TV does not need to be on for this to happen. Woke up at 4am to the sound of popping and arcing- the TV was off at the time, probabley lucked out that I didn't burn the house down with family in it. Is this something I can handle? I'm a mechanic, and a so-so handy man. Could this be an easy fix or should I throw it on the garbage heap? Thanks
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Re: 32" RCA when plugged in snaps an arcs
Normally an arc or snap like that is coming from the anode cap that attaches to the top center of the crt. The voltage there is upwards of 25k so be VERY careful if you're going to inspect this for any faults. If it is the cap leaking unplug the set and take a piece of wire attached to a screw driver with the other end of the wire attached to the grounding cable around the outer edge of the crt. Gently undo the cap from the crt and allow the blade to sit in the well for a period of time to discharge the crt completely.
Next get some HV putty, sold at most electronics distributors like Mouser and form a small ring with it. Place it around the well hole in the crt and replace the anode cap pressing firmly to seal the edges of the cap to the crt. With the back still off plug the unit in and see if that's cured the problem.
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That's hi voltage arcing. Dangerous condition were a component has broken down and is arcing causing the power supply to 'crowbar' or go into over current protection mode. Call a TV repair pro for an estimate to see if you want to keep the set.
You almost certainly have a bad picture tube. The green screen was from one of the elements inside shorting out. The static sound you're hearing is the high voltage arcing out through the end of the picture tube to other parts inside the set. It's more economical to buy a new TV than to repair this one.
Sorry to have such good news, but this is one of the ways a picture tube can go bad, and it happens quite often.
Where you saw the Arcing, check closer to see wether the components are not loose on the board. You may only have to resolder the joints and problem solved. If the arcing takes place towards the tube, then you have a more serious fault. Thus involving High Tension, so I would not advise trying to repair that area if you are not familiar with TV repairs. Please unplug set before commencing any work. Regards and good luck, JUS004
It sounds like the high voltage circuit got damp and arced. This arc caused the horizontal output transistor to short.
You might try replacing the output transistor if you're experienced in this type of repair. If not then you need to take it to a repair shop.
The "whistle " you're hearing is the power supply indicating that it has a short on its load. When the power supply has an over load (short) its frequency drops down when your ear can hear it oscillating. This type of power supply is a switching power supply normally operating a several thousand hz(cycles) which is out of range of human hearing.
two common problems with RCA TV's. It sounds like your flyback is going on you. There is probably a hole and it is arcing off a cap/ or something.
You can order a new one or you can try and find where it is arcing by taking the back and looking at it in the dark to see where the arc is coming from. If you can find it try using a plastic epoxy to fill the hole
You apparently have a high voltage arc.
Possibly the anode lead to your picture tube.
Also the flyback transformer could be arcing.
If you're not experience with tv repair, you need to have a tech check it for you. The circuits operate at very high voltage and if you get into it you can get a possibly fatal electrical shock.
Be careful !!!
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.