Image brightness fluctuates from normal, to bright. Thought over heating was the cause, as the filters were very dirty. I disassembled and thoroughly cleaned entire projector, and replaced both filters. No change, very irritating, Help me please!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Thats usually caused by the front small mirror which gets dusty and the image will get very dull and washed out. Cleaning the small front mirror will restore the clarity and bright colors again. use just a damp cloth with water then dry thoroughly. If you dont know how to gain access to the small mirror up front you can get the service manual for that model emailed from the following link, It has the disassembly instructions. http://servicemanuals.vstore.ca/product_info.php/pName/wd52525-dlp/cName/mitsubishi
Most likely cause of your trouble is dust on the small mirror inside you set. Your DLP set has 2 mirrors not including the DLP chip itself which has about 500,000 tiny mirrors. The 2 mirrors reflect the DLP chip image to the screen you view. The first is the main suspect it's about 4inches by 7inches. It's mounted on the bottom center facing backwards. This mirror faces slightly up and somtimes after time dust, smoke, dirt settles on it . The second fills the space of the entire back of the cabinet but it faces down and takes alot longer to get dirty. The compartment is sealed but dust seems to find it's way in. If you remove the screws that secure the screen assembly from the top , sides and bottom. Make sure to have a friend available the screen assembly is delicate when it's not mounted to the cabinet. You can remove and clean the mirrors. These mirrors are glass and you can use glass cleaned. Don't use glass cleaner on the screen it's plastic. You can clean it if necessary with plastic cleaner only. Probably not needed. Good luck.
There is a brightness setting on your keyboard on ours it is Fn F6 to turn down the brightness. Just look for a sille "sun" symbol with a downward triangle symbalizing down. Try this and get back to me if it does not fix the problem we can try something else
could be one or more of three things.
1.could be the crt itself.(sony had a bad bunch of crts for this model)
2.could be the vertical ic on crt board.
3.could be the focus block
in my experience solutions 2 and 3 are more common....
Normally, the screen control being up a little to high, would cause this problem.
If no one has worked on this unit when it started may be a sign of something else, for example, the 200 volt line may be running a little low.
Check the brightness and contrast for starters and if that doesn't help, then, the screen control would be my next step.
Hope this helps.
This sudden changes in brightness are caused by the change in voltage inside the tv,not in the outlet in the wall but inside the set,The changes are an indication something is going wrong and it needs to be corrected,the set does have a brightness limiter but it only works when the set wants to get brighter than normal,You need the assitance of a servicer to correct this problem.