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Acorn Multimedia Expansion Unit User Guide

1. CD is vibrating Place unit on solid surface CD is warped Replace disc Drive lens is dirty Clean lens see above Faulty caddy Replace caddy 73 74 Condition Possible cause Corrective action Bad SCSI connections Check cable connections SCSI ID conflict Check SCSI ID numbers of all devices for conflict CDFS icon not present Check interface installed correctly Computer wil iuuneceionnination Make sure that only the first and last SCSI He acai devices have termination resistors installed e drive The Multimedia Expansion Unit was not turned on Turn the Multimedia Expansion Unit on and before the computer then reboot the computer Computer will SCSI ID conflict Check SCSI ID numbers of all devices for not start up after turning on the power switch conflict Incorrect termination Make sure that only the first and last SCSI devices have termination resistors installed CD caddy will not eject when the Eject button Mechanism failure Locate the Emergency Eject button hole and firmly push one end of a large paper clip into it Button is disabled by Lock is pressed Unlock with Unlock command command CD is a non playable p 3 7 Remove disc and insert a valid one sample disc CD caddy is No disc in the caddy Insert a disc continually ejected from the Disc is upside down Turn disc over drive Faulty caddy Replace caddy
2. DOS disc fails to run Insufficient files and or buffers Set amend files and or buffers accordingly see page 22 screen Incorrect mode Check emulator configuration and adjust as necessary Insufficient memory available to DOS Check emulator configuration and adjust as necessary DOS mouse not working Mouse driver not installed Install AMOUSE COM as detailed in PC Emulator Guide Mouse not connected in DOS window Use the Connect mouse option on the Emulator window menu DOS application does not support a mouse Use keyboard as detailed in the DoS application s manual Index A A3000 12 A3010 12 14 A3020 12 14 A4000 12 14 16 A5000 7 11 16 amplifier see power amplifier Archimedes 300 series 4 6 8 11 16 Archimedes 400 series 4 6 8 11 16 Archimedes 400 1 series 6 8 11 16 Archimedes 540 series 6 8 11 16 audio 16 17 29 32 69 73 AUTOEXEC BAT file 21 22 B block size 46 blocks per track 46 booting 47 53 buffers 20 BUFFERS DOS variable 22 C cables 37 maximum length 37 CD caddies 2 23 24 CD1 Line Out sockets 17 69 CD2 Line Out sockets 2 17 69 CDDevices 64 CDFS 64 CDFS 25 26 Commands 64 66 configuring 19 20 disabling 26 version required 4 CDPlayer 29 32 controls see CDPlayer main window Keypad window 30 31 main window 29 30 programs 31 quitting 32 Setup window 32 CD ROM drives adding 19 20 caches 43 configuri
3. M magneto optical drives 1 33 see also SCSI devices memory controller 4 Mixed headphone socket 16 69 Mixed Line Out Variable sockets 16 17 69 mounting see SCSI devices mounting mouse viii buttons viii MS DOS version required 20 O ON OFF switch 17 P packing list 2 Paint 26 partitioning see SCSI devices partitioning parts identification 2 3 PATH DOS variable 22 PC Emulator see PC Soft PC Soft 26 27 configuring 20 22 68 PCX files 57 PIC files 57 Play 65 PlayList 65 PlayMSF 65 power 17 power amplifier 1 17 33 power supply unit see PSU PSU 33 69 R Replay 43 RISC OS upgrading 4 version required 4 R series 6 8 11 S safety standards iii 15 33 69 SCSI 64 SCSI connector pin outs 70 72 SCSI devices adding 37 38 certifying 44 configuring from command line 66 67 Index dismounting 43 44 external 34 formatting 44 45 internal 15 33 34 low level parameters 46 mounting 43 44 partitioning 47 50 spreading reads 43 testing 55 verifying 45 46 wiping 50 write protecting 49 SCSI Driver Reservation Error 47 SCSI expansion cards 4 5 14 installing 5 14 mini CAO08 4 12 14 35 setting up 46 47 standard CAOQ06 5 11 33 35 SCSI IDs 16 34 expansion cards 47 selector 16 SCSIDiag 55 SCSIFS Commands 63 64 directory caches 53 SCSIMgr 39 54 Devices window 41 42 47 Dismount button 43 44 Driver Flags button 43 Drives window 41 50 51 entry password 39 40 52 Format button 44 45
4. SCSIDiag is supplied on the Support Disc Before using the application you should copy it either to another floppy disc or to your computer s hard disc if one is fitted To run SCSIDiag simply double click on its icon as usual Select the device you wish to test from the list displayed and then click Start Test SCSI Diags V8 1 1992 Cumana Ltd 68 Direct access 116 Mbytes CONNER CP30100 121mb 3131 1001 Direct access 203 Mbytes CONNER CP38200 212MB 3428 Direct access 203 Mbytes CONNER CP38200 212MB 3428 Read only 335 Mbytes CHINON CD ROM CDS 431 H48 At the end of the test a brief message is displayed giving its result To quit the application click the close icon in the top left corner of the window 55 11 ChangeFSIl hangeFSI is a useful program for converting and displaying image files of various formats These images can then be converted into sprites for viewing with RISC OS applications such as Paint In case you re wondering ChangeFSIstands for Change Floyd Steinberg Integer ChangeFS performs Floyd Steinberg error diffusion dithering You should make sure that your conversion and subsequent use of an image does not infringe on any copyright that the image may be under ChangeFSI provides the ability to read scale the data to improve the picture change the x and or y size sharpen the picture and write the result using error diffusion dithering in one step so it provides the best possible quality
5. 8 Expanding your system he Multimedia Expansion Unit is supplied with a CD ROM drive however it has been designed to allow for easy expansion We recommend that you only fit upgrades to the Multimedia Expansion Unit which are known to be compatible with it Expanding the Multimedia Expansion Unit s audio You can expand the audio capabilities of the Multimedia Expansion Unit by fitting a stereo power amplifier allowing the direct connection of speakers to the unit Adding SCSI devices to the Multimedia Expansion Unit The Multimedia Expansion Unit has a space for a 514 or 3 2 device to be fitted with front panel access typically a removable media device such as a magneto optical drive or a second CD ROM drive You can add one further 3 2 device inside the unit such as a SCSI hard disc drive Adding internal SCSI devices to your computer Furthermore the standard SCSI expansion card CAO06 has a connector that you can use to add internal SCSI devices such as a SCSI hard disc to your computer Fitting internal devices If you fit an internal SCSI device whether to your Multimedia Expansion Unit or to your computer you must ensure these requirements are met e There must be a free drive bay that will hold the SCSI device e There must be sufficient power available from the power supply unit PSU to meet the maximum power consumption of the device If the PSU is not sufficiently powerful you will either have t
6. All operations are carried out with 32 bit fixed point numbers three per pixel in the case of a colour picture Using ChangeFSI ChangeFSI is supplied on the Support Disc Before using the application you should copy it either to another floppy disc or to your computer s hard disc if one is fitted Double click on the application to sfart ChangeFSI Its icon will be loaded onto the icon bar Display the file icon for the image you wish to process and drag the icon onto the ChangeFSI application on the icon bar ChangeFSI will attempt to interpret the file to give a RISC OS sprite displaying the result You can then save the resultant image as a sprite file Picture formats ChangeFSI will convert many types of images These include the PC graphics formats TIFF PCX PIC and IMG the Amiga format IFF the Compuserv GIF format and the JPEG JFIF file interchange format For a full list of image formats explained in greater detail you should read the file FSIInfo provided inside the application shift double click on ChangeFSI to display the files 57 ChangeFSI in more detail ChangeFSI in more detail This section describes the ChangeFSI menu trees in detail Most users won t need to is already set up to give good results with most types use these options as ChangeFSI of image files If you want to know how ChangeFSI and its options are used in greater detail you FSIInfo provided inside the application shift double
7. but the scheme below is one that many people use e IDs 0 3 are used for disc drives e ID 4is used for a tape drive e ID 6is used for a CD ROM drive ID 5 is used for other devices such as scanners The internal disc fitted to the A540 and R200 series has a SCSI ID of 0 and so fits this scheme The method used to set SCSI IDs varies It is typically done either using a selector switch such as that fitted to the Multimedia Expansion Unit or a set of switches or jumpers fitted to a circuit board on the device See your devices manuals for more information Expanding your system Termination To work correctly every SCSI bus must have a set of termination resistors connected to each end and nowhere else If the bus isn t correctly terminated data passing along the bus may be corrupted The chapter Configuring the Multimedia Expansion Unit on page 15 described how to set up the Multimedia Expansion Unit in its basic default configuration If you add other SCSI devices to your system you have two choices Add the new device to one end of the SCSI bus i e the external end or the internal end In this case you must terminate the new device and remove the termination from the device that was previously on that end of the bus Add the new device to the middle of the SCSI bus In this case the new device must not be terminated Internal devices The standard SCSI expansion card CAO06 has a connector that you
8. you must have a version with CD ROM extensions At the time of going to press such versions were not yet available but this is likely to change You should see your supplier for details of DR DOS compatibility availability and installation Configuring the computer Loading PC Soft Load PC Soft as instructed in the PC Soft Guide accompanying it Set the configuration of the emulated PC using the Configure option from the PC icon bar menu Choose EGA and ECD for titles using this screen mode with 128K of memory for computers with 2MB of RAM and 256K for those with more RAM Choose VGA for titles using this screen mode Versions 1 6 and I 7 do not support VGA but you can choose EGA for a partial emulation of VGA mode By default the CD ROM drive will be configured as drive F Additional drives will be named G H and so on However if you have four hard disc drives configured drives C F then the CD ROM drive will install itself as drive G and additional drives follow on from there Now run PC Soft Switch to Single task mode from the icon bar menu to be able to display a full screen and for faster response Loading the MS DOS CD ROM support software PC Soft version I 6 or later when sold with MS DOS is accompanied by a CD ROM Support disc The software on this disc enables you to access the CD ROM drive while you are running DOS The software has its own installation program to make it easy for you to install it on
9. your computer This program alters your DOS AUTOEXEC BAT and CONFIG SYS files and copies Microsoft MS DOS CD ROM extensions and the CD ROM device driver If you usually boot DOS from a floppy disc you first need to format a new system floppy disc on which to install the software To do this put a floppy disc in the drive and type FORMAT A S When the format completes remove this disc from the drive To install the software put the disc labelled CD ROM Support disc into the drive Type A INSTALL This starts the installation program Follow the instructions given on the screen 21 Setting up PC Soft to read CD ROM discs 22 When prompted for a drive letter on which to install this software e If you boot DOS from a floppy disc type A When the installation program prompts for your boot disc insert the newly formatted system disc and press Space When you are prompted to insert the disc containing MSCDEX EXE put the CD ROM Support disc back in the drive e If you boot DOS from a hard disc type the hard disc drive letter typically C When the installation program has finished reboot DOS from your hard disc if you have one or else put your newly created system disc back in the drive and hold down Ctrl and Alt and press Delete to do this During the reboot cycle a message should be displayed on the screen similar to the following MSCDEX Version 2 20 Copyright Microsoft Corp 1986 Drive F Driver CDFSE
10. 62 45 You can Cancel the format while it s in progress However you ll then be unable to use the device until you can re run the format uninterrupted from start to finish The Verify button Click this button if you wish to check the device for faulty blocks You should do so just after you ve formatted a device but you can do so at any time even whilst data is stored on the device If the device has been partitioned you must choose whether to verify either a single Partition or the Whole Device 8 SCSI Manager Ready to Verify Partition Whole Device Once you ve chosen which to do the verification starts A dialogue box tells you which blocks are being checked SESI Manager Verifying Whole Device Please Wait Block 136088 to 137000 Cancel You can Cancel the verification mid way through this will not corrupt any data nor will it damage your device 45 The Devices window If bad blocks are found this will be reported and you ll be given the option to re assign them Re assigning blocks effectively marks the bad blocks as unusable and allocates alternative unused blocks in their place The Parameters button Click this button to change a device s low level parameters Warning You should only use this option if you are sure that you know what you are doing A list of the device s low level parameters Blocks Per Track Heads Cylinders and Block Size are shown in a
