20 Most Recent Sony Grand WEGA KDF-50WE655 50" Rear Projection HDTV - Page 7 Questions & Answers

You have a Bad Light Engine/Optical unit block that is what is causing the Blue shadow over picture. Encompas Parts for Price 1-800-638-3328
PTS 1-800-844-7871
UED 1-800-648-6657

You can try replacing the Lamp First,sometimes this will Fix this problem ,but if it doesnt then you are going to have to replace the Optical unit Block/Light Engine PN# A-1084-660-A
Encompass Parts 1-800-638-3328
UED 1-800-648-6657
PTS1-800-844-7871
Mats Electronics for Lamp $99.00 1-800-628-1118

Your tv is an LCD projection one - in which the image is generated by 3 small LCD screens. The blue dots are pixels from the blue LCD that are dead - always fully open.The only fix is to replace the LCD panel and that is going to cost you around $300.

i have found one reference of his occuring with what is known a faulty LVDS cables. inside the set their are cables that take the signal from the main board to optical block. they look kinda like computer monitor cables. you might try reseating these cables first. the notes i found said that replacing the cables fixed the problem...something to try good luck

hello on the front of the tv are 2 little led the 1 at the bottom will flash if the lamps as gone

regards
shaun

First off the mirror in your Sony is not a standard mirror. It's called a "front or first surface" mirror meaning the reflective surface is on top of the clear glass as compared to normal mirror which has the reflective coating behind the glass.The wrong glass will throw the focus off and reduce the brightness...how much I really can't say. Because of this cleaning the mirror is also very tricky...no alcohol or windex. Use an eyeglass lens type cleaning cloth with a light touch. As for the mirror size...try measuring the mirror mounting or "holding clips" area to determine the original size. Another trick may be to ask your local Sony repair center about the mirror size because they will most likely be your only source to order the correct replacement mirror.

It sounds like a defective themal cutoff sensor which is mounted near where the lamp housing slides in. They are well known to fail giving false thermal problems.. Other than that make sure fans are clean and vents are unabstructed. Or could possibly be a lamp. But I suspect the thermal cutoff sensor
Heres its part number 1-910-023-93 should be available at Vance Baldwin or other electronic distributors for about 6.00

Hi I think you have two problems right now one of them is the lamp, if you replaced it 3 years ago.
two the ballast board I think that your ballast has gone bad and it is not sending enough energy to maintain the lamp on and that is the reason it turns off and on.
At this point I would have to say replace the lamp and the ballast and your TV will be working just fine



PLEASE RATE THIS SOLUTION AS I DO THIS FOR FREE !!!

the lamp for this unit is located behind the front psnel. you have to remove two screws from the rear then pull the front off.

Check the site www.TvRepairKits.com for a blinking green light fix. There are two parts that fail in this set. This is fairly common.

How old is your TV have you replaced the lamp already this lamps are made to last a avarge of
2-4 years of use if you have not replaced the lamp before that would be the first thing to do but if you already replaced the lamp recently and have this issue then it will be a BALLAST issue
I found the lamp you need just incase

http://www.discount-merchant.com/SearchResults.asp?Search=KDF-50WE655




PLASE RATE THIS SOLUTION AS I DO THIS FOR FREE !!!!!!

your light engine needs replaced . some sonys are on an extended warranty for light engine replacment check with your sony dealer

Bad Light Engine 1-800-638-3328
also called optical unit block

Three blinks - B over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.

DOES THIS ABOVE issue have anything to do with Cooling FAN?
I cannot hear the cooling fan come on when first turned on like
before THANKS

Thats caused by the optical block. Its not cost efficient to replace.

Sounds like the optical block. check this blog on Sony LCD problems, you may get some help from Sony if your persistant.

http://sites.google.com/site/sonylcdrptvproblems/#TOC-Optical-block-problems-by-TV-model

Hope this helps

Bad light Engine, Calla UED 1-800-648-6657
Encompass Parts 1-800-638-3328
You might can find Part on EBay cheaper?

it will probably be the polarized filters, it will get worse over time