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Gypsy
24-01-2005, 11:41 AM
<gpgelles@optonline.net> wrote in message
news:1104601600.713448.3070@c13g2000cwb.googlegrou ps.com...
> I am wall mounting a Sharp LCD TV which has an AC Adapter brick (12v dc
> / 5.0A). I need to splice the cord from the brick to the TV in order to
> run it through the wall. I saw another post here for using 16/4 wire to
> accomplish the same with a PDA.
>
> I made a 10ft splice using m/f insulated disconnects, hooked it up
> outside the wall and it worked fine. I ran the 16/4 through the wall
> and made new connections at the pulled side. I checked all the
> connections. Before connecting it to the TV I, plugged in the adapter
> and got 0v. I removed the adapter from the wall connectors, plugged it
> in and still got 0v at the brick connectors. It would appear I somehow
> shorted out the adapter.
>
> The adapter (UADP-A044WJPZ)has 4 stranded conductors: White, Red, Blue
> and bare shielding which was taped at each connection. White is 18awg,
> Blue and Red are 22awg. The White and Red are connected to the tip
> center, and the Blue and shielding are connected to the tip outside. I
> doubt any of the connections were cross wired and yet now I am not
> getting any output from the adapter.
>
> The TV works fine with a new adapter. Any suggestions would be
> appreciated.
>
> Thanks.
>

While the transformer could have just decided to give up, just as you
started cutting.
And you seem sure nothing was shorted out.

Check the wire for broken conductors.
Sometimes you can get a bit overzelous stripping , and actually pull the
inside conductor apart inside the insulation farther down.
Use a needle to pierce the insulation at various points and a V/ohmmeter

Gypsy

gpgelles@optonline.net
24-01-2005, 11:41 AM
The only new splice I made was at one end of the 16/4 in order to snake
it from box to box. When it did not work I connected the adapter end to
the original end using the m/f connectors, thereby bypassing the 16/4
length. That's what is so confusing. Could this be an adapter type
which requires a particular load to work, and it's not getting that?

Good idea to check the insulation futher down. Thanks. Actually I'll go
back to square one and check all the connections again.