11. A3020 and A4000 Instructions are included for fitting the expansion card to these computers If you do not feel confident about fitting it yourself take the card and your computer in its original packaging to an Acorn Authorised Dealer who will install and test the card A charge may be levied by the dealer for installing the card such a charge shall be entirely at the discretion of the dealer concerned Acorn Computers Limited cannot accept any liability for damage done to the product during installation of internal upgrades whether or not carried out in accordance with the instructions in this document Disassemble the computer Before removing the top plastic cover of the computer 1 switch off the computer 2 remove the power lead from the wall socket Do not reconnect the power lead to the wall socket until you have replaced the cover of the computer Do not make any adjustments inside the computer while the power lead is connected to the wall socket Under no circumstances should you separate the top and bottom halves of the internal metal safety case of A3010 and A3020 computers This case lies underneath the keyboard and contains hazardous voltages To remove the top cover and locate the internal expansion card connector follow the instructions in Appendix E Inside the computer in the Welcome Guide i Note that the only screws you need to unscrew to remove the top cover of A3010 and A3020 computers are those mar
12. Figure 2 5 Fitting an expansion card into the lower slot Archimedes shows an expansion card fitting into one of the positions in the computer The illustration shows an Archimedes computer but the same principle applies for A5000 Figure 2 5 Fitting an expansion card into the lower slot Archimedes To fit the expansion card support the backplane firmly with one hand and push the connector on the card into one of the sockets on the backplane The connector should be securely seated i e the rear plate of the expansion card should be flush with the rear of the computer case It is important that you offer the expansion card up to the backplane at right angles to it and that you align the connectors otherwise you may bend the pins or break or disconnect the backplane itself It does not require great force to install the expansion card correctly If the expansion card will not seat easily remove the expansion card and try again Installing the standard expansion card CAO06 10 When you have fitted an expansion card to your computer the backplane should be in a vertical position assuming that the expansion card is fully inserted and screwed into the rear of the computer For some combinations of Archimedes and R Series machines and expansion cards however the top of the backplane may appear to lean towards the front of the machine If this is the case you must insert the two spacers found in this package Each spacer should b
13. Multimedia Expansion Unit your computer must have a compatible SCSI expansion card fitted The Multimedia Expansion Unit is available with two different SCSI expansion cards suitable for the two sizes of expansion card slots that Acorn computers have either a standard sized one or a mini sized one Alternatively should your computer already have a suitable SCSI expansion card fitted you can purchase the Multimedia Expansion Unit without an expansion card However you may need to upgrade the software fitted to your existing card see SCSI expansion cards on page 4 If you have any doubts contact your supplier Handling the Multimedia Expansion Unit Verify that all of the following items are present e one Multimedia Expansion Unit e one SCSI terminator block e one CD caddy which holds and protects the CD in the CD ROM drive e one audio cable also used to connect the Multimedia Expansion Unit to your computer e one mains lead Depending on the model you have purchased you may also have been supplied in separate packaging with e one SCSI interface numbered either CAO06 a standard expansion card or CAO08 a mini expansion card e one SCSI interface cable numbered MAC SOTP used to connect the Multimedia Expansion Unit to the SCSI interface e one floppy disc of support software If any of these items are missing please contact your supplier immediately It is a good idea to keep the packaging the Multimedia Expansi
14. button If you want to divide a partition into two click this button You can then if necessary change the sizes of the new partitions using the Size and buttons see above 49 The Drives window The Merge button If you wish to combine two consecutive partitions to create one larger one e g 1 and 2 or 9 and 10 select the first partition of the two to be merged and then click the Merge button The Wipe button The wipe button re initialises the currently selected partifion erasing all the data stored in it Data in other partitions will not be affected Warning When you wipe a partition any data that was previously stored on it is permanently lost So don t wipe a partition unless you are certain that you no longer require the data stored on it The Execute button This button is used to execute any changes you have made to the number or size of partitions Such changes will not take effect until you click this button Warning When you partition a device any data that was previously stored on it is permanently lost So don t repartition a device unless you are certain that you no longer require the data stored on it The Drives window Although you can have up to 64 partitions on each writable SCSI device the SCSI filing system only allows a total of 4 partitions to be accessed as RISC OS drives at any one time These four drives use the numbers 4 7 The Drives window controls the mapping between the SCSI part
15. from the command line When the option is turned on as above they can be changed when it s off they can t be changed e Boot Timeout sets a delay for which the computer waits when it is first switched on This helps accommodate any differences in the power up times of the computer and attached SCSI devices caused by such things as internal self tests Delays are set in increments of 5 seconds up to a maximum of 75 When you click the OK button the SCSI bus is reset and any new host ID number takes immediate effect The Partitions window The Partitions window is used to show setup and alter partitions on writable SCSI devices such as hard disc drives Each partition appears and functions like a smaller separate drive Each device can have a maximum of 64 partitions The initial appearance of the window depends on which SCSI device is selected in the Devices window see above and whether or not it is mounted e If the selected device is not writable e g a CD ROM drive it cannot be partitioned and so the Partitions window is blank e Ifthe selected device is writable but is mounted it cannot be partitioned this is shown in the Partitions window by the error message SCSI Driver Reservation Error To partition the drive you first need to dismount it see The Dismount button on page 43 47 The Partitions window e Ifthe selected drive is writable and is dismounted it is ready to be partitioned The Partitions wi
16. is an expansion unit that is style matched to an A4000 or A5000 computer and that comes fitted with a single CD ROM drive CD ROM discs are gaining popularity throughout the world as computer users in commerce education and industry discover their potential for vast amounts of data storage their audio visual capabilities and their convenient storage and handling The combination of thousands of pages of text images both moving and still and audio will help you discover a wealth of study research and entertainment opportunities Expanding your system The Multimedia Expansion Unit has been designed to offer you complete flexibility for your future needs it has built in expandability You may install a further two SCSI devices in the Multimedia Expansion Unit for example a hard drive a magneto optical drive or perhaps a second CD ROM drive You can also connect additional SCSI devices either as external cased units similar to the Multimedia Expansion Unit or possibly fitted inside your main computer unit Audio capabilities have been built in along with provision for installing a stereo power amplifier If you intend to expand your system make sure you don t miss out the chapter Expanding your system on page 33 as it contains important advice and instructions Unpacking the Multimedia Expansion Unit The first thing you should do is to unpack your Multimedia Expansion Unit and check that all the components are present To use the
17. should read the information file click on ChangeFSI to display the files Menu options Once you have loaded ChangeFSI onto the icon bar click Menu over the icon to display the main options menu Scaling options The Scaling options allow you to choose which scale you wish for your image You ChangeFS1 Info Y Scaling Y Processing gt Qutput Fast Save Choices Quit can also transform rotate or mirror the image Info Processing 9 Output Fast Saye Choices Quit 58 ChangeF SI C Sealing ption _ Ignore Source Pixel Size lt gt Scale to fill 648 by 256 lt gt Seale Lil lil lt gt Custom lt gt Seale Ail 1 2 OO lt gt Scale 1 2 1 1 lt Scale 1 2 1 2 ENEE Rotate lt gt 90 lt gt 90 Mirror L R _ Mirror U D ChangeFS The option Scale 1 1 1 1 will give you a full sized image Choosing Custom allows you to specify your own scaling options If you wish the image to scale to exact pixel size fill in the left boxes only and leave the right boxes blank The Scale to fill option allows you to scale the image so that it covers the entire screen area this may distort the aspect ratio of the image The Ignore Source Pixel Size box allows you to ignore any source information about the pixel size This can be useful if you have images that use a non standard pixel size The Rotate and Mirror options perform rotations and mirror operations on the sou
18. the drive will normally stop when it encounters a data track even if there are subsequent audio tracks 31 The Setup window The Setup window Each CDPlayer can be used to control a single CD ROM drive at one time which is selected using the Setup window However CDPlayer is supplied already set up to use the Multimedia Expansion Unit in its default configuration so you ll only need to change the Setup if you are using more than one CD ROM drive and or SCSI interface or if you have changed the configuration of your Multimedia Expansion Unit from the default SCSI device 6 LUN 0 card number 0 To open the Setup window choose Setup from CDPlayer s icon bar menu Click on the and icons until the correct device unit and card numbers are shown for the CD ROM drive you wish to use If you re not sure what the numbers should be for a particular drive you can find them out using the Devices window of the SCSIMegr application page 42 or by typing at the command line CDFS CDDevices see page 63 It is not advisable to keep switching CDPlayer from one drive to another using the Setup window This operation should only be performed when CDPlayer is first started If you need to control more than one drive you should start the CDPlayer application as many times as you require and change each copy s setup individually before use Quitting CDPlayer 32 To quit the CDPlayer application choose Quit from its icon bar menu
19. window S Low Level Device Parameters Blocks Per Track 38 Heads 4 Cylinders 1563 Block Size 312 Bytes Total Blocks 237576 Unused Blocks 128 Drive Capacity 116 MBytes Use Defaults Save Parameters Normally these are read from the device automatically but you can alter them if circumstances require this e g to use a non standard or unsupported device Once you re satisfied the parameters are correct save them to the drive by clicking the Save Parameters button The Set Host ID button 46 The Set Host ID button appears if the Host is the selected device 608 aal 116 Mbytes CONNER 203 Mbytes CONNER 335 Mbytes SONY CUMANA CP36188 121mb CP38200 212MB CD ROM CDU 561 SCSI Interface 3131 3428 1 7 1 44 Direct access Direct access Read only 066 a Host Click this button to set up the selected SCSI expansion card SCS Mgr A window appears aal SCSI Manager SCSI ID Host ID 2 3 4 5 Enable Config Boot Timeout 15 Ok e Host ID changes the SCSI ID of your SCSI expansion card Its current SCSI ID appears as a white digit on a black background i e 7 above IDs that are already used by other SCSI devices appear greyed out i e 0 1 and 6 above you may change it to any of the remaining SCSI IDs i e 2 5 above The default SCSI ID for the interface is 7 e Enable Config controls whether or not SCSIFSMap settings can be changed
20. 2 and 64 usually give the best result experiment Images treated in this way will give a poor result when viewed on screen Only works for 1 bpp black and white output Gamma Correction is used to correct the image quality as displayed on your monitor Low values of gamma 0 to 1 make colours darker and high values above 1 make them lighter Gamma correction is most offen used to correct images that have been scanned in with a scanner Different monitors may need different Gamma Corrections A standard value is 2 2 TV industry standard Pre sharpening is used to sharpen the edges of objects This is useful if the dithering process has made the image blurred A value of 24 will counteract the general dither blurring A value of 20 is noticably sharp Values down to nine can be selected Output options The Output options control the screen mode the picture is created for ChangeF SI Info Scaling gt Processing Output fore j Q12 OA O8 Made Fast PO1072O10807 Save Choices 4 Use current mode Quit _ Ignore pixel aspect lt gt Monochrome lt gt Colour lt SSpecial The 1 2 4 8 buttons represent the screen colours that you can use The numbers represent bits per pixel 8 bits represent 256 colours 4 bits represent 16 colours 2 bits represent 4 colours and 1 bit represents 2 colours The square box represents the square pixel modes and the oblong box represents the non square modes The actual outp
21. 6 Data bit 6 Active low 16 DB 7 Data bit 7 Active low 18 DBP Data parity Active low 26 TPWR Terminator power 32 ATN Attention Active low 36 BSY Busy Active low 38 ACK Acknowledge Active low 40 RST SCSI bus reset Active low 42 MSG Message Active low 44 SEL Select Active low 46 CD Command Data Active low 48 REQ Request Active low 50 VO Input Output Active low All other pins are connected to ground OV except pin 25 which is open 72 Appendix C Troubleshooting guide Condition Possible cause Corrective action CD will not play Power not on Check the pOwer switch and power supply No CD inserted Insert CD CD is very dirty Wash the disc in warm water and a little mild washing up liquid Rub the CD with your finger tips in straight lines from the centre to the outside edge Let it dry Drive lens is dirty Clean lens using a CD lens cleaning kit Pause button in effect Release the CD player pause button If temperature in the room is cold there may be condensation on the lens Leave the power to the unit on and try again in about an hour No audio or only one channel plays Speaker or headphone connections loose Tighten connections Volume turned down Check the volume control Setup not correct Check Setup panel data is set correctly Sound quality is poor CD is dirty Clean disc see above CD is scratched Replace disc
