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JVC SX-DW303 Subwoofer (packaged with RX-ES1SL) - no power

Hi. I have the RX-ES1SL receiver. The SX-DW303 that is pacakged with the QP-ES7 AL system, has developed a fault. The subwoofer has always made a healthy click when turning it on from the switch on the rear, unfortunately there would now apear to be zero power getting through to the unit, even though my resounding click is still there on switching on. It's not the fuse, and i haven't changed any settings for it to end up like this on the receiver. Subsequently i've mucked around with the settings on the receiver, of course, to no avail. The power light on the front of the subwoofer is VERY dim, so there's something getting through. Previously to it ending up in this state it used to periodically switch on/off/on/off all the time after prolonged (2hrs) use, which was annoying as hell. That might be linked, i don't know. Any thoughts on how to get this product back to full fitness? It's out of warranty. :( Kevin.

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SOURCE: No subwoofer output

yes, you do have to set up the sub output in the reciever.

Posted on May 17, 2008


1: In most cases there are two FET`s gone you can use a normal IRF 530 but cut the heat sink from the FET do it with a pincer not with a grinding machine! (static electricity!). Before you switch on the set pay attention for the following parts!
2: The two coils that are mounted under the metal housing on the main board look of they have a other color if so they are burnt Check also the SMD parts under the main PCB.
3: The two SMD Elco`s that are mounted on the little PCB they have in most cases a high ESR. The value must be under 1 I thing that all the troubles you can have with this set are coming from this two elco`s (100uF 16 volt.)
4: look for a short cut on this little PCB pay attention to the two SMD gates. Measure the S/C over the +5 and +12 volt lines and check both PCB visual.
5: You must bring in a lot of heat to remove the both IRF`s use a good flux and do not fear the heat they can have it.
Because you must use a big Iron there is the danger to damage this aluminum layer check visual after you have solder the two FET`s all the connection with the smaller parts measure them with a Ohm meter. This was the fault in mine case there was a open connection to one of the gates of the FET`s

Posted on Jun 03, 2008

  • 24 Answers

SOURCE: Connecting Powered Subwoofer to a Receiver

you will need a line-level converter to use this subwoofer- it is a rectangular-shaped box with wires coming out on one end and red-and-white RCA plugs one the other. The end with the wires coming out will hook to the receiver, and the other end will need to plug into the sub.

Posted on Feb 21, 2009

  • 2 Answers

SOURCE: I have a JVC rx-888

Use any RCA cable. If you have been aquiring audio video equipment over the last years you probably have some lying around. The Red Green and Blue ones that came with your Flat TV which you are not using because you hooked it up with HDMI will do just fine.

Posted on Dec 03, 2010

  • 18 Answers

SOURCE: Subwoofer not working.... JVC surround sound

A connectivity check could provide the solution, notice any wrong wire connections on device or any other devices requiring interconnection. The woofer would perform properly when the connections that provide current for woofing are approapiate

important notes
1. Trace the connection from Recorder or sound output to the woofer device
2. The wiring connections should be sound and video ouput into sound and video output into woofer.
3. The connections if any problems would be located at the stereo recorder or device producing the spund and video. Check the connections of wires on the recorder device ensuring rewiriing
4. finally, adjust the equalisers if any the buttoms could have been disbled by master switch hindering full blaster boost sound.

Posted on Dec 05, 2010

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

First check all the connections. Something as simple as a loose wire will cause your sub to shut down. If all connections are secure, then your coils on the sub itself may have come apart. To test, try pushing in the center of the sub as it is playing. If sound comes out, it's your coils.

Hope this helps.

Dec 23, 2010 | JVC RX-778V

1 Answer

Connecting Powered Subwoofer to a Receiver

you will need a line-level converter to use this subwoofer- it is a rectangular-shaped box with wires coming out on one end and red-and-white RCA plugs one the other. The end with the wires coming out will hook to the receiver, and the other end will need to plug into the sub.

Feb 20, 2009 | JVC Audio & Video Receivers

1 Answer

JVC - Problem connecting a Powered Subwoofer to a Receiver

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

Feb 20, 2009 | Pioneer VSX-D511 Receiver

1 Answer

No sound out of subwoofer

Connection from receiver subwoofer output jack RCA plug male go into your powered subwoofer low level input with other end of cable, then you need to select Subwoofer YES/NO on the JVC receiver speaker setup menu option, select YES if this is a powered subwoofer you are using, should power up the subwoofer, may have to adjust a test tone balance for multi speaker output also, try trimming up on the subwoofer channel to initiate the signal on if the sub has an auto-on feature.

Feb 07, 2009 | JVC RX-5020VBK Receiver

1 Answer

Speaker wire for subwoofer

Usually, a subwoofer will have its own built-in power amplifier. Thus, it will be designed to plug into a standard RCA jack (the type used for DVD players, etc). rather than having wires to connect to a speaker terminal block. Look for a jack on the back of the receiver called "Subwoofer", or simply "SW". If your subwoofer has 2 single wires, it WON'T work with your reveiver's subwoofer output, as this output only carries a line-level signal and is not amplified. You would need a separate power amplifier for this type of SW. If your SW speaker has a DVD-type plug, it should work fine with the receiver's SW output jack.

Jan 02, 2009 | JVC RX-554V Receiver

1 Answer

Home theater reciever

Check the internal fuses havn't burnt out. Remove the main cover. There are 4 glass fuses.

Jan 20, 2008 | JVC RX-ES1SL Receiver

2 Answers


Hello 6423,

The RX-664VBK is capable of having 6 speakers connected to it, 2-front, 1-center, 2-surround and 1-powered subwoofer.
Hope this helps.


Dec 28, 2007 | JVC RX-664V Receiver

1 Answer

Very noisy power transformer

most transformers are bolted but some are just screwed you could probably check to see if teghtening is needed.

Aug 09, 2007 | JVC RX-ES1SL Receiver

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