Question about Samsung LN52A750 52" HDTV LCD TV

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Wont stay on

Tv turns on ands off continually by itself picture never comes on

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  • panshine Feb 08, 2009

    deawoo TV keeps turning itself off and on, 2 weeks out of manuf warranyt

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2 Suggested Answers

  • 122 Answers

SOURCE: wont turn on

sometimes a new lcd t-con board solves the problem if the power supply is ok

Posted on Mar 09, 2010

budmrtn
  • 11361 Answers

SOURCE: We turn on the TV but no picture comes up. The TV

You may have problem due to unstable power supply due to bad DC filter caps, or short circuits in the backlight inverter board that caused the power supply to go into the shutdown mode, those are the two areas to check. You can try disconnecting the inverter board from the power supply to see if other functions of the TV will come back.
If you are going to DIY and have proper tools, knowledge of electronics 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 14, 2010

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hi this s grizmofreak
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