22. 88 ALOGO ALOGO21 ARMLOGO BR IBIATETRIS BOUNCE CRIMB098 icuttus ICUBIK s A IDEMO6399 IDISCRUN GLASS LUCKYLUKE MANDE IMOLECULE IRISCLOGO SCPE aa gt mi i sia IREADME DEMOS DEMO_S N DRAWFILES FUN IDEDiscd Apps Wet Reading PC format CD ROM discs using PC Soft RISC OS directory displays can be opened for PC CD ROMs PC file names are translated to a format compatible with the RISC OS environment You can view text files using Edit in the same way as usual and use ChangeFSI see page 57 to convert a wide range of graphics images to RISC OS sprites which you can then view using Paint However to run the programs included on such discs you will need to use PC Soft see Reading PC format CD ROM discs using PC Soft below If you are not using CDFS CDFS claims some memory each time you power on your computer If you are not using CDFS and need this extra memory you can disable CDFS by typing Unplug CDFS Unplug CDFSDriver Unplug CDFSFiler and then resetting your computer When you need CDFS again you can reinstall the three modules by using RMReInit for each one in a similar way and then rebooting Reading PC format CD ROM discs using PC Soft 26 Place a CD ROM disc in the drive and t
23. Acorn Multimedia Expansion Unit User Guide Acorn Multimedia Expansion Unit User Guide Copyright 1990 1991 Next Technology Corporation Limited All rights reserved Copyright 1990 1992 Cumana Limited All rights reserved Copyright 1993 Acorn Computers Limited All rights reserved Published by Acorn Computers Technical Publications Department No part of this publication may be reproduced or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise or stored in any retrieval system of any nature without the written permission of the copyright holder and the publisher application for which shall be made to the publisher The product described in this manual is not intended for use as a critical component in life support devices or any system in which failure could be expected to result in personal injury The product described in this manual is subject to continuous development and improvement All information of a technical nature and particulars of the product and its use including the information and particulars in this manual are given by Acorn Computers Limited in good faith However Acorn Computers Limited cannot accept any liability for any loss or damage arising from the use of any information or particulars in this manual or any incorrect use of the product All maintenance and service on the product must be carried out by Acorn Computers authorised dealers or Ap
24. CD Player window The basic set of controls work in the same way as those of a conventional audio CD player Play starts the audio CD playing Pause stops the CD playing but holds it in its current position Stop stops the CD playing and returns to the start of the CD Eject stops the CD and ejects it from the CD player Skip backwards and Skip forwards move to the previous or next tracks respectively Rewind and Fast forward move backwards or forwards through the audio track speeding up as you hold down the button Moving the Slider takes you quickly to any point on the CD Track number shows the number of the track currently playing or as above 00 if nothing is playing Playing time gives you three choices of display It normally shows the time the disc has been playing Clicking on this number changes the display to show the time the individual track has been playing clicking again shows the time left on the disc clicking again returns to the original display Total tracks time gives the total number of tracks on the CD and its total playing time Display keypad displays the keypad the use of which is described in the next section The Keypad window 30 Clicking on the triangle icon or choosing Keypad from the CD Player menu will open the Keypad window You can use this window to select which tracks on the CD you wish to hear and in which order you wish to hear them ad a BBLEL Beeuwm BBweow CD
25. D ROM drive also has an individual headphone socket and volume control on its front panel and a stereo pair of Line Out phono sockets on the rear panel of the unit Plugging in and switching on the Multimedia Expansion Unit Finally I Connect the power lead to the Multimedia Expansion Unit and to a power outlet on the wall 2 Switch on the mains supply for the Multimedia Expansion Unit at the mains outlet on the wall 3 Turn the Multimedia Expansion Unit on by pressing the ON OFF switch on the front 4 Turn on the rest of your system as usual If you re unsure what s the best order in which to do this see your computer s Welcome Guide 17 18 4 Configuring the computer Wee CD ROM Filing System CDFS enables you to access data on a CD ROM from the RISC OS desktop It is resident in a ROM on your SCSI expansion card and is loaded automatically when you power on your computer The CDFS icon bar menu enables you to configure your computer to suit the CD ROM system attached to it This chapter tells you how to configure your computer so that you can use CD ROMs you only need to do so when adding or removing drives For details of how to use CDFS once you have configured it see Using CD ROM discs on page 25 Configuring your RISC OS computer from the desktop To ensure the fastest boot up time the following procedure should be followed 1 Ensure all the peripherals and cables are connected 2 Switch on the monitor th
26. Format Options window 44 45 Help window 41 installing 40 main window 41 menu 52 54 Parameters button 46 Partitions window 41 43 44 47 50 quitting 54 running 40 41 SCSI Manager window see SCSIMgr main window 77 Index Set Host ID button 46 47 system password 40 52 Verify button 45 46 security 39 40 stacking 15 Stop 65 Supported 65 surface analysis see SCSI devices certifying T technical specification 69 72 termination 35 36 TIFF files 57 troubleshooting 73 74 U Unlock 66 unpacking 1 2 upgrades see expanding V verifying see SCSI devices verifying VGA 26 27 volume control 16 W weight supported 15 WhichDisc 66 Windows 27 wiping see SCSI devices wiping write protecting see SCSI devices write protecting 78 Reader s Comment Form Multimedia Expansion Unit User Guide We would greatly appreciate your comments about this Guide which will be taken into account for the next issue Did you find the information you wanted Do you like the way the information is presented General comments If there is not enough room for your comments please continue overleaf How would you classify your experience with computers Bi First time user Used computers before Experienced user Programmer Cut out or photocopy and post to Your name and address Dept RC Technical Publications Acorn Computers Limited 645 N
27. M on the SCSI interface to which the selected device is connected They are stored on a per SCSI device basis that is all devices having the same last two digits in their device number share the same driver flags The Dismount button The Dismount button is shown if the device you have selected is a writable device e g a hard disc that is currently in use or mounted Direct access 203 Mbytes CONNER CP38200 212MB 3428 Read only 535 Mbytes SONY CD ROM COU 561 1 7X CUMANA SCSI Interface 1 14 At the same time the Partitions window shows the message SCSI driver reservation error which indicates that you cannot change the device s partitioning because it is in use 43 The Devices window Once you click on the Dismount button several new buttons appear which you can use to format the device verify it and if you know what you re doing alter its low level parameters 1688 Direct access 116 Mbytes CONNER CP38188 121mb 3131 061 Direct access 203 Mbytes CONNER CP38288 212MB 3428 666 Read only 335 Mbytes SONY CD ROM CDU 361 1 7 887 Host CUMANA SCSI Interface 1 14 At the same time the Partitions window changes to show the device s current partitions which you can then alter see The Partitions window on page 47 The Format button Click this button if you wish to format the device e g a hard drive Warning When you format a device any data that was previously stored on it is permanently lost So do
28. M unit 0 This indicates that the driver is loaded and the CD ROM drive has been allocated the letter F for access purposes from DOS Your computer will now behave like a PC with a CD ROM drive attached There is a summary of common PC commands in the PC Soft Guide Recommended changes to configuration files We recommend that you check that the following statements exist in the CONFIG SYS and AUTOEXEC BAT files and amend or add them as necessary as some DOS formatted CD ROM discs require these settings before they can be used In the CONFIG SYS file we recommend you add these lines FILES 20 BUFFERS 20 In the AUTOEXEC BAT file your PATH should include the pathnames below in the order given PATH C C DOS F Hard drive users PATH A A DOS F Floppy drive users Of course your PATH may also include other pathnames you have previously added 5 Using Compact Discs Ber you use Compact Discs or CDs you will need to know how to load them into the CD caddy The caddy holds the CDs in the correct position within the CD ROM drive and protects them from damage Extra caddies are available from your supplier Handling Compact Discs Treat your Compact Discs with as much respect as you would give to a vinyl record Handle CDs by the edge to avoid fingerprints A very dirty CD will not operate properly Generally you should not have to clean a CD but if you do follow the instructions in A ppendix C Troubles
29. Player To program the player to play a selection of tracks 1 Click on the first track number you wish to hear and then on MEM The Memory window automatically appears showing the tracks in the program memory La Bi Track8s 4 2 Repeat this for any other tracks you wish to add to the program memory 3 Play the tracks by clicking on Play Other program play functions ALL adds a list of all the audio tracks available on the CD to the program memory RND clears the program memory and creates a randomly ordered list of all the audio tracks to the program memory RPT continuously repeats the tracks in the program memory until you click on the Stop key in the CD Player window If no program has been set the CD instead repeats continuously from start to finish CLR is used to clear the program memory To clear all tracks from the program memory click Adjust on the CLR button To clear individual tracks highlight the desired tracks and then click Select on the CLR button Notes on playing programs When CDPlayer is set to play a program the following restrictions apply e The slider and slider bar cannot be dragged or clicked on e The time display will only show the time the disc has been playing e The main CD Player window must be open to allow the programmed tracks to be played When playing a mixed mode CD mixed audio and data tracks using the ALL button guarantees that all the audio tracks will be played otherwise
30. S DOS CD ROM extensions is called MSCDEX EXE This is configured by entering a statement such as this in AUTOEXEC BAT C DRIVERS MSCDEX D MSCD001 L F Parameter switches are Parameter Use D Specifies the CD ROM device driver name for example MSCD001 which must match that used in CONFIG SYS IL Specifies the drive letter of the first CD ROM drive M Specifies the number of cache buffers for MSCDEX EXE 8 15 the default being 8 IN Displays verbose message during boot up detailing memory usage and diagnostic information IS Instructs MSCDEX EXE to patch DOS to allow CD ROM drive sharing on an MS NET based network server This parameter is not used by PC Soft IE Instructs MSCDEX EXE to use extended memory if available 68 Appendix B Technical specification Power Supply Unit PSU Figures quoted are those available on a standard unit with no upgrades fitted i e one that is fitted with only one CD_ROM drive and one pre amplifier Continuous power available 12W Surge power available 19W These are total power levels available at 5V 12V or any mix thereof Operating temperature Maximum internal temperature 50 C Audio specifications Front panel CD ROM drive headphone socket 3 5mm stereo jack maximum output 0 55V RMS into 32Q load Mixed variable headphone socket 3 5mm stereo jack maximum output IV peak to peak info 3 2Ohm load Rear panel CD1 Line Out sockets twin pho
31. SCSI devices are The last device on the external SCSI bus must be terminated SCSI devices designed for external use are typically terminated by an external block such as that supplied with the Multimedia Expansion Unit which you can use on any SCSI device with the correct type of socket However some units especially older ones may instead use resistor packs fitted to sockets on a circuit board Again you should check your devices manuals to find out how they are terminated Any other devices connected to the external SCSI bus must not be terminated In particular this means that If the Multimedia Expansion Unit is the only external SCSI peripheral attached to your computer it must have its terminator block fitted If you disconnect all external SCSI devices from your machine the interface must have a terminator block fitted to its external SCSI socket Note that the Multimedia Expansion Unit s terminator will not fit this socket you will need to buy either a terminator that does fit or an adaptor that allows you to connect the Multimedia Expansion Unit s terminator Expanding your system Adding new SCSI devices Because there are so many different types of SCSI devices we can t give precise instructions that cover every possibility However if you follow the guidelines below you shouldn t have any problems If you have any doubts you should consult your supplier Read the manuals for your new SCSI device Bef
32. URCHASER S STATUTORY RIGHTS Guarantee procedure To claim under this guarantee proof of date of purchase is required This is provided by your copy of the invoice from the supplier from whom the equipment was originally purchased Keep the invoice safe and produce it to support any claim you may make under this guarantee You may find it useful to make a note in the box below of the serial number date of purchase and details of any upgrades fitted and quote them in any correspondence Serial Number Date of purchase Upgrades Contents Contents v About this Guide vii What you should already know vii If you have problems vii Conventions vii About the Multimedia Expansion Unit 1 Unpacking the Multimedia Expansion Unit 1 Handling the Multimedia Expansion Unit 2 Parts identification 2 Hardware and firmware requirements 4 Installing the SCSI expansion card 5 Installing the standard expansion card CAO06 5 Installing the mini expansion card CAO08 12 Configuring the Multimedia Expansion Unit 15 Connecting the Multimedia Expansion Unit to your computer 15 Configuring the computer 19 Configuring your RISC OS computer from the desktop 19 Setting up PC Soft to read CD ROM discs 20 Using Compact Discs 23 Handling Compact Discs 23 Loading Compact Discs 23 Ejecting a CD ROM disc 24 Using CD ROM discs 25 Using CDFS 25 Reading PC format CD ROM discs using PC Soft 26 Contents CDPlayer 29 The main CD Pl
33. an take up to four single width or two double width expansion cards The optional backplane fitted to the Archimedes 300 series can take up to two single width or two double width expansion cards provided the latter require no more than one interface connector each If a backplane is fitted but has no expansion card socket free you will have to remove one of the expansion cards in order to install a new one You can now fit the expansion card go to Fit the expansion card on page 8 Installing the SCSI expansion card A5000 1 Switch off and disconnect the computer from the mains supply then switch off and disconnect all peripherals including the keyboard 2 Place the computer on a work surface with a clean soft covering like a woollen blanket not synthetic or a piece of cardboard and turn it over so that it rests on its top cover 3 Remove all six screws holding the metal cover in place see Figure 2 2 A 5000 top cover fixing screws Store them somewhere safe 4 Rest the computer on its base again and slide the cover back towards the rear of the computer see Figure 2 3 Removing the top cover Remove the cover completely 5 Some models of the A5000 have an EMC case shield which fits over the inner case see Figure 2 4 Removing the EMC shield To remove this unscrew the five fixing screws on the righthand side of the computer as seen from the rear The shield has interleaved tabs which fit around the edges of the case Slide
34. ands that do not try to write to disc for details of these see your RISC OS 3 User Guide CDFS also provides some new commands of its own detailed below Many of these commands require an optional drive parameter if you omit this CDFS defaults to using its current drive initially drive 0 CDDevices CDDevices displays all the CD devices connecfed their product name capacity SCSI ID displayed as device LUN and card and firmware revision CDDevices CDFS CDFS selects the CD ROM filing system as the current filing system CDFS CDSpeed CDSpeed displays or sets the read speed of the given CD ROM drive CDSpeed drive speed Configure CDROMBuffers Configure CDROMBtffers sets the configured amount of memory reserved for CD ROM buffering maximum 512K Configure CDROMBuffers sizeK Configure CDROMDrives Configure CDROMDrives sets the configured number of CD ROM drives recognised at power on Configure CDROMDrives n 64 Eject Eject ejects the disc from the given CD ROM drive Eject drive Lock Lock locks the disc in the given CD ROM drive disabling the Eject button Lock drive Play Play plays from fhe specified audio frack to the end of the disc in the given CD ROM drive Play track drive PlayList PlayList lists the tracks whether audio or data on the disc in the given CD ROM drive together with their start time and the total CD fime PlayList drive Pl
35. ation to 0 CD ROM drives You may want to configure the size of the CD ROM buffers especially if you expect to be using a variety of CDs Type Configure CDROMBuffers sizeK where size represents the size of the buffers in KB a number in the range 0 512 The configuration chosen will be stored in the CMOS RAM reset the computer to implement it The computer should boot up into the desktop A CD ROM icon should appear in the icon bar the number of icons representing the number of CD ROM drives attached Important Incorrectly setting the number of drives causes the boot up procedure to take longer 67 Altering the default configuration of your system under PC Soft Altering the default configuration of your system under PC Soft The device driver The DOS device driver CDFS_DRV SYS is configured by entering a statement such as this in CONFIG SYS DEVICE C DRIVERS CDFS DRV SYS D MSCDO001 N 1 Parameter switches are Parameter Use IN This restricts the number of drives that can be used from PC Soft for example if you have 4 CD ROM drives and you use the switch N 2 then only the first two drives will be usable from PC Soft If this switch is not specified then all of the drives will be accessible D This switch allows the device driver name to be changed You are advised not to change this switch as it must then also be changed for MSCDEX EXE MS DOS CD ROM Extensions The file containing the M
36. ayMSF PlayMSF plays a piece of audio from the disc in the given CD ROM drive The start and stop times are specified in minutes seconds and frames from the start of the disc PlayMSF mins secs frames mins secs frames drive Stop Stop stops playing the disc in the given CD ROM drive Stop drive Supported Supported lists the drive types recognised by CDFS Supported 65 Configuring SCSI drives from the command line Unlock Unlock re enables the Eject button on the given CD ROM drive reversing the effect of any earlier Lock command Unlock drive WhichDisc WhichDisc displays the unique ID number for the current CD ROM drive WhichDisc Configuring SCSI drives from the command line 66 To configure the number of SCSI drives type Configure SCSIFSDiscs n where n is the number of SCSI drives or partitions you wish to be made available at this time from 0 to 4 SCSI devices used with RISC OS are given drive numbers starting from four Therefore the first SCSI drive s RISC OS name will be SCSI 4 To set the default SCSI drive number used by SCSIFS at power on use the command Configure SCSIFSDrive n where n is the drive number to be selected You can set the directory cache size in SCSIFS just as you can in ADFS using the command Configure SCSIFSDirCache n where n is the size of the cache you want in Kilobytes 16 KB is a typical setting You can display details of fhe SCSI device
37. ayer window 30 The Keypad window 30 The Setup window 32 Quitting CDPlayer 32 Expanding your system 33 More about SCSI 34 Adding new SCSI devices 37 SCSIMgr 39 Security 39 Installing and running SCSIMgr 40 The Devices window 42 The Partitions window 47 The Drives window 50 SCSIMer Menu items 52 Quitting the SCSIMgr application 54 SCSIDiag 55 ChangeFSI 57 Using ChangeFS1 57 ChangeFS in more detail 58 Using the command line 63 SCSI Commands 63 CDFS Commands 64 Configuring SCSI drives from the command line 66 Configuring CD ROM drives from the command line 67 Altering the default configuration of your system under PC Soft 68 Technical specification 69 Power Supply Unit PSU 69 Operating temperature 69 Audio specifications 69 SCSI connectors 70 Troubleshooting guide 73 Index 75 vi About this Guide This Guide tells you how to install the Multimedia Expansion Unit and having done so how to use both the unit itself and the software supplied with it Information is provided in the sequence necessary to quickly get you up and operating Later chapters give you help on expanding your system and on sorting out any problems you may have What you should already know Before reading this Guide you should be familiar with the material in your computer s Welcome Guide In particular you should already have a good idea of how the desktop operates and you should have read the Guidelines for safe operation printed n
38. can use to add internal devices in other words devices that fit inside your computer s casing such as an extra hard disc Before you connect any such devices you ll need to know the locations both of the connector for internal devices and of the card s terminating resistor packs which provide the termination of the internal end of the SCSI bus SIL1 SIL2 SIL3 Terminating resistor packs moO uu J2 SCSI connector for internal devices Figure 8 1 CA006 SCSI expansion card terminating resistors and SCSI connectors The mini SCSI expansion card CAO08 does not have a connector for internal devices and so we recommend that you do not try to fit them 35 More about SCSI 36 The important rules when adding internal SCSI devices to your computer are as follows If you don t add any internal SCSI devices to your computer the interface is at one end of the SCSI bus and so its terminating resistors must remain fitted If you do add internal SCSI devices the interface is no longer at the end of the SCSI bus and so you must remove its terminating resistors You must then ensure that the only the last device on the internal SCSI bus is terminated SCSI devices designed for internal fitting are typically terminated by resistor packs fitted to sockets on a circuit board i e just like the SCSI expansion card but you should check their manuals to be sure External devices The important rules when adding external
39. card which does not have enough pins to pass 16 bits of data at a time to the card Archimedes 300 or 400 series computers were supplied fitted with a MEMCI memory controller chip If you have not already upgraded this chip to a MEMCIA you might like to consider doing so as you will get much faster data transfer rates With a MEMC1 the computer can read or write only 8 bits at a time whereas with a MEMCIA it can transfer 16 bits at a time SCSI expansion cards You may have bought the Multimedia Expansion Unit without a SCSI expansion card because your computer already has one fitted To use the CD ROM drive your SCSI expansion card must contain version 2 13 or above of the CDFS Compact Disc Filing System software To find out type at the command line Help CDFS You will either get a message giving the version number of CDFS fitted to your SCSI expansion card or the message No help found if CDFS is not present at all If you do not have a sufficiently recent version of CDFS you should contact your computer supplier If you already have a SCSI expansion card fitted you can obviously skip the next chapter Installing the SCSI expansion card and should move on to Configuring the Multimedia Expansion Unit on page 15 2 Installing the SCSI expansion card This chapter tells you how to fit the two types of SCSI expansion card that are optionally supplied with the Multimedia Expansion Unit a standard expansion card below o
40. d sound is output to two sockets a stereo jack socket on the front of the unit suitable for use with headphones mini speakers or speakers in the monitor and a pair of phono sockets on the rear of the unit suitable for use with an amplifier or speakers with a built in amplifier The slider control on the front panel alters the volume output through both these sockets Configuring the Multimedia Expansion Unit Using these sockets you can easily connect a single pair of headphones and or a stereo system to the sound from all your equipment 1 2 Push the 3 5mm stereo jack plug on one end of the audio lead into the headphones 32O0hm socket on the back of the computer Push the two phono plugs on the other end of the cable into the two Computer Audio In sockets on the rear of the Multimedia Expansion Unit using the red plug for the Right channel and the other plug for the Left channel If you are using headphones mini speakers or speakers in the monitor plug their connecting lead into the stereo jack socket below the Acorn logo on the front of the Multimedia Expansion Unit f you are using an amplifier or speakers with a built in amplifier connect these to the Mixed Line Out Variable pair of phono sockets on the rear of the Multimedia Expansion Unit A stereo power amplifier upgrade is available for your Multimedia Expansion Unit enabling you to connect speakers directly to it See your supplier for details Note that each C
41. e inserted between the internal face of the expansion card backplate and the metal clips on the rear plastic moulding of the machine so that the fixing screws pass through both the backplate and the spacers see Figure 2 6 Fitting spacers to the expansion card backplate This should result in the external face of the expansion card backplate panel being flush with the rear plastic moulding a Si we REAR PANEL OF SPACER EXPANSION CARD Figure 2 6 Fitting spacers to the expansion card backplate Installing the SCSI expansion card When you have done this you may need to straighten the backplane to ensure that the connectors are correctly mated To do this take the following steps 1 Slacken off the two screws fixing the backplane support metalwork to the base metalwork and power supply 2 Holding the expansion card stationary ease the backplane towards a vertical position until the faces of the interlocking connectors on the expansion card and backplane are touching 3 Retighten the two screws slackened earlier f you do not require the two spacers simply secure the expansion card to the rear of the computer case by inserting a screw at each end of the expansion card backplate Reassemble the computer Once the expansion card has been correctly installed replace the top cover of the computer following the disassembly instructions in the reverse order The expansion card has now been installed Test the card
42. ear the front of the Welcome Guide If you have problems If your computer starts behaving unexpectedly or doesn t do anything at all see both the chapter If things go wrong in the Welcome Guide which has solutions to most common problems and Appendix C Troubleshooting guide on page 73 of this Guide Conventions Typefaces The following conventions are used in this guide e Menu names and options are shown in bold type for example Choose SCSIDirCache from the Configure submenu e Example commands are shown in Courier type for example Devices Since all characters are the same width in Courier this makes it easier for you to tell where there should be spaces Vii Conventions Command syntax Special symbols are used when defining the syntax for commands e Italics indicate that you must substitute an actual value For example drive means that you must supply an actual drive number e Braces indicates that the item enclosed is optional For example K shows that you may omit the letter K e A bar indicates an option For example 0 1 means that you must supply the value 0 or 1 The mouse The mouse has three buttons From left to right their names are Select Menu and Adjust The functions they perform depend on the application you are using For some general principles refer to the Welcome Guide supplied with your computer Select Viii 1 About the Multimedia Expansion Unit The Multimedia Expansion Unit
