How to clean blue lens in the optical engine - Mitsubishi WD-62531 Projection Television

Hello, this set does not have a "blue lens". A Mitsubishi uses a different type of system than like the Sony dlp's that use a 3 lcd system. the Mitsubishi uses a video chip on the video processing board (the DM board) and a color wheel to produce the image and a lamp to light it up. The chip is most likely the issue a fairly costly repair. tks

Check it on a unused video input---if see reddish color area it is the optical light engine in the unit, a lot of this model had this issue--burn in optical engine lens.

No. If the set turns on and you have a picture, the lamp is installed properly. Most of the time the optical block is the issue. The lamp shines directly into it. If the picture was good before the lamp was replaced, it is possible that that replacing the lamp might have dislodged some micro dust build up internal to the optical block and it landed in a concentrated area causing the red and green lcd panels not to pass light through as bright as the blue giving you a blue spot. Unfortunately the optical blocks are not designed to be taken apart to clean. Replacing the optical blocks are expensive. Most costing in the area of $700.00 to $1200.00 for the part. It also is a major tear down to get to the optical block to replace it. Once upon a time Hitachi had a couple of recalls on their optical blocks for various models. I do not know however if this qualified.
I hope this helps,
Skyassoc

there is problem with lens block.first you have to clean your optical block by clean disc.If your bule ray disc play then ok.if not then need to replaced optical block.

The problem is the light engine, the coded lens blue filter is burned out. It can't be cleaned. You may search on Google or EBay to find a replacement engine, it usually cost $400.00 to $600.00 to get one.

If you used the exact replacement lamp then your tv has a defective light engine, call mitsubishi and make noise they might be willing to help with the cost- around $800 to $1200

The Problem is your Optical Engine. The lense inside the Optics over time heats up and spots appear. In your case its the the blue lens inside the optical engine.

That is because of a dirty or defective lens. When lens is dirty, the unit may still operate on regular CDs and DVDs and not be reading BD.

Try first using a lens cleaner for Blue Ray: Maxell 190054 Blu-Ray Lens Cleaner

If that does not work, the unit may be disassembled, and lense cleaned with q tips and isopropyl alcohol or cleaning solution. See below:

How to Clean the Laser Pickup Lens on your DVD Player


How to safely clean a DVD lens?


Clean DVD lens, or replace player?


Clean CD or DVD ROM lens with a brush?


Cleaning your DVD drive


How to clean a DVD player


How do I clean my DVD player optical lens isoproponol alcohol

Being this a blue ray unit , I would suggest calling support instead of disassembling the unit by yourself.

Regards

The blue spot on this is dust on the blue lcd lens. You can not get this off of your lens and you would need to replace the optical engine. Part for this is about 800 dollars and that particular set has to be dismantled from the front. It is a optical engine that takes a little while to do 1+hour and I do these repairs all of the time.

Good luck on your decision
josh

There is no alignment of the lens because the optical lens is fixed. If he removed the lcd panels then there may be a problem. You may want to check to make sure there is nothing on top of the optical lens or the mirror inside the mirror block assy wasn't damaged. If he damged the optical block or lcd panels then an optical block may need to be replaced. Very costly. Good Luck