Jvc subwoofer sx pw22 working fine then just stopped working. power light is on and fuse is not blown. any suggestions?

have you looked at the plug on the side of the gearbox , it may have come loose or broken wire . or have you checked all the fuses maybe one blown.

There is probably an internal fuse which you can check with the amp unplugged (unbolt the amp from the woofer, noting all gaskets.) If it's blown, it could have fatigued so just replacing it would fix it, or it may have blown because the amp or power supply failed. If that is the case, a new fuse will blow immediately. I can fix it for you if it has a blown amp or supply. Contact me at [email protected].

If active woofer and getting power then either the woofer surround is blown or the internal amp is blown. Which is it - check out.

take a digital volt meter and check the power cable and ground on the amp to see if you are getting any power . should read 12.5 or more if no power then check fuses and the ground connection

if you have power then replace the equipment that not working

i had the same problem a few times, they are pretty picky receivers.
first take a look in your settings and make sure none of your speakers are set on large, if they are they automatically shut off the woofer,
2, try the adjust option and crank the bass and throw on the bass boost
3. manually turn the woofer on through the receiver itself
4. try and turn up the woofer itself if is powered
5. try hooking the woofer up to the secondary speaker jacks by bridging it, (positive on left and negative on right for even power)

if none of these options work then the woofer itself may be defective even though it lights up

Have you set speaker setup configuration to SUBWOOFER YES? Also check SUBWOOFER OUT ON/OFF button on the front panel.

I had a similar problem with a jvc 8040. when I replaced the fuse it became very obvious that the b1560 output on the center channel was blown (smoke and sparks, always a dead giveaway). I haven't fixed the center channel yet but simply unplugged the center channel board and removed it from the unit. Now everything works fine except of course the center channel. Pre outs still operate just fine so a slave amp could be used for center channel power, or you could just go and buy a marantz amp; I did and then I realized that I was lucky that the old jvc quit.

my power goes to the subwoofer and the little green light comes on for just a second and the you hear a click sound and the subwoofer power goes out. I have the JVC DVD Digital Cinema System TH-C90. Can you please help???

I could either be the sub or the main unit. The main unit actually sends a signal to the sub to turn it on so if that circuit is bad in the main unit the sub is never going to come on. I've also seen bad cables (You'd be amazed at how stubborn people can be when din connectors don't cooperate).

What system are you using it with, how do you have it connected, when you say the system does not work as a result, does it mean that the system does not power up, or no sound?