Not an expert here at all, but my wife called me up saying she was hearing sparks from the back of the tv, not too visible sparks, but just the sound,anyways, I experienced the same thing when I got home, question is what could cause such a spark in the back of tv where it is not visible, but you can hear the sound of also it sounds like a beat in the back AND RIGHT NOW, WHEN IT SPARKS, THE SCREEN GOES OUT , TURNS BLACK FOR A SECOND OR LESS AND COMES BACK
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Re: rca tv electrical problem
If the TV is still operational, what you are hearing are probably high voltage arcing. Most common are in the anode cap area brought about by accumulated dust, grime and dirt on the outer glass envelope of the picture tube. This occurs mostly after a continuous or heavy rain or when the surrounding air is damp.
Since the unit is still operational except for the "sparks", this should only require cleaning of the above stated area. However, there are extremely high voltages even when the unit is off that perhaps you are better off seeking the services of a qualified TV technician.
Other possible areas of arcing are the fly back transformer, the horizontal output transistor PCB soldering points, the G2, Focus solder points. in some remote cases, it can be just inside the neck of the PIX tube.
Hope this be of some help/idea. Post back how things turn up or should you need further information.
Good luck and kind regards.
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hi there! if you know how to troubleshoot technically this will solve your problem. 1.check the horizontal section of your tv , there you will see the flyback system connected at the back of the picture tube, never touch it because there still a remaining voltage charge on it , electric shock might happens if you remove it improperly. 2. check all the components inside the horizontal section only & look for possible cold solder at board and fix it if you know how to use the soldering iron and Pumps. 3, replace the defective component if necessary thru the help of expert tv technician in your area. Thank You
if you see near plug it might be due to sparking in socket or plug by calling electrician it might be repaired easily.
But you have seen blue light in tv & chattering sound than it is dangerous.
do not put on tv &call skilled person.
Your problem is flyback transformer cap is leak or tared due to ageing or rust. Since it is high voltage transformer your boyfried get shock.
If you have technical knowledge or technical support just try the following process. Switchoff the tv and remove power chord from plug. Wait minimum 4hrs. Then remove the back cover clean picture tube and transformer cap with IP solution. After allowing 30mins dry switch on the tv. All the process will be done by service engineer only. Risk of electric shock.
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
I AM SORRY ABOUT YOUR PROBLEMS WITH YOUR TV... AS IT IS YOU BOUGHT YOURS AT APPROXIMATELY THE SAME TIME THAT I BOUGHT MINE. I STARTED HAVING PROBLEMS WITH THE SAME THING YOU DID ABOUT 6 MONTHS AFTER I PURCHASED IT. BUT THEN I THOUGHT IT WAS DUE TO SOMETHING MY NIECES HAD DONE TO THE TV. MY DAD TRIED TO FIX IT AND IT WORKED FOR A WHILE AND THEN ON CHRISTMAS EVE 2006 IT WENT COMPLETELY BISERK!!! NOW I DONT EVEN KNOW WHERE TO GET THE CONTROL PANEL.
It seems that there is EHT Leakage from the EHT Transformer Anode Cap!
Generally happens during rainy seasons, or if your TV is placed near a window or near an AC, due to excess of moisture in the air.
Unplug the TV and wait for an hour to discharge all residual charge in Capacitors. Open the back, and look for a thick red cable leading from the FBT. (It is a Black Block with a thick red cable running from it to the rear of the Picture Tube). Take a sturdy Electrical cable with the conductor visible at both ends. (Multimeter Leads will do.) Now, ground one end of this lead to any Metal part of the Chassis, and gently ease the other end under the Cap of the EHT Cable. BE VERY CAREFUL, as there are very High Voltages involved!
Do it Gently, and you will hear a POP! This indicates that the Electrical Charge inside tha Picture has been discharged.
Now Take dry cloth and wipe clean the area around the Anode Cap.
Close the back of the TV, and switch it ON. In all likelihood your problem should be resolved.
BUT, I REPEAT, DO NOT DO THIS UNLESS YOU KNOW WHAT YOU ARE DOING, AND ARE VERY VERY CAREFUL.
Otherwise, seek professional help!