Convergience The convergience is slightly off on the entire screen but especially bad at the top left. Too bad to adjust. There is some defect somewhere. Please help. If I need a new part, which part? I have a schematic. Cancun Kid

Below is a link I have included. This is a site I use to repair parts in projection tvs. The kit includes detailed instructions on how to repair it yourself. If this told you something you did not know rate this solution as very helpful as I do this here for free.

ALSO, if you have questions reply to this posting and I will assist you--I am here to help.



http://www.tvrepairkits.com/xcart/product.php?productid=23609&cat=3647&page=1

I'll say the t-con board is defective.

Sounds like you have a convergence problem and the set will require repair. This repair will run somewhere around $400 if you have a good company complete the repair for you.

If you are interested in doing this repair yourself you will need to be able to use a meter and solder VERY well.

If you have more questions please email me.

Thank you,
Tim Nolan
[email protected]

Go to the following link and leave a email with the model number of your set and what ist doing and they will respond quickly with the info you need they have any part you would need for your RCA and they give free tech support with their parts.
http://servicemanuals.vstore.ca/

Not sure if you fixed your problem already. But the answer is a color convergence problem. You can try adjusting manually via the remote and if that doesn't work it is most likely the two main IC chips that control the color convergeance. It is also possible that not only the IC chips have gone bad but also there are a couple of resistors that usually burn out with the ICs as well. They will need to be replaced. This isn't something that I would attempt on your own. Typically a TV technician will charge between 300 and 400 to fix at your house.

Samsung makes a great product and has one of the best pictures out there. I have had mine for a couple of years and only experience a slight convergience issue on left and right sides of the screen after twenty minutes of run time. I am currently trying to figure out how to fix it.

This may not be the problem, but the following service bulletin may be of interest:

Last Update: 1/25/2006
Document Reference/Event ID: E30094243
Model: KDSR50XBR1, KDSR60XBR1
Subject: Picture might have a slight Greenish tint.

SYMPTOMS
Under certain conditions (especially cold/ first power ON), white areas of the picture may take on a slightly greenish tint after power on until internal temperature stabilization is achieved. Typically, this disappears after approximately 10 minutes operating time, however, in certain cases (i.e. colder conditions) the set will continue to fine tune the picture longer that 10 minutes. This is in order to create optimum picture performance under nominal viewing conditions.

This is not a defect but a characteristic of the LCD panels. Be assured that the time it takes to disappear will neither lengthen nor reduce over time.

If the condition improves but reduction in effect is desired, there are customer adjustments that can minimize this condition. Please demonstrate these adjustments with the customer, to determine if these settings are acceptable. (User adjustments are supplied in Solution A)

In cases where no Uniformity improvement is achieved (after 30 minutes power on time) proceed to Solution B; Optical block

Note:
Please be aware that all Optical Blocks exhibit warm-up behavior.
Replacing an Optical Block will not eliminate or significantly reduce the time below 10 minutes.

RESOLUTION

CAUSE:
Internal temperature stabilization needed.

Solution A)

You may reduce this effect by changing some user settings as follows:

(1) Change the Color Temperature setting to Cool - (refer to page 81-82 of the instruction manual). If further reduction is desired proceed to step 2.

(2) Slightly Reduce the Green bias (only available in PRO Picture mode under Advanced video settings), then select white balance Adjustment - (refer to page 81 of the instruction manual). Example:
a. Menu, Video, Picture Mode, Pro Mode
b. Menu, Video, Advance Video, White Balance, G-Bias (Reduce several steps)

Solution B)

Replace Optical block after gaining approval from Sony Tech. line.

could be a blu tuibe but also i've seen many bad sony CRT Drive bds(the circuit board connected to the neck of the tube). You won't find really any place cheaper than the next if your a consumer. just try partstore.com Oh, and forget about sony paying for it 4 years is way out of warranty.

Some of the problem could be a weak or damaged picture tube - especially if it encountered rough handling in the move. Other possibilities are bad capacitors in the power supply and deflection circuits which are common with this aged set. No adjustments come to mind that could permanently fix these symptoms.

My first inclination would be to check the picture tube, especially if the set is over 7 years old. If it is not that, then anything from bad solder connections to capacitors or a defective IC could be the cause. If it's over 10 years old, replace it. No use flogging a dead horse.