My set makes a sharp snaping sound from inside and the picture goes black for about 5 seconds and them comes back on. It will sometimes do this every 30 second and at other times it may be every half hour or hour apart. It did this about a year ago and the seller came and installed a small black chip that corrected this, but they are not in business any longer. At that time they said this was a fairly common problem and they indicated they had to install some form of new board to cure it permanetly, but they didn't and now they are gone. If anyone has a similar problem and fixed it please advise what you did. Thanking you in advance GSimms
One of the high voltage anode connections is arcing, usually as a result of sealer (rtv) having been incorrectly applied during manufactor. this may be repaired by a tv tech with application of rtv, or the crt may need replacing. DO NOT TAKE THIS TV APPART!! THE HIGH VOLTAGE ARC COULD BE VERY DANGEROUS.
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Since I posted this problem, I have fixed it myself. Out of frustration, I unpluged it, removed the back panel and blew all the dust out of it using an air compressor for higher pressure.
(tv was used when I got it) So far I have not
had a recurrance in 6 months. It seems that the
accumulated dust was causing an arcing somewhere.
It may not solve the problem for everyone but it
worked for me.
Shortly after I posted this, I decided to investigate the problem, so I unpluged the unit, removed the back and found there was a fair bit of dust inside. I got a dry air supply and blew all the dust off of
the electrical components, avoiding contacting anything with the air nozzle. There was quite a bit
of dust inside that you couldn't readily see. After putting the back panel on, I plugged it back in and
its been running flawlessly since, thats almost 4 years now. It seems the noise was an electrical arc
jumping across a dusty circuit.
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