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i have an amp aux410r by sansui and the speaker protection relay wont switch off.....? Answered

there is no obvious  problems in side, the output stage has no power to amplify untill i can figure out what the problem is any sugestions

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ronreb (author)2010-06-30

You may think that you do not have problem but I would bet you do. Did you check the audio output stage for dc offset at the relay ? Speaker protection circuits usually work & they are there to protect the speakers from dc current that will burn the voicecoils. Good luck

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andybuda (author)ronreb2010-07-03

i got a mate who works in the industry to fix it for me and it turned out that a lead was connected from mic to an input or something like that an there was a problem with the mic. i didnt do it and dont know who did iv not had it working since i got it years ago.. iv fixed amps but this was beyond me.. there was no problem with output stage and i tested it many ways....errr

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