120 volt plug-in

[two slides]

I am replacing older model front TV with a LED tv. now there is 2 problems

1) cannot get tv to get a picture or sound--says not connected to antenna
only connected to over the air with a bat wing antenna older tv worked
fine with this hookup

2) National & maybe other manufactures have this special plug for front TV's
it is made by POWER TEK model RL1007 and has 2 plug-ins one
marked
TV and one marked VCR I suppose they need to be that way so that front
TV goes off if you try to drive with TV on. anyway here is the confusing
part----I tested both outlets for 120 volts and they were ok but when I
plug-in TV or VCR the voltage reads totally different saying I have a
short & neither plug is operative. unplug TV & VCR and plug reads
correct voltage again


anyone ever experienced this problem?? voltage changing when
something is plugged in

[Skip426]

Questions.
What brand and model of TV are you installing ?
Was the original TV supplied antenna signal over coax , through a input control box ( BOMB ; Box Of Many Buttons) ?
On the Power Tek box are there 12 volt connections that would control an internal shut down from the ignition lock out ?
Was the original TV operating properly though this 120 volt power box ?

If your reading 120 volts on a meter and the TV drops the voltage , it could be bad internal contacts on the shut down relay .
Have you tried plugging in a lamp ?
Have you tried the TV somewhere else?
Could be the box will pass enough power to show on the meter but when amps are required the contacts are poor enough that enough juice to operate the TV won't go through .
Remember a meter only needs mili-amps for a reading , when there's a real demand for power , poor connections show up.

[hydro45640]

Have you programed the tv to the antenna?

[Busskipper]

Originally Posted by hydro45640

Have you programed the tv to the antenna?

Think this might be the Issue - when we get a new TV i Have one of the kids make it work - ........

[mrk]

Originally Posted by Busskipper

Think this might be the Issue - when we get a new TV i Have one of the kids make it work - ........

When one replaces an older TV with a modern TV, two things come to mind:
clean power source and proper connections.
As mentioned above, the new set's antenna feed may be set to 'cable' or some auxiliary input. Make sure it's set to 'antenna'.
Since the new TV is actually giving you a message that the antenna isn't connected, I'd say that the TV is on and working. The power issue may actually be a problem with your test meter, particularly if you are using an inverter to power the outlet. If so, you'll need a test meter that reads 'true RMS'.
My guess is that, once the TV is set to receive over the air broadcasts, your problem with everything else will be cured. Like Busskipper said, Get the kids or grandkids to help!

[two slides]

haven't had a chance to work onto problem till other day. the TV is now in & working however see if anyone with more experience with wiring/electrical can explain this. plugged TV in same plug as previous TV & gets a short reading. I now have it plugged into a strip that you can purchase at any hardware store (everyone has these in their home) I think they are called surge protectors-----however this has a plug with a separate ground (3) prongs. why would the TV work correctly on a 3 prong plug and not when when only using the TV with 2 prongs directly plugged into socket?????

this has become a mistery to me

[mrk]

Originally Posted by two slides

haven't had a chance to work onto problem till other day. the TV is now in & working however see if anyone with more experience with wiring/electrical can explain this. plugged TV in same plug as previous TV & gets a short reading. I now have it plugged into a strip that you can purchase at any hardware store (everyone has these in their home) I think they are called surge protectors-----however this has a plug with a separate ground (3) prongs. why would the TV work correctly on a 3 prong plug and not when when only using the TV with 2 prongs directly plugged into socket?????

this has become a mistery to me

A mystery, indeed! How does the TV give you a reading that identifies a 'short'?

I suspect that your motorhome always powers the TV/VCR outlet by the inverter. Have you run an extension cord to a shore-powered 120 V outlet to see whether the TV works okay from a shore power? (I'd try this test without using the power strip.) Then try the test with the power strip in the circuit. Any difference?

You might want to try a different power strip/surge protector, too. I've heard that they sometimes go bad following a surge, but then, why would the TV work if the power strip was bad?

Good luck, and let us know how it goes.