Question about Philips HTS3450 System

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Fuse keeps blowing in the subwoofer on my Philips hts-3450

I replaced the capacitors to the 470 uf 35v like has been suggested. Yet when I plug in the woofer the fuse still blows out right away. Any other suggestion in what to do would be greatly appreciated.

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Replace the capacitors with ones of the correct v. Download latest manual from Philips website to verify if the capacity value is not a typing error.

Posted on Jan 29, 2009

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Posted on Jan 02, 2017

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1 Answer

Repair Philips HTS 3450


What exactly is the issue? no deep bass? pffft instead of woof?! low volume?

Info needed,

Sep 12, 2017 | Philips HTS3450 System

1 Answer

Why won't my TV sound go through the Hts 3450?


Wide open one here. Is your tv coming in direct from the wall or do you have a cable/digital box that you need to get the signal from? If you have a box then make sure you are plugged into the audio out on the box and on the HTS you are on the audio in. There will be a left and right. If you have the sound to your tv then you can plug into the audio out on your tv and again plug into your audio in on your box. If your tv has an option for external speakers then you need to make that adjustment on the audio menu on your tv. Also make sure that the proper channel is selected on your HTS and that your audio output matches your selection. Hope this helps but I will keep an eye out for further posts.

Nov 12, 2012 | Philips HTS3450 System

1 Answer

My 46" lcd keeps shutting


You have popped capacitors on your power supply.


Here is what you need to look for:

drewpalmer04_60.jpg

Once you locate the problem capacitors you will need to replace with the SAME uF value and HIGHER voltage value. EX: 1000uF 10v ---->1000uF 35v


Thank you and best of luck!
Please rate!

Apr 15, 2011 | Philips Televison & Video

2 Answers

Hi. We're having power outages in TX right now. When power in house came back on, our Philips Home Theatre System (HTS 3544) seems to have lost all its power. We've plugged and unplugged the unit, and...


These are prone to power spikes...and for that reason have a fuse located on the power supply board...known as fast blow fuses...which are glass and easy to see if they have blown..sometimes all you need to do is replace the fuse on the rear of the unit if you can locate a fuse cap...just unscrew and replace....Always unplug televisions and audio equipment and routers during power outages and thunderstorms as a preventative to blowing psu panels on electrical devices connection to your house mains for this reason .

Feb 05, 2018 | Philips HTS3544/37 Theater System

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Had the blank screen problem. Now it won't work above 800x600 res


When I replace caps in this model, I replaced all the caps (4 (1000uF by the heat sink, 1 (470uF) by the inverter transformer) for the 5v and the 12v since you cannot 100% relying on just by looking bulging tops. I am not sure why your has 3-470uf. See my example here: http://s807.photobucket.com/albums/yy352/budm/Princeton%20VL2018W/

Jan 23, 2010 | Princeton Digital VL2018W Monitor

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

Philips HTS 3450 sound


I just blew my subwoofer up. The fuse was blown so I rigged it with something to act as a fuse, and the thing spewd out a volcano of smoke! Oh well..

Sep 21, 2008 | Philips HTS3450 System

1 Answer

HTS 3450 subwoffer off


I have a similar problem. I inspected the power board and found IC901 burned completely. I cannot find out the part number and have tried to get a reply from phillips but have not heard back from them. Anyone have a schematic or can give me the part # of IC901?

Sep 06, 2008 | Philips HTS3450 System

1 Answer

Email id


As I found somewhere on the internet; 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. Make sure you match the polarity properly when replacing. Your unit will be as good as new and will proibably last forever now.

Jun 12, 2008 | Philips HTS3450 System

1 Answer

Jvc will not power up


Not, just install soldering stations on the terminal capacitor ( bottom) and pull up slow, clean solder and put it back new one. See position ( -- And + )

C926 and C928 1000uf 35v Common problems.
Some time D905 shorted
Replaced C911 470 uf 35V

Ready!!!

May 10, 2008 | Televison & Video

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