Question about LG 42PC3D 42 in. Plasma Television

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Crackling sound from speakers, intermittent, but seems to start after warming up

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If these speakers are internal to the TV, chances are an internal component is getting noisy -- probably a capacitor -- and will eventually need replacement. That's not something you can do yourself. It's also possible there's a loose connection or a noisy volume control, but that's less likely, and again, would require a qualified serviceman.

If the speakers are external - that is, you've plugged them into the set -- check the connections at the set and at the speaker to make sure they're not corroded and are firmly seated. Sometimes just unplugging and replugging them a couple of times rubs off enough corrosion to solve the problem. Also wiggle the wires close to the connectors on the cables. If that causes the crackle, replace the cables.

Posted on Oct 04, 2010


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I had my speakers 3/4 volume and they were fine. later they just started making a quiet crackling and the bass seems to not be in the sound, so it sounds tinny.

If you feel happy to do it I would take out a driver and try to look at the capacitors on the crossover for any leakage and if you have a multimeter handy check that the ohm's on the bass driver to see if they are within the stated range,a continuity test or a 9v battery across the bass terminals should tell if coil is broken,also is this just on the one speaker or both?

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Either your main pcb has a defective auido circuit or speakers are bad. Doubt it is the speakers or it would do it all the time.

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I have a Marantz 2275 receiver hooked to some JBL speakers. I noticed one of the speakers crackling. I swithched the speaker wires around and now the other speaker crackles so I'm guessing it is

Doesn't sound like it's a speaker - more likely a fried chip or transistor causing harmonic distortion.
It's usually more cost effective to replace modern audio components than to fix them.

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Crackling sound on boot up. goes away after a while

Crackling sounds are from poor connections. As the system warms up, the heat causes expansion and the crackling stops. You should remove and reseat the board in its slot, remove and reseat all connections between the board and the speakers, mics, etc. and restart. The sounds should have stopped - or been reduced considerably.

Please rate this reply - good luck!

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This is an obvious thermal problem. Use circuit cooler to isolate the bad part. It could also be a crack in a circuit board.

Alternate warming with hair dryer and cooling one component at a time while listening for the noise.

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in mu experience its a problem with voltage of your speaker.

did you tried before touching the speakers hard...

because the magnetic in the central of the speaker may damaged.

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I have a home theater setup bought from Best Buy. The receiver is a Denon AVR1908. It seems that after its been on awhile and gets warmed up the sound goes awful. The speakers start crackling and it gets...

if your warrenty is still valid you should return it an get another one, sounds like the reciver has a problem internally witch is bad, it will get so hot that it fries the wires an could damage the parts in side somthing isnt working as should

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Crackling Sound from Speakers

check audio cables wiggle them around if no difference in sound check other inputs if they all crackle call for service it sould be under warranty probably in the speakers or the input board

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