helperzack
Florida - Tennessee
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Joined: 08/23/2007
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I have a 19" LCD TV and it uses an AD/DC adapter to power.
The output of the adapter is 12V@3A.
Can I just hook this TV straight to my 12v house system? As long as I have polarity correct of course?
Just wanting to check before I do it.
Many thanks and Merry Christmas!
Coachmen Mirada 310DS
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Oasisbob
Portland Oregon 97266
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Joined: 11/18/2001
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Yes, I believe so. We run similar TV through a power converter often when dry camping. The only concern I took note of was the 3 amp part. Seems weak for that size of TV. If it came with the TV or is built in should be fine. Try it. Merry CHRISTmas to you and yours
Oasis Bob
Wonderful wife & 4 Really Fun kids
2008 KIA Sedona 3.8L 24 valve V-6
2001 Bantam Trail Lite B-19
HAPPY TRAILS
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sch911
Rochester Hills, MI
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Joined: 04/13/2003
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Should work. Many do it. RV do tend to have voltage fluctuations which could cause issues but give it a try and see.
Chrysler/Dodge/Ram/Jeep Engineer
2003 Damon Challenger 348 Class A - F53 Triton V10
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301TBS
Ontario, Canada
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Good question. our tv is led and also has voltage adapter. i use an inverter, but 12v operation would be easier.
2012 Crossroads Z1 271B
2009 F150 4x4,4.6,3v. 6spd. 3.73/9.75
Reese dual cam
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enblethen
Moses Lake, WA
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Joined: 01/05/2005
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Yes, no problem. You can plug into the cigarette style receptacles adjacent to most TV locations.
There is normally a fuse in the connector to prevent overloading the circuit from the TV.
Bud
USAF Retired
Suzuki XL7 pushing Pace Arrow
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hershey
Albuquerque,(fulltime) NM, USA
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I run my outside tv exactly like that.
hershey - albuquerque, nm
Someday Finally Got Here
My wife does all the driving - I just get to hold the steering wheel.
Superman was an illegal alien.
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wa8yxm
Wherever I happen to park
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First: House 12 volt and the adapter's 12 volt are not necessarily the same thing. House 12 volt can be as high as 14 volt or more on occasions.
Now, that said. I run both of my 12 volt TV's on house power no problem, but I have heard some folks report: Problems.
I believe, however, it should work,, but if your RV is a motorhome, UNPLUG the tv BEFORE starting the coach, epically if it's on the chassis outlet.
Nothin adds excitment like something that is none of your business
Kenwood TS-2000 housed in a 2005 Damon Intruder 377
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ScottG
Bothell Wa.
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Yes, it will be fine.
Scott, Grace and Wesly
2003 Dodge 3500 4x4, 6 speed Cummins (lightly bombed),
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gijoecam
Midwest
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I would be careful in doing so... First, check the voltage output of the transformer the TV currently uses. The electronics may like the clean 12V signal that the converter outputs, but may not like the 13-15V varying voltage the converter puts out (and the voltage at the jack may vary based on what's running, e.g. lights, fans, furnace, water pump, etc.)
Either way, I would install a voltage-limiter on the line that feeds the TV. Any good electronics supply shop will have appropriate size units rated to do 3A without a problem. If you need a specific one, RS Electronics in Livonia, MI has them on the shelf. I think the one I used (after I cooked a fridge fan in our popup) cost about $7 and IIRC was good to 3A. It required a bit of soldering, but that was no big deal for a handy guy like me.
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Salvo
California
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Plugging TV directly to 12V is an excellent way to save power (if you're boondocking). An inverter is about 80% efficient. The ac to 12V brick that came with the tv is also about 80% efficient. Now if you use an inverter to run the tv, it's only 64% efficient.
I run my 23" LED Vizio directly from 12V. It consumes 1.2A. If I use inverter/brick it consumes 2 A.
My battery voltage goes up to 14.7V (solar). Haven't had any problems with the tv.
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