12v telly wires question.

i've got a tv that runs a built into plug transformer i would like to cut the plug off and put a cigarette lighter socket on it, which wire is the live side? the striped or plain? if you relate to the plug providing they don't swap over inside then the striped is going to the neutral side but just want a bit of a confirmation.

 

Hard to say unless you slice the plug up with a knife and check what goes to what. The centre conductor is +ve. Easy enough to check if you've got a meter, tho'

 

striped as a rule I would say, well that's how I always use twin core.

 

no need to cut brick open just spilt one outer casing and test with test screwdriver for positive flow. simples.

 

I'd just go for it - you can only be wrong once.

 

...and TVs are easy to replace

 

Is this a new purchase Mr Roo or an existing TV you already have? I've been on the look out for a 12v one for a while & only found the ones with external power bricks like this to run off 24v so far!

As for checking which wire is which the transformer indicates the inner pin of the plug that goes into your telly is the positive, have you got a multimeter? If you have then run a continuity test by putting one end of the multimeter thinging on the centre pin & then test each of the wires where you have cut through, one will show a reading or will omit a sound from the meter, that will be your positive... Sounds simple doesn't it

 

@Robo they are from argos 19 inch with dvd £99
as for the 12v thing on the plug i get the continuity thing good call cheers.

 

http://www.argos.co.uk/static/Product/partNumber/1223336.htm

 

Excellent find, thanks for the heads up

 

even better for free

 

Not the brick, the plug.

 

sorry but is not a built into plug transformer not also known as a brick (power brick not
a t25). or have I totally misread once again?

 

I meant cut the plug on the end of the cable up to see how it's wired, not the transformer body itself. You know what the connections are there, as it's printed on the top

 

But he wants the plug to attach to a ciggy socket.
Cut wires, volt meter on the transformer wires.

 

Maplins do various size 12v TVs too and they come with 240 and 12 volt leads, digi and analogue including aerial

Had one for a few years and still works well

 

What aerial setup you using fella? TVs a good find

 

Yes free is much better

 

im just using a mag mount stubby digital aerial that came with the maplins unit, it works for both analogue and digital, or did, sometimes works better laid on its side, as im told, maybe BS, that some areas have horizontal signal??? but who cares on the truth, as laying the aerial/sticking it to the supports for the roof often give a better reception