Question about Televison & Video
The TV worked fine, then this problem happened intermittently, and now it happens all the time. What happens is when I turn on the the TV, I see the picture for about 2 seconds, then it goes blank. It was working fine yesterday, then I turned it off for a couple hours, and came back to the problem I'm having. I've tried unplugging the TV for long periods of time and it still doesn't work. I've had this TV for only 4 months.
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Posted on Jan 02, 2017
Sounds like the CRTs are going into protective blanking due to the vertical output ic needing to be resolderd. Try resoldering the vertical IC that may possibly fix the issue.
Posted on Jun 15, 2008
This sounds like the ballast for the lamp is going. The ballast sparks the lamp, and if it starts to go, there's not enough current to keep the lamp sparked. Thus it starts to fail: it's the same principle as a fluorescent lamp fixture. Ballasts are available at any service depot, but they're fairly expensive, and perhaps prohibitively so; you may want to look at replacing the monitor itself.
Posted on Jan 07, 2009
I had the same problem. I deducted that if my TV worked fine for an hour or so and then the colors became bad (green, people's faces purple...), it must be a overheating problem. Simple logic, right? So, I picked up a few tools and a small vaccum and went to work.
I went first for the main source of heat: The lamp. Just a few screws, and I removed it. The lamp cage has a fine screen to prevent the dust to cover the lamp. Mine was covered with dust! And the fan behind the lamp was also covered with dust! Bingo!!! That's my problem! I cleaned everything and vaccumed all the air vents on the the back of the TV. I put the lamp back and checked that the fan was working. The TV works like new since!
Before you are out of a TV for days and spend an arm and a leg for a "Technician" to fix it (replacing expensive parts that didn't need to be replaced in the first place), try what I described above first. It's very simple and it takes only 15 minutes.
Since my TV is 2 1/2 years old, I purchased a replacement lamp. I know that one of these days it will burn out. I'll be ready and my TV will be working again in 15 minutes!
Since my problem was solved, I didn't go to the next step. There must be one or two other cooling fans inside the TV, but they must be working...
Posted on Jan 25, 2009
Testimonial: "YES IT IS A HEAT ISSUE(IF YOU HAVING GREEN SCREEN ISSUES LEAVE THE BACK COVER OFF AND PUT A SMALL FAN BLOWING IN THE LIGHTBULB AREA.PROBLEM SOLVED"
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