This could be tricky if you are not technically inclined remove the screw on the bottom of the projector four smaller size and four bigger size and 2 at the bottom near the connectors remove the lamp cover and the lamp itself then remove the focus ring and zoom ring then lift the cover from below near the lens slowly take care not to damage the plastic lock underneath it take sometime but be patient you are almost there hope this be of help cheers
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Well, I'm having the same issue and I just replaced my bulb. What the manual says is it is getting too hot (obviously). Make sure nothing is blocking your air vents both in and out on the projector. The manual suggests using a vacuum to **** out the dust but I imagine that wouldn't help much. Taking it apart might be a good idea to get a full clean out. If you've cleaned it and the vents are clean and it still clicks off for temp reasons there could be a fan malfunction. Replace it if it's not working. If it is working you can turn the fan speed up in your options and this should help. It is recommended in the manual if you're above 1500ft. The only other thing it could be is faulty electronics, and in that case I'm not sure what you could do. Goodluck! Fred
Before replacing your bulb, fan or any other component try first cleaning your optoma realy good!! HD70 doesnt comes with any kind of filter so you can imagine the amound of dust can be. The most importent thing is to blow away any dust from your color wheel +the sensor attached to it .
for farther troubleshoting clean your fan's. there are 2 fan's insinde the HD70.
probably the most problems will be solved by cleening the color wheel!! if the problem is not solved ,chack the lemp and the fans if they work properlly.
Open the bulb replacement door, pull out the filter and spray it with dust off. (compressed air) Check the fan, clean it out as well. Should be fine after that. if you need further help, post a comment and i will help some more.
It sounds like it is overheating. Are the fans all working? If so, try opening the casing and blowing all the dust out with a can of air from Staples/Office Depot. If the fans aren't working you may need to replace them.
I have changed the bulb on my LG projector recently. I found the rotating colour wheel to be full of dust. Upon opening the cavity where the light is redirected and reflected onto the imager, I saw all mirrors also had a layer of dust. I don't think it was so dirty that it affected the brightness of the image, but I cleaned it anyway using an earbud. I cleaned both sides of the color wheel as well. You need to be careful in working with the optics of the projector!