Question about Sony Grand WEGA KDF-50WE655 50" Rear Projection HDTV

1 Answer

Blue blotch on bottom of screen ?

Whats wrong

Posted by on

  • jomarjm Jan 15, 2009

    I have blue dots over the entire screen and a blue thick line at the bottom along with blotches.

  • Shahid Electronics
    Shahid Electronics May 11, 2010

    Let me know exact model number of TV to check any solution.


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 56 Answers


You need to contact Sony on this one. They have had a series of defective light engines in their DLP sets and this is one of those models. They will undoubtedly instruct you to take it to an authorized service center. However, if, as in our area, there is not an authorized servicer they will give a special autorization to a qualified shop as they did in our case. We have seen several of these.

The bad light engine is typically characterized by color blotches and color speckles on the screen. The bad units we have have (not coincidentally, me thinks) have all had problems with the blue.

The customer service line is 1-800-282-2848. Remember that you always catch more flies with honey than you do with vinegar. You are trying to get them to pay for something that they are not under any obligation to. Be firm if necessary, but be kind. They should help you out.

Good luck!

Posted on Jan 15, 2009

3 Suggested Answers

  • 899 Answers

SOURCE: Black blotch on bottom of screen

if you can take the screen out , then use some dish soap,rag and water to clean the black blotch

if that don't work you may need to use something a little stronger , but not enough to hurt the screen
please rate a fixya and I'll be happy to assist you in the cleaning process and care of the screen

Posted on Nov 07, 2008

  • 3 Answers

SOURCE: I have blue blotches on my tv screen that gets

I have the same exact TV, with the same problem!
I found out that Zenith has a class action litigation open thru July 2010
Your Optic Light Engine is Defective and Zenith has to replace it for free
Or give you a new 50" Plasma or 44" LCD.
Here is the link with all the details **
Call the service center and let them know what your problem is and that you know
about the litigation. They will have a tech call you and troubleshoot it over the phone.
Then they will order the Light Engine and have a Tech come to your house and
replace it. It will cost you nothing!!!

Posted on Oct 28, 2009

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Blue light

You cannot. The blue blotch is a sign that your optical block is going out. This will only get worse. The optical block will need to be replaced. This is not cost effective.

May 17, 2012 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

Panasonic DLP TV has huge yellow blotch covering most of the screen

SET uses a optical light engine--lamp which is quite hot shines into the engine---blue is first to get the light and heat and is usually first area in the lens and baffles to get damaged(loss of blue leaves red and green which equal a yellow screen.

You have a damaged light engine.

Apr 23, 2012 | Panasonic PT-43LCX64 43" HDTV

1 Answer

I have a sony KF-60WE610 bought in 04. This summer it started to get the blue blotches on the lower corners and spreaded to the bottom of the screen. The Directv service man said it was because of my...

i had the same thing and I called sears they charged $99 to come out and gave free estimate. cost me $300 to fix it but thats better than buying a new one. works great now better picture than before

Dec 19, 2010 | Sony Grand WEGA KF60WE610 60" Rear...

1 Answer

Blue Blotches on the screen

Remove the front screen and look directly into all three crt,s and see if the ethylene glycol has become contaminated or has leaked from any of the face of the tubes.

Dec 11, 2009 | Hitachi 53FDX20B 53" Rear Projection...

1 Answer

Bottom right corner has blue line blotches on screen most of the way across from right to left.

This is a Optics engine failure, Call sony to see if the warranty they extended on this model is still in effect.
If not then the the only way to resolve this issue is to have the optics engine replaced..

Nov 01, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

Blue spots on the screen.

Assuming that an alignment tool is not your problem, if the blue spots are regularly arranged in rows and
columns, I would have to say that the blue filter of your three tube (red blue green) array needs service.

Apr 14, 2009 | Televison & Video

1 Answer

Black blotch on bottom of screen

if you can take the screen out , then use some dish soap,rag and water to clean the black blotch

if that don't work you may need to use something a little stronger , but not enough to hurt the screen
please rate a fixya and I'll be happy to assist you in the cleaning process and care of the screen

Nov 07, 2008 | Toshiba 62HMX84 62" Rear Projection HDTV

2 Answers

Blue flashes on screen and then just quits

post your model. Sounds like the blue CRT is shorted. But let me know the model and I will let you know how to test it.

Apr 04, 2008 | Televison & Video

1 Answer

Samsung LCD HDTV - Color Problems

voltage adjustment for y-sus board or power supply

Mar 17, 2008 | Televison & Video

Not finding what you are looking for?
Sony Grand WEGA KDF-50WE655 50" Rear Projection HDTV Logo

86 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts


Level 3 Expert

98694 Answers

The Knight
The Knight

Level 3 Expert

69654 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Sony Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides