed in a comfortable position for typing GivetheXEN PCplentyofroomsothataircancirculate on all sides Air is drawn into the system unit through the vent on the left ...

Страница 24: ...ed there If necessary the AC voltage setting of the Apricot XEN PC can be adjusted by the voltage selection switch on the rear of the system unit see the section on Using the Apricot XEN PC abroad inChapter3 OperatingtheApricotXEN PC Note that the monitor s voltage setting will probably also need adjusting consulttheUser sGuidethataccompaniesthemonitor or ask your Apricot supplier for help The Saf...

Страница 25: ...mistake 4 Connect the system unit and peripheral power cords to nearby grounded AC power outlets 5 If your AC power outlets have switches set them to their On positions Your Apricot XEN PC is now ready to use The rest of this chaptertellsyouhowtoturnyourXEN PConandoff andhow to configure it using the built in SETUP utility Turning on and booting the computer Turning the To turn on the Apricot XEN ...

Страница 26: ...ormation held in the computer s system memory will be lost when you turn off the computer Always turn off any attached peripherals first particularly a printer attached to the parallel port If you are logged in to a network log out before turning off the computer Similarly close down or exit from any software which employs virtual memory or disk caching for example Microsoft Windows v3 1 with SMAR...

Страница 27: ...s the Current fixed disk drive is 1 To switch attention to the slave drive choose Select next fixed disk drive option 5 from the main menu Of course you may also want to use Fdisk to repartition the master drive If you decide to do this be sure to make a back up copy of all the information on the drive first including MS DOSitself asrepartitioningwillcausethemasterdrive sexisting contents to be lo...

Страница 28: ...ns to declareitshardwarecomponents suchastheamountofmemory it has or the type of monitor and to say how you want them to be used Configuring your computer is often necessary to ensure that the software you use can recognise and exploit the system s capabilities Theconfigurationdataiskeptinaspecialpartofthecomputer s memory known as configuration memory or CMOS memory This memory is sustained by a ...

Страница 29: ...isplayed one screenful at a time using the DOS Type command for example type helpfile txt more Viewing Windows help files can be displayed only by the Microsoft Windows Windows Help program v3 1 or later help files If your computer has a hard disk on which Apricot has pre installed either Microsoft Windows or Windows for Workgroups copies of some Windows help files may already be available as icon...

Страница 30: ...om the diskette to a hard disk or network drive 2 ChooseNewfromtheFilemenuinProgramManager SelecttheProgramItemoptionintheNewProgram Object dialog box then choose OK The Program Item Properties dialog box appears 3 IntheDescriptiontextbox typethetitleofthediskette from which the help file was copied 4 In the Command Line text box type the path and filename of the help file including its hlp extens...

Страница 31: ...Chapter Chapter3 OPERATING THE APRICOT XEN PC ...

Страница 32: ...pter 3 3 OPERATING THE APRICOT XEN PC This chapter contains all you need to know for the day to day operationofanApricotXEN PCsystem Notethatthemonitor has its own User s Guide ReadtheseparatePowerConnectionGuidebeforeusing the Apricot XEN PC for the first time ...

Страница 33: ...ON The POWER button is used to turn the computer on and off The greenindicatorinthebuttonlightswhenthesystemispowered This button also controls the power supply through the AC power outlet to the monitor There are two activity indicators on the front panel Inactive Active Meaning when active TheXEN PCisusinga3 5 diskette drive a 5 25 floppy disk drive or an FTD floppy tape drive The XEN PC is usin...

Страница 34: ... disk surface The drive automatically moves the shutter aside to read the diskette Never touch the exposed surface under the shutter Keepdisketteswellawayfromdust moisture magneticobjects and equipment that generates magnetic fields Also avoid extremes of temperature and exposure to direct sunlight Otherwise data recorded on the diskette may become corrupted Inserting a Insert the diskette into th...

Страница 35: ...reate rename or delete any files PROTECTED UNPROTECTED Using the 5 25 floppy disk drive Your Apricot XEN PC may be configured with a 5 25 floppy disk drive This drive can read and write double sided disks with a formatted capacity of either 1 2 Mbytes if marked HD or high density or 360 Kbytes if marked DD or double density Each floppy disk is sealed into a flexible plastic envelope with a long ro...

Страница 36: ...l protecting notch in the edge of the disk envelope with a self adhesive tab a floppy disk such tabs are typically supplied with new floppy disks With the tab in this position you can read or print files from the disk but you cannot create rename or delete any files WRITE PROTECT NOTCH WRITE PROTECT TAB AFFIXED Using the SLCD CD ROM drive Your Apricot XEN PC may be configured with an SLCD CD ROM d...

Страница 37: ...button on the front of the drive to eject the compactdisc platter halfway out of the drive note that the EJECT button will not work unless the computer is turned on Pull the platter out to its fullest extent Place the CD face up on the platter and push the platter in until it engages with the drive mechanism Wait for the CD to spin up to speed before attempting to read from it Removinga Beforeatte...

Страница 38: ...D tape drive Your Apricot XEN PC may be configured with a 120 Mbyte Irwin FTD floppy tape drive The Irwin FTD is so called because it uses the on board diskette floppy disk interface and so does not require an additional drive controller card like most other tape drives The software required to control the tape drive depends on your operating environment ask your Apricot supplier for details Note ...

Страница 39: ...activityindicator must be unlit 2 Press the eject button then pull the cartridge carefully out of the drive slot holding it between thumb and forefinger 3 Returnthecartridgetoitsplasticholder Thisprotects the cartridge and prevents dust from collecting on the surface of the tape Write Acartridgeisnormallywriteprotectedbutcanbewrite enabled enabling by sliding the tag labelled RECORD in the directi...

Страница 40: ...an read and write in QIC 150 and QIC 120 formats Both drives can also read from but not write to a QIC 24 formattedtape The drive automatically senses the cartridge type and uses the maximumdensityQICformatpossibleforthatcartridge thereby giving its nominal capacity unless the cartridge has already been used in a lower density format Apricot does not supply support or recommend the use of 1000 ft ...

Страница 41: ...ge 2 Remove the cartridge from its plastic holder 3 Insertthecartridgeasshownbelow Pushthecartridge gently into the drive as far as it will go 4 Push the control lever to the right to engage the mechanism Removinga 1 Do not attempt to remove the cartridge while it is cartridge being accessed by the computer that is while the green indicator is lit 2 Push the control lever to the left to release th...

Страница 42: ...ape Write A cartridge can be write protected by turning the circular plastic protecting plug in the top left corner of the cartridge so that it points to a cartridge SAFE The plug can be turned with a screwdriver or the edge of a coin SAFE SAFE SAFE POSITION UNSAFE POSITION With the plug in this position data can be read from the tape but not written to it Keep your tape cartridges well away from ...

Страница 43: ...transparent to the host software TheDDS DCdriveisillustratedbelow theDDSdriveissimilar except that the LED indicators andEJECT button are in different positions The way you use the drive and the meaning of the indicators is the same for both types CASSETTE IN PLACE GREEN DRIVE BUSY AMBER EJECT BUTTON CASSETTE INSERTION SLOT The DDS DC and DDS drives use standard 60 metre or 90 metre digital casset...

Страница 44: ...nominal maximum capacity of 5 2 Gbytes on a 60 metre cassette or 8 0 Gbytes on a 90 metre cassette the sustainedtransferrateisincreasedbythesameratio However the actual compression ratio and transfer rate achievable in any particular case depend on the characteristics of the data being compressed and may be higher or lower than these nominal figures Interpreting There are two LED light emitting di...

Страница 45: ...s become unreliable Remove the cassette and use another Hardware error or high humidity If the Drive Busy amber LED flashes rapidly this indicates either a hardware error or dew high humidity If this happens soon after powering up the computer the drive s diagnostic test may have failed in which case the drive will not operate Request help from your Apricot supplier or an authorized Apricot mainta...

Страница 46: ...tten to it Remember to allow time for the formatting process when you use a new tape Removing Before attempting to remove a cassette ensure that the drive a cassette is not currently in use the amber Drive Busy indicator must be unlit Press the EJECT button on the front of the drive depending on your operating environment the EJECT button may be disabled while the drive is in use If the tape is wr...

Страница 47: ...ine if the cassette needs to be copied and replaced Keep your cassettes well away from magnetic objects and equipment that generates magnetic fields Avoid extremes of temperature and exposure to direct sunlight otherwise the data recorded on the tape may become corrupted Using the SCSI CD ROM drive Your Apricot XEN PC may be configured with a SCSI CD ROM Compact Disc ROM drive The software require...

Страница 48: ...call an authorized Apricot maintainer Inserting a The SCSI CD ROM drive uses a special removable disc caddy compactdisc to hold a CD within the drive mechanism The caddy has a metal shutter that guards the disc s surface the drive automatically moves the shutter aside to read the disc One disc caddy is provided free with the drive more can be obtained from your Apricot supplier Use only disc caddi...

Страница 49: ...pointing towards the drive that is shutter end foremost Push the caddy in until it is completely swallowed up by the drive Thedrivebeginsreadingthedisc stableofcontents Thedrive s activity indicator lights while the table of contents is being read When the activity indicator goes out the drive is ready for use If the activity indicator remains on this may indicate that the disc is not properly pos...

Страница 50: ...D ROM drive In this case pressing the EJECT button will have no effect Toejectthedrawermanually forexample afterapowerfailure you must first ensure that the computer is turned off Then insert a thin metal rod such as an unwound paper clip into the emergency eject hole and push hard see below The rod must be at least 35 mm long COMPACT CADDY LOADED Caringfor Keep CDs and caddies well away from dust...

Страница 51: ...at the Apricot XEN PC is set to the correct voltage range before use If not the machine may be irreparably damaged The voltage setting of the monitor must always be the same as the voltage setting of the system unit See theUser s Guide that accompanies the monitor or consult your Apricot supplier to find out how to change the voltage setting MakesurethattheApricotXEN PCanditsmonitorarereturned to ...

Страница 52: ...Chapter Chapter4 CARING FOR THE APRICOT XEN PC ...

Страница 53: ...E APRICOT XEN PC This chapter provides information on how to care for your computer The Apricot XEN PC requires little physical maintenance other than occasional cleaning But you must take care when transporting it to avoid damage to its delicate components particularly the hard disks ...

Страница 54: ... use cleaning fluids or sprays near air vents ports or removable media drives Occasionally wipe the system unit with a soft slightly damp lint free cloth Occasionally wipe the air vents on the rear and sides of the system unit Dust and fluff can block the vents and limit the airflow Occasionally clean the diskette drive using a proprietary head cleaner The Occasionally wipe the monitor with a soft...

Страница 55: ...hake it do not probe between the keys as this may cause damage The mouse Dust and dirt may accumulate in the ball tracking mechanism of the mouse To clean the mouse 1 Unplug the mouse turn it upside down and locate the plastic cover that holds the ball in place Depending on the model the plastic cover can be removed either by rotatingitcounter clockwiseorbyslidingitforwardslightly 2 Remove the cov...

Страница 56: ...eantheheadandcapstanthoroughly before concluding that the drive or your tapes are defective Theread writeheadandthecapstanareaccessiblethroughthe flip up drive door as shown below Although it is possible to use special kits to clean the drive Apricot recommends the use of 90 isopropyl alcohol and several non abrasive lint free swabs as follows 1 Gently rub an alcohol dampened swab against the surf...

Страница 57: ...dedwiththiskit It is also advisable to clean the tape drive after the first use of a new tape The SCSI DDS The read write heads in the tape drive are protected during or DDS DC normal operation by a built in cleaning roller In addition a tape drive specialcleaningcassetteisavailablefromyourApricotsupplier This cassette should be used Every 25 operating hours When a media warning status is indicate...

Страница 58: ...requivalent Whenthebatteryisdischargedthecontentsoftheconfiguration memory will not be maintained while the XEN PC is switched off If you have to reconfigure the computer every time you switchiton thebatteryhasdischargedandneedstobereplaced Replacing The battery holder is located on the motherboard behind the the battery 5 25 drive tray 1 Power the system down 2 Take suitable anti static precautio...

Страница 59: ...efore moving the computer Use common sense when handling the Apricot XEN PC hard disks in particular can be damaged if the computer is dropped or handled roughly As a precaution back up copy the contents of your hard disks to tape or diskettes before moving the computer Don t try to move the computer while it is plugged into the AC power supply or with any other cables including network cables sti...

Страница 60: ...Chapter Chapter5 UPGRADING THE APRICOT XEN PC ...

Страница 61: ...pgrade youmaywishtohaveyoursupplier or service organisation install it for you Beforeyoustartinstallingtheupgradeyoushouldbethoroughly familiar with all the relevant instructions Warning Never carry out any work on the equipment with power applied Always switch off at the mains and remove the power lead from the equipment before starting work Appendix A at the rear of this manual provides a guide ...

Страница 62: ...SSOR SOCKET BLANKING PLATES BRACE int l e OVER D R I V E ISA expansion cards Expansioncards sometimesknownasexpansionboards options oradapters aresmallself containedcircuitboardswhichextend the capabilities of your computer Here are just two examples A graphics card can provide more specialized video functions than those offered by the on board Apricot Advanced Graphics system When a graphics card...

Страница 63: ...tion Installation of an expansion card in the XEN PC is a simple processrequiringtheremovalofonlythesystemunitcoverand a blanking plate The following instructions and illustrations describehowtoinstallacardinasimplestep by stepsequence 1 Power the system down 2 Take suitable anti static precautions and remove the system unit cover IfyouareunfamiliarwithApricot srecommendedanti static precautions a...

Страница 64: ... in the lowest slot If you are installing a drive controller card that you want to connect to a drive in the 5 25 drive bay it is easiest to install it in the top slot Toremovetheblankingplate firstunscrewthesecuring screw then slide the plate out of its slot Keep the screw you will use it later to secure the card 5 Yourarenowreadytoinstallthecard However before youdosoyoumustfirstensurethatthecar...

Страница 65: ...ane 8 Carefully push the card fully home Do not apply excessive pressure 9 Secure the card by replacing the screw that you removed in step 4 10 Connect any signal cables to the card Note If you have installed a video display adapter that is CGA EGA or VGA compatible you must disable the motherboard video adapter by removing a jumper If you do not remove this jumper it is unlikely that either the v...

Страница 66: ...city memory 4 4 8 4 4 12 4 4 4 16 4 8 4 20 16 4 24 16 4 4 28 16 8 4 36 16 16 4 Note In order to use the lowest ISA expansion slot SIMMs installed in XEN PC must be a maximum of 1 high The use of SIMMs taller than 1 prevents an expansion card being installed in the lowest slot Installation In order to install a memory upgrade you must 1 Power the system down 2 Take suitable anti static precautions ...

Страница 67: ...ingers 2 Place your thumbs on the top edge of the SIMM and move it gently towards the vertical 3 When the SIMM has rotated through 20 taking care to avoid touching any of the components on the SIMM grip the top corners of the SIMM between thumb and firstfingerandcarefullypulltheSIMMoutofthesocket Inserting a SIMM From the table of possible SIMM combinations decide which SIMM capacity will be insta...

Страница 68: ... place Do not use excessive force If the SIMM will not rotate easily remove it and start again 5 IftheSIMMisproperlylocatedtheSIMMshouldremain in position held by the securing clips and with a small plasticlugthroughtheholesoneithersideoftheSIMM If you want to install a second SIMM repeat the process above Once you have completed installation you can replace the adapters and the system unit cover ...

Страница 69: ...usingthesamepinoutasoneofthese processors could also be installed subject to the same 33MHz maximum external clock speed restriction 1 Power the system down 2 Take suitable anti static precautions and remove the system unit cover If you are unfamiliar with ApricotÕs recommended anti staticprecautionsand ortheprocessofremoving the system unit cover refer to the appendices at the rear of this manual...

Страница 70: ...You may need to twist the extractor gently from side to side to work the prongs into place Becarefultoensurethattheprongsdonotgobetween the motherboard and the socket 6 Ease the processor up slightly by pushing inwards on the extractorÕs handle Warning Do not push hard on the handle The processor must be removed gradually and evenly by working the tool under eachedgeinturn Attemptingtoliftoneedgeo...

Страница 71: ...ut of the systemunitandplaceitontheanti staticfoamprovided with the upgrade processor Installation 1 Theupgradeprocessorandsocketarekeyedtoensure that the processor can only be installed in one orientation The inside of one corner of the socket has a key hole the outside of the same corner is missing three holes The processor has a positioning guide in the form of a small dot of paint Use the foll...

