Question about Philips HTS3450 System

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No sound after power surge

I have bought two of these systems and neither one of them have lasted more than a year...we get a power surge and yes we do have a very expensive surge protector hooked up yet the system will not come back on even after we have unplugged it for 24 hours...if you have any thoughts please let me know biggunz422002@yahoo.com

I have the same problem as above.

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This solution was posted in another users topic about the same issue and it works.

The circuit boards inside the subwoofer contain the capacitors that need to be fixed.

You need to purchase the 470uf 35v replacement capacitors qty(2), which you can do at Radio Shack-catalog #272-1030 $1.33

You also need a soldering kit, Radio Shack also sells these for 7 bucks (i recommend the 5 piece kit).

After you get the goods; remove the back plate of the subwoofer and disconnect the power wires, unscrew the circuit boards and look at the pic below to find the 2 capacitors we are replacing:

No sound after power surge - 0ccab8c.jpg

Check youtube for quick and simple instructional videos for removing old soldering on circuit boards and applying new solder.

*IMPORTANT* Make sure the black stripe line on the capacitor matches up with the shaded portion of the circle where you place the capacitor.

Once you are done reconnect everything and do a test to check if it is successful, it should be; it worked for me and i never used a solder stick in my life.

Posted on Sep 07, 2009

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Try plugging it into a regular wall socket. If this produces no results, you will need ot send this unit in to the manufacture for a complete mother board and power sector transplant. most surge hits will fry the entire board Assembly and, some are isolated in the power sectors.

This repair can only be preformed by a phillips tech. the parts you will need are only available to phillips manufacturing tech.

Posted on Jun 03, 2009

  • M lopez
    M lopez Jul 23, 2014

    Hello friends, I have an amp with the same model, the problem is that you burn the IC902 and I can not see the code for this, anyone know

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Hello friends, I have an amp with the same model, the problem is that you burn the IC902 and I can not see the code for this, anyone know

No sound after power surge - 9b1ac967-0eb5-47db-8ffc-7079f7e73d42.jpg

Posted on Jul 23, 2014

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