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Hello, I'm Shahid and will be happy to assist you.
TNPA5335BK SC board is available at following ebay supplier but price is bit high..
Grey horizontal bar across the screen (initial symptoms) indicate failure of SU or SD board failure as well, these boards are mounted vertically connected to SC board so be aware to replace them as well or new SC board board will get damage again. Please click SU board and SD Board link to view board images which will help you to locate them in TV.
I trust my input will help you out. Please feel free to respond if you have any additional questions.A positive rating to answer would be greatly appreciated, please click on 5 star on this page then click submit/finish button so I can get credit on website for my work. Regards,Shahid.
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