Страница 72: ...R IN CENTRE UNOCCUPIED HOLES ON EACH SIDE int l e OVER D R I V E Warning If the processor is misaligned it will not go into the socket and any attempt to force it will damage the processor or the socket or both 3 Gently insert the upgrade processor making sure that it is correctly aligned with the socket and that you do not bend or otherwise damage the pins 4 Once you are certain that all the pins...

Страница 73: ...stemthenew processor will work Configuring The XEN PC motherboard supports 25 and 33 MHz the motherboardclockspeeds Theclockspeedisconfiguredusing motherboard a jumper near the processor socket Itisvitalthatthesystemclockspeed issetcorrectly Followthe instructions below to check the jumper setting and adjust it as necessary 1 Use the following illustration to identify the jumper JUMPER int l e OVE...

Страница 74: ... interface to the motherboard The labelling on the OverDrive processor or its packaging should make it clear what its external interface speed is 5 Having decided which selection you require check the positionofJP7 andifnecessarymoveittotheappropriate position 6 Youshouldbynowhave identifiedtheprocessorsocket removed the processor installed the new processor and set the system clock speed If you a...

Страница 75: ...he system unit cover IfyouareunfamiliarwithApricot srecommendedanti static precautions and or the process of removing the system unit cover refer to Appendix A at the rear of this manual The video RAM sockets connectors are located in the left rear corner of the system unit beneath the adapter card slots In order to install a video RAM upgrade you must remove any adapter cards installed in the sys...

Страница 76: ... orientation The 256k x 4 chips have a cutout at one end this must line up with similar cutout at the front of the sockets The 256k x 16 chips have pin 1 clearly marked pin 1 is also marked on the motherboard at the left end of thesockets When upgrading from 512 kbyte to 1 Mbyte of video RAM the four sockets marked U12 U13 U15 and U16 must all be occupied by 256k x 4 RAM chips When upgrading from ...

Страница 77: ...unit cover IfyouareunfamiliarwithApricot srecommendedanti static precautions and or the process of removing the system unit cover refer to the appendices at the rear of this manual The cache sockets are located at the front of the system unit beneath the 5 25 drive bay and the adapter cards In order to install cache RAM you must remove the 5 25 drive bay and any adapter cards 3 If there are adapte...

Страница 78: ...e sure that they are in the correct orientation The chips have a cutout at one end this must line up with similar cutout at the front of the sockets A 64kbyte cache consists of nine 8Kx8 20ns chips installed in the sockets labelled TAG and U56 to U63 A 128kbyte cache consists of five 32Kx8 20ns chips installed in the sockets labelled TAG U56 U58 U60 and U62 A 256kbyte cache consists of nine 32Kx8 ...

Страница 79: ...ionsapplytoalldrives anddescribe the physical installation of a drive Instructionsspecifictoeachdrivetypearegivenafterthegeneric instructions Generic 1 Power the system down 2 Take suitable anti static precautions and remove the system unit cover IfyouareunfamiliarwithApricot srecommendedanti static precautions and or the process of removing the system unit cover refer to Appendix A int l e OVER D...

Страница 80: ...e the drive later BLANKING PLATE SECURING SCREWS 6 If the drive tray is not fitted with a blanking plate the 5 25 drive aperture in the chassis at the front of the drive bay is obscured by a blanking plate The blanking plate is attached to the top of the chassis and must be removed in order to install a drive in the 5 25 drive bay Open the drive bay door and identify the blanking plate BLANKING PL...

Страница 81: ...stallation in a XEN PC For information on how Apricot supplied drives are configured see the drive specific information following these installation instructions 10 Identify the top and bottom of the drive 11 Restthedrive topdown onasuitableanti staticsurface 12 With the drive bay upside down place it over the drive The front of the drive must be at the end where the blanking plate was fitted 13 L...

Страница 82: ...l they are finger tight COMP ACT SECURING SCREWS 15 Gently tighten the four screws 16 Turn the drive bay over and replace it in the system unit 17 Slide the bay forwards until the two holes in the bay line up with those in the hard drive assembly and the system unit brace 18 Replace the two screws that secure the drive bay ...

Страница 83: ...ed and connected to a power cable You must now connect it to a signal cable Instructions on connecting each of the types of drive to a signal cable is given under the appropriate heading overleaf 5 25 floppy Cabling or Irwin FTD The 5 25 floppy and Irwin FTD drives supplied by Apricot come complete with a suitable signal cable The signal cable must be connected between the signal connector on the ...

Страница 84: ...rdandtherearofthe drive The cable is fitted with three connectors one for the card and two closetogether tocopewithdriveswhichhaveconnectors in different orientations The last connector at the drive end should be fitted with a termination assembly The following illustration shows the suggested routing of the cable int l e OVER D R I V E SCSI CABLE The illustration above shows the drive connected t...

Страница 85: ...loppy drive remove it 3 Take suitable anti static precautions and remove the system unit cover If you are unfamiliar with ApricotÕs recommended anti staticprecautionsand ortheprocessofremoving the system unit cover refer to the appendices at the rear of this manual Inordertoremovethe3 5 drivebayyoumustfirstremovethe 5 25 drive bay 4 If there is a drive fitted in the 5 25 bay disconnect the power a...

Страница 86: ... hard disk configuration drives In order for the drive or drives to operate they must be correctly configured The IDE interface supports a maximum of two drives These drives are known as Master and Slave A single drive or the boot device in a dual drive system must be configured as Master The second non bootable drive in a dual drive system must be configured as Slave IDE drives are normally confi...

Страница 87: ... up and its connectors away from you Warning If there is a drive in the bay already be careful to ensure that the new drive does not touch it 3 Line up the screw holes on the drive with those in the bay insert the securing screws and tighten them until they are finger tight Note If you are installing a hard disk drive in a system that previously had only a floppy drive there will be two sets of ho...

