My Sony tv is randomly shutting off and coming back on. It can go for several hours or it could be every two or three minutes. I've had the tv for about a year and it shows no other problems. Sony really had no solution other than leaving it unplugged for a little or making sure it was plugged directly into an outlet. I have an extended warranty and have contacted a repair man. They haven't come out to look at it yet, but they think it could be the lamp. The problem is if it turns out to be a lamp, the warranty won't pay for the service call because the lamp coverage I have is just for parts so I want to see if I can figure this out before having the repair man come out. The lamp indicator trouble light on the front of the tv is not lit and the tv doesn't blink in red for the trouble codes when it shuts off. Any ideas?
Folks, if the red light is blinking, it's a trouble code. In order for anyone to help, we need to know how many times the red light is blinking...
I have the same problem with the my sony 50xbr1 turning itself off and on. I had the bulb replaced yesterday and it is still doing the same thing. My TV is a little over a year old and sony covered the bulb replacement- I think because of the class action lawsuit. In my case the bulb replacement did not solve the issue.
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.
SOURCE: Sony KDS-R50XBR1 shutting off
My Sony was doing this too. The tech found that the reflector around the bulb was cracked probably from overheating of the bulb. The TV was shutting down to cool down the bulb. This fixed the problem. I had over 6000 hrs anyways on my bulb. HTHs
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