Editing Acorn Archimedes A4000 Maintenance Guide (section)

== Capacitor health ==

The A4000 board uses conventional leaded electrolytics plus surface-mount ceramic decouplers, and is '''not''' one of the Acorn machines that suffer leaking surface-mount electrolytics (those are the [[Acorn Archimedes A5000]], the A4 laptop and the Risc PC).<ref name="stardot">[https://stardot.org.uk/forums/ Stardot forums] (Acorn restoration community). The surface-mount electrolyte-leakage problem affects the Acorn machines fitted with SMD electrolytics; the through-hole-capacitor machines such as the A3020/A4000 are generally unaffected.</ref> The recap priorities are therefore the PSU module and any visibly aged board electrolytic. Full detail: [[Acorn Archimedes A4000 Capacitor Guide]].