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How to clean a finger print from the bulb of a projection tv

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If you have a dlp you have a lamp(bulb)you can clean it with 100% alcohol,use gloves not to get oil from your skin on it while reinstalling it.
If its a rear projection unit(you have 3 picture tubes,clean them with a damp(water) paper towel.

Posted on Sep 26, 2009

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1 Answer

I removed the back cover to my TV glass moved, cleaned it, cleaned lights,repositioned it in place .Now no pic showing? Just sound? Need help...


if you touched the projection bulb it most likely blew out. you can not touch it at all with your hand or fingers

Jun 07, 2014 | Televison & Video

1 Answer

The red bulb after 20 minutes is out


in projection tv's there is what is called a color wheel. The color wheel could be out. FYI - if working with halogen bulbs do not touch the bulb with your fingers. Oils from your hands cause premature bulb failure.

I hope this helps!

Aug 13, 2012 | Hitachi Televison & Video

1 Answer

My TV is Blowing bulbs and the fan is running. What should I be looking for to fix the problem?


There sounds to be a heat problem here. I suggest a cleaning of the system. When you have it apart, using a can of compressed air and/or a shop vac, clean the dust from the system.
When installing replacement bulbs, be certain to NOT touch the lamp with your bare fingers. Always use a clean cloth or tissue. The oils on your fingers can likely cause the lamp to heat up and burn out.

If this doesn't resolve it, then I would consider a repair tech. According to my research, this TV is ready to be retired.
You can get a very nice Flat Screen with High Definition for quite cheap these days. My opinion on the 3D tv's are that they're not quite ready for main stream yet. Get one with either 120 or 240 Hz, as they will provide the best action video. 60Hz will be quirky/jerky, but still better than the picture on your old one.

Good luck,
Mark

Apr 03, 2011 | Toshiba 57H81 57" Rear Projection...

1 Answer

Back smells like its burning,what is this from?


ITS DUST IN YOUR BACK OF TV , TAKE BACK OFF MAKE SURE TV IS OFF, TAKE CAN OFF COMPRESSED AIR , GENTALLY TAKE LIGHT BULB OUT, IT ONLY HAS TWO SREWS PUT IT ON THE FLOOR CAREFULLY, DONT TOUCH THE BULB WITH YOUR HANDS OR FINGERS, THEN BLOW ALL THE DUST OUT OF THE LIGHT GEN AND BULB HOUSING PUT IT BACK TOGETHER THEN YOUR PROBLEM IS FIXED, WHAT YOU SMELL IS DEAD SKIN CELLS GETTING IN THE LAMP AREA AND HEATING UP AND BURNING , KEEP IT CLEAN BACK THERE , AND IT WILL KEEP OTHER THINGS FROM HAPPENING

Aug 06, 2010 | Mitsubishi WD-65735 Television

2 Answers

I moved the TV about a foot and now I get no picture. The power light blinks on and off continuously (won't change even when I hit the power button). I've checked all my cord connections.


Try thisthought...If you moved it the bulb my have broken its filament. With gloves, cotton, remove the bulb and check with a continuity tester or DMM to see if the filiment is showing a closed circuit. Do not touch the bulb with an uncloven hand. The grease from even a finger print will break it. If you clean the bulb use acetone and let dry a long time before reinstalling. That is an external problem though, It sounds to me that the internal filemnt is K-PUT.

Jun 15, 2010 | Toshiba TZ50V51 50" Rear Projection...

1 Answer

I have a zenith lcd projection tv 5yrs old. replaced the bulb last august. It has started to develop a green hue across the screen. it is random, but quite annoying. and confusing. I would appreciate any...


Don't know the exact problem, but typical projection tv's get very dirty and this may affect picture clarity, contrast, and perhaps color, including overheating of components. Make sure you have good airflow, clean filters, and a projection lamp that is free of contamination and finger prints. If you have a setup function, check the colors for purity and integrity

Jun 13, 2009 | Mitsubishi WD-62525 62" Rear Projection...

1 Answer

Best cleaning method for projector bulbs on samsung will glass cleaner do any harm?


Do not by any means clean the glass on a bulb or leave a finger print on it. If you dropped a new lamp in the dirt, blow it off with canned air. No amount of dust on the lamp will affect the image. Its most likely burn from usage.

If there is a dark spot in your image it is caused by a discolored reflector, dirt inside the optical path, faulty LCD.

Mar 06, 2009 | Samsung Televison & Video

3 Answers

Overheating


There are contacts inside the Livingstation that make contact with the heat sensor on the bulb. If you take the bulb out you will see them in the upper right corner of the bulb housing in the TV. These can become corroded resulting in a poor connection between the TV and the bulb. A poor connection will make the TV think it's over heating even if it's not. There are 3 contacts in the TV and 3 on the bulb. Clean these contacts with a lint free cloth and some alcohol on both the TV and the bulb, being careful not to let your fingers touch the bulb. If your hands are too big to reach inside the TV, rub a pencil's eraser over the contacts to clean them. When putting the bulb back into the TV, seat as firmly as possible, then tighten the upper right screw first.

Jun 09, 2008 | Epson Livingstation LS57P2 57" Rear...

1 Answer

START AND SHUTDOWN


Hello Mr. Bond.

I believe that you have a rear projection TV where the light from
a powerful halogen light bulb is focused onto a micro-prism
viewing screen through a Liquid Crystal Video Chip.

The light-bulbs have a finite life, degrade with time and eventually
burn out. It is likely that you have a burned out light bulb.

Replacement light bulbs range from about $150 to $250 from
the dealer, depending on the exact model.

The bulbs are somewhat cheaper by mail order from the Internet,
if you can wait that long. Also, some bulbs are available without
the integral mounting bracket, further reducing the cost, but
skilled hands and careful handling is required.

Never touch the glass of a TV light bulb with your bare fingers.
The bulb runs very hot, and residual sweat from your fingers
may cause th bulb to crack and explode.
(use gentle white cloth gloves when handling the new bulb.

I believe that bulb just burned out on its own, and this has
nothing to do with your attempt to connect a DVD player.

On my TV (Sony 60"), a flashing green light indicates a
normal power-up/ bulb warm-up cycle. If the bulb fails to
respond, the TV will detect a bad bulb and shut off again.

Apr 15, 2008 | Toshiba TheaterWide 52HM84 52" Rear...

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