Question about Optoma HD72 Multimedia Projector

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I have taken apart my optoma hd72 to replace the lamp driver board. I have loosened the screws on the main board to remove it so I can get to the lamp driver board underneath but its seems to still be attached to something underneath. Is it a riser boad plugged into a slot?

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  • Anonymous Mar 18, 2014

    lamp driver replacement hd72

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The board under the mainboard plugs into the top board like a cartridge. You have to disconnect all the cables from the mainboard then pull up on board to detact it from bottom board then you should see lamp driver in the back. Make sure hands are clean from static. Good luck.

Posted on Dec 29, 2008

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Optoma hd72 ballast


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Feb 02, 2014 | Office Equipment & Supplies

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My Optoma HD72 projector operates for about 1 minute and then shuts off. I kept my old bulb around "just in case", I've replaced the bulb with the old one and have the same problem.


The problem is not over-heating. The Optoma HD72 has a known problem that Optoma won't advertise. The lamp driver is faulty. They simply have to replace the lamp driver. I purchased a spare lamp with my original purchase. I had the exact same experience as you at around 1200 hours on the lamp in ECO mode. I used the spare lamp. Same thing happened at about 1200 hours. I had a friend at Optoma. he confided to me the problem. I sent it in and they replaced the lamp driver at no charge. I got another 800 hours out of the first lamp and am now using my second lamp and have about 600 hours on it. The pic quality is so good with this projector (used Digital Video Essentials to calibrate) that I'll just order a bare lamp or two and use the existing lamp housings when I need a new bulb.

Apr 12, 2010 | Optoma H30 Multimedia Projector

1 Answer

Lamp flashing, hd72 projector


In most projector menus there will be an option to reset the lamp timer, it's usually under the "settings" area of the menu. Try resetting the lamp timer and the light should stop flashing.

Jan 17, 2010 | Optoma HD70 DLP Projector

3 Answers

Hey my optoma hd65 bulb blew so i replaced it and when i powered it back up i received the fan lock error


the lamp probably blew because the fan stopped. if the lamp can't cool down, it blows. you'll have to find out which fan and replace it.

Nov 07, 2009 | Optoma HD65 DLP Projector

2 Answers

Optoma hd72 lamp driver problem


I have had this manufacturer defective HD72 unit for 4 years now. So let me break down this issue as I have experienced it for 3 years.

1. The issue is with the lamp driver(bulb power supply), replacing it will fix the issue, but the new lamp driver you install is also defective and will eventually go out.
2. Replacing the bulb will place less stress on the lamp driver and will temporarily fix the issue as well (this is what I did first because the warranty department, when I was under warranty told me this was the issue but the bulb was not under warranty at the time).
3. I have my unit mounted on the ceiling, upside down. For some reason, turning it right side up extended the life of the lamp driver by 8 months. I have no idea why gravity makes a difference, but it does, try it, it is the quickest/cheapest/easiest thing to try. I read on a web site that it would work, and I thought it was stupid, but it actually did work.

The real problem is that this is a manufacturer defective projector which they do not have non-defective parts to sell you even though they have known about this issue for at least 4 years now, they have moved on and want you to buy a new unit that is not defective instead of fixing this one.

Aug 07, 2009 | Optoma HD72 Multimedia Projector

1 Answer

Lamp light is solid orange/red; No Image on screen when pj on


Sounds like bulb to me best way to check is take it to a service centere and they will use a replacement or test bulb to find out for you , it may not be your bulb it may be your ballast circuit . ... regards Vortash

May 10, 2009 | Optoma HD72 Multimedia Projector

1 Answer

The optoma hd72 projector lamp goes out after 30 seconds.. the big game is this weekend... what can I do?


I had this exact same problem. I have changed bulbs gotten 1000 or so hours from new bulb, changed the lamp driver and gotten about 600 more hours from new lamp driver. New lamp cost me $350, lamp driver cost me $120. Then I read on a page to try and flip it right side up, because I had it ceiling mounted upside down. I flipped it right side up and it works perfectly and has been working perfectly for 2 months now. I know it sounds stupid, but it actually worked for me, and it costs you nothing to try it. For some reason, gravity effects this unit.

Jan 31, 2009 | Optoma HD72 Multimedia Projector

1 Answer

HD72 - LAMP GOES OUT IN 30 SECONDS


The projector is sensing the amp draw from the bulb and shutting down due to out of spec draw...replace the bulb.

Oct 21, 2008 | Optoma HD72 Multimedia Projector

1 Answer

Short picture time when starting Optoma HD72 projector


Mine did the same thing. The bulb is used up...replace the bulb. That fixed mine, working great again.

Oct 05, 2008 | Optoma HD72 Multimedia Projector

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