Question about Sony Grand WEGA KF50WE610 50" Rear Projection HDTV-Ready Television

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Problems turning my tv on, need to try several times

I have a Grand Wega and it worked great, but as of lately, most times I have to try several times before it will finally turn on. When new, the TV would make a normal buzzing sound , then the power LED would blink a few times, then video/audio would appear. Now,after the buzzing sound the LED will blink and sometimes fail to deliver video/sound;sequence will repeat a few times and with luck I will be able to get it to turn on. When unlucky, the LED will flash yellow, then turn red and blink five times in a row then a long pause , then red again. After a couple of this RED led cycles it will go solid red and stay off. Sometimes it takes a few of these cycles and even unplugging of the set for a few minutes before I get it to operate. Once it´s on, it will stay on with no problems.

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Re: problems turning my tv on, need to try several times

I just recently had the same problem and finally my set would no longer turn on. I replaced the projector lamp and now my set works. However, when it first comes on, it only stays on for about 2 minutes and then goes off. After another minute, it comes back on and works fine from then on. I don't believe this double power up can be any good for the lamp, but I don't know if the problem is the lamp or the set. These lamps run on about 65 volts, but require a short blast from 5000 volt source to fire up. At $200.00 a lamp, I don't want to go buy another!

Posted on Jun 06, 2006

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Re: problems turning my tv on, need to try several times

Hello Mel1,
To make a long story short.....You have a bad lamp. That is your only problem. If you hear that buzzing sound, that is the ballast trying to kick start the lamp. Just change the lamp and all is good. Make sure you get the correct lamp...and you wont end up kicking out money for another lamp in 2 months.

Best regards

Posted on Jul 08, 2008

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Problem with Sony Grand Wega TV

This could be due to bad capacitors in the sweep supply, a bad High Voltage block, a bad regulator.

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Sony Grand WEGA KF50WE610 tv will not turn off

Problems that do not happen all the time are hard to find--2 things: if set blinks the red light try to count the blinks--usually that is an error code.

Also this set if it does for the most part work should have an error buffer.

With the set turned off and using the Sony remote:



Volume down


If it has this when it comes on there will be a box in the middle of the screen with several items listed---all must have a zero to the right of them---if one has a number(any number) it means it has detected that error that number of times.

Let me know what you find

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1 Answer

Recently changed my bulb for my Wega LCD KF-42SX300U TV. Since then it is turning itself off, with no particular pattern. It can come straight on and last for a few seconds, or last the entire evening....

This is a classic case of a faulty lamp(even though it is new). Possible that it is a ballast(lamp power sply) problem but it is more likely that the lamp doesnt quite meet the required specifications. Your lamp may be a Non-OEM or a refurb. You should try to get it exchanged with the vendor you bought it from. is a great source for bulbs.
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Its the fan that cools the bulb. Try turning on the tv and look at the fan to the rear of the bulb. If the fan is not spinning that is your prblem. The tv has a safety switch that will cut off the tv if the bulb gets too hot. I was able to tap my fan with a pencil and get it spinning, but that is just a temperary fix. After a while, you will find the fan will stop working all together and it will need to be replaced.

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Hi, yes it`s time to replace the lamp, and remember to turn maxxed out brightness to normal once you replace the lamp :) good luck, video-tek

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The first time my lamp needed replaced, the red light came on as well. This time my tv did the same thing, but after talking to my tv repair man he thought it was the lamp. He said that if you use your tv often then the lamp probaly needs to be changed after two or three years. I replacedmy bulb and it corrected the problem and I MUCH BETTER PICTURE.

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