Question about Mcintosh MC300 Amplifier

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Blown amplifier. My MC300 turns on for a split second and then it shuts off. I had changed the fuse and the same thing happens. Is it merely a fuse issue or is the power supply problem and how can I fix it. Please help

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Open it up and look for bulging electrolytic capacitors... even if none are bulging then are probably dry as a bone by now and need to be replaced with newer ones. look for burnt solder traces. I had an amplifier where the main power switch was acting up... i had to straighten the frame slightly so that the long plastic push rod didn't bind on it. Most things in electronics repair is somewhat obvious. Burned resistors etc. Make sure to use the correct ohms speakers and not to double them up.

Posted on Oct 19, 2013

  • PDiddy
    PDiddy Oct 19, 2013

    Did not see any bulding electrolytic caps or see any burned wires. Still not working.

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