20 Most Recent Optoma H30 Multimedia Projector - Page 2 Questions & Answers

the burning could be the dust on the inside burning off. blow the dust out with canned air. then check to see if the fans are spinning. after that, it's the ballast/power supply.

good news is that that is almost all the big money items. the power supply would be the last. by the way, buy sharp.

sounds like you possibly have an off-balanced fan issue (one of the blades broke off). check the fans and replace as necessary.

use "frequency" to make an adjustment. then make sure your resolution matches.

it could be a bulb problem. Projector bulbs have an estimated number of hour (in thousands) life span. If you think it had served you that long, then fair enough and try to buy it a new bulb.
Another cause is inconsistent power flow. Please use a Surge Protector or an AVR and plug your projector there to stabilize the power flow. Please do this first before attempting to buy a new bulb

Hi there...well, you've done some useful troubleshooting on your own! Sometimes, different equipment gets "finicky" about syncing properly. Most of the time, turning on the projector first and then immediately turning on the laptop will work. You didn't say what type of "pc" you were connecting. Are they both laptops or a desktop, etc.? Try this, using ONLY the monitor cable that you know works, connect the pc that doesn't display. Lets try to eliminate variables that'll drive you crazy!
Assumption here: if you are using 2 laptops, make sure that the one that doesn't display is set properly(i.e. usually an "alt F4 or some such key combo) to display to an external source. The function key will have a small TV screen symbol on it. Remember, "normal mode" is *laptop only* for the display. Next is "laptop + external display", and finally "external display" only. If you press the combination again, you'll return to the "laptop only" mode.

Very odd problem. Depending on the hours of the projector it could have some glass in it that over heated. Contact Optoma directly, my guess is they will work with you.. good luck

sounds like it's overheating. Clean out all the dust from it.

Clean out all the dust from it, it sounds like it is overheating.

Hi, My name is Doug Stanko.
I had the same issue and fixed the problem.

((I have the HD 70 which is very similar to your unit.))

All you have to do is take a few screws out..... and blow out the inside VERY well with pressurized air. I have a compressor... and I set the regulator to 50 psi. But the KEY IS TO have the covers off so you can get between the circuit cards and blow them out. They were incredibly dusty. Even after I blew through the side vents.
I agree with all of you that say it is overheating. You are right. There was so much dust on the fan blades them selves... I'm suprised they were still spinning at all.
And like most of you... first I bought the $300 dollar bulb... put it in and 10 minutes later it was doing the same thing flashing through the colors. So trust me.
There are 4 screws on the back. Take these out.
There are 2 small nuts on the back around the VGA input. Take these out.
There are about 5 screws on the underside (think one was on the bulb changeout portion). These have long copper colored bars that go all the way from top to bottom.
All these have to be removed. Then you can take it apart. AND I PROMISE YOU WILL SEE TONS OF DUST ALL OVER.
Make sure you blow out the parts between the circiut boards AND the fan unit.
Put it back together... and remember to make sure that little latch on the bulb change cover makes the click sound ( it is a switch that must close or the unit will not power back up )..... and it will work great again.
No need for a huge fan next to it. Although I will admit that is an excellent idea.
I did this 3 weeks ago and have been watching it with no issues.
If you do not feel comfortable taking the screws out yourself..... I would take it to your local TV repair store and just ask them to take the covers off and blow out all the dust... and give it back to you. No troubleshooting... no repairs... no replacements... just blow it out.
I was an electronic technician in the US Navy for 10 years... Now I work at a nuclear power plant in Illinois. BUT I PROMISE with a good phillips head screw driver and a small crescent wrench you can do this yourself.
Good luck and you are welcome. I know how frustrating this issue is. But this is the fix.
Doug

Hi, My name is Doug Stanko.
I had the same issue and fixed the problem.
All you have to do is take a few screws out..... and blow out the inside VERY well with pressurized air. I have a compressor... and I set the regulator to 50 psi. But the KEY IS TO have the covers off so you can get between the circuit cards and blow them out. They were incredibly dusty. Even after I blew through the side vents.
I agree with all of you that say it is overheating. You are right. There was so much dust on the fan blades them selves... I'm suprised they were still spinning at all.

((And I would not be suprised if your fan is no longer spinning at all. Try this fix... but if you do not hear the fan blowing air through your unit after you have cleaned it out... get a new fan... very cheap part... and you will know how to take it apart after you read the rest. Good Luck.))

And like most of you... first I bought the $300 dollar bulb... put it in and 10 minutes later it was doing the same thing flashing through the colors. So trust me.
There are 4 screws on the back. Take these out.
There are 2 small nuts on the back around the VGA input. Take these out.
There are about 5 screws on the underside (think one was on the bulb changeout portion). These have long copper colored bars that go all the way from top to bottom.
All these have to be removed. Then you can take it apart. AND I PROMISE YOU WILL SEE TONS OF DUST ALL OVER.
Make sure you blow out the parts between the circiut boards AND the fan unit.
Put it back together... and remember to make sure that little latch on the bulb change cover makes the click sound ( it is a switch that must close or the unit will not power back up )..... and it will work great again.
No need for a huge fan next to it. Although I will admit that is an excellent idea.
I did this 3 weeks ago and have been watching it with no issues.
If you do not feel comfortable taking the screws out yourself..... I would take it to your local TV repair store and just ask them to take the covers off and blow out all the dust... and give it back to you. No troubleshooting... no repairs... no replacements... just blow it out.
I was an electronic technician in the US Navy for 10 years... Now I work at a nuclear power plant in Illinois. BUT I PROMISE with a good phillips head screw driver and a small crescent wrench you can do this yourself.
Good luck and you are welcome. I know how frustrating this issue is. But this is the fix.
Doug

No power at all most likely means a circuit board is cracked. A repair of this nature will have to be done in a shop.

Hi

Try to change the cable from source to your projector. or make sure everything is connected properly.

Hope this help

i don't know if this will work but..... I have an Optoma h27 and we were having problems with the color and ours is mounted on the ceiling in inverted also; and after two years we started having color problems, come to find out that on the menu there is a option for high altitude and that had been turned to the "off" position (probably by our kids resetting all the options and not turning this one back on)..... after taking it to a tech that cleaned it for $97.00 and said there was no problems he could find, we played around with the remote/menu and came across this high altitude option and when we saw it was on the "off" position, we put it to the "on" position and another fan inside the projector came on and that helps to keep the inside of the projector cool at all time and helps from the color becoming weird..... Try this on yours and hopefully that will solve your problem.

It sound like either the connection IS bad or the projector is bad. Try taking the projector back for another, it may be defective. Other wise it sound like the bulb is burning out but not likely after only 2 weeks.

Well we found the problem……. (but no thanks to the technician who charged us $97.00 to clean it and say there was no problem….) In frustration and playing around with the menu on the projector, we saw that there is an option for high altitude and when we click on that and seen that it was on the “off” position we selected for it to be “on” and guess what? Another fan came on and apparently that fan run constantly to keep it cool inside the projector….. must have something to do with mounting the projector on the ceiling…now the color is back to perfect again...thank god.....we have our theatre/sports room back.....
(I can only guess that my kids hit the reset button on the menu to reset all setting and it turned the high altitude off…) Hope this helps anyone else having similar problems…..

Most DLP projectors have a colour wheel. It's usually hard to get at, and you may have to actually remove everything including the optical block from the projector to access it. This wheel turns on a motor just like a fan, and if it gets dirty it can act up just like a fan.

They are expensive to replace, so you might want to try taking it apart and cleaning it out. Add a small amount of 3 in 1 oil to the motor if you can.