My Optoma HD 25 LV projector was making a lot of noise so I took it apart to try and clean the fan. When I put it back together, the noise went away, but the image became tiny. What used to be a 100" image is now 12". I've looked at the zoom lever and it looks ok. Any thoughts as to what I may have done and how to correct it. Thanks, Brian
SOURCE: loud fan
if the fan sound is very loud, there might be 2 probabilities- 1) you haven't connected it roperly- 2) the fan is losing its life- so its better to replace it as you can get it for lower prices everywhere..!!
SOURCE: dvd10 optoma projector makes a loud noise
Hi, I'm not sure if it's the same problem I had..
I had it on picture mute, for maybe 15 mins, which may not have been a good idea. While it was muted, it made a sparking sound, and then a very loud grinding noise. When turned off, the lound noise stops, and the fan continues as usual for about a minute. As soon as it's turned back on, the grinding noise is back. But the logo seemed to display ok.
I took it in for repairs, and they said they needed to replace the color wheel to fix the problem.
optoma dv10 mode
SOURCE: putting the bobbin housing back together
Found your problem while I was trying to solve mine. I can solve yours. Here is the page from my manual about how to remove/replace bobbin housing. I hope you can make this image larger so you can see it clearly. We're limited as to the size of the file we can upload. 
SOURCE: I have a poulan Pro 295 Chainsaw, I took apart the carb.
It appears to be an isolator or buffer #34, but I do not think it would have anything to do with not starting.
I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae
SOURCE: How to connect the Optoma Pico PK-101 DLP to a laptop
You have to buy a 17€ converter.... here on my website, is a diagramm on the B chapter that explain a lot.
http://shadar.spacequadrat.de/?p=121#more-121
Here is the link to buy one converter
http://shop.ebay.fr/i.html?_nkw=pc+VGA+to+converter&_sacat=0&defsort=15&LH_BIN=1&_sop=15&_odkw=pc+to+converter&_osacat=0&bkBtn=&LH_ClassifyToggle=0&_trksid=p3286.m270.l1313
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