What is an optical block - ViewSonic N2750w 27 in. HD-Ready LCD Television

Depending on model number of set you can check You Tube for video instructions and or several other sites also have this for free.

GOOGLE the exact model number with something like Optical block replacement of ......

You are correct in thinking optical block, but here is the good news. For the cost of a service call a tech can come out with a jig and reprogram your optical block and the problem should go away. It may be worth the cost to fix. Unlike throwing away a 900 dollar optical block.

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

This problems is the optical engine block problems.Very expensive part to replaced and job by the tv Tech.If this tv been in used like for about five years or more,my opinion just better put ur money in for a new tv.The earlier tv design for the optical engine block is not that great of a design,will happen again,just don't know when that it.

optics unit block bad

Disconnecting wiring from power supply block

This step may be optional, if power supply block must be transferred to purchased replacement optical block. Undo the blue plastic-coated wire holders to release the two wire bundles. Disconnect the connectors shown with the dotted lines in the photo below. One, which presumably provides power, is disconnected directly from the power supply block, and the other is a regular wire connector.
Disconnecting the optical block fan wires

Disconnect the optical block fan wire connector:


Disconnecting the wiring from the optical block circuit board (C Board)

Carefully pull up on the three wire connectors directly connected to the top of the C Board:


Final wire disconnection from C Board

Remove the screw and gently pull the blue ribbon ribbon cable out of the side of the C Board:


Your optical block should now be entirely free of the TV and ready to ship. I recommend adding specific protection for the projection lens, then sealing the whole unit in a bag to prevent infiltration of dust or packing materials, then carefully packaging it with substantial padding.

Removing the projection lamp (in cases where you are installing a purchased replacement optical block)

Loosen the hex screw next to the projection lamp housing, and pull the lamp and housing outward from the metal clips.

Picture of replacement optical block for KF-60WE610 (courtesy John Setar)

Here is a picture of a replacement optical block for the KF-60WE610. Note that some parts of the old optical block need to be removed and installed on the replacement block.

Light Engine and Optics Block is same thing, main part of DLP TV and multimedia projector to produce and project image on front screen.
Few manufacturer call it light engine and some says it optics block.

It is definitely a bad optical block. Sony was offering an optical block replacement under warranty until June of this year, but it has ended now. Ballpark estimate is $700 to $1000 to have the optical block replaced.

Sony extended Optical Block until 06/302010. Will re-imburse your if you replaced the optical block out of your own pocket


from http://esupport.sony.com/US/perl/news-item.pl?news_id=277

Certain 2006 Model Year SXRD Television Extended Warranty Information – Optical Block
Posted: 10/21/2008

Models: KDS-50A2000, KDS-55A2000, KDS-60A2000, KDS-R60XBR2, KDS-R70XBR2
Aspart of the Sony commitment to quality, Sony is announcing that it isextending the limited warranty (parts and labor), in the United States,on the optical block of the above-referenced 2006 model SXRDtelevisions until June 30, 2010, regardless of purchase date. For anycustomer who requires repair of the optical block on one of theaffected models, Sony will cover the cost of the optical block repair(parts and labor) at no charge through June 30, 2010. This extendedwarranty does not apply to the replaceable projection lamp or the otherparts that may be used in the televisions.


Sony is also announcing that for any owner of these modeltelevisions who paid out-of-pocket expenses on or before November 30,2008 for an estimate or repair service to replace the optical block,Sony will reimburse the customer by mail for the cost of the opticalblock and the labor expense to replace it, subject to certainconditions. To receive reimbursement, please follow completely thedirections on the claim form for reimbursement; all claims must be postmarked by January 31, 2009. See the claim form for complete terms and conditions.

All other terms of the Sony limited warranty continue to apply. Sonyutilizes a network of hundreds of qualified independent third-partyservicers to perform in-home television warranty service. Sony, throughits authorized servicer network, will endeavor to repair your setwithin 30 days of your first contact. For diagnosis, warranty service,or if you are not provided a repair within 30 days, please contact Sonyat (888) 649-7669.

hi there how much you want for the optical block thanks [email protected]