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Message: <blockquote data-quote="2cvbloke" data-source="post: 929879" data-attributes="member: 199791">Only if you find bad ones, with the PSU being the usual place for them as this is where they are stressed the most...If any look bulged on top, swollen in the sides or have leaked from the top or base, those are the ones to replace, but only if you find them, if not, leave them be, as to properly check for bad caps involves a lot of fiddly hard work removing them and testing them with an ESR meter (not cheap in itself) which on something like a DAB radio really isn't worth the man hours, but the odd behaviour to me says there's a bad cap in there somewhere, as a bad cap can cause all kinds of odd behaviour, it's just a case of finding them...</blockquote>