Posted 25 September 2012 - 05:12 AM
Yes, typically they bulge, split or leak leaving a pale brownish residue. Most monitors use between two and four reservoir capacitors, and they should all be replaced even if not all show distress. Any smaller electrolytics can mostly be assumed to be OK, unless they're leaking etc. The large high voltage capacitor that smooths the rectified mains might also show signs, but mostly it's OK. Remember it could hold a high voltage charge, although if the power supply is still operating, it should discharge.
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