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ARCHIMEDES ARTHUR ROM FITTING INSTRUCTIONS
This leaflet tells you how to upgrade your Archimedes 300 Series to version 1.2 of the Arthur
operating system. It is not difficult to carry out the upgrade. All you need to do is to:
•
Remove the top cover of your Archimedes
Remove the system ROMs (four integrated circuits)
•
•
Carefully insert the four new ones.
The only tools you will need for this are a medium size Phillips screwdriver (cross-head) and a small
flat-bladed screwdriver or IC extraction tool. You will, however, need to take care to protect the
ROMs from static electricity as this can seriously damage them. However, if you are unhappy about
upgrading your Archimedes yourself then your Acorn supplier will be able to do it for you.
ATTENTION! Arthur 0.2 owners - please insert your old 0.2 ROMs into the protective foam
which carried your new 1.2 ROM set, and return the 0.2 ROMs to Acorn using the envelope and
reply paid label provided in this pack. This request does not apply to Arthur 0.3 owners.
REMOVING THE TOP COVER FROM THE COMPUTER CASE
Switch off your Archimedes and disconnect the unit from the mains by unplugging the power
1
supply cable.
Unplug any peripherals that are attached and remove any monitor or other loose items standing
2
on the top of the case.
Locate the screws holding the top cover in place. (See diagrams below.)
3
Remove the three screws at the top rear of the unit and the single screws on each side of the unit.
4
Slide the cover of the unit to the rear of the machine, tilt the back upwards and then slide it off.
5
You may need to `spring' the sides outwards slightly. You should remove the cover completely
and set it carefully to one side.
The position of the screws holding the top cover
1
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Summary of Contents for Acorn Archimedes 300 series
- Page 1 ARCHIMEDES ARTHUR ROM FITTING INSTRUCTIONS This leaflet tells you how to upgrade your Archimedes 300 Series to version 1.2 of the Arthur operating system. It is not difficult to carry out the upgrade. All you need to do is to: •...
- Page 2 LOCATING THE SOCKETS ON THE BOARD Position the machine so that you are facing the front. The sockets will then be located halfway along the right-hand side of the main printed circuit board. They are labelled: IC24, IC25, IC26 and IC27. See diagram separate sheet.
- Page 3 INSERTING THE ICs You are now ready to insert the ICs. When you handle the ICs, it is very important that you avoid touching the pins and that you protect the ICs from static electricity. Remove the ICs from their packaging, holding the IC between finger and thumb. Check that all the pins on the IC are straight.
- Page 4 Use the mouse (as described in your new Welcome Guide) to select operation. NOTE: To go straight into BASIC (rather than the Desktop) set the configuration to LANGUAGE 4 ©Acorn Computers Ltd, 1987 Published by Acorn Computers Ltd Part number 0476,350 Issue 1...
- Page 5 ARCHIMEDES ARTHUR ROM FITTING INSTRUCTIONS Acorn Computers Ltd are now using an additional supplier of ROMs, therefore, you may have been supplied with the ROMs described in this Addendum rather than one of the sets referred to on page two of the Archimedes Arthur ROM fitting instructions.
- Page 6 Archimedes 300 series PCB showing the position of the four ROM sockets FRONT OF MACHINE ROM 1 is in socket IC24 ROM 2 is in socket IC25 ROM 3 is in socket IC26 ROM 4 is in socket IC27...
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