43. earth symbol The core which is coloured blue must be connected to the terminal that is coloured black or marked with the letter N The core which is coloured brown must be connected to the terminal which is coloured red or marked with the letter L Never use mains plugs with the fuse carrier omitted In the event of the loss of the fuse carrier either replace with a carrier of the same type and manufacturer or replace the moulded plug with another mains plug wired as detailed above Guarantee valid in UK only This equipment is guaranteed by Acorn Computers Limited ACORN against mechanical and electrical defects subject to the conditions set out below Note Items which by their nature or design only have a restricted life are not guaranteed beyond such life Period of validity This guarantee shall be valid for a period of twelve 12 months from the date of purchase Other conditions 1 This guarantee is personal to the original purchaser is not transferable and shall not be valid unless the equipment was purchased from ACORN or from an approved ACORN supplier 2 This guarantee will be invalidated if the equipment is misused or damaged or is modified in any way without the written consent of ACORN or if any original component or accessory has been replaced by any component or accessory of a type not recommended or approved by ACORN or if operated other than in accordance with the Multimedia Expansion Unit User Guide 3 Any claims
44. emember not to leave SCSIMgr running on an unattended computer as anyone with access to that computer can then alter its SCSI settings Installing and running SCSIMgr 40 SCSIMegr is supplied on the Support Disc Before using SCSIMegr you should copy it either to another floppy disc or to your computer s hard disc if one is fitted To run SCSIMgr double click on its icon in the normal way A password window will be displayed e If no entry password has yet been set the message will be Set New Password If you don t wish to set an entry password just click on OK otherwise type in the entry password you wish to use for this copy of SCSIMgr and then click on OK e Ifan entry password has been set the message will read Enter Password Type the entry password for this copy of SCSIMgr and click on OK SCS Mgr You will have to wait a few seconds while the computer searches for any SCSI devices attached to your system The main SCSI Manager window then appears It is split into four subwindows BE SESI Manager 1601 Direct access 203 Mbytes CONNER CP30200 212MB 886 Read only 535 Mbytes SONY CD ROM CDU 561 847 Host CUMANA SCSI Interface SCSI driver reservation error Click to select SCSI device e The Devices window shows the devices attached to your SCSI bus and is used to set them up e g formatting verifying and controlling access see page 42 e The Partitions window is used to show and to s
45. en the CD ROM drive The CD ROM drive should always be switched on before the computer 3 Switch on the computer CDFS will look to see if a CD ROM drive is connected 4 The CD ROM icon will be displayed on the Icon Bar 5 Toconfigure the number of CD ROM drives you have attached to your computer click Menu on the CD ROM icon The CDFS icon bar menu will be displayed CDRS 8 Dismount Configure gt d 0 IDEDisc4 8 Apps 19 Setting up PC Soft to read CD ROM discs 6 Choose Configure Drives then enter the number of drives connected If only one drive is connected this step may be left out but the boot up time will be slower rarer pn Buffers i nm Drives IDEDisc 38 Het 7 Toconfigure the CD ROM buffers click Menu on the CD ROM icon Choose Configure Buffers then click on the required buffer size 16K is normally sufficient unless you are swapping discs a lot in which case 32K or 64K would be better Config kir 128K ure iit 18 IDEDised 8 Reset the computer to implement the new configuration Setting up PC Soft to read CD ROM discs 20 Many CD ROM titles are written in PC format so to get the best out of these PC Soft should be used in the computer PC Soft used to be known as the Acorn PC Emulator The copy of PC Soft you use must be version 1 6 or later If you are using MS DOS you must have version 3 3 or higher with CD ROM extensions If you are using DR DOS
46. et up the partitions into which the currently selected device is divided see page 47 Don t worry if it initially shows an error such as SCSI driver reservation error as above this is quite normal and is explained later e The Drives window is used to control which partitions of which devices appear as drives on the icon bar see page 50 e The fourth window in the bottom right corner is a Help window which briefly explains the function of the item beneath the pointer You can get more detailed help at any time by selecting the appropriate window heading or by clicking on the help window itself You can close the main SCSI Manager window in the usual way by clicking on its close icon This does not quit the SCSIMgr program To re open the window click SCSIMegr on the icon bar 41 The Devices window The Devices window All the SCSI devices attached to your system including the SCSI expansion card are listed in this window aA Direct access 116 Mbytes CONNER CP30180 12imb 3131 i Direct access 203 Mbytes CONNER CP38200 212MB 3428 86 Read only 535 Mbytes SONY CD ROM COU 561 1 7 a Host CUMANA SCSI Interface 1 14 If there are more than four SCSI devices connected to your system two scroll arrows appear beside the list which you can use to display those devices not initially shown The list contains the following information about each of the devices Heading Meaning Dev Device number t
47. ewmarket Road Cambridge CB5 8PB England This information will only be used to get in touch with you in case we wish to explore your comments further 2 Acorn CAJ 01
48. gr Your SCSI settings can still be changed by other copies of SCSIMgr say one with a different password or from the command line Disabling Commands If you want to increase security you can prevent a computer s SCSI settings being altered at the command line see The Set Host ID button on page 46 39 Installing and running SCSIMgr Locking the system A more secure way of ensuring that the SCSI settings are not changed is to lock the system by setting a system password see Lock System on page 52 Once the system is locked you can change the SCSI settings only if the entry password for the copy of SCSIMegr you are using matches the system password that was used to lock the system If you want to alter a locked system but the entry password for your copy of SCSIMgr doesn t match you ll need to start SCSIMegr giving its current entry password and then change SCSIMegr s entry password so it does match the system password that was used to lock the system see Password on page 52 Of course anyone else who knows the system password might be able to do the same so you shouldn t give it to anyone you don t trust Warning If you ve locked your system and have forgotten the system password you cannot bypass the security The only way to gain access is to return your SCSI expansion card to Cumana telephone 44 483 503121 to be unlocked Do not return your copy of SCSIMgr Leaving SCSIMgr unattended Finally you should r
49. he first digit is its logical unit number LUN the second its card number and the third its SCSI ID number Type Type of device the Host is the SCSI expansion card Size Capacity of device in Megabytes Vendor Name of device s manufacturer Product Manufacturer s identifying code or name Rev Firmware version number You cannot change any of the information contained in this list You simply select the device of your choice and relevant options in the form of buttons will appear below the list 42 SCS Mgr The Driver Flags button The Driver Flags button is present for all devices except the host If you click it a dialogue box appears with which you can control how the driver handles a particular SCSI device 3 SCSI Manager a Driver Control Flags for SCSI Device 00A Spread Reads 8 Bit Mode C e Spread Reads spreads out read accesses to the drive very slightly allowing more time for other interrupts to run Currently you need to turn this on if you are using Acorn Replay from either a hard disc or a CD ROM drive with an on board cache this is the default If you are using a CD ROM drive without a cache you will need to turn this off e 8 Bit Mode forces your interface to talk to the drive 8 bits at a time rather than at its default rate which may be 8 bits anyway You should leave this option turned off it is provided for diagnostic purposes only Both driver flags are stored in the EEPRO
50. he two fixing screws through the rear of the computer s case and into the threaded holes in the expansion card 13 Installing the mini expansion card CAO08 14 Reassemble the computer Reassembly is explained in Appendix E Inside the computer in the Welcome Guide Test the card is correctly installed When you have completed reassembly set up the computer as shown in the Welcome Guide and switch on the monitor When the monitor has warmed up switch on the computer Check that you have correctly installed the upgrade by pressing F12 to get to the command line then typing Podules If the card has been correctly installed the message CDFS amp SCSI Expansion Card or similar will be displayed Press Return to get back to the Desktop If the message did not appear shut down and switch off the computer remove the cover and check that the card has been correctly installed Reassemble and re test f the computer still does not acknowledge the presence of the expansion card switch it off and consult your supplier 3 Configuring the Multimedia Expansion Unit This chapter tells you how to connect the Multimedia Expansion Unit to your computer in its basic configuration with a single CD ROM drive fitted The simple instructions below assume that your computer has no SCSI devices fitted to it apart from those if any with which it was supplied such as the internal hard disc fitted to the A540 and R200 series You sh
51. he unit as well Avoid sudden extremes in temperature exposure to direct sunlight heat sources e g electric fan heater or rain Make sure that the unit is standing on a suitable rigid horizontal flat surface allowing enough space for air to circulate when it is in use Ensure that any wires and cables are routed sensibly so that they cannot be snagged or tripped over Don t tug or twist any wires or cables or use them to hang or lift the unit Make sure you have read and understood any installation instructions supplied with upgrade kits before attempting to fit them If you have any doubts contact your supplier Keep the original packaging in case you need to transport the unit and avoid bumping jarring or dropping it in transit Keep the plastic bags contained in the packaging away from children Keep the plastic bags protecting the leads but do not leave the leads in the plastic bags for long periods of time If you re going to move the unit make sure you park any hard disc heads first if fitted Switch off and unplug the unit from the power outlet on the wall at night or if you re not going to use the unit for a few days Switch off and unplug the unit and any accessories before opening the unit e g to install an upgrade The unit should be operated with the top cover which also acts as a fire enclosure secured to ensure the correct airflow through the unit DON T attempt to open any display or monitor unit whether sup
52. hooting guide on page 73 Loading Compact Discs To use a Compact Disc with the CD ROM drive you must first place the CD into the CD caddy The CD caddy is then inserted into the drive 1 To open the caddy apply pressure as shown in the following diagram and lift the plastic lid Place the CD into the caddy with the label side up Squeeze here Figure 5 1 Using a disc caddy When you have inserted a CD into the caddy close the lid You will hear and feel it snap into place When you have closed the lid you should be able to see the CD s label 2 Insert the caddy into the CD ROM drive making sure that the caddy is top side up you can read the CD s label with the arrow on the caddy pointing towards the drive As you slowly push the caddy into the drive you will feel a little 23 Ejecting a CD ROM disc resistance about three quarters of the way in Keep applying pressure until the caddy clicks into the drive just like pushing a 3 1 2 disc into a floppy disc drive 3 When the caddy is inserted you will see an amber light on the front of the drive flicker for a few moments This indicates that the drive is focusing on the CD If it fails to recognise the CD the mechanism will automatically eject the caddy Ejecting a CD ROM disc 24 When you have finished using the CD ROM and you have quit the CD ROM software simply dismount and eject the CD caddy like a floppy disc by pressing the eject button on the front of the dri
53. is correctly installed When you have completed reassembly set up the computer as shown in the Welcome Guide and switch on the monitor When the monitor has warmed up switch on the computer Check that you have correctly installed the upgrade by pressing F12 to get to the command line then typing Podules If the card has been correctly installed the message CDFS amp SCSI Expansion Card or similar will be displayed Press Return to get back to the Desktop If the message did not appear shut down and switch off the computer remove the cover and check that the card has been correctly installed Reassemble and re test If the computer still does not acknowledge the presence of the expansion card switch it off and consult your supplier 11 Installing the mini expansion card CAO08 Installing the mini expansion card CAO08 The CAO08 SCSI expansion card can be used with the A3000 A3010 A3020 and A4000 computers Using it you can attach a selection of SCSI devices without further modification A3000 The CA 008 A SCSI expansion card is intended to be fitted to BBC A3000 computers by an Acorn Authorised Dealer who will install and test the card A charge may be levied by the dealer for installing the card such a charge shall be entirely at the discretion of the dealer concerned This card and your Acorn A3000 computer both in their original packaging should be taken to an Acorn Authorised Dealer for installation A3010