Страница 88: ...e front bezel and the two screw holes in the bay line up with those in the base of the system unit 3 Replace the two securing screws 4 Connectthe3 5 harddisk s totheirsignalandpower cables 5 Reconnect the 3 5 floppy drive cable 6 Replace the 5 25 bay in the system unit 7 Slide the bay forwards until the two holes in the bay line up with those in the hard drive assembly and the system unit brace 8 ...

Страница 89: ...Chapter Chapter6 USING THE SETUP UTILITY ...

Страница 90: ...mputer is switched off Invoking SETUP The SETUP utility can be invoked at any time using the CTRL ALT ESC key combination You must always ensure that you have closed all files and quit all application programs before enteringSETUP LeavingSETUPautomaticallyrebootsthesystem Using SETUP A number of keys are used to move around the SETUP utility select screens and change the configuration Some of the ...

Страница 91: ...reen Esc The escape key exits the current screen You will be prompted to confirm whether you wish to save anychangesyouhavemade Fromtheinitialscreen use the escape key to exit the SETUP utility Every time you exit SETUP the system reboots F1 TheF1keyenablesacontextsensitivehelpwindow Pressing F1 again disables the window F9 In the Advanced System Configuration screen the F9 key resets the configur...

Страница 92: ...hoice and the return key to select that item System Configuration allows you to modify the hardware configuration settings You should only need to use this when you make some change to the hardware for example upgrade the processor or add an expansion card SystemSecurityallowsyoutoconfigurethemotherboardsecurity features Theseinclude settingpasswords restrictingaccessto floppy and hard disk drives...

Страница 93: ...highlight bar to the item of your choice and the return key to select that item Basic System Configuration uses a two page screen that allows you to modify settings for things like date and time drive types serial port 1 It also displays information on system memory system processor and display type Advanced System Configuration uses a one page screen that allows you modify settings for shadow RAM...

Страница 94: ...40 30 Diskette Drive A 1 44 MB 3 5 inch Diskette Drive B None Fixed Disk 0 40 MB 17 Fixed Disk 1 0 MB None Move Highlights Bar Change settings PgDn PgUp Move Screen F9 Default setting F10 Bootable setting F1 Help Esc Exit Page 1 Base Memory 640 KB Extended Memory 3072 KB Total Memory 3712 KB Math Computer Not Installed Video Display VGA EGA Cylinder 977 Head 5 Sector Track 17 Landing Zone 977 Writ...

Страница 95: ...ting F10 Bootable setting F1 Help Esc Exit Date The SETUP utility shows the system date in month day year format Usetheupanddownarrowkeystoselecttheparameter you want to change then use the left and right arrow keys to scroll through the possible values until you reach the correct one Once the correct date is set you should not need to set it again Time The SETUP utility shows the system date in h...

Страница 96: ... s The SETUP utility provides a number of methods of entering drive type information The simplest method for a single hard disk drive system is to select drive type 255 then press F8 SETUP then interrogates the drive and automatically sets the drive type information Warning If pressing F8 results in a drive type with more than 1024 cylinders you must change the drive type as described below and se...

Страница 97: ...lydetectsthepresenceofacoprocessor Coprocessor and sets the corresponding value in the SETUP program This parameter is displayed for information only and is not user adjustable Videodisplay The system automatically detects the video mode of your primary display and sets the corresponding value in the SETUP program This parameter is displayed for information only and is not user adjustable Serial p...

Страница 98: ... Exit Use the up and down arrow keys to move around the screen and the left and right arrow keys to alter the settings In this screen the F9 key can be used to return all configuration options exceptMemoryat15MB 16MB tothefactorydefaults The default values are those shown in the screen above The F10 key can be used to disable all shadow RAM and the cache to set system speed to low and turn fixed d...

Страница 99: ...ables the processor internal cache and iffitted theexternalcache Thereshouldnormallybenoreason to disable this cache it will result in a performance decrease Someoldsoftwarewhichisspeedsensitivemaynotworkproperly with the cache enabled This problem is uncommon and this option is provided as a safety net System Speed This parameter allows you to slow the ISA bus to 8MHz This may be useful if you ha...

Страница 100: ...s Disk The disk drive parameters allow you to independently control drivecontrol access to hard and floppy disk drives and to restrict which drives are bootable Diskette drive Fixed disk drive Theseparameterscanbesettonormal writeprotectordisable In normal mode the affected drive can perform both read and write operations Write protect blocks all attempts to write to thedrive onlyreadoperationsare...

Страница 101: ...rom drive C I O Ports Serial Ports These options allow each of the 2 serial ports to be disabled or to configured as COM1 COM2 COM3 or COM4 with the corresponding address given below Port Start Address COM1 3F8h COM2 2F8h COM3 3E8h COM4 2E8h Note The two serial ports must be set to different COM ports Attempting to configure both serial ports to the same COM port will result in one port being disa...

Страница 102: ...sure accuracy Power OnPassword This option allows you to set a system password When this option is in operation only people who know the password can use the system To enable the power on password move the highlight bar to Power OnPassword andpresstheleftorrightarrowkey You will then be requested to enter a password of up to seven characters once you have keyed the password and pressed the return ...

Страница 103: ...Chapter Chapter7 TROUBLESHOOTING ...

Страница 104: ...in doubt turn off the computer and unplug all power cords before consulting your Apricot supplier or an authorized Apricot maintainer This chapter is concerned only with problems caused by the Apricot XEN PC itself remember that problems can also arise from other sources such as your network cabling operating system or application software ...

