Question about JVC TH-M505 System

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Subwoofer not working

I'm getting no sound out of my subwoofer or speakers. The unit itself is working - it plays video, but no sound.

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Re: Subwoofer not working


cut n paste the link for the manual

Are headphones plugged into it?

Is the headphone jack damaged?
Are there speaker fuses on this model? If so, check them.

Posted on Feb 28, 2008

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Rca rtd 6151

You may have to connect the subwoofer output to a powered subwoofer.

Dec 01, 2013 | Home Theater Systems

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Where do the cables go for pic and sound

You can find the manual here if you need a copy.

This system was sold with speakers and connecting cables. One cable connects from the main unit to the subwoofer. The rest of the speakers supplied with the system plug into the subwoofer with their special connecting cables. If you don't have the subwoofer and satellite speakers along with the cables, you can't get sound out of this system. There is no built-in amplifier and no way to connect speakers otherwise.

The video connection to your monitor or TV is from the rear panel on the main unit. You can use an s-video cable, composite video (a single cable with RCA plugs) or component video (3 RCA cables), depending on the inputs supplied on the TV. Component video gives best performance if the TV supports it.

Jun 21, 2011 | Philips HTS3440/37 System

1 Answer

Subwoofer output no sound...

Check to see if it is properly hooked up to the player, and if it is, then either the amplifier's LFE(Low Frequency Emitter/Subwoofer) channel has failed, or the CPU is not beginning to forward frequencies 200Hz and below to the subwoofer. At 200Hz, the subwoofer adds to the satellite speakers, an then at 110Hz and below, only the subwoofer is playing.

Feb 28, 2010 | Samsung HT-DS630T System

1 Answer

I have a subwoofer with standard speaker wire connection, how to I attach to a receiver with a subwoofer cable?

The Subwoofer is Likely Passive....meaning no amplifier is within the enclosure itself....the incompatible connectors mean you cannot connect the subwoofer itself to your surround sound system.

look for a Suitable stand-alone (1 Channel) Amplifer with sufficent power.....connect the RCA Imputs (subwoofer cable) to the Recievers RCA subwoofer output....then connect the amplifier's output to the the wire going into the subwoofer enclosure....if there is a plastic connector simply cut it off and strip the wires down a sufficent lenght....then secure the wires to the output of the amplifier.

if you do this make sure you know the ohm rating of the subwoofer and the minimum ohm rating of the amplifier your using.

Nov 24, 2009 | Sony BRAVIA DAV-HDX267W Theater System...

2 Answers

Broken bass unit

(Please read the whole thing before opening anything)
Loose connections inside either the receiver or the subwoofer. Open the subwoofer case (the screen should pop off, if there is no screen there is usually some hidden screws somewhere) and see if there are any wires that have been separated. The problem with subwoofers (more common in car audio) is that they will vibrate so much that when you have something meant to have a lot of bass without the subwoofer and then you add the subwoofer to it, it's overpowering it which causes it to vibrate harder; seperating the cord that attaches the fabric of the speaker itself to the metal harness.
You can do one of 2 things:
1) Souder the wires back together using a heat sink.
2) Get allagator clips, cut them down pretty short and just extend the length of the wires a little bit giving it more bouncing room. Caution with this because if you dont cover the clips and they touch the metal frame, you will have no sound. Electric tape them once they're on.
If nothing is seperated, check the input jacks from the speaker box frame to the speaker itself. Loose connections are common for the crimp on kind.
Also a good idea: if you really (I mean really) want bass and you have no neighbors within a 1/4 mile radius of your house, have a friend who is getting rid of his car woofers to hook you up an AC outlet from the power source, and then use the red and white cables going into the amp to come from your receiver. I've seen this and it's great when watching a movie or playing games. Surrounding people hate it. (Wonder why?)

Jun 13, 2009 | Alesis M1-Active-MK2 Powered Studio...

1 Answer

Sound from 3 channels only

Sometimes what happens is that people r just confused with all wirings.Considering that you have connected the speakers correctly...Now according to u the center speaker is not working
  1. If u have a jack attached at the end of the speakers then try connecting the center speaker jack into the Right front/Right Rear/Left Rear socket at the back of the reciever.Just to make sure that your speakers r fine.
  2. Secondly play an audio cd first,sumtimes a video DVD not being 5.1 channel one confuses a lot.
  3. Assuming that you have checked the center speaker,like I asked u too,Connect it into its proper socket or better connect all the speakers.
  4. Now with the remote you check the predefined equalizer in it n keep changing that [pop,rock,jazz etc] or you might even want it to change it to 5.1 from a 3channel or 2channel Stereo.Everytime you change it listen to every speaker.
  5. Also check that you have increased all the speakers volume one-by-one.
  6. Disconnect any headphones attached.
  7. Switch on the selected source or select another source.
For further details u can check the manual.
The VGA cable of the monitor will work fine.

Jun 03, 2009 | Philips HTS3450 System

1 Answer


circular calem is probibly stuck

Oct 28, 2007 | Yamaha YHT-941 System

2 Answers

Can't get sound from the wireless subwoofer

There are 2 things you can try, first ensure that the digital transmitter is fully inserted into the slot of the main unit. Secondly do you have any other wireless devices near such as cordless phone or wireless network equipment? See page 5 of the installation manual as per this picture.......

Jul 25, 2007 | Panasonic SC-PT1050 System

1 Answer


Sounds like your original and this sub have bad amps. The amp for the sub is not the same as the amp for the other speakers. The old unit has a dead amp and this new one is on the way out. (Pulling too much current on high bass)

Mar 30, 2007 | JVC TH-M505 System

1 Answer

SUBWOOFER WON'T POWER ON (Grounding out???)

Check your cable that runs between the main unit and sub for bent pins. If they look fine there may be a short in the sub itself that is causing it to go in to shutdown.

Oct 21, 2006 | JVC TH-M505 System

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