54. itions and the RISC OS drives Drives fp i4 Dev 068 Part 8 Z 5 Dev BAL Part 8 Unmapped SCSI partitions are inaccessible until you change the setup this allows you to hide data from unauthorised users 50 SCS Mgr The and buttons These button are at the right hand edge of the window and are used to change the number of drives i e partitions available from none to four Mapping a partition to a drive To map a partition to a drive 1 In the Partitions window select the partition you wish to map 2 Inthe Drives window select the appropriate drive number not the drive icon So in the diagram above you would select 4 or 5 A message appears on screen indicating the choice you have made 3 Click OK to confirm the mapping or Cancel to change your selection The new or changed mappings will not take effect until you quit SCSIMgr Hidden drives You can assign a partition to a RISC OS drive number without it appearing on the icon bar However the drive can still be accessed by programs or at the command line This facility can be useful for providing system resources that are hidden from desktop users To hide a drive click on its icon in the Drives window It will become grey Drives E 4 Dev 000 Part 8 E 13 Dey O01 Part To make a hidden drive again available on the icon bar click on the grey icon Any change will not take effect until y
55. ked with the symbol shown here 12 Installing the SCSI expansion card Remove the plastic and metal blanking panels shown in the Welcome Guide Keep these safe in case you want to remove the upgrade in the future Fit the expansion card 1 Remove the expansion card from its packaging Be careful to avoid touching the pins 2 Check that all pins are straight If any appear crooked or splayed please contact your supplier 3 Offer the expansion card up to the computer as shown in Figure 2 1 Fitting the expansion card into an A 3010 The diagram shows an A3010 but the A3020 is very similar in appearance and the same principle applies to the A4000 The connector pins on the card fit into the sockets SK5 SK7 SK8 and SK9 the four computer expansion card sockets shown in the Welcome Guide expansion card back plate screw through from outside case 7 front of the computer Figure 2 1 Fitting the expansion card into an A 3010 The expansion card back plate fits inside both the plastic outer case and the metal lining of the computer so that the fixing screws will pass through the holes in the case and screw into the threads on the card back panel Locate the pins on the card carefully in the sockets on the computer then press the expansion card firmly down to make the connection Secure the card by screwing t
56. le Type The more technically minded amongst you may like to know that choosing a Boot File Type of Command E sets the drive boot option to 03 Exec whereas choosing a Boot File Type of Obey sets the drive boot option to 02 Run Configure SCSIDirCache If you instead choose Configure SCSIDirCache you can select the amount of memory used to cache SCSI directories by default 16K Info Password Lock System Configure Quit Boot Drive Cache Neva None 53 Quitting the SCSIMgr application Quit The Quit option quits the SCSIMegr application as detailed below Quitting the SCSIMgr application It is very important that you quit SCSIMgr in the correct way when you have finished using it When you choose Quit from SCSIMgr s menu its icon disappears from the icon bar A dialogue box may appear asking you to confirm that you wish to implement changes made to the SCSI configuration If you have inadvertently left a previously write protected partition unprotected you will see a message to that effect on the screen Click OK to continue or Cancel so that you can re open SCSIMgr and write protect the partition Remember if you have any problems contact your supplier 54 10 SCSIDiag CSIDiag is a simple diagnostics application that provides a means of monitoring the efficiency of SCSI peripherals on your system and may also assist your supplier in locating any problems you might have
57. made under this guarantee must whenever possible be made through the supplier from whom the equipment was originally purchased If this is not possible a claim may be made to any other approved ACORN supplier appointed by ACORN to service the equipment a list of whom can be supplied on application This guarantee together with proof of the date of purchase must be produced when any claim is made Any costs of carriage to and from the supplier must be paid by the purchaser 4 If ACORN agrees with the supplier that the equipment should be forwarded to ACORN for repair then ACORN will arrange for collection and return of the equipment at no charge In all other cases the supplier will be responsible for effecting any necessary repairs in accordance with ACORN s service policy Any repairs under this guarantee will be carried out at no cost to the original purchaser 5 If any equipment returned is found to comply with its original specification ACORN reserves the right to charge a reasonable fee for testing the equipment and for return carriage 6 The liability of ACORN under this guarantee shall be limited to the cost of repair or complete replacement at ACORN s discretion of equipment which proves to be defective 7 ACORN does not accept liability for any loss or damage during transit to or from the supplier or ACORN but every effort will be made to investigate claims of loss or damage if these arise THIS GUARANTEE DOES NOT AFFECT OR PREJUDICE THE P
58. mputer and or your SCSI devices 37 Adding new SCSI devices 38 Check SCSI IDs and termination Before switching on your system check that each device has a unique SCSI ID and that the SCSI bus is correctly terminated i e at each end only Once you have switched on you can use the Devices window of the SCSIMgr application page 42 or the Devices command page 63 to double check the SCSI IDs Switch on your system Turn the Multimedia Expansion Unit on by pressing the ON OFF switch on the front Turn on any other external SCSI units Then turn on the rest of your system as usual If you re unsure what s the best order in which to do this see your computer s Welcome Guide Configure your computer and software Depending on the device you have installed you may then need to change your computer s configuration or to change the configuration of existing software such as CDFS or to install and configure new software As well as the manuals supplied with your new SCSI device you should also consult any relevant parts of this guide in particular Configuring the computer on page 19 and Appendix A Using the command line on page 63 Prepare your device Before you can use a read write device it has to be formatted partitioned and mapped to your system This can all be achieved using the SCSI device management program SCSIMgr as detailed in the next chapter Read only devices such as CD ROMs and scanners do not re
59. n card SCSI interfaces use the same DB 25 female socket Its pin numbering is Pin 13 Pin 1 as eae 20000000000 Pin 25 Pin 14 Figure 11 2 Pin numbering of a DB 25 socket The following pins carry signals Pin Name Description Logic l REQ Request Active low 2 MSG Message Active low 3 VO Input Output Active low 4 RST SCSI bus reset Active low 5 ACK Acknowledge Active low 6 BSY Busy Active low 8 DB 0 Data bit 0 Active low 10 DB Data bit 3 Active low 11 DBS Data bit 5 Active low 12 DB 6 Data bit 6 Active low 13 DBZ Data bit 7 Active low 1 cD Command Data Active low 17 ATN Attention Active low 19 SEL Select Active low 20 DBP Data parity Active low 21 DBM Data bit Active low 22 DBO Data bit 2 Active low 23 DBA Data bit 4 Active low 25 TPWR Terminator power All other pins are connected to ground 0V 71 SCSI connectors Connector for internal SCSI devices The standard sized SCSI expansion card CAO06 has a pin header J2 for a 50 way IDC used to add internal SCSI devices to the host computer Its pin numbering is Pin 13 Pin 1 ae Direction of P D Paala e Pin 25 Pin 2 Figure 11 3 Pin numbering of J2 pin header on CA O 06 card viewed from above The following pins carry signals Pin Name Description Logic 2 DB 0 Data bit 0 Active low 4 DB 1 Data bit Active low 6 DB 2 Data bit 2 Active low 8 DB 3 Data bit 3 Active low 10 DB 4 Data bit 4 Active low 12 DB Data bit 5 Active low 14 DB
60. n t reformat a device unless you are certain that you no longer require the data stored on it A warning box will tell you this if you click the OK button to continue a Format Options window then opens Z SCSI Manager Format Options Keep Existing Defects Certify Media Use Verified Defects Keep Existing Defects retains the device s existing defects list a hidden file and any new defects located during verification will be stored in a new list If you turn this option off any existing defects list will instead be deleted Certify Media makes the device perform a complete surface analysis of the media during the format process provided it supports this function e g optical media You should normally do this for new media but can avoid 44 SCS Mgr doing so to speed up a re format process For example cerfifying a piece of optical media may take up to an hour whereas re formatting without using this option will only take a few seconds e Use Verified Defects uses the list of defects obtained from the last verify If you reformat using this option and then verify the disc again you should get no reported defects The error list obtained from a verify is lost as soon as you change the selected device When you ve set up the options you want click on Format to start the process A dialogue box tells you how long the format has taken so far SCSI Manager Formatting Please Wait 08
61. n top of the stack Ensure there is no more than 16kg on top of the Multimedia Expansion Unit and no more than 15kg on top of the computer unit As a guideline if you re using a standard 14 colour monitor this shouldn t be a problem but if you re using a larger monitor its weight may be too much for you to stack all three units Other computers You can use the Multimedia Expansion Unit as a monitor stand provided again that the monitor weight does not exceed 16kg Connecting and configuring the Multimedia Expansion Unit The first thing you must do is to connect the Multimedia Expansion Unit to your computer and ensure that it is correctly configured 1 Ensure that power to the computer is turned off 2 Locate the SCSI D selector on the rear of the Multimedia Expansion Unit and check the number shown is correct it should be 6 If you need to change the ID push one of the buttons on the selector one increases the number the other decreases it 3 Connect one end of the SCSI interface cable numbered MAC 5OTP to the external SCSI port on the interface card and the other end of the cable to either of the SCSI connectors on the back of the Multimedia Expansion Unit 4 Plug the terminator block into the other SCSI connector at the rear of the Multimedia Expansion Unit Connecting the audio signals The Multimedia Expansion Unit has a preamplifier which mixes the sound from its CD ROM drive s with the computer s sound This mixe
62. ndow shows its current partitions if any and allows you to alter them J 116 1 MB If there are no partitions the window will be blank see Creating partitions for the first time on page 49 When partitioning devices you should however note that the SCSI filing system only allows a total of 4 partitions to be accessed as RISC OS drives at any one time See The Drives window on page 50 for further details Editing partitions Select the partition you wish to edit before carrying out any of the editing functions listed below Please note that with the exception of partitions write protect status and name any changes made will not be invoked until you click either the Execute or the Wipe button The Size and buttons To change the size of a partition use these three buttons at the top of the window Use the and buttons to increase or decrease the partition size by I MB at a time Alternatively click the Size button and enter the partition size you require The OS button This button sets up a partition to use a different operating system from RISC OS At the moment RISC OS is the only option however in the future other options such as DOS may be available 48 SCS Mgr The WP button If you wish to write protect a partition click this button to toggle between Y es and N o This takes effect immediately If you wish to add delete or edit software on a write protected partition you need to use SCSIMgr
63. ng from command line 67 emergency eject button hole 24 headphone socket 17 69 LED 24 removing 19 20 unlocking 24 volume control 17 CDs 23 24 cleaning 73 ejecting 24 handling 23 loading 23 24 playing audio see CDPlayer using 25 27 CDSpeed 64 certifying see SCSI devices certifying ChangeFS 26 57 62 menu 58 output options 60 picture formats 57 processing options 59 scaling options 58 Compact Discs see CDs Computer Audio In sockets 17 CONFIG SYS file 21 22 75 Index Configure CDROMBuffers 64 Configure CDROMDrives 64 Configure SCSIFSDirCache 63 Configure SCSIFSDiscs 63 Configure SCSIFSDrive 63 Configure SCSIFSMap 63 disabling 39 47 configuring 15 17 connecting 15 17 conventions Vii Cumana telephone number 40 cylinders 46 D data transfer width 4 43 defects list 44 46 Devices 63 diagram see parts identification discs see SCSI devices dismounting see SCSI devices dismounting DR DOS version required 20 E Edit 26 Eject 65 ejecting see CDs ejecting expanding 1 33 38 F FILES DOS variable 22 formatting see SCSI devices formatting G GIF files 57 76 H handling 2 hard disc drive LED 2 headphone sockets see Mixed headphone socket and CD ROM drives headphone socket heads 46 hidden drives 51 IFF files 57 IMG files 57 internal SCSI devices see SCSI devices internal J JFIF files 57 JPEG see JFIF files L loading see CDs loading Lock 65
