Question about Sony KP-46WT510 46" Rear Projection HDTV

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Convergence problem My SONY kp-46wt510 has a convergence problem. flash focus doesn't work and manual convergence adjustment doesn't move in vertical position. When I start the TV it blinks 4 times. Which board or component should be replaced?

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  • red_TV Nov 28, 2007

    Thank you for your help. I did as advised in the suggested solutions: 3 fuses were gone and also one of the ICs, so I replaced protections on power board and beside the convergence ICs and both of the ICs as well. Now the TV is up and running again and our kids can watch their favourite programmes. Thank you tvtechnician and jjsmid for your exact solutions.

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You will need to replace the stk ic's they are mounted to 2 large heat sinks in side the tv. the ic numbers are on the chips themselves. i do believe it is stk392-510 for sony. once you have the number you can buy these anywhere online. just put new ones in and should be good to go. if this doesnt work then there are a few resistors and fuses by the ic's that sometimes fail.

Posted on Oct 12, 2007

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IMAGE GHOSTING


Have you tried the auto converge or flash focus adjustment? This feature allows you to adjust the convergence automatically. If it doesn't work,convergence circuit is faulty. You need to replace the convergence kit, To do this you need some basics on electronics.

Feb 01, 2011 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Flash Focus does not correct convergence problem and i cannot manually adjust the red convergence to proper alignment. Red does not move laterally only vertically. Picture is offset to the right with red...


No,any colors lines mis alignments.The tv convergence board parts are dead.The 2 STK convergence ICS and some or all it resistors are dead.These parts must be replace on the tv convergence board.To solveved convergence problems.The shop,will cost u $300-350 for parts and labors.

Aug 10, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

We moved our Sony Kp-51WS510 to the basement. After a few weeks


hello the convergance ic may be trouble it would be best to get a quote from an engineer to do it your self would be very time consuming good luck

regards
shaun

Feb 15, 2010 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

How do I get the front panel off my Sony 46in projection tv to adjust the red line conversion.


You cannot - or should not adjust the convergence manualy. The TV has a built in flash focus button on the front panel that you can press. Some sets also have a convergence menu. Use those. Adjusting the knobs in the TV will only make things worse.

Nov 12, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

The three colors on our set no longer converge. When we do the "flash focus" it goes through the routine but nothing is changed afterward. If we try to do manual convergence nothing moves or changes.


This sounds like convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually charge between $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Oct 23, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

The three colors on our set no longer converge. When we do the "flash focus" it goes through the routine but nothing is changed afterward. If we try to do manual convergence nothing moves or changes.


you have convergence circuit failure
there are a couple ics and a pico fuse or two that will need to be replaced

if you have the tools and some know how and can solder
the parts are available at tv repairworld

Oct 20, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Focus issue after replacing convergence IC's


pull the fron grill off the set then remove the cardboard covering the hole that is in the front of the set you will find a square box that has 6 controls on it adjust the focus for the red, blue and green crts, do not adjust the three marked screen control.

Sep 10, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Sony rear projection convergence


This is a convergence problem that is either bad connections on the convergence ICs or defective ICs. IF you can solder and feel comfortable working inside the set, you can fiox this yourself. Let me know if you wish to attempt the repair and I'll post more details and instructions.

Dan

Nov 06, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

CONVERGENCE IC ADJUSTMENT


My KP-46WT510 picture is out of alignment. There is no conversion of the red, blue and green pictures on the screen. They're off by about an inch of each other.
Some tech told me that it was the power control that was bad. I can see the picture, just very blurred.
Is he right? The tv was not move at all before this started happening.

Oct 22, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Red won't move...


ok this is an indication that the convergence output resistors might been blown.

Feb 28, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

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