Question about Samsung LN40A550 LCD TV

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The screen is black and the power indicator light blinks

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Me too! i got the caps replaced and the tv still doesn't work. the main board is like $200 dollars. hdtvs are getting way cheap these days. i dont think its worth it. samsung is a terrible company for not doing the right thing and extending the warrenties when they dropped the ball on this one. why should we spend more? i recommend buying a new tv and never buying a SCAMsung product again.

Posted on Sep 04, 2010

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Unplug it for about an hour to see if it will reset itself, if not, you may have problem in the power supply section, that will be the first place to look.
If you are going to DIY and have proper tools 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

Posted on Jul 08, 2010

  • kavsher Aug 18, 2010

    i have similar problem changed out all power supply caps exceprt the 450v caps
    poweredon for a few min thenhight pitch squeek the back to no lcd balck with blinking
    lcd
    could this be a main board ?

  • MolotovTobac Sep 04, 2010

    me too! i got the caps replaced and the tv still doesn't work. the main board is like $200 dollars. hdtvs are getting way cheap these days. i dont think its worth it. samsung is a terrible company for not doing the right thing and extending the warrenties when they dropped the ball on this one. why should we spend more? i recommend buying a new tv and never buying a SCAMsung product again.

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fieldy14
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SOURCE: LCD TV model LA32R71BAX. The problem is the screen

unit has an internal problem, have an electronics tech look over the power supply as well as the main pcb nd the drive pcb for the lcd panel, it is rare that those symptoms are caused by the panel.

Posted on Jul 05, 2009

  • 610 Answers

SOURCE: screen is black & power indicator light blinks

power supply board has failed.

Posted on Oct 28, 2009

lovejoy91
  • 691 Answers

SOURCE: My Hitachi P50x01au plasma TV

I would open back and check all boards for cracks, this is a problem with these sets.Then count the blinks on the set and see if it stops for a moment and starts back.

Posted on Jan 19, 2011

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