I have a 21" Sharp TV that is 3-4 years old or maybe even more.
At random times throwout the day, the picture disappears and is replaced by a bright white horizontal line across the screen. If I turn the TV off for a count of 5 or so and turn it back on, the line disappears. Sometimes it comes back after a minute or so and sometimes it doesn't. I have not been able to determine whether this is due to circuit overloads or power surges or what.
Is this worth repairing or should I just trash it and get a new one?
I have A 26" sharp I don't know the model but the same thing happens to mine.
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You TV has a bad CRT, a red CRT by the sounds of it. This TV is rather old, perhaps 11-13 years of age? Your TV has given you many years of service and I do applaud you for the care you have given it and the TV for it’s reliable in your home.The trouble you face with a rear projection CRT set of this age is that you can’t just change 1 CRT tube and expect it to be reliable and produce a good picture.All 3 tubes should be replaced, as they have all aged the same.The lives of these tubes are only about 7 years.A tube is not any easy or inexpensive repair on any RPJ TV.When you are faced with the cost of 3 tubes, which may not even be available in the market place… You should consider retiring this old friend and keep the manufacture in mind as you make a new purchase.
Samsung only makes TVs that last 2 years, mine also has the same problem. Throw it away and buy a cheaper disposable TV, despite all the hype Samsung is just another cheap and nasty manufacturer who uses its customers as product testers. Why do you think they keep changing model numbers every week ?
My thoughts is that after all these years one of the solder joints has cracked and there is enough current that builds up that it will jump accross the crack and work for a short time and then the componenet heats back up and 'well' off it goes. 15 years old. - you got some great use out of this TV. Maybe time to look to get a new one - These types of TV's were only designed to work for 10 year and then throw them away. Be aware that the new ones are only made to last 3 to 4 years. I know - I don't like it either. They cost a lot more than that Panasonic did when it was new. Blessings, A/V Media Guy
You may have been the victim of a "power surge", rather common in today's electronics scene. Lightning, spikes, static discharge, all can wreak havoc like this. Your set more than likely succumbed to one of these maladies...accordianman