Specifications

ARCHIMEDES A410/1 COMPUTER - CITIZEN FLOPPY DISC DRIVE.
MODIFICATION WHEN FITTING SECOND FLOPPY DISC DRIVE.
DEALER UPGRADE.
A problem has been identified when a second Floppy Disc Drive upgrade is fitted to within the
Archimedes 410/1 computer. The problem manifests itself by showing both disc drive LED's
being lit when either of the disc drives is accessed.
A 'Field Change Order (FCO 2007) has been authorised by Acorn to effect the replacement of
the original drive within the computer. Details of how to detect the problem and the means of
rectifying this problem are given below.
Replacement Instructions.
1. Remove the unit from the packaging and set aside the packaging for re-use following the
repair.
2. Remove the upper case by unscrewing the 5 fixing screws, 3 are located at the rear and 1
on each side. Slide the upper case towards the rear of the computer.
3. Gently disconnect the data cable and the power cable from the drive. Note the orientation
of these cables before they are removed.
4. Unscrew and remove the 2 fixing screws which secure the floppy drive bracket to the saddle.
5. Carefully slide the disc drive bracket and the floppy drive assembly towards the rear of the
unit. Turn the drive over to check if component number R61 is fitted. This device is located
adjacent to the MOD rev box. If R61 is fitted, proceed to No.6. If not, refit the drive and leads
- no further action is required. Therefore, proceed with the fitting of the Second Floppy Disc
Upgrade as described in the fitting instructions supplied with the upgrade kit.
6. Remove the disc drive from the bracket by removing the 4 fixing screws - retain these for
later use.
7. Fit the new disc drive into the bracket - refit the 4 fixing screws. NOTE - the new drive can
be identified by checking that R61 is NOT fitted. •
8. Gently slide the bracket and disc drive assembly back into the front plastic moulding
ensuring that the disc drive bezel is flush or within 0.5mm of the front face.