Question about Durabrand 5.1 Surround Sound Computer Speakers

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DURABRAND HT 3916 Surround Sound System - Fuses keep blowing immediately!!!!!

In short. My folks have had this system for aobut 2 years. I helped them install it. Worked fin up til' about 2 weeks ago. The power went out in the house for aobut a half hour. The power came on, the system started to hum. Rather loudly, then nothing. No standby light, no nothing. So I went to Radio Shack, bought (4) 250V 1.6 Amp Fuses tried all 4 and when the rocker switch was turned on to supply power, it clicked, hummed and then nothing. ALL 4 FUSES BLEW. No one seems to have answers on-line. Even up here IC's incoming, outgoing, etc. Not sure what that means. But is there another fuse you need. SOME B.S. proprietary fuse? I am just wanting to fix it for my folks! HEEEEEEEEEEEEEEEEELLLLLLLLLLLLP!

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It is most likely on of the IC's is shorted,and is letting A/C voltage reach the speakers.

Posted on Jan 28, 2010

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First question after a power cut, followed by a device failure is, do you have a surge supressor connected to it?

The reason I say this, is because, most devices, especially the cheeper ones have poor supression, to reduce costs.

During a power cut the voltage will fall rapidly, forcing the power supply to draw more current to deliver the power required.

When the power is re-connected to a large area, i.e. a power cut, the power draw on the network will be quite large, so the network pumps more power in to compensate. This then leads to an over-voltage to the device, which is the usual killer of devices after a power cut.

A good typical example of this, is a computer, when it suddenly losses power. It usually damages the HDD.

In short, I would suppect that one of the I.C. (Integrated circuits, the little black things) has being damaged due to a power surge, as they are very sensitive to power surges.


Posted on Dec 27, 2008

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I exactly dont know whats wrong but if its humming, then its not the problem with any of the fuses.

Posted on Nov 14, 2008

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