64. no stereo 0 7V RMS into 471 Q load CD2 Line Out sockets twin phono stereo 0 7V RMS into 47kOhm load only available if second CD ROM drive fitted Mixed Line Out Variable sockets giving combined signals from Computer Audio In CD1 and CD2 if second CD ROM drive fitted and varied using volume control on front panel twin phono stereo maximum output 0 7V RMS into 471 Q load 69 SCSI connectors SCSI connectors Multimedia Expansion Unit The Multimedia Expansion Unit SCSI connector is a 50 pin Centronics female socket Its pin numbering is Figure 11 1 Pin numbering of a 50 pin Centronics socket The following pins carry signals Pin Name Description Logic 26 DB 0 Data bit 0 Active low 27 DBD Data bit Active low 28 DB Data bit 2 Active low 29 DBO Data bit 3 Active low 30 DBJ Data bit 4 Active low 31 DBO Data bit 5 Active low 32 DB 6 Data bit 6 Active low 33 DB 7 Data bit 7 Active low 34 DBP Data parity Active low 38 TPWR Terminator power 41 ATN Attention Active low 43 BSY Busy Active low 44 ACK Acknowledge Active low 45 RST SCSI bus reset Active low 46 MSG Message Active low 47 SEL Select Active low 48 CD Command Data Active low 49 REQ Request Active low 50 VO Input Output Active low All other pins are connected to ground OV except pin 13 which is open and pins 12 and 14 which are reserved 70 SCSI expansion cards Both the sfandard expansion card and the mini expansio
65. o fit a higher specification PSU or have to use an external PSU e The device must not dissipate more heat than can be safely dispersed even in hot weather If you have any doubts over the suitability of a particular device for internal installation consult your supplier 33 More about SCSI You ll find full details of the Multimedia Expansion Unit in Appendix B Technical specification on page 69 these include its maximum operating temperature and the power available from its PSU As a rough guideline you may fit one additional device including the power amplifier to the Multimedia Expansion Unit without upgrading its PSU A cooling fan may be required for devices with a high power consumption Adding external SCSI devices As the Multimedia Expansion Unit incorporates SCSI devices you can add any external SCSI device to your computer system by simply daisy chaining the devices This is described below More about SCSI Before you add further SCSI devices to your system there are two simple but important issues you need to understand These are SCSI IDs and termination SCSI IDs 34 Each SCSI device must have a unique SCSI ID in the range 0 7 The software uses this ID to ensure it is talking with the correct device The interface itself counts as a device and its default ID is 7 This leaves IDs 0 6 available for other SCSI devices There are no rules on which sorts of device should use which IDs
66. odified in some way and do not always work correctly We recommend that you do not use a version of Windows supplied on CD ROM but an appropriate Windows application available separately from a PC dealer Note that Windows 3 1 will not run under PC Soft 27 28 CDPlayer Pi CDPlayer application allows you to play and control audio CDs using your computer and a CD ROM drive such as that in the Multimedia Expansion Unit CDPlayer is supplied on the Support Disc and is already set up to use the CD_ROM drive fitted to the Multimedia Expansion Unit If you have changed its SCSI ID from the default of 6 or if you wish to use any other CD ROM drives you should first read The Setup window on page 32 CDPlayer simulates all the functions of a CD audio player with all the normal functions such as play stop track search cue and review It also has a very comprehensive programming facility All the functions including drive select are controlled using the mouse To start the application double click on the CDPlayer icon this loads the program and displays its icon on the icon bar Click on its icon to display the main CD Player window used to control the CD Tje CD Player sH oo HH O8 44 08 00 00 Track number Skip backwards Skip forwards Playing time Slider Total tracks time Rewind Fast forward Pause Eject Stop Play Display keypad 29 The main CD Player window The main
67. on For systems fitted with a hard disc drive make sure that the drive heads are parked before attempting to move or otherwise disturb the unit To do this choose Shutdown from the Task manager menu Acorn Archimedes and R series 1 Switch off the computer at the rear and disconnect it from the mains supply by unplugging the power supply cable Unplug any peripherals that are attached and remove them from the computer completely Locate the screws holding the top cover in place see Figure 2 1 The screws holding the top case Remove the three screws at the top rear of the computer then remove the single screw located on each side of the unit towards the front iL HA VN ti TOP COVER Fix TOP COVER FIX Figure 2 1 The screws holding the top case Once you have removed the three rear screws and the two side screws slide the cover to the rear of the computer then remove it completely Slightly spring the sides of the lid outwards if necessary to make it easier to slide Check that a backplane is fitted to the computer The backplane consists of a small printed circuit board mounted vertically on the main PCB If the backplane is not fitted you will have to purchase one and install it according to the instructions which are supplied with the backplane before you can continue with the installation of the expansion card The standard backplane fitted to the Archimedes 400 series and the R140 c
68. on Unit arrived in just in case you have to store or ship it in the future Handling the Multimedia Expansion Unit The Multimedia Expansion Unit can be damaged if it is mishandled You should handle it carefully as dropping or sharply knocking the unit may result in optical misalignment and unreliable operation Placing it in very hot humid conditions may result in overheating and damage When moving the unit always ensure that you have removed any CD caddies from its CD ROM drive s otherwise you may damage the drives For full safety information see Guidelines for safe operation on page iii Parts identification To familiarise yourself with the Multimedia Expansion Unit please take a moment to study the diagrams opposite You will be connecting cables to and perhaps changing settings on the box so it will be helpful to know where everything is Note that some of the parts fitted to the Multimedia Expansion Unit do not have any function on the basic unit but are fitted ready for use by upgrades In particular the CD2 line out phono sockets are only used if you fit a second CD ROM drive and the Hard disc drive LED is only used if you fit a drive that does not have its own LED fitted to its front panel as the standard CD ROM drive does About the Multimedia Expansion Unit Power switch Power LED Hard disc drive LED CD ROM drive door Acorn MEU Mixed
69. ore you try to do anything read the manuals supplied with your new SCSI device In particular you should find out how the device is terminated how to set its SCSI ID and whether there are any restrictions on what that ID may be In some rare cases software supplied with your device may assume that it has a particular SCSI ID Decide the SCSI configuration you will use Using the information from the new SCSI device s manual and the guidelines above on SCSI IDs and Termination decide to which device s you are going to connect the new device and hence whether it needs to be terminated and what ID you will give it Check you have the correct cables There are several different types of sockets in use for SCSI devices Before you are ready to connect your new device you must have suitable cables available When purchasing your cable ensure that the plugs on each end match the sockets on the devices you are connecting Your cables must be high quality shielded cables designed for use with SCSI otherwise you may suffer from data corruption and poor reliability Your cables must be as short as possible this improves both data transfer rates and reliability The total length of the SCSI bus including any internal cabling must not exceed 6m even with the best quality cabling Install the new SCSI device When installing your new device ensure your entire computer system is switched off otherwise you may damage components on your co
70. ou quit SCSIMgr 51 SCS Mgr Menu items SCSIMgr Menu items The SCSIMgr menu appears when you click Menu over its icon or over the main SCSI Manager window SCSI Mgr Info Password Lock System Configure gt Quit Info The Info option gives information about the SCSIMgr application including its version number SCSIMor About this progran Hane SCSIMgr Password Purpose SCSI Manager Lock Susten Author O Copyright 1992 Cunana Ltd eT Version V1 35 02 Nov 92 Your copy may be a later version than that shown above Password The Password option displays a dialogue box to change the SCSIMgr entry password For more details of the security this password provides see Setting an entry password for SCSIMgr on page 39 Lock System The Lock System option displays a dialogue box to set a system password and then locks the system For more details of the security this provides and of how to alter the SCSI settings on a locked system see Locking the system on page 40 52 Configure BootDrive SCS Mgr If you choose Configure Boot Drive a dialogue box appears S SCSI Manager FileSystem Options SCSI a 3 Boot File Type Click on the icons to select whether your computer tries to automatically run a boot file Enable Autoboot from which drive and file system it will try to boot and the type of boot file it uses Boot Fi
71. ould read the more detailed instructions in Expanding your system on page 33 if e you wish to configure and connect further SCSI devices including any that you may have added to the spare drive bays in the Multimedia Expansion Unit e you have already added SCSI devices to your computer e you have altered the SCSI ID of any devices supplied as standard with your computer e g by moving jumpers on the internal hard disc fitted to the A540 and 8200 series You should also see the instructions supplied with your other SCSI devices Connecting the Multimedia Expansion Unit to your computer Position the Multimedia Expansion Unit The Multimedia Expansion Unit is designed to be stacked It can support a maximum weight of 16kg which should be spread evenly over its top rather than be concentrated in a small area If you do stack it ensure that everything is stable You don t have to stack the Multimedia Expansion Unit and can instead place it wherever is convenient in the space you have available Don t forget you ll need to have access to the CD drive and controls 15 Connecting the Multimedia Expansion Unit to your computer 16 Our recommendations are A5000 and A4000 Place the Multimedia Expansion Unit and monitor on top of the computer unit as shown on this guide s cover Acorn Archimedes and R series Stack the Multimedia Expansion Unit and computer unit in whichever order is most convenient then place the monitor o
72. plied with the unit or not DON T drop the unit or subject it to excessive bumping and jarring DON T spill liquids on the unit If liquid does spill turn the unit off immediately and take it to your supplier for assessment DON T obstruct or poke objects through the ventilation openings in the unit casing or the power supply or cover them with anything DON T balance any objects or stand equipment weighing more than I 6kg 33Ibs on top of this unit Warning this equipment must be earthed If the plug supplied is not suitable for the power supply in your country please consult your supplier UK information The mains lead supplied is already fitted with a moulded plug incorporating a 3A fuse If it does not fit your socket outlet the plug should be removed from the mains lead and safely disposed of The flexible cord insulation should then be stripped back as appropriate A suitable alternative plug should then be fitted If the replacement plug is intended to take a fuse then a 3A fuse must be used If you need to replace the fuse in the mains plug supplied then you must use a 3A fuse ASTA approved to BSI 362 As the colours of the cores in the AC power lead of this unit may not correspond to the coloured markings identifying the terminals in your plug proceed as follows The core which is coloured green and yellow must be connected to the terminal in the plug which is coloured green and yellow or is marked by the letter E or by the
73. proved Service Centres Acorn Computers Limited can accept no liability whatsoever for any loss or damage caused by service maintenance or repair by unauthorised personnel If you have any comments on this manual please complete the form at the back of the manual and send it to the address given there Acorn supplies its products through an international distribution network Your supplier is available to help resolve any queries you might have ACORN the ACORN logo and ARCHIMEDES are trademarks of Acorn Computers Limited MS DOS and WINDOWS are trademarks of Microsoft Corporation All other trademarks are acknowledged Published by Acorn Computers Limited ISBN 1 85250 135 9 Part number 0493 726 Issue 1 March 1993 Guidelines for safe operation The equipment described in this guide the unit is designed and manufactured to comply with international safety standards EN60950 BS7002 and is intended for use only as a computer expansion unit It must not be used for other purposes It is most important that unpacking and operation is carried out in accordance with the instructions given in this guide In the interests of continued safe and reliable operation observe the following guidelines Keep the unit at a room temperature of 5 C to 35 C 41 to 95 Fahrenheit and a relative humidity of 20 to 80 non condensing As a rough guide if you feel much too hot cold or humid the conditions are probably too extreme for t
74. quire any formatting etc prior to use and are normally supplied with appropriate software for their installation and use Security SCSIMgr a CSIMgr short for SCSI Manager enables you to set up and control the SCSI devices attached to your computer such as hard disc drives magneto optical drives CD ROM drives and the SCSI expansion card itself Before using such devices with your computer you may need to carry out a number of tasks such as formatting verifying and partitioning a hard drive or setting the ID number of your SCSI expansion card SCSIMgr gives you a desktop interface with on line help that will do all these tasks and more and in a far simpler way than using the command line to do so As with any software program which controls the set up of your computer system e g network management software it is of paramount importance to be able to limit access to those who are authorized Therefore SCSIMgr incorporates three levels of security which should deny any unauthorized people from changing the SCSI settings you have on your system Setting an entry password for SCSIMgr You can set an entry password which is required to use the SCSIMegr application itself see Installing and running SCSIM gr on page 40 You can change this password anytime you wish see Password on page 52 Warning This level of security does not mean that your SCSI settings cannot be changed it merely makes secure a particular copy of SCSIM
