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Does a LCD TV have a light bulb in them? If so, how long should it last?

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There are 2 kind of LCD vision, one have Bulb (its bit older ersion) and 2nd LCD have Back-Light for illumination. LCD with Bulb calls "LCD Projection" and back-light LCD calls "LCD TV".
If you need further info, please post back here.

Posted on Aug 19, 2008

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Posted on Jan 02, 2017

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What is an Samsung UN40D6500 LCD TV? LCD TV Liquid Crystal Display, which stands out from the bulb or CCFL Cold Cathode Fluorescent Lamp, which is a thin tube like a drinking straw. By horizontal long as...


Hello
What is this? Are you trying to take a class to everyone to thie world, how the LCD TV works? I think you be a student, not a professional. If you wer a professional, you may won't dare to post this as a problem. OK.

Feb 11, 2012 | Computers & Internet

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Why LCD TV have No Picture only sound


Flat-panel LCD TVs have a lifespan newly approaching 100,000 hours on average. The lifespan of an LCD TV is generally longer than that of similar-sized plasma televisions. Some manufacturers even claim that their LCDs can last upwards of 100,000 hours when used continuously under controlled conditions (e.g., in a room with "standard" lighting conditions and 77&deg; temperatures throughout). Just how realistic such claims are is debatable. After all, whose living room has no windows and remains at a perfectly comfortable 77 degrees year-round? <br /> In any case, the pictures on fluorescent backlit LCD TVs will show some "wear" because they are generated by powerful lamps, which, like any lighting appliance, will dim over time and with use. The picture you see will dim ever so slightly as the backlighting bulbs dim. One other consideration is that CFL fluorescent backlighting will change colors over time. This will change the white balance on your TV and cause color calibrations to be thrown off. <br /> Therefore, the most important thing to consider when it comes to the lifespan of your LCD TV is the actual lifespan of the light source in your LCD. LCD TVs last as long as their lightsources do. So, the lightsource in your LCD TV is the critical component of your LCD display unit. Newly introduced LED backlit LCD TVs will have the best long term performance. LED backlighting is superior in that the white balance of the TV will not be affected by changing bulb color over time. It's a more consistent bulb technology and will also maintain its brightness longer. <br /> The edge lit version of LED TVs will use far less energy while local dimming LED backlighting will be more accurate and present a better picture while using more power. We believe that local dimming LED backlighting will be slightly less stable from a life span standpoint. <br /> To ensure the integrity of your lightsource for the duration of your LCD display's lifespan, you will definitely want to adjust the CONTRAST setting of your LCD TV. Too high of a CONTRAST level will prematurely age your lightsource because it will have to work harder to maintain such light intensities. Your best bet is to keep your CONTRAST set appropriately for the conditions under which your view your LCD display. Brighter ambient light levels require slightly higher CONTRAST levels, while lower ambient light levels demand less CONTRAST <br /> If there is sound but no picture, only sound it has more chances of faulty back light repairable from Service Support. <br /> Hope this helps, if so do rate the solution. <br />

on Jan 08, 2011 | Sony BRAVIA KDL-40S2010 40 in. LCD...

2 Answers

I purchased a 32 inch Westinghouse LCD TV from Best Buy exacly 5 years ago. I was told then that the bulbs would last atleast 8 years. Now, my bulb has gone out and I feel like I was mislead as a consumer....


Not likely that the Fluorescent lamps all went out, more likely the backlights inverter board or the power supply has gone out. The lamps are rated at 50,000 hours, but the electronics that drive it is not, same as those CFLbulb in your house, it does not last 8~10,000 house as advertised, the electronics go out first. Smae for thsoe new LED backlit TV, claiming 50,000 hours!

You need to have it repaired.
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.

Jun 13, 2011 | Westinghouse LTV-27w7 7 in. LCD HDTV

1 Answer

My parents have a Sony KDF-E42A10 42" LCD TV. They have audio, but no video. Screen is black. Do you think they need a bulb replacement?


Yes, if lamp has not been replaced in last 2-3 years then it is lamp problem. If tv does not shut down and its standby light does not blink in red then lamp is cause of problem, replace it to fix tv issue.

Sep 26, 2010 | Sony KDF-E42A10 42 in. LCD Television

2 Answers

Sony KDF50E2000 lcd tv has burned out it's second bulb. Replacement bulb was OSRAM brand. It only lasted 10 months, now it won't come on. Should I be looking at the ballast or did I just get a poor...


Hi,Osram lamps average around 3000-4000 hrs.Normally 1 -1 1/2 yr.I do think the lamp went out.The ballast is a possibility,when it's going bad it will make clicking noises or attempts to light the bulb.I recommend to get the Original Philips lamp for they average 6000-8000 hrs 3-4 yrs.

Mar 25, 2010 | Sony KDF-50E2000 50" HDTV

2 Answers

Tv wont power up Standby light keeps flashing.


First step in any Sony LCD projector repair is bulb or lamp replacement. Fixes 95% of problems.

Taking apart and trying to measure things without a known good bulb is a waste of time and effort.

easyab

ConvergenceRepair.com

Feb 26, 2010 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

We have a sharp lcd tv. it is 2.5 years old. The


the lcd tv hhave somethig like a bulb and after a period of use that bulb must be changed. take the tv on service. the service man wil see what is the problem most accurate.

Feb 14, 2010 | Sharp LC-32AV22U 32 in. LCD TV

1 Answer

What does the orange light on the front of the TV, with a picture of a lightbulb next to it mean?


It probably means you have to replace light bulb inside tv. They last a certain amount of hours in lcd and plasma, and projection tv's. The icon is telling you you are near time for replacement. You can get to most tvs light bulbs your self or a repairman can replace it.

Aug 12, 2009 | Zenith Televison & Video

1 Answer

LCD Sony TV - Skwiggly line


Hey there I think the problem is coming from your LCD chips not your bulb, the bulb has nothing to do with the color or skwiggly lines it just shoots out white light,your LCD chips are burnt and the problem will not stop by changing your light bulb you need to replace the OPTICAL BLOCK the skwiggly line will just get worst with time
hope this helps


please rate this solution !!!!

Oct 12, 2008 | Sony Grand WEGA KF60WE610 60" Rear...

2 Answers

Mitsubishi WD 52528 tv


I had the same problem last year - it was, indeed the bulb. At the time the tv was still under warranty and Mitsubishi sent me a replacement bulb.

Dec 27, 2007 | Mitsubishi WD62527 62 in. LCD HDTV

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