Question about Samsung HT-AS720ST Theater System

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Static coming from the front right speaker. Sound now fades in and out, unit is only 2 years old.

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I had this same issue about a year after I bought the product. Sent it back under warranty and about a year later, I have the exact same issue again. Never buying samsung receivers again.

Posted on Nov 07, 2010

  • krdavis28 Dec 16, 2010

    I had the same problem, had the unit repaired and then again after they repaired the unit a year ago. I called support and explained the issue and they agreed to replace the unit after a little convincing on my part. They said at first that the unit was out of warranty but then a supervisor agreed to replace the unit at no charge, other than shipping the unit to Samsung. Give it a try because I think they must know that this is a problem.

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Posted on Jan 02, 2017

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Left speaker in my 1998 chevy s10 fades out then dies


What have you tried?
Is this an aftermarket sound system?
It could be a fault in the head unit, the cables or the speaker itself.

Assuming that its and aftermarket head unit using original wires this is what I would do:

Remove the head unit to gain access the wiring behind.
Most units have the wiring colour coded and a generally in pairs for +ve and -ve, some even have them label LR (Left Rear) RR (Right Rear) LF (Left Front) RF (Right Front).

The wires are commonly joined to the existing speaker wires by insulated electrical "connectors" that simply pull apart, though only pull on the connector NOT the wire.

Half-way jobs are just the bared wired "twisted" around the joining wire and wrapped in electrical tape.

Ensure all the connectors are still in tact and

Test after removing each pair of speaker wire to which speaker is disconnected.
When you determine which wire is for which, switch the non-working left speaker over with a working one and test to see if the speaker still fades.

1. If it does not fade then your problem is the head unit - I would replace it.
2. If it does then the problem is in the speaker or the wiring.

Remove the speaker and swap with one of your working speakers.

A. If it still fades then the problem is in your wiring and you will need to run new wires.
B. If it does not fade then the problem is simply your speaker.

Hope that helps.

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When I hook up my aftermarket stereo in my 2004 trailblazer the rear speakers have no sound coming out


First thing is to go to autozone dot come and make a free account. Then put in the make model and year and then look at the free repair guides for the wire diagram to be sure that you have the right wires in the right slots. Then check the fade control on the head to be sure that it is not set to the front speakers.

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Go though your menu on the reciever, Look for the speaker functions for your front end rear speakers ,It was probably turned off. Was it working before you got it from your friend,

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I installed a new stereo in my car. I have no amp, just stereo and speakers. My rear speakers worked before I installed the new radio and now theyre not working. I wired and re-wired, making sure it was...


I am hoping that you used a wiring harness to hook them up. If so, check some of the simple stuff we forget. Did you check the fade control on the unit. This is the front to rear. Also, is your unit equiped with 4 speaker output. There are still some radios out there that only have 2 channels out. Hope this helps

Aug 19, 2011 | Car Audio & Video

1 Answer

Right speaker produces fade sound not a clear sound, left has good sound


try swapping the speakers around if the problem still persists either the speaker is faulty or
the speakers plug/outlet is usually at the back of the computer you will have to open up the computer to check the lead attached to the rear of the input plug make sure the connection is good
or you might have to clean the dust from your computer dust causes static which causes your computer to overheat and all sorts of problems
be sure to wear an anti static earth strap before touching anything inside your computer try cleaning your computer of dust using a fine air blower from a compressor making VERY sure that there is no MOISTURE in the air line specifically around the CPU central processing unit and your SOUND CARD dust causes static to build up in a computer causing it to overheat any many other problems
hope this helps you

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no its not to new its starting to have problems.JVCs arent known to llast maybe 2 years get a good pioneer youll be happier.

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How does it sound using external speakers? What is your signal source...broadcast, cable, satellite? Is the static continuous or does it fade in and out with voices (lips moving) and / or sound effects / music?

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Front speakers only produce static


The amps are on each of the speakers. There is a place in Florida that will fix them for around $85.00 each plus shipping. I put a sony unit in mine and replaced all of the speakers with the kicker ds series for less than fixing the bose system.

May 29, 2009 | 1991 Cadillac Seville

1 Answer

Volume fade


Check to be sure there are no speaker wires touching ground, and that the wires are connected in phase to the head unit.
Front Speakers 5 1/4" Doors Left Front (+) Green Left Front (-) Black/White Right Front (+) White/Red Right Front (-) Black/White Rear Speakers 6" x 9" Rear Deck Left Rear (+) Pink/Red Left Rear (-) Pink/Blue Right Rear (+) Pink/Light Blue Right Rear (-) Green/Red

The symptoms you are relaying definately sound like an internal amplifier problem. It is fading in and out for a reason - usually due to heat.

Have you had the radio bench tested (seperate from the car) to eliminate the car as being the culprit?

Since the radio was run with damaged speakers originally, the output or amplifier power supply on the amplifier may be bad.

As an alternative to repairing, I would suggest investing in a small 2 channel amplifier to power the speakers.

The radios claim 50W per channel, but in reality give 12-15W RMS power.

A dedicated amplifier with built in crossovers and gain adjustments will prolong the life of your speakers and add to the tonal qualities of your new speakers. Instead of turning up the volume on the head Unit, and sending out a distorted signal that will blow your speakers, an amplifier will give more CLEAN power to them, so it will be louder at a lower volume setting.

This will bypass the internal amplifier on the radio, and send a Low Level signal ONLY thru a set of RCA cables.

Good Luck!!

Jan 10, 2009 | Car Audio & Video

1 Answer

Static and crackling sounds


Sorry to burst your bubble my freind but things do wear out as you had plenty of life out of this unit.. Your problem is a transistor or a driver IC is breaking down under a load and heat and will get worse to where you wont be able to use the unit.. It will probable cost you in a range of 200 bucks or .more!as there is no quick fix for a solid state unit that has no user serviceable parts inside. Its just not replacing the bad part , its the hooking up to the load resistors then seeing that several other parts are not up par and having to start rebuilding the amp statges of your reciver.. If its more then 8 years old Time to landfill it and get a new one .. Put it to rest. It dosent owe you anything as its been loyal to you all these years!! Good Luck

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