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Ursprünglicher Beitrag von: remacberlin ,


You will have to remove the logicboard (quite easy on these machines) in order to get to the underside of it. Then you can check the capacitors with an ohmmeter. A good capacitor should have a steep rise in resistance when connected. Visual inspection is sometimes not good enough. The capacitors on these machines are prone to failure anyway and should be replaced with higher rated parts. No easy task.