TV Buzzzzzzzz from inverter

[Airhead]

Looking for some help. Recently removed a Panasonic 36" LCD TV from our coach and installed a 40" Samsung LED TV. When running the old TV from the inverter there was never any noise at all. Now with the new LED TV I get a buzzing noise every time it's run using the inverter. Using shore power all is normal. Any one have any idea what might be the cause and/or solution?

[wa8yxm]

The problem here is that the document on the Xantrex X-Power (MSW) inverter support site is titled something like "Things that MIGHT not work well with MSW inverters"

Some combination of Television and inverter play nice together
Some buzz like a hive of bees.
Some have even worse issues.

And you have just proven the first two lines of that.

I would switch to a True Sine inverter if you can.. Else... Well there are things I could try.. but they do require you have some expierence with electronics. (Imprving power supply flitering)

You can try a line filter on the pwer line or of the TV uses a "Brick" instead of taking 120vac direct into the case... You can easily add filtering between the brick and the TV.

[HarleyWJones]

I think we would agree that in a perfect world only true sine wave inverters would exist. After pricing a new Xantrex to replace a perfectly good modified sine wave inverter, I decided to go a different route. (~$1500.00)

You can purchase small sine wave units in the 100-200 watt range reasonably cheaply. (~$150.00) One in that range should power your TV, but of course check your wattage sticker. Most of them are single purpose units that plug into the 12 volt outlet.

I just permanantly mounted one exclusively for the TV. I sometimes plug my cell charger into it because that is another device that doesn't like MSW power.

I e-mailed Winegard about using the power/control unit of our Trav'ler sat dish and they said it is ok with MSW. I was afraid that I might be harming it.

Good luck and Buzzz On!