Question about Sony SA-WM200 Subwoofer
We're talking Sony SA-WM200 Sub, right?
OK, now we go through the usual drill.
Does it work during speaker setup?
Yes? Not broken. Redefine the failure mode and start over.
No? Is it defined to the receiver?
Yes? Are you sure the RCA cable is ok? Try another.
Still unresolved?
Let's prove it's getting an input. Move the cable from the Sub Woofer Out to either channel of the Main Output (below the speaker connectors) and choose FM as the source. This would eliminate direct a Front Channel signal to the sub, bypassing the internal dependency of directing only LFE to the sub. Granted, there may not be much low bass in the program but a working sub will reproduce something in the presence of full-range signal. You may have to actually touch the driver to feel it moving.
Still nothing?
Then we're doing forensics.
Did it just stop working while you weren't looking or was there something traumatic that preceded it?
Disconnect the power to the sub. If you can access the actual terminals on the back of the speaker driver you could disconnect them and attach speaker leads from, say, your front right speaker, to see if the driver is alive. Or, if you have an ohmmeter, just measure across the terminals. You should have some kind of low single-digit reading but not a dead short. If the driver is ok that would point to an internal amp problem. Too bad. A pro needs to look at it.
I had a Klipsch sub amp die on me and the local guru couldn't do anything with it so I disconnected driver from the amp, ran some cables outside the enclosure from it and got a separate amp to push it. So it's not a total loss.
Posted on Jan 20, 2010
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I apologize for my lack of clarity. Stopped working means sound stopped comming out of it. That's it. The little green light for power still works, so electricity is getting at least that far. The receiver is a Yamaha RX-V730. I've never had a problem with it. The connection is the standard single RCA line that plugs int the rec's SUB WOOF OUT jack. I took the back off of the sub and found a small cylindrical fuse that appears to be fine. Thank you for responding to me. We don't know each other which means you are a considerate person. Kevin
I apologize for my lack of clarity. Stopped working means sound stopped comming out of it. That's it. The little green light for power still works, so electricity is getting at least that far. The receiver is a Yamaha RX-V730. I've never had a problem with it. The connection is the standard single RCA line that plugs int the rec's SUB WOOF OUT jack. I took the back off of the sub and found a small cylindrical fuse that appears to be fine. Thank you for responding to me. We don't know each other which means you are a considerate person. Kevin
Stopped working? What's that mean? Does it light up? Make any sounds at all? It helps immensely to know what DOES work. "It's broke" isn't helpful. Do you know if it's dead or is not getting an input? Not knowing your receiver or attachment details its impossible to go further. This could simply be a case of a wrong setting or subwoofer output RCA cable bad. Need to know more.
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