If this is an LCD, it could be a torn ribbon cable on the red Opitical filter. It's a pain to get to and replace. It could also be a burnt Polarized glass filter on the red channel which is a little easier to replace. Check out www.pacparts.com for parts and prices. It may not be worth repairing.
- 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.
1,white spots appeared on screen,means the DMD is broken,you need a new DMD. 2,the projector running off after only a few minutes,means the Inductor (Sensing element),near the Color Wheel. Use a cotton swab moistened with alcohol to wipe the Inductor.
Have a good day! We supply original projector parts: lamp, bulb, Lcd, Lens, DMD, motherboard, powersupply ... with high quality and competitive price. Jerry China Tel: +86 131788 67858 E-mail: firstname.lastname@example.org Skype: lampdeng.com YM: email@example.com http://facebook.com/lampdeng http://www.lampdeng.com
There is three LCD in the projector red, green and blue. If green LCD make any fault mean line or dot or dots then screen show these line or dot in purple color:
If line is very straight and sharp edges then green LCD is faulty and need to be replaced.
If line is not straight and faded edges then some thing in LCD block so your projector need service
we changed out the light buld... now it works fine.. funny thing was projector was brand new just out of box... you could see first thing there was a brown spot in the center of the buld creating the spot apparently after it heated up.... thanks again
I have a similar issue with yellow pattern on the left and top right of my screen. Took it apart and found the blue lcd had damage that matched the yellow area that was projected. I thought it was the lens but it was the blue lcd .It has gone bad and no replacement. Are you interested in selling the bulb or the whole projector? I have since purchased another projector and am keeping the bad one for spare parts. Hope this helps..Ben firstname.lastname@example.org..
take a look here:
The others, however, have lost portions or all of their blue channels. TI's theory is that the shorter wavelength and higher energy of the blue light apparently causes the organic polarizing material in the LCD to get lightburn much faster. TI showed us a damaged LCD panel that controlled blue light transmission, and there was a large spot in the center that was apparently burned out..."