Question about Samsung LN40D550K1FXZA - LN40D550 40 1080p LCD TV - 16:9 -

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How do I change out the T-Con card of a Samsung 40" LCD television?

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I think that in the back on the upper left-ish back panel there should be a cover to take off. This is judging on mg 2012 42 inch samsung lcd tv.

Posted on Nov 06, 2014

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Posted on Jan 02, 2017

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I have a Samsung LN37550A LCD TV (full HD 1080) that is 2 years old. 2 days back the images got washed out. All I see is mostly very bright images and negative images. I am told that the TCON card needs to...


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It can be T-CON board or worst case the LCD panel itself. You can try reseating the ribbon cables between the T-CON board and the LCD panel first to see if it fix the problem.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Parts: www.shopjimmy.com


Please post back what you find.

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1 Answer

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Two causes: The T-Con bd is bad or the Main bd is bad.
Start with the T-Con bd first.

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try cleaning t-con board to lcd panel cable..........
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