Hi to whom might be able to help me. I am interested in recieving for free a sony kp-57ws500 for free, but it will need all colour tubes replaced. I don't know if it would be worth fixing or going out and spending a few extra bucks and getting a new tv that would be up to date?

Sony does not make the tube available. They want you to remove the Red CRT with the Optic coupler and send it to them so they can remount a new CRT to the old Optic Coupler and they will send it back to you. This usually cost $300.00 to $400.00. It is a major tear down to remove the CRT and there will also ba a alignment of the convergence after the CRT is reinstalled. If you are really interested in doing this, let me know and I will do my best to give you instructions. Something else to consider is that the other 2 CRT's will likely need replacing soon. It is a lot of money to put into a older set that Sony is not supporting anymore. When you add up the parts cost alone for all three it is $900.00 to $1200.00. With the prices of LCD panels coming down in price you could replace the set for the cost of the parts alone.
I hope this helps,
Skyassoc

Prices changes all the tmes.Try website Tvrepairworld.com for buying refurbishes DLP CRTS Tubes.

There is no projection lamp in this TV. It is a 3 picture tube style rear projection.

HI,

ITS NOT PICTURE TUBE PROBLEM ,,

ITS PROBLEM WITH COLOUR CAPACITORS WHICH INSIDE TV,,

APPROACH TECHNICIAN..


TNKS

RABBANEES

there is a company called Video Display Which sells rebuilt tubes

Green CRT (tube) has following part number and description...

8-733-652-15 CRT 07MVC21(G)-L(FL)

Green Tube for KP-57WS500 is no more available and this can only be taken from any damaged / broken TV of same model.

Tube, that's what I was saying before.

Hi,
Let me know do you have related service manual of Sony KP-57WS500 to guide you further?
Without service manual it would be difficult for you to understand our directions like what to check and where to go in TV etc.

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.

Hi Guys

Your problem here has to do with the amount of aging that happens to the three colour tubes - red, green and blue.

Blue actually ages slower than red and green. What actually happens is the green tube deteriorates and due to green being the predominant colour for brightness causes the blue tube`s flyback lines to appear - especially when switching between inputs or when the video is blanked.

No replacing the blue tube will not solve your problem as the tube is actually the best one of the three.

As someone mentioned there is a way to adjust this by removing the speaker grill assembly in front of the set. Doing the service mode adjustment with the remote is not the right way to solve the problem - you would be adjusting the colour gain and off-set values and would seriously be compromising the white balance of the set.

On the left hand side behind the speaker cover you will see a black square block with six adjustment points. Look for the one marked SCR BLUE, Switch the set to a unused input so the blue lines become visible. Now adjust the BLUE point counter clockwise until the lines disappear. A small adjustment should do it, Switch back to a picture and make sure the whites are still white.

This should sort your problem. I would however suggest asking a Sony service centre to do this for you. This is a dangerous thing to do as you will be working close to the 35Kv supply the the anodes of the three tubes.

I hope this answers your question.

Goo luck.