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.

Try to RESET the receiver, here is a link to your operating manual. Go to page 23
Aiwa AV D58 User Manual

Any powered sub will work.

Firstly, and definitely, your "black" is subwoofer line out.

Check your AV receiver if the subwoofer option is activated. I've known some receivers that have the option to disable subwoofers and push all the bass into their front speakers.

Next, you have to check if your subwoofer is on or off? what about the volume of the sub?

If your subwoofer is passive, which means it does not require powering up using the mains, then you will have to get a seperate amplifier to power the sub up.

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.

The Aiwa only provides a pre-output for the sub amplifier.

I'dont have solution but I have the same problem.
Do you find solution ?

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

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

Receivers often have the ability to switch off the subwoofer channel. Especial if it wasn't connected before. If it has the ability to do a speaker test or set up try that. If it bypasses the subwoofer that will confirm the channel is not on.

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