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KDF-60WF655 Blue blotch
Posted: Tue Jun 09, 2009 5:49 pm
by Maymoon
This tv has the dreaded blue blob along bottom, right side and a huge light haze in center. If light engine problem do you have possible solution?
Merci
Re: KDF-60WF655 Blue blotch
Posted: Tue Jun 09, 2009 7:42 pm
by Jake
thats a problem with the light engine.
im not saying this is the one that you have, but this is only so you can have an idea.
The main problem is with the LCD panels, with time this panels they wear off, they start losing color and they start doing this blobs/distortions on the pictures.
How to fix it, you have to buy the light engine ._.
At the moment i dont know other way to replace the LCD panels other than buying the light engine.
Regards
Re: KDF-60WF655 Blue blotch
Posted: Tue Aug 04, 2009 6:36 pm
by Rivers85
//Light Engine malfunction
The light engine in your Sony LCD projection TV works with three color chips (red, green and blue). Inside the light engine the beam of light passes through several filters separating the beam into three and then the mirrors redirect them into each color chip, then all three gather at the prism which sends the picture into the screen
Here you'll see the schematic of the LCD light engine:
http://www.oerlikon.com/ecomaXL/index.p ... _projector
Through time the heat of the beam will start to ware off the chips until they get burn marks causing colored blobs, blotches, blue haze or stationary scribble in the screen
//Sony Optical block Article
Here you'll learn more about these symptoms:
http://sites.google.com/site/sonylcdrptvproblems/
//LCD Color Chips
- LCD Color Chips.JPG (34.66 KiB) Viewed 3376 times
//Damaged LCD Color Chip
- Damaged Color chip.jpg (6.67 KiB) Viewed 3376 times
//Yellow blob caused by a defective color chip
- Yellow Blob.jpg (44.09 KiB) Viewed 3376 times
svirwrve
Posted: Wed Nov 16, 2022 10:08 am
by Wimlok