Question about RCA L42WD22 42 in. LCD Television

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When the tv comes on picture comes on for a few seconds then screen goes blank?

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You may have failing 24vdc power supply or dying backlight inverter board, you need to check the 24vdc after the screen black out, or look at the sreen in the darkened room to see any glow from the screen, which in that case the problem can be in the T-CON or the main logic board.
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://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

Please post back what you find.

Posted on Jul 30, 2010

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