75. r a mini expansion card page 12 Installing the standard expansion card CAQ06 The CAO06 SCSI expansion card can be used with the Acorn Archimedes 300 400 and 540 series of computers with all R series computers e g the R260 and with the A5000 Using it you can attach a selection of SCSI devices without further modification In order to fit the expansion card you will have to remove the cover of the computer unit and one of the blanking plates at the rear of the machine The only tools you will require for this are No 1 and No 2 Pozidriv screwdrivers If you do not feel confident about carrying out this installation take the expansion card and your computer to your supplier who will fit the card for you A charge may be levied by the supplier for installing the expansion card such a charge shall be entirely at the discretion of the supplier concerned Disassemble the computer Before removing the top cover of the computer 1 switch off the computer 2 remove the power lead from the wall socket Do not reconnect the power lead to the wall socket until you have replaced the cover of the computer Do not make any adjustments inside the computer while the power lead is connected to the wall socket Important To protect the expansion card from static electricity e handle the card as little as possible preferably by the edges e avoid touching components or the connector Installing the standard expansion card CAO06 Preparati
76. rce image Processing options The Processing options allow you to control the image processing used in the conversion and display of the image ChangeF I Info Scaling Processing Options Processing _ Expand Dynamic Range Output _ Histogram Equalisation Fast _ Disable Dithering Save Choices _ Invert Input Quit _ Brighten Picture Black Correction 7 _ Gamma Correction L _ Pre Sharpening You ll notice that all of these options are off by default you will not normally need to change these settings Expand Dynamic Range will expand the range of colours in the image This normally brightens the image It expands the dynamic range of a picture to full scale Histogram Equalisation will most often result in a worse picture but it can be used to recover detail from an otherwise useless image Alternatively you can use it to look at information locked in a small part of the input scale Disable Dithering will disable Floyd Steinberg dithering This will usually result in an inferior image 59 ChangeFSI in more detail 60 Invert Input will result in your colour images having their colours inverted Black and white image are also inverted Brighten Picture will produce a picture that is slightly brighter than it should be Useful if you have dark pictures Black Correction is useful if you want to print the image on a laser printer You should use a number between zero and 128 though values between 3
77. s connected to the system by typing Devices A table similar to that shown below is displayed Device Type Size Vendor Product Rev 000 Direct access 116 Mbytes CONNER CP30100 121mb sisi 001 Direct access 203 Mbytes CONNER CP30200 212MB 3428 005 Read only 535 Mbytes CHINON CD ROM CDS 431 H48 007 Host CUMANA SCSI Interface 1 14 The three digit device number is made up as follows Ist digit logical unit number LUN 2nd digit card number if more than one SCSI card is present 3rd digit SCSI ID number You can map each SCSI device or partitions on that device using Configure SCSIFSMap drive device partition drive Hhost_number host_device For example using the table of devices above and assuming that there are twelve or more partitions on the SCSI device 001 Configure SCSIFSMap 4 000 5 001 11 HO 007 To cancel a mapped drive use the drive syntax e g 5 You may need to reboot your computer before these changes take effect Once installed a SCSI disc can be used just like any other disc To select the SCSIFS filing system as the current filing system in place of any other e g ADFS type SCSI You can also set it as the default filing system at power on using Configure FileSystem SCSI Configuring CD ROM drives from the command line To configure the number of CD ROM drives type Configure CDROMDrives n where n is the number of drives from 0 to 28 You can set n to 0 which obviously sets the configur
78. the image as a Sprite file Reprocess allows you to process the image again using any options you have changed on the main menu Appendix A Using the command line SCSI Commands SCSIFS supports all standard RISC OS filing system Commands for details of these see your RISC OS 3 User Guide The SCSI modules also provide some new commands of their own detailed below Configure SCSIFSDirCache Configure SCSIFSDirCache sets the configured amount of memory reserved for the SCSIFS directory cache A value of 0 sets a default value appropriate to the computer s RAM size Configure SCSIFSDirCache size K Configure SCSIFSDiscs Configure SCSIFSDiscs sets the configured number of SCSI hard disc drives recognised at power on Configure SCSIFSDiscs n Configure SCSIFSDrive Configure SCSIFSDrive sets the configured number of the SCSI drive that is selected at power on Configure SCSIFSDrive n Configure SCSIFSMap Configure SCSIFSMap sets the configured mapping between SCSIFS drives and disc partitions created using SCSIMgr Configure SCSIFSMap drive device partition drive Hhost_number host_device Devices Devices displays all the SCSI devices connected their product name capacity SCSI ID and firmware revision Devices 63 CDFS Commands SCSI SCSI selects the SCSI filing system as the current filing system SCSI CDFS Commands CDFS supports all standard RISC OS filing system Comm
79. the shield off the computer carefully there is a hole on the top to help you slide the shield off by inserting a screwdriver 3 screws 3screws Front of computer Figure 2 2 A5000 top cover fixing screws Installing the standard expansion card CAO06 niet Heun i aama ME OMN i a a ee ee oe 7 I o Figure 2 4 Removing the EMC shield The standard backplane fitted to the A5000 can take up to four single width or two double width expansion cards Fit the expansion card Warning Some components on expansion cards can be damaged by static electricity Avoid touching components on the card The backplane has upper and lower expansion card slots These correspond to the two full width blanking plates fitted to the back of an unexpanded machine Each blanking plate is held in place by screws one at each end 1 Choose the expansion card slot you are going to use and remove the corresponding blanking plate by unscrewing the two screws holding the plate in position 2 Use the supplied blanking plate T piece and two screws to make the expansion card up to the full width of the machine unless of course there is already another expansion card in the computer alongside filling the gap Installing the SCSI expansion card Once you have made the expansion card backplate up to the correct width you can install it into the computer
80. to unprotect the partition Once you ve done so close the SCSI Manager window and make the changes to the partition in the normal way Then re open the SCSI Manager window by clicking on the SCSIMgr icon and use it to reprotect the partition The Name button If you wish to change a partition s name click the Name button enter the new name and then click OK This takes effect immediately The name can contain a maximum of ten alphanumerics but no spaces The default name for the first partition is Part0 If as in the default you place a number at the end of the name of the first partition any subsequent partitions you create will by default use the same name but with the number incrementing by 1 so for the default name you would get PartO Part 1 Part2 etc The Clear button Click this button if you wish to remove all partitions from the list replacing them with a single partition consisting of the entire disc Creating partitions for the first time Use the Clear button to display the entire drive as one partition in the list You can then use the Split button see below to create further partitions If however you only require one partition click the Execute button at this stage to initialize the device The Read button By clicking this button you re list the partition settings currently in operation on the selected device Any changes you have made to the partition list but not executed are discarded The Split
81. ut mode chosen is displayed in the mode box ChangeFS Use current mode outputs the image for display in the current mode Ignore pixel aspect disables all pixel size information and assumes both source and output pixels are square Monochrome and Colour give an image in black and white or colour Special allows the use of special file suffixes These are explained fully in the on line documentation file FSIInfo Reprocess This option reads the file in again and processes it according to any new options you have set Fast This option speeds up the processing of the image by blanking the screen during processing Save Choices This option will save any changes you have made to the ChangeFSI options so that you can use the options again next time you run ChangeFSI Quit This quits the application removing it from the icon bar Image menu Once your image has been produced you can click Menu over the image to display a menu of information about the input and output image ChangeFSI Sprite Info gt Source Info gt Range Info gt Zoom c Save Sprite gt Reprocess Sprite Info gives the information about the Sprite output file Source Info gives the information about the source file Range Info gives you information about the dynamic range of the image 61 62 Zoom allows you to change the magnification of the image This is not the same as scaling the source image Save Sprite allows you to save
82. ve Alternatively you can type Eject from the Command line when in CDFS The CD ROM drive will eject the caddy about one third of the way out and you can then remove it The CD should be stored either in the box in which it was supplied or it should be left in the caddy If you are transporting the CD please return it to the case in which it was supplied If the eject mechanism appears to fail the drive may have been locked using the Lock command To cancel this use the command CDFS Unlock If the disc still won t eject as a last resort firmly push one end of a large paper clip into the emergency eject button hole on the front of the CD ROM drive the caddy will be ejected Using CDFS Using CD ROM discs The CD ROM drive in the Multimedia Expansion Unit can be used with CD ROM discs formatted for use with RISC OS or with CD ROM discs produced to run under MS DOS For the latter you will need a copy of PC Soft to get full benefit CDFS appears to the user very much like ADFS all the usual RISC OS Filer commands are available although you cannot of course save to a CD ROM If a write command is made to the CD ROM drive an error message will be displayed To open a directory display on a CD ROM which has been inserted in the drive click on the CD ROM drive icon on the icon bar The contents of the CD ROM will be displayed by the RISC OS Filer PSS CDRS NSD0S ARCHIMEDES DEMO DISC ARCHIMED DEMOS 1938
83. volume control a Mixed headphone socket Blanking plate for lt _ second drive CD ROM emergency eject button hole a CD ROM eject button CD ROM drive LED CD ROM volume contro Til CD ROM headphone socket Multimedia Expansion Unit front panel Figure 1 1 SZ2Qe Computer audio in CD1 line out CD2 line out Mixed line out SCSI ID selector SCSI connectors Upgrade blanking panel Screws for blanking panel Mains output Mains input Figure 1 2 Multimedia Expansion Unit rear panel Hardware and firmware requirements Hardware and firmware requirements Computers The Multimedia Expansion Unit will work with any computer that is fitted with RISC OS 3 or later and that has a SCSI interface As noted above expansion cards are available with the unit both in standard and mini sizes so you can add a SCSI interface to your computer If you need to upgrade your version of RISC OS a good time to do so is while fitting the SCSI expansion card since you need to open your computer to do either Computers fitted with a mini expansion card SCSI interface can read or write only 8 bits at a time this is a restriction imposed by the computer s connector for the expansion
84. ype E or whatever drive letter your CD ROM drive is configured as You can now access PC format discs in the normal way Consult the guide that comes with each title for information on playing CD ROM discs Do not try to access a CD ROM through RISC OS including via CDPlayer and through PC Soft at the same time Performance limitations VGA images Version 1 6 and I 7 of the Acorn PC Emulator the old name for PC Soft do not fully support the VGA Bios EGA is a partial implementation of VGA but some VGA images on PC format CD ROM discs cannot be displayed fully The title screens of some discs are designed to be displayed in VGA mode so such discs may not start off very well This does not however necessarily mean that the rest of Using CD ROM discs the disc cannot be read correctly Often the application will continue of its own accord or require Space or Return to be pressed In some cases the lack of VGA support will prevent the disc from running under the emulator at all Version 1 8 of PC Soft does support VGA Sound Titles which attempt to play sound through the computer s own sound system can cause program errors unless you first configure sound in the program to be off Most titles are able to play CD quality sound through the CD ROM drive so this problem does not often arise Windows Certain CD ROM applications contain their own version of Windows on the CD ROM itself These versions have often been m

Acorn Multimedia Expansion Unit User Guide

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