Страница 105: ...stent Persistent POST error messagesmayindicateafaultinyoursystem IfyoupressF1 the XEN PC attempts to boot despite the error indication for example ifamemorychipfailsPOST thecomputercancontinue with less memory If the problem persists make a note of the errormessagesandtheconditionsunderwhichtheyoccur and consultyourApricotsupplieroranapprovedApricotmaintainer Beep codes The XEN PC uses special au...

Страница 106: ... key to continue The hard disk has no active bootable partition or is not formatted Insert a system diskette press F1 and format the hard disk as described in your operating system manuals Fixed disk read failure Press the F1 key to continue Theharddiskmaybedefective PressF1toretry Iftheproblem persists insert a system diskette press F1 back up the data held on the defective hard disk and try refo...

Страница 107: ...y hardware component Problems with the system unit Problem Diagnosis The XEN PC will not start The AC power supply is not switched on when the POWER button is pressed The XEN PC power cord is loose The fuse in the AC plug has blown The power cord is broken inside The power on LED is The LED circuitry is faulty unlit although the XEN PC is working correctly Intermittent problems A cable or cord may...

Страница 108: ...ver the cause of the fault Replace the blown fuse with one of the same rating and try again If the replacement fuse blows call an authorized Apricot maintainer If the replacement fuse does not blow switch off reconnect a peripheral and switch on Repeat this procedure for each peripheral in turn If power is lost when you deliberately flex the cable replace the cord with an identical one obtained fr...

Страница 109: ...s or uses the card is configured incorrectly You may have inadvertently loosened other cards or cables inside the XEN PC The card is faulty A card that used to work You may have inadvertently loosened does not work now the card or its cables inside the XEN PC The card s configuration clashes with that of another card installed later The card is faulty Problems with expansion cards ...

Страница 110: ...N PC components If a diskette came with the card look for a readme file which might contain up to date installation instructions Sometimes the software that drives or uses an expansion card needs to know the card s configuration settings Check the documentation that came with the card or the software Isolate the XEN PC remove the top cover and check Contact your supplier Isolate the XEN PC remove ...

Страница 111: ...have become corrupted by strong magnetic fields or subjected to extremes of temperature and humidity There may be condensation on the surface of the disk The drive cannot write to a The disk may be write protected disk You are attempting to change a file with a read only attribute or for which you do not have the necessary access permissions The disk eject lever will There is no disk in the drive ...

Страница 112: ...ry again If you are using a 51 4 floppy disk check that the write protect notch on the edge of the disk is uncovered Remove any write protect sticker and try again File attributes and access permissions may be set by your operating system Consult your operating system documentation The SETUP utility may also prevent access to the drive Do not force the lever when there is no disk in the drive as d...

Страница 113: ...e drive does not seem The disk may not have been formatted able to read data correctly for your operating system The disk may have become corrupted by strong magnetic fields or subjected to extremes of temperature and humidity There may be condensation on the surface of the disk The drive cannot write to a You are attempting to change a file with disk a read only attribute or for which you do not ...

Страница 114: ...tility Ask your Apricot supplier or an authorized Apricot maintainer for advice A cold system unit brought into a humid room may collect condensation on its hard disks Wait until the system unit has adjusted to room temperature before using it File attributes and access permissions may be set by your operating system Consult your operating system documentation The SETUP utility may also prevent ac...

Страница 115: ...seeped between the keys The keyboard is faulty or the keyboard signal cable is broken inside The numeric keypad does The keypad has not been enabled not seem to work instead of numbers you get cursor controls Problems with the mouse Problem Diagnosis The mouse does not seem The mouse is plugged into the to work or cursor movement keyboard port on the screen is erratic The mouse signal cable is loo...

Страница 116: ...to let the liquid run out and drying it at room temperature for 24 hours If it still doesn t work call an authorized Apricot maintainer Call an authorized Apricot maintainer Press the NUMLOCK key in the top left corner of the keypad The NumLock LED should light Remedy This is easily done as the two ports look identical The keyboard port is the small circular port nearest the power supply Push the ...

Страница 117: ...ntrast controls need adjustment The monitor screen is dirty The monitor power cord is loose The signal cable between the monitor and the XEN PC system unit is loose The monitor signal cable or power cord is broken inside The monitor is faulty A VGA colour monitor The monitor is in the wrong mode displays only in monochrome The monitor signal cable was not connected when the XEN PC was switched on ...

Страница 118: ... plugs in firmly at the AC power outlet and at the monitor power inlet Push the plugs firmly into their ports and tighten the securing screws Replace the signal cable or power cord with an identical one obtained from your Apricot supplier or an authorized Apricot maintainer Call an authorized Apricot maintainer If the monitor has a mode selection switch try switching modes Consult the monitor s do...

Страница 119: ...Chapter AppendixA INSIDE THE APRICOT XEN PC ...

Страница 120: ...ing access to the inside of the Apricot XEN PC system unit Note that instructions for installing upgrade options are provided in Chapter 5 Upgrading the Apricot XEN PC Turn off the Apricot XEN PC and unplug all power cords before removing the top cover Also included here is information on configuring expansion cards and on motherboard jumper settings ...

Страница 121: ...s at risk from static discharge while the top cover is off This is because the electronic components of the motherboard are exposed Expansion cards SIMMs and OverDrive processors are other examples of electrostatic sensitive devices ESSDs All work that involves removing the XEN PC s top cover must be done in an area completely free of static electricity Apricot recommends using a Special Handling ...

Страница 122: ...d food and drink away from your work area and the open computer Removing the top cover 1 TurnoffboththeApricotXEN PCsystemunitandthe monitor 2 If your AC power outlets have switches set them to their Off positions 3 Unplug all power cords from rear of the system unit 4 If the system unit has a caselock on the right hand side turn the caselock key to the unlocked position 5 Loosen the two casing sc...

