There was a pop and then this loud noise like a jet taking off. The picture has gone away but the noise remains. I tried changing the bulb just in case that's all it was. No luck. No picture, really loud noise. Any suggestions?
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If it is a high pitched whine or buzz it is likely a transformer vibrating so hard it is making the noise.
There are ways to try to deal with this issue but the set has to be opened and probed to locate where it is coming from--
for example with back off and set on a plastic rod can be used to touch areas and exert slight pressure until the sound changes or goes away--then either replace the part or I have used hot glue etc to stop it.
Now tv turn on.Hear alots of clicking or squiling,loud motor noises turn on?Alot of clicking,the Ballast board it dead,this board help ignite the projection lamp.Tv also have a colors wheels.The colors wheel is dead,if hear squiling noises,loud motor noises.
it sounds to me a transformer in your set has gone hard to say witch. im guessing it is a CRT set the best thing i could suggest would be to take it to your local tv repair shop they should be able to sort this for you and it shouldn't be to expensive.
Loud noise is possibly made by Degausing Coil to demagnetize picture tube and its normal.
Green tint shows picture tube is bit weak in electron emission due to its age and takes time to present good white balance result (good colors)
The anode cap on the back of the tv tube is leaking the high voltage be careful as going into the back of a tv it store very high voltage and could be fatal.the solution to problem get a tube of clear or red silicone discharge the high from the tube,you do this by getting a alligator clip with wire attach clip to a ground wire on the back of the tube attached the other end of the wire to screw driver gently push it under the Anode cap you will hear a popping sound with i little sparks. remove the cap from off the tube get some alcohol wipe the dirt away apply the silicone around the anode and the anode cap place in on back and leave it to dry and cure for about 7 hrs close up back and turn on your tv and all the popping sound is gone.good luck.but if it is the wire for the anode cap that comes from the flyback is the one leaking change the flyback.again good luck.contact me on fixya.com or email me at email@example.com
I would guess the popping/cracking goes away when the picture is present. Sounds like a high voltage arc either withing the tube or due to a cracked component in the high voltage circuit. If it's the tube, then the question is: how old is the set and is it worth it to sink $$$ into it as opposed to putting the same into another unit. If it is a defective component, that's much easier/cheaper to repair. Again, age of the set, etc. I hope this helps; definitly a repair for a pro.