Question about LG RU-52SZ51D 52" Rear Projection HDTV-Ready Television

2 Answers

How to replace lamp and reset timer

I bought my bulb at for $169.00 total including shipping. (cheapest I found on the web and it is the exact OEM bulb that came with the tv). Came in just 2 days.  Unplug TV and remove the plate on the lower right side of TV (only 2 screws).  Once plate is off, you will see a the bulb cage, it will have 3 screws.  Remove screws and pull out the cage with the little wire handle attached to it.  You will now be looking at the back of the bulb. It will have two insulated wires running out the back of it that run to the right and back to where they plug into tv.  At the plug you will see two small black screws.  Remove these screws and unplug the two wires.  (Note: it is best to use a small magnetic screwdriver as it is easy to drop the small screws down into tv and they are hard to retrieve). Now remove the three screws and plates that hold bulb into place.  Old bulb is now out, so just reverse procedure to replace with new bulb.  Do not touch new bulb with you fingers directly as the oils from your skin will create hot spots on bulb and make it burn out prematurely.  If you do touch it, you can clean with isopropyl alcohol and a soft clean cloth.  If there is a lot of dust in the housing, clean this out first.  If the fan is dusty also, now would be a good time to clean this also.  The fan panel is on the back lower left of TV, just behind the bulb housing.   Once done plug in TV.  Hopefully you now have a picture.  Now all that is left to do is reset the lamp timer so that the orange light on front TV panel goes out.  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.
I went through so much crap with LG over this.  They clearly don't have any intention on letting there do-it-yourself customers save some money.  I'm guessing it would have cost me $300-400 to have a tech do this, maybe more.  Before I discovered how to reset the timer, I called the Service Center and they were going to charge me $100 to do it for me! They claimed it required a "Special Service Remote" to access the lamp timer menu. Of course LG could not tell me how to do it over the phone.  I am never buying an LG again.  I have two 50" plasmas and this 52" DLP and I have had problems with all of them.  Hope this helps someone and saves them the time and aggrevation I had to go through just to change a stupid light bulb.

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  • Lori Jan 16, 2013

    Got the bulb for $79.95 total, on amazon and received it next day. I followed your instructions which were perfect! You saved me $500.00. A few years ago I paid $633.00 for Best Buy to do the same repair. Your the BEST!!!!!



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To reset on the LG MODEL RT-44SZ60DB:
Press OK button on TV and MUTE on control > operation is displayed on screen
press ok to reset

No need for LG to reset this lamp.

Posted on Jan 27, 2009


Best instructions I have found! My bulb is on its way, Thanks for the guidance!

Posted on Jan 28, 2008


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Hi there,
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Posted on Jan 02, 2017

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