Страница 123: ...n only be done after the card is installed If you are not familiar with the concepts of interrupts DMA channels memorymapsandI Oportsthefollowingtextattempts to explain what they are and how to decide which option to select For the following explanations it should be understood that a peripheral can be either a subsystem on the motherboard or an expansion card Interrupts The XEN PC like every othe...

Страница 124: ...nd are available for IRQ11 expansion cards IRQ7 Parallel port IRQ7 is not normally used and can be used by expansion cards without affecting the operation of the parallel port It is possible for software to enable the parallel port s use of IRQ7 This is rare but could cause problems with a card using IRQ7 If you are not using the parallel port it can be disabled using SETUP freeing IRQ7 to be used...

Страница 125: ...nsions to the motherboard BIOS providing additional functionality ExpansioncardROM sometimesknownasslotROM mustbe addressedsomewhereintheprocessor smemorymap Anarea of the memory map of an ISA compatible PC is allocated for expansion card ROM If you are unfamiliar with the concept of memory maps and the hexadecimal numbering system the following text attempts to explain them If you are familiar wi...

Страница 126: ...t add 1 to a column that contains 15 before you add 1 to the column to the left As we have no single character to represent the numbers 10 to 15 we substitute the first six letters of the alphabet so that A represents 10 B represents 11 C represents 12 D represents 13 E represents 14 F represents 15 The example number 1019 can then be represented in hex by 4096 256 16 1 16x16x16 16x16 16 1 0 3 F B...

Страница 127: ... versa Another commonly used notation is to describe numbers as xK or xM Where 1K 1024 and 1M 1048576 1048576 1024x1024 In this notation 655360 that is A0000h is 640K Memory maps All memory whether it is on the motherboard or an expansion card is accessed somewhere in the processor s address space The processor s address space can be thought of as a list of locations the locations are each identif...

Страница 128: ...are called memory maps and are a convenient way of representing processor address space BIOS RESERVED EXPANSION CARD ROM VIDEO BIOS VIDEO MEMORY DOS 1M 1 960K 896K 800K 768K 640K FFFFFh F0000h E0000h C8000h C0000h A0000h 00000h 0 Note The top location of this first Mbyte is 1M 1 or FFFFFh This is because in the first Mbyte there are 1M locations starting at 0 Location 1M is the start of the second...

Страница 129: ... to EFFFFh is reserved While address space from 960k to 1M 1 F0000h to FFFFFh is used by the motherboard BIOS When installing expansion cards the area of most interest is between 768k and 896k 1 C0000h to DFFFFh ConfiguringexpansionROM Expansion card ROM is addressed in the C0000h to DFFFFh region of processor address space On the XEN PC motherboard video BIOS is accessed from C0000h to C7FFFh If ...

Страница 130: ...ocumentation supplied with the card to establish which ports if any to use and how to select them I O ports Hex Used by 000 01F DMA controller 1 020 027 Interrupt controller 1 030 037 Interrupt controller 1 040 047 Systemtimer 050 057 Systemtimer 060 06F Keyboard controller 070 07F Real time clock NMI mask 080 09F DMA page register 0A0 0BF Interrupt controller 2 0C0 0DF DMA controller 2 0F0 0F1 Ma...

Страница 131: ...operation of the system The following illustration shows the position of the jumpers JP26 JP24 JP25 JP18 JP22 JP20 JP17 JP10 JP 9 JP 7 JP 8 JP28 JP11 JP12 JP13 JP15 JP19 JP16 JP 2 JP 6 JP 5 JP 4 JP27 JP14 JP 1 Afewofthejumpersaretwopinjumpers theseareeitheropen or closed Open means that there is no clip fitted or if a clip is fitted it is in contact with only one of the jumper pins ...

Страница 132: ...by SETUP JP4 In this implementation pins 2 and 3 must always be connected JP5 JP2 is used to indicate the type of 3 5 floppy drive installed in the system Pins 1 and 2 connected indicate that a normal high density drive is installed pins 2 and 3 connected indicats that a three mode floppy is fitted In this implementation a normal high density drive is always used JP6 JP2 is used to configure the I...

Страница 133: ...re the motherboard forthetypeofprocessorinstalled Inthisimplementationthere is normally no need to adjust the settings Processor JP11 JP12 JP13 JP15 JP18 JP20 JP27 486 1 2 1 2 1 2 1 2 2 3 2 3 OPEN P24T 1 2 2 3 1 2 2 3 1 2 2 3 OPEN JP14 This jumper is used to disable the motherboard VGA When JP14 is open the motherboard VGA is disabled when closed motherboard VGA is enabled The motherboard VGA shou...

Страница 134: ...used to enable the 4Mbytes of RAM soldered to the motherboard When pins 1 and 2 are connected the RAM is enabled when pins 2 and 3 are connected the RAM is disabled There should never be any need to disable the motherboard RAM Hard disk drive types Drive Type ELS85A 45 ELS170A 52 LPS240A 53 LPS525A 58 Generic 80 The generic drive type 80 should be used for drives with more than 1024 cylinders It d...

Страница 135: ...Chapter AppendixB TECHNICAL INFORMATION ...

Страница 136: ...ormation Appendix B B TECHNICAL INFORMATION This appendix provides some technical information about the Apricot XEN PC More detailed information is available in the Hardware Technical Reference which can be purchased from your Apricot supplier ...

