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19th June 2012, 12:49 AM
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diyAudio Member
Join Date: Jun 2012
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Tivoli Model One - Supply overvoltage, where to look for repair
I have been given a Tivoli Model One that has been connected to a 230VAC 50Hz supply but is only rated for a 117V 60Hz supply. (The previous owner thought they were onto a good thing but didn't realize the voltage mismatch before powering up, darn....)
Now when connected to a 12VDC supply only a buzzing noise can be heard from the speaker, volume or tuner location makes no difference. I have pulled apart for a peak and nothing obvious other than the power filter capacitor, (4,700uF) looks slightly bulged out, suspect this has blown. I plan to replace this and try my luck.. Any other ideas on where i should be looking for potential damage? Any help would be appreciated. Cheers Fordie |
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