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Check and make sure your fans are working and there is sufficiant cooling to the back of the set. Sounds like it is overheating and going into protection mode.
Hi, Question shows its Sony KDF-50WE655 dlp tv that has lamp inside and it seems its time to replace lamp. Did you replaced lamp in tv recently? If not, replace it. Lamp replacement procedure would be written in user manual and please buy Sony original lamp for better result. Thanks.
Picture goes to high green with retrace lines that shows picture tube is defective and requires replacement. Usually in above symptom, TV goes to standby mode and standby light blinks when green raster problem occurred. New TV is better option because picture tube of KV-34XBR960 would not be available any more. Thanks.
These are retrace lines. The screen on the red tube is turned up too high. Inside the set there are 6 knobs. 3 for focus & 3 for screen. Turn down the red screen until lines are gone. These knobs are usually found by pulling of the front panel.
Take off the speaker grill and the particle board just behind it. You'll find a block with six knobs. The 3 bottom knobs can be adjusted ever so slightly to fix your problem. Do it very slowly. You wan to adjust the center knob for green. Turn it until the lines go away. But again, do it very slowly. You're adjusting the voltage to the green tube. Do it too fast and you can damage it.
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