Question about Sony Grand WEGA KDF-60WF655 60" Rear Projection HDTV

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Sony KDF60wf Projection TV

Set has no blue in screen. Have tried increasing blue gain in service mode, self diag. shows no problem with set. Blue faded from set over a course of 3 weeks. Sony currnetly has a re-embursment running for the optical block in this set, however none of the pictures of this problem, look like mine. Afraid to get reapir man if optical block is not the problem.

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You either have a bad Blue CRT or a blue drive transistor

Posted on Mar 10, 2008

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BLUE PATCH SHOWING UP IN LOWER LEFT CORNER -- GETTING LARGER AND DISCOLORATION INCREASING


This is called the blue spot defect.. NOT trying to be smart but it is known by Sony. It requires replacing the light engine. contact Sony customer relations. Your set is part of a fix . service bulletin e27964821 It expires march 2011. The repair will be free of charge to you once Sony issues your local service center a repair action work sheet.
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Feb 21, 2011 | Sony Grand WEGA KDF-50WE655 50" Rear...

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Sony KP-65XBR


This is the sony support page. Try this out. Click here

Jan 12, 2008 | Sony KP-65XBR10W 65" Rear Projection...

2 Answers

I have blue hazy streaks and tiny blue dots on my lcd tv


You need a light engine. I do not remember if your model is still under Sony's recall. You might want to call them.

Jul 08, 2010 | Sony Grand WEGA KDF-50WE655 50" Rear...

3 Answers

I believe the blue lamp in my 57H81 is going bad.


You need to replace convergence out chips in your Toshiba 57H81 tv by qualified tech because 3-D look picture in rear projection tv shows some thing wrong with convergence output chips.
Your tv model number shows it is rear projection tv that use 3 tubes to make color picture on front screen where as dlp tv use one lamp as back light source to present picture at front screen that is generated in light engine.

Mar 25, 2010 | Toshiba 57H81 57" Rear Projection...

1 Answer

Turn on the big screen sony tv, but fades to blue


You probably have a bad BLUE CRT. Due to the cost and the length of time it would take to repair, I would not invest the money into it. It would require a Qualified Service Person to come to your home and remove the BLUE CRT assembly and send it back to SONY to be rebuilt. Estimated cost would be around 800.00. I would check prices of a replacement set.
I hope this helps,
Skyassoc

Oct 27, 2009 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Turn on goes blue then turns off


The most common reason for a TV to display a blue screen with no picture is because the source device has not been set to the proper mode.

If you are using a cable or satellite set-top box, ensure that it is turned on and set to an active station. If the set-top box is connected to the television using a coaxial cable, then the television should be set to Channel 3 or 4 to receive the signal.

If you have are using a VCR that is turned on, but not playing a tape and not tuned to a receivable channel, then a blue screen will be displayed on the TV. To resolve this, turn off the VCR or tune it to a receivable channel. If a cable or satellite set-top box is connected to the VCR using a coaxial cable, then the VCR should normally be set to Channel 3 or 4 to receive the signal.

If the blue screen is not because of a connected VCR or set-top box, the TV may require service.

Sep 22, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Sony kp-57HW40, screen flickers with blue tint, then shuts off


The problem with you set is: focus block and(or) intermittent G1 short in a blue CRT(picture tube). To determine the tube failure, you must take front panel off, rectangular cover under it and gain access to CRTs. You will see 3 picture tubes with wiring and boards attached to them. on a bootom of the set there is a black plastic box with 2 rows of 3 potentiometers on it.one raw is for the focuses, the other one is for the screen controls. it will be written on the box with letters R.G.B. first: take a light isolated handle screwdriver and tap very slightly on the neck of the right tube. Do not brake the glass! That's the blue CRT. It might have a blue color sticker on it or blue socket. Tv must be on and running, while you perform the test.If your tapping on the neck makes blue flashing, your CRT is bad, if not, try to play with blue "screen" potentiometer by turning left and right, slightly. If that will cause the blue flashes and hard to adjust, replace the unit.
Good luck,
Alex's TV Service,
Philadelphia, PA, 215-806-5980.

Jul 12, 2009 | Sony KP-57WS500 57" Rear Projection...

2 Answers

ALOT OF BLUE ON THE SCREEN!!


Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
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Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Aug 20, 2008 | Philips 60PP9200D Television

1 Answer

Blue screen flashes and the tv shuts off


You will need a service manual you can get one here it could be the tube, video or numerous things. Your service manual is available at the following link. Plus online support
http://servicemanuals.vstore.ca/

Jan 07, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Blue tint screen in video mode


· http://esupport.sony.com/perl/news-item.pl?news_id=24
· Which models are affected with the "flicker" problem?
A1: There are 12 models in total: KDP57XBR2, KDP65XBR2, KP46WT500, KP51HW40, KP51WS500, KP57HW40, KP57WS500, KP57WV600, KP57WV700, KP65WS500, KP65WV600 and KP65WV700.

Jan 05, 2008 | Sony KP-57HW40 57" Rear Projection...

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