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There is really no easy fix...but patience is on your side if you have some. You will need to buy an RF connector at a electronics store..Please visit a commercial dealer, Radio Shack is to limited! Pull the tuner out of the tv board, open the cover that contains the solders. Lets hope the board is not cracked. and be sure one of those small coils are not pulled out..Donot even think about touching or moving these coils if you open the wrong side ot the tuner shield. Reconnect the tail of the RF connector through the board. You sometimes will have to cut the tail length wise for a fit. [You better buy two RF conectors just incase you make a goof. Then solder the a ring around the RF connector to the tuner box. Reinstall into the tv board! Hope this works!
Hissing noise and picture on and off means faulty flyback transformer, it has a small crack and voltage is leaking out, replace the flyback, if tv still not working replace horizontal output transistor (broken flyback could blow the transistor).
Its the plastic cassing making the noise. If you press the tv together along the edges you will here a crack. Samsung and others did not use 99 cent padding between the plastic and the metal you need cushion padding. Its like not using a gasket or seal. Its a simple fix but the tv companies say its expansion.
a lot of times when a set is dropped the printed circuit board gets cracked, the only way to tell is to remove the back and printed circuit board and check; if not too badly damaged can be 'hard wired' across breaks and fixed
If the glass picture tube is cracked it is not repairable. In some
cases it would be possible that the tv would still work if it has a
cracked glass but it would not be advisable to use it as it could allow
x-ray radiation to escape. The tube is a vacuum and a cracked tube
would lose it's vacuum (**** air inside) and cause it to instantly burn
out when turned on. Sorry :(
From what you describe, a solder joint has probably cracked loose in a power supply or deflection circuit, which is quite common. Since you do sometimes see a good picture, all of your major components are fine. Repairing cracked solder joints is a very easy procedure and definately worth fixing on a 32 inch TV. The first 2 digits of the model number indicate the size of the TV.