Question about Televison & Video
We have cable and we're getting a buzzing noise when we access channels above 23. Some channels are louder than others. I think it might be the IF coil, but I don't know where it is or how to fix it. Can you help.
The "IF coil" is used for all channels, so if channel 5 is clear but 25 is not, the problem is not in the IF. If your IF coil was loose or bad, all channels would drift off and you would have no picture or sound. If you have the TV set to "SAP", some channels would have no sound at all, so I doubt that your settings are wrong. I suspect that the problem is with your cable signal, not your TV.
Posted on Sep 01, 2007
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Posted on Jan 02, 2017
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Buzzing is usally AC line noise leaking into an un-shielded cable somewhere or a floating ground. If the AC plug is reversible, try that. Sometimes the buzz is from an attached device. Make sure all audio cables are plugged in tightly at each end and routed away from or at right angles to any power cords and away from other sources of strong magnetic fields like TV's. I've also seen variable track lights induce noise but it's usually minor.
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