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An Acorn A5000 4Mb base unit ready for a cleanup, these were once
the flagship of the Acorn range of 32bit computers.
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A reference shot of the rear of the unit, showing power sockets,
rear mainboard connectors and blanking plates over backplane.
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Unscrew and remove the 6 screws indicated in the base of the unit.
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This allows the top cover to be slid off towards the rear exposing
a dirty interior. PSU fans do there job at keeping the unit cool, but also
suck in all manner of dirt and grime.
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Next remove the 4 screws in the backplane raiser card. Take care
not to slip and damage anything.
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With all screws removed, ease the card up at each end, a bit at
a time, until it becomes free of the mainboard connector. Then lift free.
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Next pull out the power and data cables to the Hard Disk Unit,
followed by power and data cables to the Floppy drive. Then remove the
single screw indicated to release the drive chassis.
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The drive chassis can now be lifted upwards at the rear then pulled
rearwards to draw it out of the main chassis.
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Next pull the Front-panel LED connector from the mainboard. Its
a bit of a squeeze if a Memory upgrade is fitted like in this case. Next
spring the 6 clips that secure the front panel.
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The Front panal can now be removed, taking care to feed the LED
cable through the hole on the front of the main chassis.
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Next pull off the 6 power leads, noting where they came from. Also
the lead to the internal speaker.
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Remove the blanking plates at the rear, 4 screws. Followed by the
2 screws that hold the mainboard in place. The mainboard can now be slide
out to the rear of the unit.
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To remove the PSU, pull off the power button, noting which way
up it went. remove 2 screws that hold the switch in place then 2 screws
on the PSU, it can then be lifted free of the chassis.
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An image of the mainboard after a good clean.
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All components cleaned ready for re-assembly. Clean internals with
a brush and vacuum cleaner hose, external surfaces with damp cloth ONLY!.
Re-assemble is reverse of above.
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A reference shot of this fine computer
up and running.
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