My Sony Trinitron was manufactured in 1998. For the last couple of days, every minute or two, the picture goes black for 2 to 3 seconds, then comes back again. Since it is 9 years old, I dont want to invest a lot of money in it if it is something major like the picture tube, but I expected a TV that cost as much as this one is to last longer than 8 or 9 years.
My Serial number says it si a Sony Trinitron WEGA KV-36FV1. Any ideas?
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Re: Sony Trinitron experiences
The screen control inside the set may be on the highvoltage transformer or on the crt socket; either way if you can turn it up just a little clockwise and the picture comes up but doesn't look good you are likely to have a bad tube. Or try tapping lightly on the glass neck and watch the picture as you tap. If it reacts to the tap you have a bad tube. but the turning the screen control is the best test. Turn it the other way the picture goes off immediately. bad tube: too costly if it is available.
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Hello!I bought 12 years ago a SONY TV KV-28FX60D with out any technical issue so far.The last couple of days I powered on and after five minutes it starts showing only half of the screen, losing the bottom half of the picture. what do you think it might be. Can you suggest a part to be replaced and if it is worth fixing, cost wise? Thanks KONSTANTINOS
After being on a little while, the screen goes black (no audio as well) for 20 to 30 seconds. Green light stays on. Then, picture comes back on and takes a couple of seconds to get up to full brightness. About 5 seconds or so after the video comes back, the audio returns.
Until this morning, has only happened a couple of times a day, now happening more often. About 3 times in last 20 minutes.
This is a simple and common problem. The solder joints on the vertical output IC have cracked loose. I actually did a housecall on the exact same set with the exact same symptoms this morning! A good tech will resolder the pins of the vertical output IC and all other major solder joints on the main board and the set will play fine.
I would try adjusting the screen control on the flyback. The flyback can be easly located, find the red wire attached to the top of the picture tube & follow it down to the flyback. on the flyback you should find two controls, one screen & one focus. you sould be able to read the words above each control, only adjust the screen one. slightly increase the control till the picture stays on, if you turn it too much you will get small white lines going across the screen. Now if what i have told you fixes the set, then it is only a tempoary repair. could last days or mothes, maybe years. if it starts to happen again later the set will have to be replaced. this is a sign of the picture tube starting to get a weak. ALSO DO NOT PLAY WITH THE RED WIRE IT CARRES VERY HIGH VOLTAGES EVEN WHAN UNPLUGGED FOR DAYS.