Страница 137: ...nced Video RAM 512 Kb 1 Mb or 2 Mb Graphics Resolutions EVGA 1024 x 768 SVGA 800 x 600 VGA 640 x 480 I O ports Serial dual 9 way male D type RS 232 Parallel 25 way female D type Keyboard 102 key AT compatible Mouse PS 2 compatible two button Diskette Capacity 1 44 Mb drive Access time 94 ms average Hard disk Interface IDE drive bay Form factor 3 5 Capacity One 1 6 drive or Two 1 drives Removable F...

Страница 138: ...er 12 cm 8 cm Transfer rate Sustained 150 Kbyte s Burst 2 1 Mbyte s Access time Full stroke 0 95 s typical Average random 0 49 s typical Audio Line 0 7 V at 47 kOhm output Headphone 0 5 V at 32 Ohm Power Voltage 5 V dc 5 requirement 12 V dc 10 Ripple 5 V 0 05 Vp p at 250 mA 12 V 0 1 Vp p at 500 mA Current max 5 V 800 mA at Seek 12 V 1300 mA at Seek or Spin up Laser Type GaAlAs semiconductor Wavele...

Страница 139: ...tion 0 71 A 5 V dc SCSI Performancespecificationsapplywhenusingdatacompression DDS DC Power specifications are measured at the tape drive power tape drive connector and are nominal values Nominal 60 metre cassette 1 3 Gbyte 1 1 base capacity 2 6 Gbyte 2 1 typical 5 2 Gbyte 4 1 max1 90 metre cassette 2 0 Gbyte 1 1 base 4 0 Gbyte 2 1 typical 8 0 Gbyte 4 1 max1 Transfer rate Sustained 366 Kbyte s 1 1...

Страница 140: ...r 12 cm 8 cm Transfer rate Sustained 150 Kbyte s normal from media 300 Kbyte s double Burst across 2 1 Mbyte s SCSI bus 4 0 Mbyte s synchronous Access time Full stroke 550 ms typical normal 520 ms typical double Average 350 ms typical normal 295 ms typical double Audio output Line 0 7 V at 47 kOhm Headphone 0 55 V at 32 Ohm Host interface SCSI 2 Power Voltage 5 V dc 5 specification 12 V dc 10 Ripp...

Страница 141: ...1 Keyboard 40 mm 205 mm 488 mm 1 4 kg 1 depending on configuration Temperature The Apricot XEN PC is designed to operate in a normal office and humidity environment butduringstorageandtransportationthesystem ranges is more tolerant of environmental factors Relative humidity Range Temperature with no condensation Storage Transport 0 to 55 o C 20 to 80 Operational 10 to 35 o C 20 to 80 ...

Страница 142: ...ords The power cord supplied with the Apricot XEN PC complies with the safety standards applicable in the country in which it is first sold If you wish to use the computer in another country you must ensure that you use a power cord which complies with the safety standards of that country Current AC power inlet 4 5 A at 100 120 V ratings 3 0 A at 220 240 V AC power outlet 1 5 A at 100 120 V 1 0 A ...

Страница 143: ...t characteristics Serial ports 9 way male D type COM1 COM2 5 1 6 9 10101 Pin I O Function 1 I Data carrier detect 2 I Receive data 3 O Transmit data 4 O Data terminal ready 5 NA Signal ground 6 I Data set ready 7 O Request to send 8 I Clear to send 9 I Ring indicate ...

Страница 144: ...O STROBE 2 I O Data bit 0 3 I O Data bit 1 4 I O Data bit 2 5 I O Data bit 3 6 I O Data bit 4 7 I O Data bit 5 8 I O Data bit 6 9 I O Data bit 7 10 I ACK 11 I BUSY 12 I PE 13 I SLCT 14 O AUTO FEED 15 I ERROR 16 O INIT 17 O SLCT IN 18 NA Ground 19 NA Ground 20 NA Ground 21 NA Ground 22 NA Ground 23 NA Ground 24 NA Ground 25 NA Ground ...

Страница 145: ...No pin 5 NA Digital G Self test Self test 6 NA Red Rtn Key pin Red Rtn 7 NA Green Rtn Mono Rtn Green Rtn 8 NA Blue Rtn No pin Blue Rtn 9 NA Plug No pin No pin 10 NA Digital G Digital G Digital G 11 NA Reserved No pin Digital G 12 NA Reserved Digital G No pin 13 O Hsync Hsync Hsync 14 O Vsync Vsync Vsync 15 NA Reserved No pin No pin Red Rtn Green Rtn Blue Rtn Analog grounds Digital G Digital ground...

Страница 146: ...s DINconnectors Thevoltagesandsignalsarethesameforboth connectors 6 4 2 1 3 5 5 3 1 2 4 6 Pin I O Function 1 I O Data 2 NA Reserved 3 NA Ground 4 NA 5 Vdc 5 I O Clock 6 NA Reserved Although the keyboard and mouse ports are physically and electrically compatible neither the keyboard nor the mouse will operate if plugged into the other s socket ...

Страница 147: ...cable may be used to connect the feature connector to an expansion card In case you have difficulty obtaining a cable the pinout of the motherboard connector is given in the following table Pin Function Pin Function 1 Ground 2 P0 3 Ground 4 P1 5 Ground 6 P2 7 EVIDEO 8 P3 9 ESYNC 10 P4 11 EDCLK 12 P5 13 No connect 14 P6 15 Ground 16 P7 17 Ground 18 DCLK 19 Ground 20 BLNK 21 Ground 22 HSYNC 23 Groun...

Страница 148: ...apricot MITSUBISHI ELECTRIC APRICOT COMPUTERS LIMITED 3500 PARKSIDE BIRMINGHAM BUSINESS PARK BIRMINGHAM B37 7YS Part No 15205031 Revision No 01 ...

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