It looks like the vertical convergence IC is defective. Is a common failure on these TV sets.
I would suggest to change them both at the same, vertical and horizontal.
You will need to change your Convergence ICs and possibly the resistors right next to them. They are located in the very center board of the chassis on a heat sink !C8C01 & IC8C02 . The part numbers for these ICs are STK393-110. If you can solder you can buy these parts for about 10.00 each and takes maybe an hr to solder in. A TV shop will want at least 400. Thats sad but unfortunatly a reality. A service manual may come in handy as it list the locations and proceedures for realighning the colors with the remote, and will list the resistor ratings if they turn out to need replacing as well. You can get one for 10.99 for your set at the following link. They will email it to you if you ask them to. They also offer free unlimited support with the manual. Hope this helps let me know if I can assist you further or if you need to know where to purchase the parts.
http://servicemanuals.vstore.ca/
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turned tv (WS55511) off at night, was working fine. turned on in the morning and all convergence was way off. could not adjust vertical or horizontal on blue or red. Removed center board and looked at IC8C01 on both sides of board. No sign of overheating. Could not locate IC8C02 (not on same heatsink) looked on all boards but could not locate. I did find L9A52 and L9A50 (located on the center board) badly burned. Don't know what these components are, could you identify them and provide part numbers?
Need part numbers for L9A50 and L9A52 and where to purchase. Went to web site you gave for service manuals but could not find one for the WS55511.
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