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your sony ctv is in sleepmode. so kindly press sleep button at remote control .other wise you swith off tv ( that means remove the mains wire from pluck point) then after 5 minutes switch on it will OK.
Yes.... u must adjust the screen voltage going to picture tube....located on the CRT module>>>little board connected directly to picture tube (take back off TV and you will see ) play around with screen control on the CRT module......can be adjusted at times to keep from losing picture!!! tube is bad...i know sure looks good when showing a picture....TRY adjusting screen voltage ( YES while TV is ON>>>CAREFULL ) gl
How old is the TV?
Sony Trinitron sounds like it may be from the 1980's?
Some TV engineers can use a piece of equipment to do a "tube boost" but this is sometimes risky and can completely ruin the tube, but it's a risk you would have to take.
If the TV is over 15 years old, and has been used regularly, (like 4 hours every day or more) it seems likely that the tube has reached the end of life.
TV cathode ray tubes are like light bulbs...they do not last forever!
This may be a bad crt or picture tube. Take a good look at the picture when it's on and see if it has a pinkish or greenish tint. This is easiest to see if you turn the color adjustment all the way down. If it looks like the tint is green or pink and the focus isn't great then it's probably a bad crt. Not worth repairing if its the tube.
Are you serious? You have used that television... in particular that CRT well beyond its predictable lifetime. Congratulations. Those are early symptoms of CRT failure. Your screen may turn green very soon also. It will occur any moment now. It is not cost-effective to repair. Welcome to the next generation. You will be amazed and delighted with LCD, plasma or DLP technology. firstname.lastname@example.org