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Optoma HD20 New Lamp Fail

post #1 of 6
Thread Starter 
Hello guys,

I recently had my Optoma HD20 lamp blow on me. Took it out and it obviously was blown... Glass everywhere. I cleaned out the glass and inspected the interior. The little piece of glass on front of the lamp assembly was intact, the color wheel was fine and the fan blades looked good too.

I ordered just the lamp. When it came in, I installed the lamp in the lamp assembly and installed it back into the projector. As I had hoped, the projector turned on and worked great. I reset the lamp time in the menu and let my son play the Xbox360 for a while. When he was done, he turned it off.

After it cooled for a couple hours, I decided it was time to get my game on. Turned on the projector, and instead of the lamp lighting like normal, the HD20 acted as though it was still hot. Green light flashing... enclosure fan running full speed for a couple seconds... (before the lamp blew, it would do that only once then turn on like normal) The projector goes into standby (solid amber light) then flash green again, with the fan blowing... After four cycles, the projector gives a "Lamp Fail" indication. Solid red lamp light, flashing standby light?!?!

I took the projector apart... everything looks and operates fine when the lamp is on. Both fans run fine.

This is a brand new bulb, so I don't understand why its doing this. Unplugging the projector for a few seconds and plugging it back in, the lamp will light up like normal. But after I turn it off for a while... it does the exact same thing and gives the "Lamp Fail" error.

Please help. I've been all over the internet looking for a solution to no resolve.

Thanks,

Xzener
post #2 of 6
This is a shot in the dark but I would check the lamp contacts, both from the lamp to the base and the housing to the projector. If it is not in solid or there is oxidation built up, it could cause a problem with striking that would lead to the issue. Even if everything looks fine, I would apply electrical contact cleaner or industrial alcohol to a swab and clean up the terminals.

Don't let contact cleaner touch anything plastic as it may cause plastic to melt.
post #3 of 6
Thread Starter 
I forgot to mention that I resat the lamp connections. The unit is very clean, no oxidation at all. As I mentioned above, the PJ will turn on normally after unplugging and plugging it back in. I would like to think it is a lamp failure... but it works fine when it lights up. I wonder what kind of lamp failure circuitry it has, and where its located...could it be the ballast??
post #4 of 6
Is this an original or aftermarket lamp?

Some HD20 had other problems with sensors or the ballast, but that doesn't say much. Sometimes you get a problem child while others never have issues.
It's possible that a sensor is going bad and the computer thinks something is wrong when there isn't.

And yes, a lamp can fail at ANY time. Brand new or not. Makes you just LOVE this bulb based technology..... But most of the time it works fine.
post #5 of 6
Thread Starter 
The lamp I bought is the same make and model number. I guess Ive kind of given up on this problem. It sucks that I have to unplug it and plug it back in for it to work, but it is what it is. I'll just live with it until I upgrade to the HD33.
post #6 of 6
Quote:
Originally Posted by xzener View Post

The lamp I bought is the same make and model number. I guess Ive kind of given up on this problem. It sucks that I have to unplug it and plug it back in for it to work, but it is what it is. I'll just live with it until I upgrade to the HD33.

You COULD have gotten a counterfeit lamp. Very easy to do these days.

However, it's a good idea to unplug a projector anyway when not in use. Saves the power supply.
I'd do just that... use it until it dies or upgrade.
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