Question about Panasonic PT-50LC14 50" Rear Projection HDTV-Ready Television

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Lamp why does my lamp keep burning out

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Re: lamp

Are you buying the original lamp from Panasonic? If you are, replace the ballast circuit in the TV set. Good Luck

Posted on Sep 19, 2007

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I have a mitsubishi 3d dlp tv model wd-73640. The lamp keeps burning out. We have replaced it 3 or 4 times in a year. Do you have any idea why this keeps happening?

These lamps should last around 5 years so I can understand your frustration.

Normally the lamp life is shortened by heat issues? Do you have enough space above, to the sides and back to let air flow in and out of the television? Are all fans working? Are the fans staying on for a while after you turn off the TV?

If you're using a power strip to turn off the TV the fans can't run when the television is turned off and it won't cool properly.

Oct 05, 2015 | Mitsubishi Projection Televisions

1 Answer

I have a sony kds 55A2000 and my lamp went out so i replaced it. and it startes up fan goes on and off . and tv shuts down light still blinks red? My optical block is getting a light green yellow tint but...

Lamp Fan should not cut off and on it should run at all times when TV is Turned on.Lamp Fan is designed to run when set is turned on to Keep Lamp Cool otherwise Lamp will burn up.
Yes Bad optical unit block could also cause set to shut down.But most of them will Play but with Dots,Green yellow tinit or Big blue Spots

Jun 23, 2011 | Sony KDS55A2000 55" HDTV

1 Answer

My Sony tv model number kp-48v75, keeps blacking out. the sound keeps going but no picture. The picture comes back in when I turn it off and on again.

must be the lamp getting burn out, if its a rear projection tv it has a lamp which has a lifespan. try to contact sony.

Mar 23, 2011 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

I put a new lamp in tv wont come on lamp light keeps flishing

If the lamp light keeps flashing it usually means that either the lamp door has come loose /the existing lamp has burned out. The first thing to do would be to open the lamp doors(inner and outer) and make sure that they click into place. If problem persists then its time to replace the lamp.

Aug 26, 2010 | Hitachi UltraVision 60VF820 TV

1 Answer

The lamp temp and power lights blink and then the tv shuts off. Will not turn on.

CK your Lamp Fan if it is defective TV will shut off in order to keep Lamp from burning out.You also need to post your Make and Model number it will make it alot easier to help you.Thank You

Jul 02, 2010 | Projection Televisions

1 Answer

Just replaced lamp and sony wega rear projection turns off than 15 seconds later turns on what do i do to fix

CK your Lamp Fan, if it is defective and stops running Lamp will shut off in order to keep from burning it up.
If Fan starts and stops it is defective. Fan is to run at all time.

Mar 17, 2010 | Projection Televisions

1 Answer

Replaced the lamp on 50v710 keeps on burning out

You have a bad Ballast. This can be repaired sometimes by replacing the capacitors on the Ballast circuit board.

Jul 29, 2009 | Projection Televisions

1 Answer

Bulb keeps burning out

There are several reasons for short lamp life. Inadequate ventilation or clogged cooling fans, a bad lamp driver or lamp ballast (they are the same) and the use of non-original Sony lamps, as the aftermarket replacements are known problem causers. Remember too that the number of times the lamp is turned on and off is a BIG factor in how long the lamp will last.

Nov 13, 2008 | Sony Grand WEGA KDF-70XBR950 70" Rear...

1 Answer

Lamp keeps burning out. I have had the tv 2 years. The original lamp burned out in 1 year. I have since replaced the lamp at least 3 more times in the following year. Help!


Im not at all familiar with your sony model but I do know that when A lamp is replaced you must reset the lamp timer if it is not reset it will cause premature lamp failure.
This is normally in the engineers menu as I said I dont know your model its not one I recognise so im sorry but I cant tell you how to enter service mode.
Hopefully one of the techs on here will know how and help you.


Nov 17, 2007 | Sony Grand WEGA KDF-42WE655 42" Rear...

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