Question about Aiwa NSX-TR77 CD Shelf System

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Aiwa NSX-TR77 I Tested out the speakers with some BASS MP3s to test the bass and the Hifi Went off, it shows only the red standby light. When i click power on it says HELLO then it goes off to standby :( MSN is [email protected] Email [email protected] any help would be greatly appreciated :(

Posted by james jay on

  • james jay May 12, 2006

    The speakers in the Hifi was not the original ones, but they wasnt over 300W they was ok for months until i tested it on full volume :(
    It doesnt even come on without speakers or diffrent ones so its def not the speakers, something inside it must of gone i dont know about HIFIs. It sounds to me like it needs a new power supply unit inside it, im an IT Tech so i wouldnt know.

    Im a bit stuck as in what i should do now ? Is it worth taking to a repair shop ? it was £199 when i got it.

    I also had a sharp 5 speaker hifi and it started smokking when i connected about 10 speakers into the back and i dont know if i should throw them away.......

    Thanx for your reply i didnt think i would get a reply.



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Well Jamez sounds like you have eather blown the soeakers or the output IC's inside the unit. If you have a meter you can simply disconnect the speakers and test the resistance of the speakers with an ohm meter. If you dont have an ohm meter then you can connect them up to another stereo or have them and the unit tested at a repair center. Sorry not really any serviceable parts in these systems. Good Luck

Posted on May 12, 2006

  • Anonymous May 12, 2006

    Jamez!!! of course your gonna get a reply if we see your [email protected]!! Now with your problem its a possibility that your power supply is blown BUT I bet my last dollar that you blew up the out put ICs as you cant overdrive these systems like the old to3 output transistors or even the old tube amps By connecting 10 speakers to them!!! Im not sure what Pounds convert to in american mony but Its probably fried beyond repair. In the future if you need more power or more sound hook up an addition amp to your uunit through the audio output low impedence plugs and drive the sPeakers with another amp. As you shouldnt ever go below 6 ohms on most of thes shelf type systems. maybe 4 ohms tops. If you add two speakers together that say are 8 ohms it cuts the impedence in half to 4 ohms so that would be over driving the system by double of what you should be driving it at Thats why at high voluyme you smoked it. Good Luck Man



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