Where is the projection lamp in an LG DLP TV, model RU-44SZ51D? How easy is it to install myself?

Probably bad lamp.

push the MUTE button on your remote control at the same time as pushing the OKbutton on your tv set . Hold for at least 10 - 15 seconds . You should now see a page on your screen that will tell u total lamp hours

Problem is either you need to replace Lamp or your Lamp Fan is defective. For Lamp Call Mats 1-800-68-1118

Could be your Ballast Board that fires up lamp or Fan is bad that cools Lamp there is also a Fan mounted up under Light Engine if it stops running set will not come on. CK Fan Behind lamp first if it is OK then replace Ballast Go to E-Bay for Best Deal on that part .

44 inch lg dlp hdtv no picture or sound press power button standby light turns yellow and then back to red

Bad Light engine call UED for price on rebuilt one if they have it!1-800-648-6657

It can if you lamp has exceeded 8000 hours.

it sounds like an adjustment is needed/call for service and a est.$

Is it an LCD or DLP? The Model below suggests it is an DLP. Sounds as if you have the dreaded light tunnel collapse common to all LG DLP TV's. Inside the light engine there is a square tube made up of four mirrors. These mirrors deform and crack with the heat of the lamp. They fall down over the light aperture and cause a shadow of varying degrees. It is fixable now at a realistic price ( used to have to replace engine) as LG have made the parts available. It would take a competent tech around three hours to complete or if you are technically minded you could do it yourself. I hope this helps. Good Luck.

To do this, press the ENTER button on the TV and the MUTE button on the remote at the same time. After 5 seconds the screen should come up and it will read "Lamp use time...Total lamp use time ....lamp reset" Press the center button on your remote (the circle button right in the middle of the four directional buttons) and you will be reset to -0- again. Your orange light should now be off.