For the past month, picture disappears and the screen is black for periods of 2-3 minutes. The sound is fine. We contacted Direct TV, thinking it might be in their box. They sent a new one, we followed all of the instructions, but there was no change at all. We concluded that the problem must be in the TV itself.
The component board may be going out depending on what style type TV it is.
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SOURCE: no picture but has sound
If the screen turns bright blue then you may have a bad blue crt(picture tube) I suggest an on site diagnosis by a Sony ASC to verify if it's the crt. Crt's can run up to $150.00 plus installatin and alignments.
SOURCE: sony tv KDF55WF655
I had the same problem. The sound and picture went off for about one minute and the green power light flashed green. Then the TV came back on. It sometimes stayed on for hours and sometimes went off again in a few minutes. The TV is just over 3 years old. Had the service people out and the problem was the bulb. It cost $420.00 to fix. He said our bulb lasted twice the average life. I wish that I had known this since it is a simple fix and the cost of the bulb on line is under $200.00.
Ken
SOURCE: TV Picture Goes Black
I had the same exact problem.
I removed the bulb and cleaned it. There is a small screen at the top of the bulb and it was covered with dust. Once it was cleaned I replaced the bulb and it solved the problem.
Thanks to those who posted the solutions
SOURCE: Sony KF50WE610 Vertical Blue Lines Across Screen
the vertical blue lines indicate some interference from other electronic gadgets near your tv. it started showing up on my sony grand wega when i installed my wireless modem. i almost ordered a new rear projection lamp costing over $100 but decided to experiment. i first moved my desk computer farther away from the tv then isolated the wireless modem router by placing it inside a small glass - the vertical blue lines became lighter in color so i dedided to find another small glass that fit inside the first glass container then put the router in the double glass - no more blue lines and my wireless modem router still works.
do some deductive thinking to figure out what's messing up your tv and isolate the interference.
good luck!
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I have the same problem. It keeps going out every 2 to 3 minutes.
My TV goes off and on every couple off minutes - sometimes the sound stays on and other time it goes off as well.
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