Question about AMC Multimedia 3050a 2-Channel Amplifier

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No sound through my AMC 3050A

I've recently moved my amp to a different location, and after the move I get absolute silence out of it. I tried using a few different inputs but I'm afraid something is fried within... The power on button lights up and seems ok, but I get no sound. Do I need to go to a shop? Or is there something I can check? Thanks, Alon

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  • Alon Almog Sep 16, 2006

    I have a few updates.
    First of all, I checked the phones output and it works, so the amp itself works fine but the left/right outputs are not working.

    Second, I took the amp to the shop, and the first thing they've chekced are the fuses (there is one fuse near the AC input and two more fuses for speakers output - one for each speaker). All fuses checked out fine.
    The guy at the shop told me that 99.9% of the problems with amps not outputing sound are burnt fuses - so if anybody encounters this problem check your fuses.

    Unfortunatly, all my fuses check out fine, and the problem is still unidentified. My feeling is that there is a problem with the switching circuit that switches between phones and the speakers. This circuit has a relay built into it which is usually regarded as a less reliable component in electronics (as it has a mechanical moving part inside it).

    The guy at the shop also told me that malfunctions with AMC amps are so rare, that he'll fix it within warranty (even though warranty has expired 6 months ago).

    Hope this helps anybody else out there.

    Alon Almog

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Hi, I took the device to the store I brought it from, the technician was amazed that the AMC was broken. Apparently, it is one of the more reliable deviced around. He has checked the fuses and he was again amazed that they checked out OK. He ended up replacing the main board and it works fine now (naturally).

Posted on Aug 26, 2007

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Strange problem. If you have moved the equipment carefully, reconnected all cables and inputs properly in the right sockets and terminals, i don't see any reason why the amplifioer should not work. And if Power is Ok, Amp should work. Pls recheck all connections properly once again.

Posted on Sep 15, 2006

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