Question about Samsung LNT4066F 40 in. LCD Television

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Turn on TV, blue light powers up but screen does not power on. turn off and back on a few times and screen eventually powers on. also get occasional light purple dots scattered about screen. disappears if turn off and then back on. what gives?

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I t may have dying power supply module due to bad caps with bulging/leaking top/seal. That will be the first place to look.
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

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Posted on Sep 30, 2010

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Posted on Jan 02, 2017

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The Vizio 1080P HDTV offers a variety of features and input jacks that make it a true multimedia centerpiece. Occasionally, however, there are a few scenarios in which the screen blacks out.

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