Question about Samsung LN-T4042H 40 in. LCD HDTV

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Power switch takes time to turn TV on!!!! Tv comes on after 8 to 10 tick ticks?

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You may have failing power supply due to bad DC filter caps, that will be the first place to look, report back what you find for further help.
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

Posted on Jul 30, 2010

  • hchanne Oct 11, 2010

    The technical advise provided by the Fixya team were very helpful in fixing power-up problem of our Samsung LN-T4042H TV. Four bulged capacitors - CM 806, 811, 812

  • Bud Martin
    Bud Martin Oct 11, 2010

    Thank for your feedback, this will help out other people also, If you can, you should replaced all the caps in the secondary side DC filter caps, because more likely the other will fail soon, please make sure to use good caps with 105c rating and low ESR type.

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