Question about Philips HTS3450 System

1 Answer

Home theater system

My subwoofer wont turn on for nothing. i cant figur out whats wrong but i did hit the system with my coffee table and i think it pushed the power cable into the speaker further than it is suppose to go. i dont know if its a blown fuse or what. Can some help.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Contributor
  • 20 Answers
Re: home theater system

There are two 470uF/25V capacitors on the power supply board in the sub-woofer that are the cause of buzzing, crackling and then eventually no sound. Go to Radio Shack and buy two Catalog #272-1030 470uF/35V capacitors and change them out. They are in the middle of the Power Supply PCB and are close to the long flat aluminum heatsink. As far as installation instructions go; you have to have some soldering experience, first. You will also need some type of de-soldering device, be it a solder ****** or solder wick to remove the caps. Make note of the polarity before removing. Then it is just a matter of popping the new ones in (they are slightly larger than the originals so they might not go all the way down flush with the PCB) and soldering them back in. Make sure you do not make any solder shorts or your system will be toast! Your unit will be as good as new and will probably last forever now.

Posted on Jul 26, 2008

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Dvd player and cd work but no Radio or tv sound also hooked up a turn table and that wont play. Help

Hi, i think you have to get your unit looked at as it looks like the solder joints are drying up.

Feb 26, 2016 | Sony DAV-HDX266 Theater System

1 Answer

My Boston Acoustics ASW 650 just turned off yesterday and wont turn back on. What could be wrong?

Check for the wires connections on all the terminals.
Else it is a minor problem due to power fluctuations.
Take it to a nearby technician.

Sep 22, 2014 | Boston Acoustics ASW650 10in 650 Watt A...

1 Answer

Protect subwoofer showing on power amplifier

Check your owner's manual for a Factory Reset, or Return to Default. Try that first. If it still doesn't work, try disconnecting the sub completely, and see it that resolves the issue.

Feb 03, 2014 | Sony MUTEKI HTDDW1600 Theater System

1 Answer

I have a subwoofer JVC TH-C5 it dosen't turn on i oready change all fuse from the subwoofer what else you think is the problem

I would first check the wiring from the amplifier to the head unit (stereo Deck). If that connection is loose or not there then the sub-woofer will not turn on.

Mar 13, 2013 | Home Theater Systems

2 Answers

I have a pioneer home theater HTZ585 DVD system. Since yesterday, i get 'SUB COM' message displayed (blinking) and nothing seems to work anymore. Any suggestions?

I can't find that message in the manual but I would guess it's trying to tell you something is wrong going out to the subwoofer. Trace the wiring. If you don't see anything wrong, disconnect the sub and see if the message disappears or changes.

Apr 30, 2011 | Pioneer 740 DV Home Theater System System

1 Answer

RCA RT2870 home theater system 'welcome' screen

Well, I just returned the unit. RCA replied with the following solution:
Let the unit sit with the AC power cord out of the wall for a couple of
hours. Then hit the power button 10-15 times (with the AC power cord still
out of the wall socket!) and then try again.

Oct 02, 2009 | RCA RT2870 Theater System

1 Answer

Home theater system

A broken connector or power cable is the problem....accordianman

Sep 22, 2007 | Philips HTS3400/37 System

Not finding what you are looking for?
Philips HTS3450 System Logo

153 people viewed this question

Ask a Question

Usually answered in minutes!

Top Philips Home Theater Systems Experts

Gyula Lacz

Level 3 Expert

482 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers


Level 3 Expert

94271 Answers

Are you a Philips Home Theater System Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides