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.
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.
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
Tips for a great answer:
May 19, 2014 | Car Audio & Video
Feb 21, 2013 | Car Audio & Video
Jan 11, 2013 | Computers & Internet
Sep 08, 2011 | Jamo SUB-650 Subwoofer
Jul 05, 2011 | Pioneer VSX-C300 Receiver
May 05, 2011 | Kicker Car Audio & Video
Dec 23, 2010 | Sub-Zero 685/S Stainless Steel Side by...
Aug 11, 2010 | DHD NTX-2004 Car Audio Amplifier
Dec 17, 2008 | KEF Audio PSW 2150 Speaker
Mar 04, 2021 | Logitech Audio Players & Recorders
484 people viewed this question
Usually answered in minutes!