Question about Aiwa Audio Players & Recorders

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I have a aiwa av-d58 receiver that I bought from a goodwill. Recently I got the volume to work and while testing it (I had a subwoofer and the center channel hooked up) it suddenly made a loud thud/boom through the subwoofer and did it a few times before it cut and started to make a loud buzzing/humming sound and low volume. When I investigated it I found that the ribbon cable going to the digital input board had three bent pins, I tried to move them back and it helped a little bit but the buzzing was still happening but quieter. I just want to confirm whether or not it is just the ribbon cable or maybe something else as well.

Posted by LYNXPRO on

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Vernon Taylor

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  • Aiwa Master
  • 7,428 Answers

Probably something else.
The buzzing is typical of an open circuit input "receiving" radiated 50/60 Hz from nearby mains wiring.
An alternative source of buzzing is the 50/60 Hz mains breaking through into the audio due to failed smoothing and filtering in the power supply.

Capacitors that have been unused for quite a while can lose condition and fail when put into use again and this might have been the cause of the thump/thud/boom you noted.

I doubt it is the cause but it is very unwise to operate an amplifier without a full complement of speakers unless the volume is kept at minimum...

Posted on Nov 17, 2020

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5 Related Answers

Anonymous

  • 41 Answers

SOURCE: Loud humming coming from subwoofer

This can be caused due to an increase in local interference. The hum is decreased when you plug in the satellites because the interference is spread over a longer area. You may notice that speakers tend to hum around things like cell phones and power outlets. To see if this is the case, move the speakers to another part of the room if you can, slide the desk around, plug the computer in at another room, something like this. If the hum gets louder or quieter, it is interference at your new place. This can be solved by finding a new area to set up your computer stuff at. Since it's mostly the subwoofer, try elevating it off the ground, there may be a power main running under the floor.

Posted on Sep 04, 2007

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Anonymous

SOURCE: AIWA AV-D58 RECEIVER

We found that the protector came on and we searched for a solution, however we could not find anything that fixed it. Finally we found that some of the wires for one of our speakers were touching and adjusting those wires solved the problem.

Posted on Apr 22, 2008

ABRsvcs

  • 4234 Answers

SOURCE: I have a Aiwa Stereo Receiver Av-D58. The sound

If I remember this model correctly, there is only 1 direct input. The remainder of the inputs are bufferred through a switching IC. It is likely that this IC is defective. Are there any other symptoms at all?

Thanks,
Dan

Posted on Mar 13, 2009

Anonymous

  • 2 Answers

SOURCE: AIWA AV-D58 receiver ECO problem

Hi, I've found the problem. There was a closure in the Sorround Amlifier, and the protect circuit stopped the whole receiver. Br., csdombi

Posted on Jan 07, 2010

Anonymous

  • 150 Answers

SOURCE: Humming sound in subwoofer after it's been playing for a while

It sounds like you are describing an earth loop problem. I won't go into detail in this post, but try an isolation test first. disconnect everything from the reciever except the sub and try connecting say a BATTERY powered mp3 player or cd player to minimise connections to the electrical mains earth. you could also isolate things by taking your sub to a friend's house and trying it on their system.
If it is an earth loop use a process of elimination to find out which two pieces of equipment causes the earth loop. then apply filtering.
you can buy earth loop isolation transformers for about AU$26 and I've used one on my sub myself. Theyhave RCA (phono)plugs on each end and they connect inline with the signal cable to the sub amp.

as for the thumping sound it might be the speaker protection circuitry cutting off the amp to protect the subwoofer speaker from damaged. This might be triggered if the earth loop sound is causing the sub amp to overload and clip.

Failing this there might be a dried out overheated electro capacitor in the amp circuit causing the hum. Hav a chat to your local electronics person, who should be able to spot it!
Hope this puts you on the right track
Happy Hunting!

Posted on Jan 07, 2010

Testimonial: "Thank you for your explanation of the possible causes for this error. I will investigate with the methods you suggested! :-)"

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1 Answer

Picked up a av-d58 and cannot hook up my previous subwoofer setup. I have a tester setup that has been proven to work with anything. I checked and re-checked on other systems I own and the tester works on...


Can we simplify this a bit. It sounds like you're making more of the task than it requires.

When you say "can't hook up my previous subwoofer", do you mean physically impossible or that you can't get it to work after it's attached? This receiver requires a self-powered subwoofer.

Do you have the manual? The receiver is its own tester. I have no idea what kind of tester you're using.

Get it here. http://www.retrevo.com/support/Aiwa-AV-D58-Receivers-manual/id/1076dj789/t/2/ and give it read. Pages 6 and 19 discuss the subwoofer.

Aug 18, 2010 | Aiwa AV-D58 Receiver

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Hi, I've found the problem. There was a closure in the Sorround Amlifier, and the protect circuit stopped the whole receiver. Br., csdombi

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What kind of wire do I need to connect the subwoofer to the av-d58? The subwoofer is the same that came with the receiver but I have somehow misplaced the connection wire.


Without knowing more about the subwoofer (powered, passive, what kind(s) of input it takes, I have to take a wild guess. Most powered subwoofers use the old standard RCA cable. I there are two jacks on the sub for Left and Right input you just get an adapter to make the cable plug into two jacks.

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I have a Aiwa Stereo Receiver Av-D58. The sound


If I remember this model correctly, there is only 1 direct input. The remainder of the inputs are bufferred through a switching IC. It is likely that this IC is defective. Are there any other symptoms at all?

Thanks,
Dan

Mar 13, 2009 | Aiwa AV-D58 Receiver

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This Protection activates if you hook up Unmatched Speakers i.e less or over impedance as required by Aiwa Amp. 2nd reason can be extra speakers attachment.

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Nope sorry you will need to get a remote for this unit. i found you one from an original remote replacement place. it is just like the remote you do not have. Go to http://www.remotes.com/remotes/servlet/rs?a=gmi&uid=11741955727330&smodel=AVD58&brand_pn=AIWA_AVD58 To order a replacement remote. Sorry this is all that can be done in your case. Good Luck

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