Question about Sony WEGA KE-37XS910 37 in. HD-Ready Plasma Television
Ok so it turns on, the sound comes on, but the screen doesn't light up. the little sony light in the bottom middle comes on and then about 15-20 seconds later it goes back into standby. is it the plasma that has actually gone bad or are there video cards that go out on these tvs. ive been reading and appearantly this is a frequent problem. thanks a lot andrew
You most likely have a power supply problem. but the problem may not be the actual power supply. The drive cicuits for the plasma panel can load down the power supply and give you the symptoms that you are having. Without being able to be there and take voltage measurements, I'm afraid I can't narrow it down more than that. My first suspect is that one or more of the sustain boards (the boards that drive the plasma panel) have failed. That would explain the lack of display. It is likely one of 3 boards that has failed, PSU (power supply) logic (the main control board for the set) or DE2 (panel drive board). There is a chance that the panel itself is bad, but that is not the most likely cause of your problem
Posted on Nov 18, 2008
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Posted on Jan 02, 2017
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If your Sony Wega will not turn on, the front green light blinks, you hear a faint whirring sound and the green light turns red and flashes, it probably means the lamp inside the set is no longer working. If you noticed the screen beginning to dim in the preceding days or weeks, this most likely is the cause.
If the green light flashes and the picture comes on momentarily but then goes off, and the green button flashes until the set restarts, then the seal around the lamp mount is loose and needs to be refitted.
If the picture on your Grand Wega cuts in and out and the green standby light flashes, both of the set's STKs need to be replaced. STKs are small chips on your television's circuit boards and are identifiable by their labels. The specific STKs used in your Grand Wega TV will be identifiable by the numbered labels on top of the STKs.
When you plug in your Sony Wega and hear a loud popping sound, it's probably caused by a defect in the high-voltage circuit. Let the professionals take care of this one.
If, after turning on your Sony Wega, you can hear your set but the screen is black, you most likely need to replace your projection lamp.
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