Occasional popping

[moggi1964]

I have noticed that every now and then I get a single 'popping' sound through the speakers and it doesn't seem to matter if I am watching a DVD or live TV.

The connections all seem tight and the wires all are BJC ones so are good quality.

Any suggestions how I might track down the cause?

TV is a Olevia 32" being fed with a HDMI cable from the Yamaha which converts to a DVI/HTPC cable at the TV (the Olevia is an older non-HDMI model). FIOS signal comes in through dual card Tivo HD and DVD's are played on Onkyo 971H.

Thanks.

 

[TLS Guy]

I have noticed that every now and then I get a single 'popping' sound through the speakers and it doesn't seem to matter if I am watching a DVD or live TV.

The connections all seem tight and the wires all are BJC ones so are good quality.

Any suggestions how I might track down the cause?

TV is a Olevia 32" being fed with a HDMI cable from the Yamaha which converts to a DVI/HTPC cable at the TV (the Olevia is an older non-HDMI model). FIOS signal comes in through dual card Tivo HD and DVD's are played on Onkyo 971H.

Thanks.

You probably have a repair bill in your future.

You have told us it is not the source, so the problem almost certainly resided in your receiver. Is the pop in all speakers, or just one? If it is one, you have a suspect amp, if on all it most likely in the power supply, but just might be in the processor.

This symptom is a common precursor to failure. Causes are cap breaking down and arcing across the electrolytic. My engineer son who designs semiconductors tells me semiconductors commonly fail, by arcing through the semiconductor and making holes. When enough holes have been punched you have failure.

The problem is that until the popping becomes very frequent, or there is total failure of the component causing the problem, no service tech will find it.

 

[moggi1964]

The receiver is only a few weeks old so it would have to be a manufacturing failre rather than a 'getting tired' failure.

I will contact the retailer and see what they suggest.

Thanks.

 

[TLS Guy]

The receiver is only a few weeks old so it would have to be a manufacturing failre rather than a 'getting tired' failure.

I will contact the retailer and see what they suggest.

Thanks.

Since it is new, it is most likely a semiconductor failure. One of the most frequent periods for semiconductor failure, is when the devices are new. This is because traces of impurities in the mix of the semiconductor material, cause premature breakdown and failure. Caps usually give trouble when they are older, but you can still get a bad one now and again.

 

[moggi1964]

Seems to have disappeared, haven't heard it since a few days after posting above.

Thought I would update you all.

 

[croseiv]

Every once in a while I'll get a popping with HD channels, but I have figured out that it is related to the cable box. I just unplug it and allow it to reboot, and the popping usually goes away, or moves to another channel.

 

[unreal.freak]

Do you have a powered Sub connected to the unit?
I once had a popping noise very similar to the one you describe. It was hard to discern where it was comming from. My sub quit and i took it to the repair shop and they found a faulty set of contacts in the sub amp. It is one of those subs that turn on and of with the signal from the reciever or the lack of a signal from the reciever. It would pop every time the sub would turn off.
After they replaced the points/contacts it went away for a couple of years then came back.

Hope everything works out for ya man.

Peace,
Tommy