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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Ok if I understand what you are saying. You are going from your TVs audio jack into an amplifier TEAC AG-V8050 and then into the Sennheiser T1250 unit? This is done to amplify the sound so your wife can hear the TV via Infared into headphones I am guessing. The connections would have to be as follows.
TV RCA jack (Installed by someone to TV audio Output section, most likely the speaker) to the Amplifier TEAC AG-V8050 via RCA cable then from the Amplifier via RCA cable to the Sennheiser TI 250 IR Transmitter. The transmitter then takes the audio input and turns it into a digital signal which is transmitted via IR to headphones which your wife is using.
First of all the amp TEAC AG-V8050 is not needed. what happend here is the person doing the installation took sound off of a preamp to avoid having to deal with the TV volume control. This works but it makes matters harder.
So here is how you troubleshoot this problem:
1) Disconnect the amplifier and plug the RCA jack of the TV into the RCA jack of a set of amplified Mono headphones. (This is to determine if sound is coming from the TV)
If not the problem is in the TV audio section and you will need to take it to a TV repair shop.
2) If audio is coming through the headset the trouble is in the amp or the sennhiser unit. To test the sennhiser unit: plug the sennhiser into the audio out of a VCR and listen in the headphones for sound. If you have sound, the sennheiser is good and the problem may be in the amplifier, but if you do not have sound the the sennheiser is bad.
3)Connect the audio out of the VCR into the audio in of the amplifier and plug the output of the amplifier into the sennheiser which tested good with just the VCR alone.
If no sound is present then the amp is your culprit.
Once you find out which component is the problem, I would suggest finding a rapair shop here on FitYa to repair your unit or having an electronics technician come to you to fix the bad component.
This should help,
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.
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.