Question about JVC TH-C5 System

Open Question

No Power to Subwoofer (SP-PWC5)

One day the light went out on the subwoofer and never came back on. We have electrical storms from time to time so I figured I blew a fuse. I took off the back plate and tested all 3 fuses and they tested fine. I then read that a bad cable from the center unit to the sub may cause the problem so I ordered a new cable and it still didn't come on. I guess I may have a blown transformer because I don't get 12v DC on the cable from the transformer back to the board (not sure if I tested it right since it has 2 reds 2 blues and a black). Any ideas?

Posted by on

  • 3 more comments 
  • Anonymous Sep 10, 2008

    no power to subwoofer

  • badavis Sep 15, 2008

    If you ohm out the primary side of the ower transformer you will notice you have an open. This is do to the internal 5a fuse blowing. There is nothing you can do other than relce the QQT0482-001 transformer if you can find one.

  • shiel85778 Nov 11, 2008

    While rearanging the placement of my th c5 powered sub by scooting it across the carpet, I recall a sudden and loud pop and saw a spark like flash for an instant. Now their is no power to the woofer and no green light, however, the center channel works; but no sound is possible.

    If this was caused by a power surge, how can I fix?

    Also, I found three fuses inside the sub compartment that looked good but was wandering a good rule of thumb when visually inspecting the fuses, and how can I see whether they are still good?

  • inthehood47 Dec 20, 2008


  • Anonymous Jan 24, 2009

    Yes. Just bought a new DinPin wire, and when I turn the reciever on the sub clicks as if attempting to turn on, then clicks again as if turning off. Light on sub never turns this a problem with a fuse in the sub or reciever, and if so, should I just buy a new fuse or a whole new sub/reciever??? So many questions, so little time.



6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

  • 203 Answers

SOURCE: subwoofer not powering up

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).

Posted on Jun 15, 2007


SOURCE: jvc th m603 center unit - powered subwoofer

Yes go to It will cost you $20.00

Posted on Mar 31, 2008

  • 1689 Answers

SOURCE: SP-PWM505 subwoofer does not stay on

It is possible that the power supply, and or the internal amplifier has some components that have failed. The unit will have to be serviced.

Get in touch with JVC to find out if your unit is still under warranty, and to find out who is their authorised service rep for your area.

Jerry G.

Posted on May 15, 2008

  • 33 Answers

SOURCE: sub won't stay powered up

well if your getting sound out of your surround speakers then the sub is busted, if your getting no sound at all then your speaker input's are either bad or out... i would test the speaker inputs...

Posted on Aug 09, 2008

  • 59 Answers

SOURCE: Subwoofer powers up and clicks off after 2 seconds, no sound, ever.

if you know what a transformer is, and if you have a multimeter, i suggest you to go ahead andcheck the transformer,

Posted on Nov 05, 2008

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

How can I hook up BIC F12 subwoofer to Onkyo TX-DS838 receiver? Will the receiver power the subwoofer and other speakers?

Get a RCA cable and connect from your amp where it said Sub Woofer in the Pre Out box in the back of the amplifier top left hand side and take it to the "Sub In" located in the back of your Sub woofer bottom right hand (White round connector).
Good Luck!

Aug 06, 2014 | Onkyo TX-DS838 Receiver

1 Answer

The subwoofer SP-PWM505 won't turn on.

Make sure its not set to Auto. Also check for a fuse in the back. Unplug the amp side and with the sub plugged in touch the RCA. You should hear noise from sub. Try this last. Some may say this is not good for the sub. Im in the business and never have seen it cause a problem

Jun 18, 2013 | JVC SP-PW100 Subwoofer

1 Answer

Aperion bravus 10d subwoofer no sound

The amp inside the sub has failed. Basically a sub is a mono power amp with a speaker. Though it seems to be getting power it could be that the main semiconductor that does all the work has gone open circuit. If it went short-circuit it would have killed the fuse and power.

Nov 20, 2017 | Aperion Audio Players & Recorders

1 Answer

I have a jvc sp-pw50 Subwoofer and i want to know if you can buy an adapter for the input so i can hook it up to my kenwood amp? my amp does have a regular audio jack

That would require you to disassemble the subwoofer cabinet and disconnect the the supplied amplifier.
Connecting this unit to a different amplifier would provide no benefit to you unless the on-board amplifier became damaged.

Nov 16, 2011 | JVC SP-PW100 Subwoofer

1 Answer sp-pwc5 the power wont come on at all how cam I fix it

sounds like the power supply you will need to change it or have it changed

Mar 18, 2010 | JVC SP-PW100 Subwoofer

2 Answers

Where can i find an sp-pwc5 cable? cant really find it on the internet

Hey bro, if your looking for the "system cord" that says on the back of the unit TO: SP-PWC5. Look no further your part number is 6200044901 just type this into google or hand it over to you local electronics stores and they might be ablet order it for you! God Bless!!

Mar 07, 2010 | JVC TH-C5 System

1 Answer

Came home after a storm and smelled electric burning and heard a hum from the subwoofer. now i wonder what the problem is and is it worth getting fixed.

I had almost the same problem. I was Playing music and my speakers kept on shorting out, i smelled burning wires and i look in back of my subwoofers and there melted. i just simply replaced the wires exept with a thicker 14 Gauge wire. But i dont know if your subwoofer is damaged or not. but i would try changing the wires.

Oct 05, 2009 | Boston Acoustics PV500 Subwoofer

1 Answer

Klipsch Subwoofer sub10 power supply problem in India

as we know in India power goes on and out all day. so avoid using any extensions

Mar 18, 2017 | Audio Players & Recorders

1 Answer


MOst of the time it is the jack that the cable plugs into that has the problem. .
Also the jack is not broken but HAS broken the solder connection TO the jack.
If you know someone who can safely take it apart and solder, let them try.

Feb 07, 2008 | JVC TH-M505 System

4 Answers

Sony AMP/Subwoofer Problem

It is probably the tweeter, inside the Sub. it's the small ceramic disk between the cone magnet, and the speaker. id this thing is cracked or broken, this will cause the problem. if this is not it, then it is a problem with something in the wiring, and the only way to rectify it is to buy a new sub. Sorry due :(

Jan 26, 2008 | Audio Players & Recorders

Not finding what you are looking for?
JVC TH-C5 System Logo

Related Topics:

1,513 people viewed this question

Ask a Question

Usually answered in minutes!

Top JVC Audio Players & Recorders Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

The Knight
The Knight

Level 3 Expert

75157 Answers


Level 3 Expert

5342 Answers

Are you a JVC Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides