Specifications

9. Refit the data cable and power cable (check orientation). Carry out the second Floppy
Disc Upgrade as per the instructions supplied with the kit.
10. Slide on the upper case and refit the 5 fixing screws. Submit the unit for testing.
11. Configure the drives as per the instructions supplied with Floppy Drive Upgrade Kit, AKD
51. Ensure that the drive select switch on the disc drive is set correctly.
12. Test the disc drives by powering up the unit, and using a formatted and verified disc, carry
out following sequence:-
i) Catalogue Drive 0: Check drive 0 LED is on only.
11) Catalogue Drive 1: Check drive 1 LED is on only.
13. The original disc drive should be be suitably packed and returned to the Acorn Spares
and Warranty Department, Fulbourn Road, Cherry Hinton, Cambridge, with a fully
completed Service Report. A replacement unit will be sent to you to replenish your stock.
Distributor dealers should return the exchanged drive to their distributor for action - not to
Acorn direct.
NOTE: This modification is to overcome a fault when the Second Floppy Disc Drive is
added to the Archimedes A410/1 computer. If R61 is fitted to either drive then both drive
select LED's will illuminate regardless of which drive is accessed. This modification applies to
Archimedes 410/1 computers with a second drive fitted. Single floppy drive machines do not
require modification.
All AKD51 upgrade kits should contain Citizen drives which are correct, i.e. R61 is not
fitted. It should be noted that both drives to be used must have R61 removed.
* Before fitting a new drive check that R61 is not present.
When completing the Service Report, please ensure that the full serial number of the host
computer AND the Second Drive Upgrade Kit is quoted accordingly. Failure to do so will
result in the Service Report being returned without action.
Please note: R61 is mounted upon the disc drive PCB by means of surface mount
technology. NO attempt should be made to remove this component. Any unauthorised
rework of this drive will invalidate the warranty of the modified item.