Hello, I have a Sony Grand Vega television, Model KDF-E55A20. The screen has seemed dark and now the unit will shut off periodically. It will stay off for thirty seconds or so and will come back on it's own. There are no signal lights that come on when this happens; however, if I turn the unit off when this happens and try to turn it back on the power light blinks 5 times. It will pause a few seconds and blink five times again. This continues until it makes a reboot/resetting sound and then turns back on. This only happened once maybe twice a day for a couple of weeks. Now it is happening approximatley every fifteen to twenty minutes. Any good diagnosis?? I have read that the bulb is probably bad but the bulb light has not gone on. I have also read about possibly having to replace the thermal fuse. Or maybe a circuit board?? I have no idea!! Any help would be greatly appreciated. Thank you

SOURCE: Sony KF-60WE610 Screen and Sound On/Off

All symptoms in your TV shows that you need to replace its Lamp as it has been consumed its life hours and TV requires new lamp. Lamp can be obtained from Sony Website. Price is $200, Hope this info will help you to enjoy your Sony TV in coming days.

SOURCE: Sony KF-50WE610 flahing red light (6 blinks)

Jeff, did you look at the Sony web site? They had a problem with 9 different TV models that were from 2003 and 2004, KF-42WE610, KF-50WE610, KF-60WE610 and 6 other models.
This is what it states: It haas come to our attention that a limited number of Grand WEGA rear projection TV's may exhibit warping to the lamp access door. In rare cases, some additional components may also become damaged as a result. and so on........
You probably have some components melted on the inside around the lamp. I have a 42 inch and I just replaced the lamp at Christmas and the door was melted shut. This is the second lamp that I have replaced, the door was starting to melt the first time. They never sent me anything about this problem, and as of today I am still trying to work something out with them. The repair shop who has it told me that it can't be repaired. The parts that are melted are not in stock and they don't make them anymore. They are supposed to get back with me and make me some kind of offer.
They will only fix this problem through March 31, 2009.

SOURCE: TV shuts off after on

bad connection inside in motherboard. If you are familiar with soldering check for bad connection inside and re-solder that connection . if not find a technician who can help you!!!
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SOURCE: 55" TV keeps shutting off automatically

Green light flashes 5 and then red light flashes 6

SOURCE: hello our sony grand wega KDF e55a20 has the green

Hi,
Symptom shows Lamp is not working and either lamp or its drive board is bad that will be replaced.
Did you replaced lamp in tv recently?
If not, replace it. Lamp replacement procedure would be written in user manual.
Thanks.