Revision to Optoma HD20 Troubleshooting
| [summary]Released in August 2009, and is identified by model no. HD20.[/summary] | |
| - | [summary_image| |
| + | [summary_image|467708] |
| [toc] | |
| ''When device is powered on, a dark/blurry area is seen in the middle of the projected image.'' | |
| + | === Lens is dirty === |
| + | |
| + | If the lens is dirty, the image may appear distorted or blurry. Cleaning the lens with alcohol may remedy this. To keep this problem from reoccurring, check the air filter as it may be the cause for the dirty lens. |
| + | |
| === Burning/meltdown of internal lens === | |
| This occurrence is easily diagnosed as it is often accompanied by the smell of burning plastic. The lens will have a distinct black melted spot. This problem requires lens replacement. | |
| - | |
| - | === Lens is dirty === |
| - | |
| - | If the lens is dirty, the image may appear distorted or blurry. Cleaning the lens with alcohol may remedy this. To keep this problem from reoccurring, check the air filter as it may be the cause for the dirty lens. |
| == Overheating == | |
| === Fan is clogged/dirty === | |
| - | If the fan is dirty, it will not properly regulate air flow within the projector which can lead to overheating. |
| + | The most likely cause of overheating is that the fan is clogged/dirty. If this is the case opening up the device and cleaning the fan should fix this problem and cause the fan to work correctly and prevent overheating from continuing to occur. |
| + | |
| + | === Clogged air filter === |
| + | |
| + | The filter may be clogged with dirt/ dust and need to be wiped down to clean out so it filters correctly. If this is not remedied the projector will start to overheat causing problems for the device. |
| === Fan is broken === | |
| If when the device is powered on and fan does not start to run it may mean the fan is broken. This mean the device will need to be taken apart and have the fan be replaced. | |
| - | |
| - | === Clogged air filter === |
| - | |
| - | The filter may be clogged with dirt/ dust and need to be wiped down to clean out so it filters correctly. If this is not remedied the projector will start to overheat causing problems for the device. |
| == Change in Brightness == | |
| If the buttons seem to be stuck it is possible that there is something preventing the button from registering. Remove the cover and check to see if there is any dirt or debris underneath the buttons. | |
| + | === Bad bootup === |
| + | |
| + | Sometimes, the buttons might not work correctly when the console runs into an error while booting up. These types errors frequently occur when the console isn't properly started. To check for this turn off and unplug your console from the wall, then wait about 30 seconds. After the time has passed restart the system. |
| + | |
| === Bad connection between circuit board and ribbon === | |
| Remove the cover of the projector. The ribbon connects the buttons to the circuit board. If the projector was previously dropped it is possible that the connection between the ribbon and circuit board could have become dislodged. Unplug and re-plug the connector. | |
| - | |
| - | === Bad bootup === |
| - | |
| - | Sometimes, the buttons might not work correctly when the console runs into an error while booting up. These types errors frequently occur when the console isn't properly started. To check for this turn off and unplug your console from the wall, then wait about 30 seconds. After the time has passed restart the system. |
| == Device Won't Turn On/No image displayed == | |
To undo the changes made by this version, click 'Revert Changes.' This will automatically restore the previous version of this guide.