Forum Discussion
72cougarxr7
Sep 13, 2017Explorer
mike-s wrote:Ralph Cramden wrote:Source? Most electronics these days run at various voltages - 1.8 and 3.3 volt are common these days, although there's still some 5 V around (e.g. USB). Even if 12 V were used (backlight?), there's no real reason for a TV power supply to convert first to 12 V, and then again to the voltages actually needed. It would generate them separately. Can you give an examples of current TVs which do an AC->12VDC->??? power distribution?
Probably, most LCD TVs or monitors are 12VDC internally.
And, of course, in the context of RVs, "12 V" really means more like "11-15 volts."
12v inputs are quite common on tv's.
I bought this one a couple years ago to use in my RV.
https://www.walmart.com/ip/Sceptre-19-Class-HD-LED-TV-720p-60Hz-with-Built-in-DVD-Player-E195BD-S/16935878
Came with a 110 cord with a power "brick", where it plugs into the tv it even says 12v DC.
I made a cord to plug it into my trailers 12v power outlet so I can watch tv off the battery without running my genny.
Now many tv's do not use a brick, and have an internal power supply, so those would not work. If you go to a store that has display models out, just look for ones with the power supply "brick" on the cord, and chances are it is 12v input.
Saved me a ton of money over buying a specific "rv" tv!
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