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You need an 800 degree soldering iron. It is advisable to tke this to a repair shop. A qualified echnician may bae able to repair the turner without further damaing. It is likely if you try to do this yourself the tuner will be damaged to the pint that it will have to be replaced which will mor than double your repair cost.
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If this was the plug- the RF plug socket - that had come off and fallen all you need is to remove the power of the TV in the first place.
Now get access to the back of the TV- use a good flash light and since it is easy to see the RF pin protrudingg forward , you can plug and mate the socket into the pin.
Now if this pin is broken it can be due to a faulty pin or even if this is direct link to the TUNER in which case you will need a soldering iron to solder the broken pin and fix.
This is not a tough job and can be done by you with such care.
As long as it was a clean break this will be an easy fix. If the tuner got damaged at all, then you will need to replace the whole tuner, which can be a bear if it is a two sided board. You can buy a new connector at just about any electronics store. You will need a soldering iron, solder and wick for the repair. You might be able to just solder the original connector back on if the break is clean enough. You will also need to stick a wire or something like that in the hole to keep the plastic from melting shut from the heat of the iron.
You can buy the RF jack and solder it back onto the tuner as long as the tuner has not been damaged beyond repair. Inside the tuner the center conductor from the jack solders into the printed circuit board. If any small parts are broken or missing then you will have to replace the tuner.
If you are decent with soldering iron you can repair it yourself. Remove the back, and remove the signal board from the unit. Unsolder the Tuner from the board( If I've lost you already, call a TV shop for repair) Remove the shields on the tuner and inspect for damage to the tuner itself. If the board is in good shape, replace the RF connector with RCA # 215543. you'l have to unsolder the old ends connector ( the wire thats still there broken ) from the board, then attach the new end, and solder to the board. Then using high heat, solder the Connector to the tuner housing. Replace tuner on board, hook everything back up, and you should be in business.
To repair this problem you must have soldering equip. and reconnect RF input inside of tuner after removing tuner shield, then heavily solder base of RF connector to tuner frame to avoid same issue. Or you could hook audio/video cables from the output on another product such as a cable/sat. box or vcr to video 1 or video 2 input on back of tv. Wires should be color coded so all you have to do is make sure you go from the output on the other device to the input on your set. That should fixya.
The RF jack is solder directly into the tuner module and as long as it
did not break the circuit board inside that it connects to, it can be
repaired . Takes a lot of heat though to solder the jack to the
frame of the tuner. Sometimes I use 2 irons to get it hot before
the plastic guts of the jack melt too bad. Also is sometimes hard
to cram the jack back into its mounting hole, may need to file it
out some. The makers don't solder these on they are just pressed
in and crimped which is why they break off so easily. I recommend
using the push on type cables to avoid this problem. Don't forget
to solder the center conductor into the tuner board.
Hope Ya Fix It!
The RF jack is solder directly into the tuner module and as long as it
did not break the circuit board inside that it connects to, it can be
repaired . Takes a lot of heat though to solder the jack to the
frame of the tuner. Sometimes I use 2 irons to get it hot before
the plastic guts of the jack melt too bad. Also is sometimes hard
to cram the jack back into its mounting hole, may need to file it
out some. The makers don't solder these on they are just pressed
in and crimped which is why they break off so easily. I recommend
using the push on type cables to avoid this problem. Don't forget
to solder the center conductor into the tuner board.
Hope Ya Fix It!
Its fixable. the question is how much of the inside broke with it.
cost for repair on that usually averages 45 to 65 dollars... unless tuner is damaged in most cases not. if not hooked to tuner then maybe a new isolation block..simple job
Good luck
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