Just replaced the bulb with a brand new sony bulb. it takes me almost 20 minutes to get the tv to turn on..i turn it on it turns itself off and red light blinks, and i keep trying until it finally powers up only 3 yrs old,,,,,nothing the like the old tvs so much better. lol could you give me any clues,,,i hate to go and buy another tv at $1200 or more, ugh.

3 blinks of Standby/power LED of Sony sets denotes a SMPS board [G-board] failure. . Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Hi,
If it is Sony KDF-42WE655 model then it sounds TV needs lamp.
Have you replaced its lamp since 2006?
And please check when TV gets off itself, does its standby red light blinks? if yes, how many times it blinks? This is an error code.
Let me know to find out any possible solution.
Thanks.

Its problem of bulb that got weak in result and causing TV shut down.
Replace bulb in TV and I would recommend to buy Sony original bulb for TV safety.

If you haven't done so, replace lamp part#XL2000U

or a new lamp. you could first replace the lamp.
the screen might work fine for a couple of seconds, but then it fades away or deteriorates. This means the lamp is going bad.

I get 5 blinking red lights for about a minute or so before it powers back down. The Sony TV has a specific light that i presume is supposed to light up when the bulb is out. I'm unsure if this is what it is.
no picture, no sound. tries to boot with green light blinking a few times. then goes to red blinking light, six in all, then waits a few moments, then another 6 blinking red light.
Bulb was already replaced several months ago but we do have the TV on for long periods of time.

same problem... tv turns on and off repeadly while the green light flashes. seems as if the tv keeps restarting. please help.

the tv will try to reboot a few times. just let i try and eventually it will start blinking red. if you could count the red blinks then i can further assist you.

The problem is your bulb is going out or malfunctioning. I had this same problem and Sony's repair service couldn't fix it. I posted on another forum and found a great tv repairman that told me that when the lamp is going out or bad that it can cause the tv to do strange things. I replaced the bulb and the problem is gone. Here's a tip, you can replace just the bulb for about half the price of the full lamp assembly. Sony wants $250 but I bought just the bulb for $125 on ebay, spent 20 minutes taking apart the housing to replace the bulb. Just make sure you take note of how the spring is installed before you take the first part off. Other than that, piece of cake.