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Turned on my system, but it was on very loud, it played a few secods then it sounded like it blew, now one speaker isnt doeing anything and the other just makes a thump every few seconds

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You have a serious problem with the amp circuit, you will be best served to not turn it on anymore and take it to a service center where a qualified technician can diagnose the problem with some certainty.

These units are not easy to work on and if not repaired properly they can even cause a fire or electric shock.

I have been repairing these types of units for over 18 years and highly recommend the use of a professional. If it is a good receiver, it will be worth it. You never gave the model number, so I can not just guess at what the problem may be. It can be different for every model. It also take the proper tools to be able to troubleshoot these units.

Posted on Nov 09, 2008

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I have a couple active phobic loud speakers, one is completely out of commission and won't play anything. The other will play sound but only through the tweeter, while the speaker itself does nothing. I...


The tweeter is working but the woofer driver isn't which will change the impedance (ac resistance) of your amplifier output. The other speaker isn't working which will again, change the impedance even more. This could eventually damage the I.C. amps should you apply too much volume to the speakers.
You can turn the volume up to normal listening level and with your finger, slightly press the cone on the woofer in and out a couple of time. Does it engage in sound when you do this? If so, the woofer's coil is damaged and the woofer must be replaced. No sound? Open up the speaker (stereo off) and make sure both wires are fully secured to the woofer. Should they be attached securely, your woofer is probably defective. Should you have a crossover network, you can obtain a good, known working woof and temporarily wire it where the old woofer goes, turn on your stereo (minimal volume) which can verify the network pcb (crossover) is working.

Apr 13, 2011 | Audio Players & Recorders

1 Answer

Im having kenwood home stereo system model no xd-v818 ...in high volume about 80 the sound starts to distoriate and the voice is not clear..i want to kno wether the stereo deck is not able to provide...


Well, here is the situation as I understand it. Here is also some theory to help you out.
Your Receiver or Amplifier has a "scale" showing relative volume. Distortion always increases in speakers and amplifiers when you turn them up. If the sound is getting extremely distorted, the Receiver is attempting to operate above it's maximum output. The scale is an average, but because music recordings are often mastered at different levels, "80" may be too much. When an amplifier section of a receiver is over driven, the distortion (which you observed) will damage or burn out your speakers. Most likely the tweeter (high frequency speaker)
If you back off the volume, or turn down the output of the deck until the sound becomes clear, then that level, IS FULL VOLUME. Based on what you are saying to me, I don't think anything needs service.
There is one other very important thing I should mention to you
. When people use high powered equipment and initially turn up the sound. After a short time, the mind turns it down. What next happens is the reason professional musicians and sound engineers often have permanent hearing loss after a relatively short time.
What happens is that the listener and often the engineer running the sound board at a concert thinks the sound is not loud enough (when the audience is happy with the level) and turns it up. After turning it up, his mind (and the audiences') turns it down and then he thinks it not loud and then again turns it up. And up. And up. The only reason I'm not deaf is that I discovered this when I was building sound systems as a kid. I also studied about it. So please be careful when you play things loud. Permanent hearing loss starts to occur at the very high frequencies and rolls down from there over a period of time. Hearing loss can start to occur in just a few hours.
at 110 decibels. It doesn't come back. If you understand this, you'll keep your hearing.
I hope this helps,
Best Regards,
Mark

Jan 22, 2011 | Audio Players & Recorders

1 Answer

I was listing to my stero and it said protector and I cannot get my big speakers to work, its an older onkyo 857c 120v 60hz 3.6a and there is no reset button


Disconnect the speakers and see what it does. If you were playing it very loud just prior to the failure it possibly overheated or blew up a speaker.

Make/model and any other clues you know would be VERY helpful.

Feb 25, 2010 | Audio Players & Recorders

1 Answer

DE 445 flashes "protect" and sound goes off when loud noises play on DVD


Check your speaker connections at the back of the receiver and at the speakers. You have a short. If you don't see anything obvious, disconnect your speakers at the receiver and play a dvd and turn up the volume. If it stays on, you have a wire or a speaker problem. If it cuts out , you have a DSP chip problem. Reconnect speakers one by one and test each speaker until it cuts off or you have fixed the problem. If you still have issues, post a comment and I can help you some more.

Aug 07, 2009 | Sony STR-DE445 Receiver

2 Answers

Sony STR-SE501 makes popping sound/cuts off


just repaired my se 501 poor solder conections on blue rleays by speaker jacks,also blown center speaker seems there are 2 in it one blew and so did cpacitor running now just hooked up one in center speaker sonds great also stay at 8 ohms setting

Mar 17, 2009 | Sony Audio Players & Recorders

1 Answer

Crackling Speakers


It sounds to me like an impedance mis-matching problem!!!
But it does seem you have done everything correctly so I cant offer any other suggestions - sorry!!!!

Aug 01, 2008 | Pioneer VSX-D407 Receiver

1 Answer

Overloading


hi mate, ive had the same problem before with this amp. i bought it new aout 6 years ago and bought another new one about 1 year ago, new, for £70!

on the first amp there was a problem with the surround sound aspect, it kept overloading when turned up even a fraction, it would tick 4 times and power off. Eventually the surround sound stopped working all together and whenever selected made a VERY VERY loud hissing/crashing noise through all my speakers, blowing one of them, SO BE VERY CAREFULL.

when that happened i assumed was broken so bought another one, and had same overload trouble when i got a new speaker package.

Im pretty dam sure it was the ohmage ratings being different on 2 of the surround sound speakers that srewed the 1st one, so id suggest you check theyre all ok, as well as the speaker watt-age.

what are the specs on all your speakers (ohms and watts RMS)??

do you listen to LOUD music through the 5.1 option??

hope this helps, if all else fails buy a new one mate, theyre so cheap. go into panasonic shops and see if they have any left.

Apr 23, 2008 | Panasonic SA-HE7 Receiver

1 Answer

Poping in speakers


Same issue with my AVR-589...2-15 minutes after sound is playing (via TV or DVD). I checked all wires and speakers. Even reconfigured to audio only (analog) coming in, same issue. Put my old Denon receiver in and the problem disappears...possible overheating issue with this new unit?

Dec 22, 2007 | Denon AVR-3806 Receiver

3 Answers

My jvc rx-6010v is OVERLOADING?


The very FIRST thing to check is to make certain ALL of your speakers have an IMPEDENCE of 8 OHMS. (JVC - and others - say SIX ohms, but 8 is the "standard" you should use.) Virtually all speakers of even modest quality will include this specification on a label on the back of the speaker. You CANNOT run more than (2) TWO speakers with 4 OHMs impedence on ANY amplifier (technical discussion too long!) [NOTE: The internal overload protection system you mention is designed to help prevent permanent damage. However, you cannot re-set these systems yourself. Your dealer or authorized JVC service center must do this. Note, though, that if you have attempted to "cheat" the system several times, damage CAN be done that requires servicing.] But, before you take the unit in for service, there is one more "test": check for shorted and/or mis-connected/disconnected speaker cables/wires. Visually inspect connections at the receiver and speakers first. You might find something obvious! If everything looks okay, then disconnect ALL of the speakers; and reconnect and test them one at a time (at relatively low volume.) For example, reconnect the left front speaker, test the system; THEN add the right front, test the system,and so on, ADDING one more speaker each time - FIRST MAKING SURE EACH OF THEM HAS AN IMPEDENCE OF AT LEAST 8 OHMS! IF there is a short (or bad speaker) this will help isolate it. Hopefully one of these "fixes" will work for you. GOOD LUCK!

Jul 10, 2007 | JVC RX-6010V Receiver

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