Question about Samsung HT-DB390 System

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Sound problems This system had the same problem some others were having. It would say protection when powered on and then turn off. There was a fix on here for a reset that got rid of that problem but now I don't get any sound just hiss from the speakers. The DVD still plays but the audio does not. I get a lot of static and when you do a speaker test the tones are just static and they dont come from the speakers they should.

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Re: Sound problems

First, wiggle the input for the speakers around to make the connection is in place. That can sometimes give you a hiss if the signal isnt connecting. If that doesnt work, then check the DVD eye to make sure its working properly. Try to unplug it, then plug it back into the wall in order to fix the issues. If the product is still under warranty contact the manufacturer immediately to discuss this. If not, check to see if the manufacturer has had any recalls on parts or have firmware upgrades. that can sometimes resolve those issues. Good luck, keep us posted!

Posted on Sep 17, 2007

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When I turn my dvd player on, the volume will lower on its own to almost mute. It is hit or miss weather or not the unit will turn off on its own saying protect. All connections are good. Inside is clean....

When you've got good volume, try unplugging the speakers (only for a very short time) to see if that whining noise is still there or if it's stopped. We're trying to see if the whining is related to the low volume and "protect" or if it's only coincidental.

Try unplugging all the cables (except the power cord). Turn the player on & off several times & see if that whining noise acts the same. Also see if the player goes into "protect". What we're trying to do here is see if it NEVER goes into "protect" with the cables unplugged.

Last... try to get it to start & run without going into "protect", with all the cables unplugged (except power). Plug the cables in, one at a time, and see if plugging one of the cables in forces it into "protect". If so, there's something wrong with that cable or whatever's on the other end of that cable. Unplug it again & restart the player - no "protect"? Wait a little while, plug the cable in. "Protect"? Check the other end of that cable.

If it goes into "protect" with nothing plugged in except the power, then the player is probably a write-off, ready to be replaced (it's not very often that DVD players are worth repairing these days).

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Are you saying the unit dies in 30 seconds at home but it works fine at Radio Shack?

Maybe you need to assess your power sourcing or any other condition that's unique.

Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Eure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

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Protected in short means that the amp is no longer powering the speakers due to one of the following: 1. Volume is up too loud 2. Equipment Failure 3. Dirty power
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