Question about HP Pavilion MD5020N 50" DLP HDTV

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MD5880N replaced bulb and worked for 2 hours now nothing

I replaced my lamp after my previous lamp died after about 3 years. Installed the new lamp and everything worked great for about 2 hours and then the tv died. Initially the bulb and temperature light came on but after unplugging and restarting it the blue light comes on like it is trying to fire up but nothing.

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Place heat shielding around the lamp to prevent overheat; use cooling spray (freon) to cool any chips or, circuit boards near the lamp as you attempt to start the set check the lamp for the correct serial # voltage etc.

Posted on Aug 02, 2009

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Posted on Jan 02, 2017

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4 year old replacement bulb finally gave out & exploded but the bulb I put in to replace it also exploded after about 2 hours. Is this possibly just a problem with the second bulb or something else?


First thing is that you cannot touch the bulb with bare hands. You have to wear gloves. The other thing is that you have a ballast in those and if it goes bad then the wrong voltage could be coming to the bulb. The last thing is they are fan cooled and if the fan is not working the bulb gets too hot.

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I've just replaced the lamp on my Panasonic PT-LM2E projector and it will switch on but no light comes out. The previous lamp blew in the projector after around 2000 hrs. The indicators are as...


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Aug 08, 2011 | Panasonic PT-AE900U Multimedia Projector

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I have two issues with the pb8220 1. How do you reset the bulb hrs when a new bulb is installed? 2. Projects for about 10 seconds then goes black. The red bulb light comes on when the screen goes...


Reset the lamp hours as follows.
Press the Exit button on the projector for 3 seconds to display the total used lamp time. Press the MENU button on the projector during the lamp hour message. An adjustment message will appear. Press left or right arrow to reset lamp hours or press EXIT to leave.

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I turned on my tv and after about 30seconds is sounded like a light bulb blew and the tv went out. whenif is on now if has a crackling in the back intermitently and when you look in the back grill you can...


The tv projection lamp has not been change in this tv the last 1/1/2 or 2 years and been on an watches 4 or 5 hours a day?Yes,than the projection lamp life is over.Require a new projection lamp.

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The power will not turn on and the power LED is flashing red.


PT-50LD54 is an LCD rear projection TV with a consumable bulb that wears out normally after 2-5 years of use.

Most likely you need a bulb. That is first step in any troubleshooting for that tv. Check out Panasonic Gallery to identify lamp and replacement bulb.

Changing bulb involves removing the lamp assembly and replacing the bulb in the lamp assembly. Like doing a puzzle. Requires philips screwdriver, pliers and patience. Don't have jam on your fingers when you do it.

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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.

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1 Answer

HP Pavilion md5880n TV new lamp, left red light


I had the same problem the bulb was good but no power it was the transformer 975.00 under warranty from brandsmart. It worked for 90 days then the mother board went bad it cost 1000.00 they won't fix it .they gave me 1098.88 for a new one .Im gonig to sell mine for parts . I also have the stand for my tv also .

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1 Answer

New bulb installed and it takes 10 plus minutes to start


Exchange the lamp under warranty...
You've tried almost everything else.
It's not that uncommon to experience "infancy failure" with a brand new lamp.

If the problem persists with the replacements replacement then I would suspect the Lamp power supply (Ballast) is failing.

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HD72I WORKS FOR 30SECONDS AND THEN SWITCHES OFF


I had the same problem with very few hours on the lamp. Sent it back to the factory and they said the fan was overheating causing the bulb to shut down. They replaced the fan and the bulb for free under warranty. I noticed before I sent it the projector was putting out an incredible amount of heat. MUCH better after fan replacement.

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Can you tell me why the optoma HD72I lamp will turn off after just a few minutes of running, the lamp is still fine


I have the same problem. I got a new bulb and it worked for about 1000 hours, then the new bulb started having the same problem. So, I was about to buy another bulb, and I figured why not try the original bulb. IT WORKED! For a couple weeks... Then it started doing it again. Obviously there was nothing wrong with the original bulb, and there is nothing wrong with the new bulb, but I have 2 bulbs that do it now. So, is there any way to just tell the projector run the bulb till it actually dies and not turn it off because it thinks it is about to die.

Aug 01, 2008 | Optoma HD72 Multimedia Projector

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