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SONY KDL-46W4500 lower screen is dimmed

I own a TV SONY model KDL -46W4500 serial number 4321763 manufactured on 10/2008 in Spain.
A few days ago the following appeared:
The lower part of the screen is dimmed about 10 cm in height  -full horizontal and the image details appear twice.
If someone had a similar failure how did he fix it.
Report to my Email: stanko.nesic at gmail point com
Thank you in advance
Stanko, Belgrade, Serbia.